Friday, March 29, 2013

Component break-in periods and my OPPO

It is a mystery as to why new electronic equipment does this. When you first turn it on, it sounds fine but after time, something weird happens and everything you initially heard changes, that is if you are an astute listener as we audiophiles are.

I have heard this phenomenon in many different kinds of gear. With loudspeakers, you can attribute this change to diaphragm suspensions "loosening up" but more goes on than just in the easily comprehended mechanical world.  Capacitors change their sound too and at the microscopic level, stresses between plates and insulators shift and move ever so slightly. in this process, small amounts of heat are shed and combined with the heat from other components in the cabinet everything sort of "melts" into place.  Then you turn off your gear and the components cool down shrinking back from their minutely stretched position.

Given enough time, this tiny internal sub-micrometer movement makes audible changes in how equipment sounds. The mystery about it is why this change is suddenly so spectacular.  One day, you turn on your rig and that new piece of gear just lights up as if someone had lit a pop bottle rocket underneath it.  Everything about your initial impression changes and what was once an average sounding piece of gear can become a thing of beauty.

Perceptions of the tonality and depth are revised and nuances hiding in the background become predominant in the foreground.  The effect can be likened unto moving your seat closer to a performer. Say your friend comes over to your house and starts playing her guitar.  From the kitchen, you hear one version of what is happening in the living room and as you move into the room, everything about the performance changes.  Things that were always there suddenly become louder and the tonal balance becomes acoustically familiar.  Such is the perception once a new component breaks in.

I have been listening patiently for my OPPO BDP-105 to get to this turn of events and with 200 hours on the clock with no changes I was settling into accepting that the OPPO was as good as it was going to get.  NOT TRUE.  Letting it play from PANDORA while working on a new water garden in the front yard this past week gave this unit ample time to exercise itself.  Watching everything I could kept the unit busy. Turning it off each night cooled it down.  After about 200 hours of ON time, it happened: it broke in.

When a unit breaks in, it is not something that you "think" you hear or "suspect" that this or that is different.  When a unit breaks in, suddenly it sounds very different and given even a little more time the sound can change even more so.  It may be because you become aware of what is happening and you "tune in" your refined ears to wait for even more changes right along those same lines, and sometimes you are rewarded; other times not so much. 

With about 210 hours on the OPPO now, things are sounding VERY MUCH better than before.  Explaining what I hear is like describing the birth of a child.  Sometimes you just have to be there to experience that magic since words are so limiting - but I'll give it a go.

There is roundness to the tones of instruments that once were edgy.  There is clarity to the ambience where once there was only a hint.  There is a distinction to the pluck of a string where once there was just the sound created by it.  There is a depth to the emotion of the performer where once there was only a reproduction of the sheet music.  There is a shift in the pleasure you receive as a result of these minute and subtle changes that creates awe inside of you.  You may think to yourself, "Now this is what the designer had in mind when creating this piece of gear" and then go on listening mystified to the things that were always there but hidden.  It can be an experience as if you become part of the mix-down team and sit back to admire your own work.  It's magical and you may just find yourself shaking your head in disbelief that such things were possible.

Every decade or so, something happens in the audiophile world that changes the rules of the audio reproduction game.  Things just suddenly get better, more accurate, more lifelike, more real and after a break-in period, you may notice this happen to your beloved piece of gear too.  It is at this moment you find satisfaction in your purchase and a huge reward to your ears.  When everything "clicks" it's like a live performance where the audience and the performers become one raising the level of the performance to something impossible to duplicate in a studio.  The energy you feel from live musicians is amplified by the energy exuded by the crowd and the music is taken up another notch.  You begin to experience and then appreciate genius and for some become so emotional it can bring tears to your eyes.  You appreciate your own golden ears.


I am waiting patiently still now hoping that more will change and some of that last little bit of edginess will dissipate like the memory of a paper cut.  I am hopeful for even more exciting and awe-inspiring changes to take place and be able to share that with you.  For now, know that my OPPO has passed that magic moment when things are starting to click and the magic is unfolding.

Right now, it's 6AM and I am listening to Peter Kater's "Fire" album at a very low level.  My wife is still asleep and this is my quiet time.  I am so moved by this piece that I am thankful for my ears.  Paul Simon once wrote in a song, "thanking God for my fingers" when describing how he felt when making love to a woman and now I too thank God for my ears - and my OPPO.

See also Part 3 and Part 4

Also, see the simple FRED diode modification to the BDP-105 here.

Yours for higher fidelity,

Philip Rastocny
 
I do not use ads in this blog to help support my efforts. If you like what you are reading, please remember to reciprocate, My newest title is called Where, oh Where did the Star of Bethlehem Go? It’s an astronomer’s look at what this celestial object may have been, who the "Wise Men" were, and where they came from. Written in an investigative journalism style, it targets one star that has never been considered before and builds a solid case for its candidacy.

http://www.amazon.com/dp/B00QFIAC3G

My other titles include:
·      Althea: A Story of Love

Copyright © 2015 by Philip Rastocny. All rights reserved.

Wednesday, March 27, 2013

Bozak Rebuild Project - Part 7

Things are starting to settle down with rework on the book and I am taking a break after finishing the first section.  I want to start by saying that I am pretty happy with my Bozaks. Well, at least I was until I ran across a pair of JBL ST200 tweeters and tried them out.

The wishful/sinful  problem with the Bozaks is like any older speaker where it arrived at the time of the transition between tubes and transistors.  Tubes in this era did not have a lot of power and if you could afford a MC60 or MC75, you were one of the fortunate ones.  But typically a serious listener of that time would have a whopping 2 Watts class A or maybe 5-18 Watts class B at his/her command.  Needless to say, since amplifier power was at a premium, home speakers were VERY efficient and bass response was limited to about 50Hz.  The HF limit was also a challenge since cone tweeters were all that was available.

Rudy Bozak took the design approach of high efficiency and high transient response and decided that low-mass pistons (i.e., all moving mass) was as low as feasible while still retaining stiffness and low cone undulations.  His choice for tweeters was an aluminum 2.5" cone with a 3/4" voice coil and an aluminum dust cap. He called it the B-200 (X, Y, and YC models) and it evolved from fabric to metal cone materials and Alnico to Ceramic magnet materials.  The theory was much like that of a full-range driver today where different parts of the piston mechanically decoupled themsemves from the other parts of the piston and provided extended frequency response.  Here, the metal dust cap extended this driver's ability to produce frequencies above 6KHz to about 8.5KHz after which they pretty much fell flat on their faces.  The tweeters are really the weak link in this old technology design although the range they cover they do so very well.

The Bozak B-200Yc

Bozak B4000s have an estimated 1-Watt sensitivity of about 99dB/W/m but the B302As I have with only one 12" woofer in its compliment this is more realistically 96dB/W/m. Dome tweeters are few and far between at anything close to this sensitivity and it is why I settled on the Audax TW025A28.  It is rated at 96dB/W at 0.5 meters (duh!) so this tweeter is a bit down from the SPL of the rest of the system.  Finding tweeters or super tweeters today with a matching high 1-Watt sensitivity is a real challenge until you embrace the realm of horns. Bullets horn drivers are abundant in car stereo systems but most sound lke fingernails on a chalk board.  They scream and screetch but they go really loud with 1-Watt sensitivities as high as 110dB/W/m, rather outrageous when compared to the typical 86dB/W/m high-end speaker today. 

JBL introduced a hi-fi home tweeter called the JBL 075 using a non-metallic diaphragm. It went through several iterations (075, 2402, 2404, and 2405) in an attempt to improve HF dropouts and directionality (beaming) and ended up in the Pro lilne under different model names including the highly coveted "baby cheeks" 2404H (105dB/W/m).  Although this model uses an aluminum diaphragm, musicians and audiophiles alike still covet these units and as a result they are fetching easily over $200/pair for those still in good shape.  Those with the original diaphragms and matched pairs are even more desired.


The JBL 2404H

Not having access to such a fine driver, I settled on getting what I could.  Querrying Parts Express about current models, I ordered a pair of ST200 and waited for their arrival. Hoping for this driver to replace the current tweeters and super tweeter, I disconnected them both and added an L-pad to the existing network.  Once the levels were matched (practically nothing left to turn down this driver, almost all the way to minimum), you could easily hear the range at which the Bozak tweeters fell flat.  However, the compromise was that the quality of the ST200 driver was disappointing and after two days worth of listening it went back to Parts Express.

BTW, there was talk about a modification to the bullet on this generation of drivers that improved HF response so I tried it out to see if it did. Below are the two RTA near-field measurements showing the difference between the unmodified and modified bullet.





The microphone was positioned 1/4" from the tip of the bullet and the volume level was exactly the same from the amp in both measurements. The second order Bessel crossover frequency for this super tweetter is 12KHz.  Notice the improvements above 8KHz as a result of the modification. BTW, this mod is a broccoli rubber band placed at the throat of the bullet (pushed down evenly with a chopstick. However, look at the compromises in the midrange as a result of the modification (even though it is an off-axis measurement).

While still disappointed at the results, it helped me to understand the limitations of the existing drivers.  Returning everything back to normal, I appreciated the Bozak "sound" compared to the cheap compression horn (as opposed to a well-designed horn).  I am still searching for a high sensitivity planar tweeter to do the job for both the tweeter and the super tweeter but finding one that is high-end quality and has good dispersion characteristics is proving to be a challenge.

For now, I will settle for what I have and work on other planned crossover network changes (second order Bessel on both the LPF and HPF ends of the tweeter).  I am hoping this will correct some of the interaction issues between the midrange driver and the tweeter near the crossover point and possibly smooth our the overall midrange response. I am encouraged by the progress I have made in balancing the sound from these speakers.  Here is an RTA graph of where the system currently sits as measured from my reference spot.


Stay tuned for more insights in Part 8.

See also Part 1Part 2, Part 3, Part 4, Part 5, and Part 6 

Yours for higher fidelity,

Philip Rastocny
 
I do not use ads in this blog to help support my efforts. If you like what you are reading, please remember to reciprocate, My newest title is called Where, oh Where did the Star of Bethlehem Go? It’s an astronomer’s look at what this celestial object may have been, who the "Wise Men" were, and where they came from. Written in an investigative journalism style, it targets one star that has never been considered before and builds a solid case for its candidacy.

http://www.amazon.com/dp/B00QFIAC3G

My other titles include:
·      Althea: A Story of Love

Copyright © 2015 by Philip Rastocny. All rights reserved.

Monday, March 25, 2013

OPPO BDP-105 Review

The OPPO DBP-103 is the current entry-level Blu-ray player of OPPO Digital product line, a truly fine Blu-ray player and a really decent streaming media playback system.  I auditioned a BDP-103 for several weeks thoroughly impressed by its stellar video performance but somewhat unimpressed by its average audio circuitry.  The BDP-103 is a solid unit and a super value at $499 but if what you want is the Formula-One version, don’t settle for the frugal NASCAR.

The OPPO BDP-103

OPPO also makes the flagship BDP-105.  With this model, OPPO added considerably more to the design budget and added a seriously good digital-to-analog converter (DAC), the gizmo inside of the player that translates the little ones and zeros into the music.  The BDP-103 uses Cirrus Logic CS4382A 8-channel 24-bit 192KHz DACs and the BDP-105 uses the ESS Sabre32 Reference DACs.  The difference between these two DACs makes the audio section of the BDP-103 is as different from the BDP-105 as an MP3 player is from a standalone high-quality CD playback system.  In other words, both play music but what do you really want to use for serious listening?  Do you want a Generation Six NASCAR or a SOTA Formula One?

The OPPO BDP-105
The ESS Sabre32 Reference DACs in the BDP-105 are in a word amazing.  The sound stage is wide, deep, and tall with rock-solid imaging and inner detailing rivaling that of my analog vinyl – but still with a little way to go.  The sound is crisp, clear, and not at all fatiguing, something I absolutely hate about most other digital playback systems.  Who wants to seriously listen to music for 15 minutes and then go take something to relieve your headache?  Well, the OPPO BDP-105 keeps me out of the medicine cabinet and in my listening chair.

For example, the BDP-103 when playing the Bluecoast 24-96 recording of Alex de Grassi playing Greensleeves on his 39-string guitar (http://bluecoastrecords.argoarts.com/alex-de-grassi-greensleeves) is light, airy, and delicate as the fingering slides effortlessly across the frets and glides gracefully down the strings. The tonal character of the guitar body is full and vibrant along with the upper resonances of the wirewound strings held during long notes decaying uniformly into the distant background. Ambiance of the performance is somewhat masked by the addition of reverberation and the spatial characteristics of the room suffer as a result. But the emotion and the mastery of the instrument shine through to that point where the upper harmonics are just not present as with the finest DACs.  As a result, the overall performance sounds a bit veiled, compressed, and muted as if the recording somehow compromised on the quality of the process (something I am certain that is not happening here). So thus a quality digital audio recording can reveal the limitations of this unit.

With the BDP-105 on this same performance, there is a sparkle to the strings that is muted with the BDP-103.  String resonances take on a luster and sheen that remind you of sitting down at a table in a piano bar a few feet from the instrument.  This unit is so good I am considering what other tweaks are necessary in my system to keep pace with this unit as my signal source.  The new OPPOs both have an R-C coupled output stage meaning that DC pops and bias thumps are not passed on to the preamp (or your speakers) but this compromise adds a bit of top-octave color that other high-end DACs do not contain.  If you have a fast tweeter in your system (either planar or light-weight dynamic), you will notice this lack of detail in the top octave.  The OPPO’s top octave is still “decent” but there are improvements available from many after-market upgrade sources that may cure this compromise.  One of these improvements could be as simple as a high-quality shunt capacitor across the existing electrolytic capacitor, something OPPO could easily institute at the factory.

Anyway, the video section of the BDP-105 is also surprisingly better than the BDP-103.  Although the specs do not show any difference between these two fine units, the BDP-105 has a stunning video image.  The improvement over the BDP-103 is evident but you have to look for it to see it.  The detail in background textures is one place this difference subtle shows up.  For example, look at the clothing worn by Po in Kung Fu Panda – 2.  The brown burlap weave shows its presence in the BDP-103 and in the BDP-105 you can see texture and shadow.  Po’s individual arm hairs stand out with the BDP-105 where with the BDP-103 they are there but not as distinct. 

The BDP-105 also sports a toroidal power transformer, something to look for in any really high-end component.  The audible effect I've noticed using a toroid over an I-E style found in almost everything is that the bass response is thghter and deeper.  This also holds true in the OPPO where bass is exceptional revealing much of the detail in my reference analog source.  There is no strain heard throughout the whole spectrum and listening becomes less critical or analytical and more pleasurable.  SACDs sound luxurious and very close to the "being there" experience all high-enders strive to achieve.  Standard CDs sound - well as good as they can due to the insanely limiting format of 16-44.  While the power supply is not linear, it too is a logical place for aftermarket improvements.

I have not removed the cover as yet since I am waiting a few weeks to rule out infant mortality but once the initial burn in phase is passed I will reveal more of what goes on inside.  Speaking of burn-in, this unit takes a lot longer for this to occur.  Other reviewers have reported as long as 200 hours before things start to settle down and I have clocked about 70 on mine.  I can say that this morning is the first time I have heard any sign of change for the better.  I'll update this review with a followup after the 200 hour mark is reached.

And now for the not-so-good stuff...
I still cannot stream directly from my Seagate BlackArmor 220 NAS but emails with OPPO service assure me that the patch is in progress.  (BTW, their service department is responsive unlike others where you seem to reach a "black hole".)  I have personally heard a Synology NAS stream through a OPPO BDP-95 but neither the BDP-103 nor the BDP- 105 cannot handle the Seagate (a known DLNA and SMB 3.0 issue).  Accessing the 220’s network share infinitely hangs both OPPOs.  For the time being, I have a 1Tb USB drive containing my FLAC collection and, while inconvenient, the OPPO spools directly from this source with no issues.

Another issue I have found is that the volume control is unresponsive when playing a FLAC file with no content information (I play a high-res Pink Noise file for use with my RTA to make periodic before/after tweak measurements).  Holding down the volume key does not show the volume level display on screen and the volume does not change.  After a while, the unit catches up with the remote control command and all is well in OPPO-land once again.  Service asked me to unplug the network and see if I could repeat the problem (disables the search).  It did not and reverted back to its flawless performance coordinating remote volume control and on-screen display (also repeated with an MP3 file at OPPO service).

The BDP-105 is a $1,199 investment and because of its price it is not for everyone.  But for those wishing to combine the features of a spectacular Blu-ray player with a stellar DAC, this is a two-in-one win-win scenario well worth the investment.  For me, serious listening is still delegated to the analog audio source and will continue to do so for some time.  However, the OPPO shows that there is a glimmer of hope on the horizon for one day retiring my vinyl and embracing the digital age fully.  With the introduction of larger size samples (24 and 32 bits) at least music doesn't just go deaf as the echoes fade.  But there is still work that must be done in reconverting digital back to analog and until then, I still think all digital is relegated to the NASCAR category and not Formula One.

Related Articles See all entries about the OPPO BDP-103 in Part 1, Part 2, and Part 3; see all entries about the OPPO BDP-105 in Part 1Part 2Part 3, and Part 4 and the updates here and here.



Also, see the simple FRED diode modification to the BDP-105 here.

Yours for higher fidelity,
Philip Rastocny

I do not use ads in this blog to help support my efforts. If you like what you are reading, please remember to reciprocate, My newest title is called Where, oh Where did the Star of Bethlehem Go? It’s an astronomer’s look at what this celestial object may have been, who the "Wise Men" were, and where they came from. Written in an investigative journalism style, it targets one star that has never been considered before and builds a solid case for its candidacy.

http://www.amazon.com/dp/B00QFIAC3G

My other titles include:

·  Extreme Audio 1: House Wiring·  Build an Extreme Green Hot Water Solar Collector
·  Extreme Audio 2: Line Filtering·  The Extreme Green Guide to Wind Turbines
·  Extreme Audio 3: Chassis Leakage·  The Extreme Green Guide to Solar Electricity
·  Extreme Audio 4: Interconnect Cables·  Meditation for Geeks (and other left-brained people)
·  Extreme Audio 5: Speaker Wires·  Althea: A Story of Love
·  Extreme Green Guide to Improving Mileage·  Build an Extreme Green Raised Bed Garden
·  Extreme Green Organic Gardening·  Build an Extreme Green Rain Barrel
·  Extreme Green Organic Gardening 2012·  Build an Extreme Green Squirrel-Proof Bird Feeder
·  Build an Extreme Green Composter·  Extreme Green Appliance Buying Guide

Copyright © 2015 by Philip Rastocny. All rights reserved.

Sunday, March 24, 2013

OPPO BDP-103 - Part 3

Home theater systems have come a long way since their conception. With its infancy in the 1970s and 1980s FM simulcasts where video was shown on TV monitors and stereo audio heard through FM radio stations (TV/FM stereo simulcasts), attempts to improve the quality of sound found in standard Over The Air (OTA) broadcasts slowly moved forward from this highly resourceful approach.  As sort of test to understand how receptive an advance in OTA technology would be received by the viewing audience, audiophiles (myself included) took every opportunity to schedule any viewing of these broadcasts and made sure to supply feedback to the radio and television stations involved.

1973 Cat Stevens TV/FV Stereo Simulcast Concert

From these early efforts by audiophiles and videophiles, continual improvements in technology were pushed forward.  Without this urging and demand, the state of the art will not advance; there must be a demand for a product without which even the best ideas will never see the light of day.  The proof lies in many areas, the most notable in digital television. With digital television, good audio is available OTA without the aid of additional components and complicated setups.

Digital media is now maturing from its modest beginnings also starting in the mid 1980s to sophisticated players, outboard DACs, enhanced source formats (24/192, etc.), and lossless file formats.  Players too have kept up with this frantic pace by investigating and resolving many of the issues unknown to exist until comparing the original sound of the instrument to the sound produced through the players.  Anti aliasing filters, clock jitter, power supply isolation, noise immunity, grounding, and many other areas of design within these new generation players have produced products that actually are beginning to sound like the performances they wish to preserve.

It took Nakamichi 20 years to add adequate bandwidth to cassette tape recorders and players to capture much of the realism possible with slow cassette tape speeds; it took the digital industry a bit longer to understand what was wrong with the original digital standards and theories. But now, finally, 1s and 0s are starting to sound more like the real thing and one bargain player to do this is the OPPO BDP-103.

Nakamichi 1000ZXL

While not perfect and not what an audiophile-aholic would consider to be in the current high-end class, the OPPO BDP-103 is a real bargain and literally performs heads and shoulders above the crowd. For its price point, this player should find its way into many (hopefully all) up-coming audiophile home theater systems.

Not only does this player provide WOW video quality on everything I have played including NETFLIX streaming videos, but also the sound it produces is remarkable for such a cheap product. It takes at least 60 hours of playtime for this player to begin to sound decent but after this time the annoying edginess disappears and music begins to flow. After a full week of 12-hours a day play time, this is what I hear.
What I noticed in particular is the roundness in woodwinds where clarinets deliver those sweet resonances in the lower registers of its range. Trombones do much the same yielding similar characteristic nuances of big brass horns coupled with the texture of the vibrating lips inside the mouthpieces. Such clarity can only be revealed in players that do things right, as does this one.

As the spectrum demands increase with rising frequencies, this is where the OPPO begins to reveal its design compromises.  Ambience, echoes, and front-to-back imaging is highly adequate and much better compared to the average Blu-ray player on the market  although mediocre compared to the SOTA.  Listening to streaming digital music is no longer so objectionable (fingernails on a blackboard) that it must be done from the quietest background volume levels. You can actually turn up the volume and appreciate the performance without getting fatigued by digital playback, at least on quality recording (nothing can improve a source already hopelessly digitized). 

For example, the Bluecoast 24-96 recording of Alex de Grassi playing Greensleeves on his 39-string guitar (http://bluecoastrecords.argoarts.com/alex-de-grassi-greensleeves) is light, airy, and delicate as the fingering slides effortlessly across the frets and glides gracefully down the strings. The tonal character of the guitar body is full and vibrant along with the upper resonances of the wirewound strings held during long notes decaying uniformly into the distant background. Ambiance of the performance is somewhat masked by the addition of reverberation and the spatial characteristics of the room suffer as a result. But the emotion and the mastery of the instrument shine through to that point where the upper harmonics are just not present as with the finest DACs.  As a result, the overall performance sounds a bit veiled, compressed, and muted as if the recording somehow compromised on the quality of the process (something I am certain that is not happening here). So thus a quality digital audio recording can reveal the limitations of this unit.

Alex de Grassi 39-string Guitar

I can only imagine what the BDP-105 sounds like in comparison to this unit. Would is sound twice as good?  Now the answer to that depends upon the system into which it would connect.  If you are running average equipment, I would say no. If you - or if you soon plan to - have high-end gear, then yes.  Even so, consider the 103 if you believe it will be two years for your system to climb the high-end summit - OR if like me - you do not use a digital media streamer for serious listening.  During this time, you will enjoy a great piece of gear and when OPPO comes out with the BDP-115 or BDP-125 or BDP-135 or whatever, you'll be among the first on the list to pre-order yours.


Related ArticlesSee all entries about the OPPO BDP-103 in Part 1Part 2, and Part 3; see all entries about the OPPO BDP-105 in Part 1Part 2Part 3, and Part 4 and the updates here and here.



Also, see the simple FRED diode modification to the BDP-105 here.

Yours for higher fidelity,
Philip Rastocny



Copyright © 2015 by Philip Rastocny. All rights reserved.

Friday, March 1, 2013

OPPO BDP-103 - Part 2

After a bit of a delay from the huge storm that rolled across the country (Mother Nature flexing her muscles again), Federal Express delivered our newest toy safe and sound Wednesday morning.  Initially, I was bummed hoping to have it last weekend but alas, I watched the Daytona races Saturday and Sunday instead of our movies.  More and more titles are showing up on the edge of the table so this nonverbal communication from my story-loving wife continues.

The feeling of a new addition to the audio family is one of mixed emotion. On the one hand, I am thrilled to finally get a Blu-ray player that can play movies with the clarity I dreamed of for years. On the other hand, I am fully aware of other scrutiny I will impose on our existing equipment as a result of playing movies with the clarity I dreamt of for years. This is truly a two-edged audiophile sword.

Ignoring this dilemma for the moment, I realized how much adrenaline was flowing through my veins so I slowed myself down and cautiously unpacked the unit, inspecting it carefully.  I already downloaded and read the manual last week so I was pretty much prepared to get going and see what it could and could not do.  With the adrenaline dissipating, I detached the old boat-anchor of a Blu-ray player from the system routing cables and cords for the physically larger OPPO.

With the unit lovingly connected, I realized that in my haste I unplugged the network cable (must be some residual adrenaline I can blame for this).  The unit powered up and now came the steps to get it working synergistically with the rest of my system.

I do not have a surround sound home entertainment system nor do I desire one.  So the first task was adjusting the myriad number of settings, most of which I had never seen before in any Blu-ray player, to convert this multi-channel system to a stereo player.  With network connectivity working, I then had to administer my router and network access storage system for the new configuration.  All went well and Pandora was billowing from my speaker within a few minutes.  Streaming audio…well, we’ll get to that in a minute.
Most audiophiles understand that there is a “break-in” period new electronics must undergo before a component’s audio quality can be properly evaluated, the OPPO being no exception.  I have read online that 50 hours of play is typically what it takes so my initial response to the unit’s rather midrange-dominant and forward sound kept me hopeful for improvements in the future.  I used a Monster HDMI cable to the Samsung’s LN52A650 HDMI-1 input and fed audio directly to my Dared MC-7P tube preamp via my custom made single-ended RCA interconnects.  Until the unit settles down (at least after this 50 hour break-in is completed), I have decided against performing the video calibration with my DVE HD Basics calibration discs.

After about 30 hours of play, the OPPO is starting to sound rather musical and the midrange dominance has significantly subsided (alleviating my initial fear that I had just bought another boat anchor).  Pandora is amazing.  I initially bought this unit as a “background music streamer” and I am delighted to say that it significantly exceeds these modest expectations.  The Cirrus Logic CS4382A DACs (8-ch, 24-bit, 192kHz) are more than adequate for my modest expectations and have proved to be a delight.  The bass is sweet, tight, and snappy while the midrange smooth and revealing.  The highs are still a bit edgy compared to my analog vinyl reference but even this seems to be subsiding as time passes.  It still has that “digital signature sound” where in seems to pre-echo but not to an overly objectionable standpoint.  All in all, with only 30 hours of break-in, this is a solid audio performer.

Now, on to the video section.  After using the Sony, this is eye candy.  My wife’s favorite phrase is “Did we buy a new TV?” to which my response is “Sort of…”  Seriously, this is the clearest I have ever seen our TV appear.  Colors are deep and rich and many of the resolution and approximation problems of the previous players are now gone.  The processing is very fast and hesitation free.  Only once have I observed jitter and that was on a PBS video last night watching the special on the Canadian Wolves and Buffalo.  There is still some random “JPEG” noise at the borders of high-contrast regions in motion scenes (e.g., face edges have a speckled halo around them), but these are no worse than ever before and once I finish calibrating the system I hope that this too will improve.

The picture quality is truly remarkable.  Watching old videos is like watching a new video in that we see more than we ever have before.  For example, the iris in the opening scenes of SKYFALL have enough detail to resolve curved lines etched into the elements of the iris.  Before, this appeared to be a flat piece of metal, no texture or lines.  Men’s suits too show pinstripes before unknown and there is a texture to sweaters and folds in clothing that draws you into the scene even moreso than before.  Other detail enhancements include better color balance, better color blending, better deep blacks, and less softening or intentional blurring (what I perceive as digital approximations).

The most pleasant surprise feature of the OPPO was its remote-volume control and muting independent of the preamp volume control.  Now, I can set the playback volume on the preamp to a level I desire for playing my reference vinyl albums and adjust the volume of the OPPO up or down without grabbing another remote.  These folks were really thinking when they implemented this feature and I love it!

So, now I have the other video source piped via an HDMI cable into the back of the OPPO (my DirecTV DVR) and I can use the DACs in the OPPO to decode the audio stream from the DVR.  This too is cool since the audio quality of DirecTV is abominable (not even what I would qualify as low-end hi-fi).  Even though sibilance is still an issue, the sound is smoother and less irritating than if I were to run the DirecTV audio direct to the preamp (i.e., use its built-in DACs).


Now for the not-so-good news.  I have a Seagate NAS 200 configured as a music server.  My old WD TV Live streamer did not have an issue streaming audio from this box, but the OPPO does.  This is not an issue with the OPPO but rather that NAS.  The Seagate uses what is called “mimiDLNA” which is not DLNA certified.  The result is that the OPPO “sees” the server and the server “recognizes” the OPPO (login and password are matched appropriately and trying to access shares not granted permission from this login are rejected), but when viewing the FLAC files in the MUSIC folder, the list is never displayed (LOADING icon never finishes).  Other friends with DLNA-compliant servers do not have this issue (a recent email from OPPO's outstanding service department has assured me that they will address this in a future firmware release and not to sell my NAS).

For now, I have a backup USB drive plugged into the back of the OPPO from which I can stream any of these FLAC files with no problem and amazing clarity.  The high-res 24-96 and 24-192 files are stellar and dearly demonstrate the audible differences between the three formats (from 16-44).  This DLNA issue was raised by OPPO owners even before I bought the player so I was aware of my chances at making this work.  As of today, I have not found a solution to this issue so it appears that I must go for a very different NAS (other than the Seagate BlackArmor series anyway).

I will update this posting and give whatever tips I can on how to improve this already fantastic player’s performance.  Give me some time and who knows what I’ll uncover.  For now, I am a very happy camper!


Related ArticlesSee all entries about the OPPO BDP-103 in Part 1Part 2, and Part 3; see all entries about the OPPO BDP-105 in Part 1Part 2Part 3, and Part 4 and the updates here and here.



Also, see the simple FRED diode modification to the BDP-105 here.

Yours for higher fidelity,
Philip Rastocny



I do not use ads in this blog to help support my efforts. If you like what you are reading, please remember to reciprocate, My newest title is called Where, oh Where did the Star of Bethlehem Go? It’s an astronomer’s look at what this celestial object may have been, who the "Wise Men" were, and where they came from. Written in an investigative journalism style, it targets one star that has never been considered before and builds a solid case for its candidacy.


http://www.amazon.com/dp/B00QFIAC3G

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