Tuesday, March 11, 2014

Phlatman & Bobbin Episode 6 - the WOSE BAVE caper

Our caped crusaders are on the prowl again, this time in search of righting audio misconceptions. Cleverly disguised by wearing Beats Audio earbuds and listening to iPod MP3 players, our audio avengers are under cover in civilian clothes, Ray Ban sun glasses over their skin-tight eye masks, and bright red clown noses so as not to reveal their true identities.

"Look, over there!" Bobbin yelled alerting Phlatman to a starry-eyed woman about to enter an audio superstore. "My wristwatch telekinetic thingamabob says she's about to buy...oh no...a WOSE BAVE RADIO!"

"Hurry, Bobbin, while there's still time!"

Our unmasked avengers scurry as fast as they can dashing fearlessly through oncoming traffic avoiding taxis and ignoring obscene expletives and hand gestures willingly volunteered by three hundred pound half-shaven drivers. "Put your iPod up to your ear and hold your hand out in front of you..." Phlatman injects. "...they'll think your someone important and stop more willingly."

Bobbin cocked his chin and rippled his lip. "What the *&%# is he thinking...this is downtown...no one stops for you in this city."

As our unsuspecting potential customer reaches for the door under the Pharmacy sign, our red-nosed heroes are still only half way across the four-lane street. "Hurry Bobbin, more hand waving and hold up your iPod as if it were a badge."

"Did you forget to take your Ridalin this morning Phlatman?"

Swerving through the yellow maze of befuddled inner-city taxi cabs, our heroes finally reach the curb and dash into the door. Left, right, forward, back, nowhere is she seen. Bobbin looks down at his wrist thingamabob and it points west past the paint cans. "Over there next to the frozen foods. She has the shopping cart with a wobbly wheel!"

Grabbing a hand basket, Phlatman raced toward the unsuspecting shopper tossing a bag of Cheetos into his basket to look less suspicious. The two catch up to her just as she walks past a stack of motor oil. Hiding amidst the fishing lures, Bobbin peeped over the top of a shelf while grabbing a can of mosquito repellant just like any other masked-hero shopper would do. Her hand was reaching for the WOSE BAVE RADIO box and a pimple-faced clerk was closing the sale. "She's going to do it! What should we do?"

Phlatman grabbed two of the worst looking purses he could find. "We'll distract her by asking her opinion about clothing accessories. She'll never suspect a thing!"

"Excuse me..." Phlatman said to the unsuspecting woman. "Can I ask your opinion?"

"Of course..." she replied with a definitely eastern twang.

"Which of these purses would you buy?" Phlatman held up the gaudy pair. "It's a gift for my special friend..."

Collecting herself so as not to projectile vomit onto the weirdly-clothed man, the woman put her hand to her mouth just in time and choked down the last temptations to spray the weirdest sunglasses she had ever seen.

"Well, to me, it just not right. I mean, it's nice and each piece has its own merits, but this is nothing I would ever be seen holding. I prefer something a bit more upscale, like GUCCI accessories myself."

"Exactly my thoughts...spoken with truth and sincerity. I know little of these things and rely on others to help me out." Phlatman paused to allow a sense of pride build in her unsuspecting mind. "I see you are buying a stereo..."

"Yes. My friend has a WOSE and she says its the cat's meow."

"Have you heard it?"

"Well, no, but she is a good friend and wouldn't lie to me."

"Just as you have shared with me the truth about these purses, I want to share with you the truth about that radio. Just as the individual items have merits, the WOSE is not much more than an iPod without ear buds. As you wouldn't be seen wearing these shoes and clothes, I wouldn't be seen listening to that particular system."

"What do you mean? WOSE ads are everywhere."

"And that makes it the truth? If what you desire is to seriously listen to music, save our money and make an investment in some serious audio gear. Much like buying GUCCI over ZHALMART, both do the job but which gives you greater satisfaction?"

"Well, the GUCCI would be much nicer..."

"Exactly. In the audio world, the equivalent of higher-quality accessories is called 'high-end audio' and there are two fine salons in town that cater to this type of equipment. Seriously now, do you want to spend hundreds of dollars on the ZHALMART purse when you could save up just a little more and owned a GUCCI?"

"I see your point. Where are these stores?"

"I'll be happy to share the addresses with you...and here's my phone number in case you have any other questions."

The two masked heroes strolled away past the peanuts as the woman yelled down the long aisle, "Thank you for saving me, oh masked marauder. You're my hero! I'll call you..."

"Quite the way to pick up a date, Phlatman..."

Stay tuned to this channel for our next episode when Bobbin asks, "So did she ever call you?"

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.

Monday, March 10, 2014

Mundorf Supreme Capacitor Review - Part 2

I am now convinced that Clarity SA capacitors are a really good "entry level" cap into the high-end, but they truly do not stand a candle to the Mundorf Supremes. It has been a few days of non-stop listening and a few more trials to convince myself I was not hearing something that was not there, and I must report that I was not.

When climbing the high-end audio ladder, one can throw a lot of money at trying to solve a weakness in your system not really knowing what the problem is. For example, when connecting my OPPO BDPO-105 directly to my amplifier, it sounded thin and a bit unnatural making me suspect that my Dared MC-7P tube preamp was needed to tame the sterility of digital source. However, that was only a preconceived idea recalled from previous experiences that did not apply to this situation.

What the direct-connection OPPO did was to reveal flaws in my crossover network components. While in-process of suspecting that the crossover was not up to snuff, I read reviews of the virtues of various capacitors finally deciding that the Mundorfs were worth a shot. Although expensive (roughly 3x the cost of the Clarity SAs they replaced), I can say with zero reservation that the Mundorf Supremes when shunted with the tiny Vishay 0.01uF MKP capacitors are an amazing combination, one that has few equals.

The ribbon tweeter in my system operates above 2,380Hz from a third-order Butterworth filter design. This means that there are two capacitors in series with the signal path to the tweeter and an attenuation/compensation network after that is used to nominalize the drooping top-octave response of the Peavey RD1.6.

Now if you did not understand what I just said, here is a simpler way to look at it. The tweeter needed to roll off sharply at the 2,380Hz crossover point and it also sounded very soft on the top octave. But there was a sneaky way to adjust for this soft sound by bypassing that part of the network used to match the tweeter level to the midrange/woofer level thereby boosting the signal from the amp to the tweeter much like a tone control or graphic equalizer does, but more precisely. Below is a picture of the new network.


BW3 Crossover for the Bozak Drivers

My speakers are tri-wired (yes, three sets of speaker wires per speaker) and the crossover network for the Peavey tweeter is on the RH side of this picture (on the tan board). The network is mounted on the outside back of the speaker so that I can easily work on it without having to open up the cabinet.

As you can see, all of the caps on the tan board use the black Mundorf Supremes and some of the caps on the black midrange/woofer board are still using the red Clarity SAs. The tweeter attenuator will be rebuilt next moving from an L-pad design to a T-pad version to help minimize standing waves in the interconnect cables. I will add a part 3 to this mini series to describe these effects some time in the future.

To describe the sound is truly difficult to put into words. Saying that the sound is "better" does not do this transformation justice. Using the standard adjectives other reviewers consistently employ also seems to fall short of achieving adequate praise. So let me say this: what I suspected to be a hopelessly poor-designed tweeter was in fact a highly resolved tweeter that pointed out the shortcomings of my crossover network components.

The sound is magical and effortless taking on a realism that I have rarely heard even from the finest of systems I have ever auditioned. Much like a car stereo that repulsively over-emphasizes bass, the sound of the Clarity SA capacitors seemed to be similarly non-linear overemphasizing the mid-band of their operating range. The Mundorf Supremes are sweet and not overbearing allowing the sonic content of any music to unimposingly fill the room. There is no over-emphasis in any part of their operating band making the sound silky smooth and detailed beyond belief. Nuances take on a life-like characteristic where subtle details I once strained to hear are now clearly revealed.

These Mundorf capacitors add a delicacy to the overall sound with which you can quickly fall in love. For example, track 10 "Peace" on disc 2 of the album "Living In Harmony" by Eric Harringer and John Paul Lacey uses low-level background recordings of crystal bowls, Tibetan bells, and tubular chimes that all have faint harmonics associated with them. With the Clarity SAs, these faint harmonics are lost but with the Mundorf Supremes they are not. The clarity and uniformity with which these harmonics are preserved retain the natural tonal balance and timbre as the resonances from each of these subtle instruments slowly decay into the background silence.

As the saying goes "the devil is in the details" and with the Mundorfs you will hear a lot more of them. I am very impressed by their inclusion in my humble system. Much like replacing that aging amplifier with a new PAS Labs, you are in for a treat if you replace your speaker's mediocre crossover network capacitors with these.

Another rung on the ladder climbed! I can only imagine how the Mundorf Silver-Gold Supremes may sound in comparison at a cost of 2x-3x of the standard Mundorf Supremes. Maybe one day...

Related articles:
The Vishay 1837 Review and Modification
Bypass Capacitors
Mundorf Supreme Capacitor Review - Part 1
Mundorf Supreme Capacitor Review - Part 2
Capacitors: All Things are NOT Created Equal - Part 0
Capacitors: All Things are NOT Created Equal - Part 1
Capacitors: All Things are NOT Created Equal - Part 2
Capacitors: All Things are NOT Created Equal - Part 3

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.

Friday, March 7, 2014

Mundorf Supreme Capacitor Review - Part 1

I have been S L O W L Y redesigning the crossover network in by Bozak B-302A rebuild project. I started out with Dayton Audio (read inexpensive) capacitors to keep down my investment knowing that all I was looking for was a solution to a problem. After months of testing, measuring, redesigning, retesting and re-measuring, the BW3 design surfaced as the best model for crossing the mid to the tweet.

I had a lot of luck with Clarity SA capacitors in the past so I naturally migrated toward these. Adding shunts to them (Vishay 0.01uF/200V MKP - the blue ones) made a huge jump in sonic improvement over the mediocre Daytons. But when moving to a planar tweeter, I could not get the sound "right."

Believe me, I tried a lot of approaches and even notch filters but nothing worked. Regardless of the design philosophy, everything made this fine driver sound like a cheaply-designed horn. One day, I dug around in my parts box and found some old Mundorf Supremes. The values were close - close enough to demonstrate to me IF the capacitors were the culprits, so I replaced a few of them. This was a VERY good thing to do.

The sound was immediately improved with another layer of the onion peeled back to the sonic truth. AND this was just one side of the BW3 that I changed. Saving up money, I replaced the other (smaller) side leaving one 10uF Clarity SA in the larger value side. Every time I eliminated the Clarity SA from the network, another level of sonic improvement followed.

Today, I received the last capacitor in the tweeter network, a 15uF Mundorf Supreme. Now this is NOT a cheap capacitor and needless to say I was hoping for the best but not really expecting to hear much of a difference at all. I was wrong - again. I flipped on the switch to the rig and listened to one track just as we were about to leave for dinner and what I heard was breathtaking. Nuances I never new existed leapt out from the tweeter. It is hard to describe the full impact until they break in so what I will do is just let you know I now feel I did not make a huge financial mistake.

So until they break in (I suspect a week or so should do it) know that I am happier than ever before with the sound of my humble rig. It is another step closer to the real thing and IMHO something you should consider doing once you get tired of swapping out your gear in the "amplifier of the month" frenzy.

Stay tuned for more...

Related articles:
The Vishay 1837 Review and Modification
Bypass Capacitors
Mundorf Supreme Capacitor Review - Part 1
Mundorf Supreme Capacitor Review - Part 2
Capacitors: All Things are NOT Created Equal - Part 0
Capacitors: All Things are NOT Created Equal - Part 1
Capacitors: All Things are NOT Created Equal - Part 2
Capacitors: All Things are NOT Created Equal - Part 3

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.

COMMENTS

I received an email from an individual requesting to post a comment about this article. Below is the unedited contents of that email.

Hi Philip,

I like to reply to your "Mundorf Supreme Capacitor Review - Part 1" from March 7, 2014.

You wrote that you had good results with Clarity SA caps but with a planar tweeter you couldn't get them to sound "right". Then you applied Mundorf Supremes and you had succes.

I am not as good as you on x/o enginering, all I know is you can change caps and hopefully improve on sound.

I am listening to a pair of Apogee Centaur hybrids: ribbon mid/high with conventional woofer. I was recommended Clarity ESA bypasses to better the stock x/o. This worked out very well. I got the taste of it and I wanted more. I decided to change a few caps with ESA's for a start. That just did not work, just as you experienced.

Considering the stock caps as old I wanted to replace them and was offered a batch of Clarity PX's. I consider them better then the stock caps. I tried the ESA bypasses on them, this again would not work. Also I tried changing just one cap in the high filter for an ESA. No luck either. Changing the PX for an ESA only works on the cap connecting the high filter to the actual ribbon with very good results, it's makes the speakers sing.
I honestly like the ESA for what is does to e.g. cymbals. But for whatever reason they don't mix with the PX's, it seems to me the positive properties get boosted beyond reasonable levels and it's very apparent and dominating, and narrows down the sound stage.

I wanted to investigate further and got me a pair of Mundorf Supreme bypasses, put them on the high-bank and they work miracles! I feel placing and seperation of tones and voices is crucial, and the Mundorf -as the PX does- provides it. The cymbals were not quiet up to ESA but the Supremes aren't broken in yet.

I think I will put more Mundorfs in my x/o, maybe replace a PX for an EVO and use the Supreme as bypass. The TinFoil Mundorf seem to be very good also and less expensive. Like you, my financials are limited.

You probably found it yourself, there's an interesting article about Mundorf here: http://www.6moons.com/industryfeatures/mundorf/1.html
Seems they're mostly hand-made what explains the price tag.

With regards,
Rick Vansloneker

Thank you Rick for your comments and subjective confirmation on a similar experiences to my own. I have only one Clarity ESA capacitor (an 8.2uF) and have found it to be somewhat sterile sounding compared to the Clarity SA and the Mundorf Supreme. However, your Apogees - a seriously fine loudspeaker - has a very different tweeter and may benefit from this capacitor. As you so properly stated, it is the final sound that makes the choice correct. If you like what you hear, then you have made the proper choice; if you are still unsettled, then continue your search for that "right combination."

Tuesday, February 18, 2014

Reference Digital Music

My personal Audiophile Grail is to turn on my system and have it make me feel as if the performance is going on in my listening room; I hope that yours is much the same. Many reviewers use a reference list of music sources to consistently evaluate gear and you should too. As explained previously in my three part blog series on “How to Listen,” you can intimately hone your acoustic skills with those intimate sources. While critically listening to any system, keep in mind that what sounds “good” may in fact not sound “correct.” Be aware of the audiophile trap: finding a “WOW” addition to your system that indeed sounds spectacular but moves you away from its realism.

If you do not have a list of your own personal favorites, here is a list of my digital favorites and what strengths each piece reveals. I encourage you to use your ears and listen to everything as if for the first time. Enjoy!
Eva Cassidy: Live At Blues Alley (CD: Blix Street G2-10046)
Sometimes live recordings have singular attributes that make them useful in evaluating systems while also being sonically entertaining and Live At Blues Alley is just such an album. Although Eva's vocals are slightly veiled with an occasional touch of sibilance and an over-use of reverberation both added by the PA system, this minimalist instrumentation allows you to hear the soulful art that lurks within her intonations and hides in her interpretation. On my favorites list in order of preference is track 8 "Fields of Gold," track 9 “Autumn Leaves,” track 12 "What A Wonderful World," and track 5 "People Get Ready." This no-frills recording should sound good on modest systems and exemplify her breathtaking vocal mastery on more revealing systems. Eva’s slow, soothing voice is a fantastic source for testing the midrange smoothness and articulation accuracy of your rig. It is truly a tragedy that she can no longer be heard and seen performing live.

Cirque du Soleil Musique: Mystere Live a/in Las Vegas (CD: RCA Victor ‎– 09026-62596-2)
Another one of my favorite live albums is the drum performance on track 12, “Taiko,” from the 1996 Las Vegas show. Dozens of various-sized drums surround the stage each contributing in unison their personal touch on a tribute to transient response. Several members of the cast play a captivating rhythmic introduction that leads to the solo performance at the 2:26 mark. Adjust your volume level to the quietest portion of this solo passage (2:45) so that its level is comfortable enough for you to easily discern the nuances of the drum stick on the skin. Then replay the entire track at that level and be ready for a treat. While you may be tempted to listen louder, you may find the dynamic range more than what your system can sustain. On modest systems, the drums will sound muddy and indistinct and their positions in the sound stage grouped to one side. On refined systems you will hear the drum sticks tap the skins just before the full resonant note is heard and a clear distinct position within the sound stage including subtle hall reverberations.

Alex De Grassi: The Water Garden (Blue Coast Records DSD: Special Event 19)
A well-recorded solo acoustic guitar brings a richness and awe to any audio system regardless of its quality. But to appreciate the resonances of the guitar body, inner detailing of the strings, and near-sibilant sounds of fingers sliding along their length one must step up to a more refined system. It wasn’t until I replaced my tweeter’s crossover-network capacitors with Mundorf Supremes that I could fully appreciate the impact of these words. The clarity revealed in the fingering alone was worth the money and other unexpected side effects drew me into Alex’s fully-focused mind. In just over five minutes, your own mind is transformed from wherever you were into a relaxing, tranquil and near-meditative state that invites you to pause and pay attention. About 30 seconds into this piece Alex snaps the strings with his fingers adding an upper-octave boost to an otherwise purely midrange performance. Play this piece at a moderately high level and listen for the intricate high-frequency resonances this snap makes to the tonal balance of his guitar. Also notice that the room in which the recording is made is quite dead and these snaps reveal little as to the hint of its actual size.

Dire Straits: Brothers In Arms (Original CD: Vertigo ‎– 824 499-2)
When I first spun the vinyl version of this album way back in 1985, I instantly realized that Mark Knopfler and the gang had created something sonically special that would pass the test of time, despite its Red Book format. Very few studio-recorded albums have ever achieved this level of acoustic perfection and those that do make this list. There are so many favorite tracks that I really have a hard time telling you where to begin, but begin I must. If I were to choose just one track, it would have to be track 5 “Why Worry Now” because of its incredible timing and the synchronicity achieved between instruments. The real attention-grabber in this recording begins at about the 4:25 mark where a low-level background maraca that had been keeping time suddenly moves forward for one beat in the performance announcing a change to the music. Switching from a guitar-featured ensemble, Guy Clark on the keyboards takes the baton and transforms you to another acoustic level. At this transition point, listen to the character of the guitars fading slowly into the background on their sustained notes. Then at the 4:35 mark, Knopfler unimposingly adds a small low-level guitar rift that again dies into the silence. Playing this track at a very loud level you find yourself straining to listen deep into the noise floor of your system waiting for the note to completely fade from your ears. On a good system, these fading notes quickly pass and in a more refined system these notes linger far longer.

Eric Bibb: Diamond Days (Master CD: Telarc CD-83660)
When any musician not only has a mastery of an instrument’s abilities but also the ears to hear the nuances between their types, it catches my attention. Eric is one of these refined musicians. His style, while merging blues, Cajun, and Christian, consistently finds its way into my heart from the sincerity and emotion it invokes. From his Paris meeting with Mickey Baker, Eric learned to love blues guitar, tradition, and simplicity preferring to create memorable music with minimal instruments. Track 4, “So Glad,” he momentarily deviates from this tradition and invites a much bigger band to the party. Although this studio recording has other tracks much less noteworthy, this one accurately captures the sound of his guitar, drums, and the timbre of his unforgettable voice. The mix places Eric and his guitar above the others, as it should be, allowing you to hear his words instead of overpowering them with the production. Listen to how the band is masterfully mixed to enhance but not overpower his vocals just loud enough to appreciate them but quiet enough so as not to distract you from his words. Listen to the brush gently tapping on the snare drum. On a good system, you will clearly hear the sound of the drum but in a refined system you will hear individual wires tap at slightly different times creating a different initial sound to that of the decaying sound. There is a certain hollowness in the drum skin evident after the brush whisk lifts that is not apparent upon its first striking.

Norah Jones: Come Away With Me (DSD: )
When I discovered that Ravi Shankar (the accomplished East Indian musician) was the father of this talented pianist-vocalist, I admit I had to chuckle. It seemed so unlikely for someone raised in one tradition to fall in love with another but Norah did and ever since we have all benefited from her romance with blues and light jazz. Title track 5, “Come Away with Me,” starts with a soft-mallet striking cymbals building to a swell and then gradually decreasing in intensity. Listen to the unmistakable brass sound of this cymbal as it resonates from center to edge. On a good system, you will hear solid-metallic overtones that pleasantly soften over time. In a highly refined system, there is a fullness that swells even as the sounds fades. The full tremolo of the background organ also appears two-dimensional in good systems and very three-dimensional in highly refined systems.

Anna Netrebko: The Woman The Voice (DVD: Deutsche Grammophon B0003705-09)
While a DVD-video, this is opera’s answer to popular and rock music videos that also contains classic selections by the incredible Anna Netrebko. Her melodic voice transports you to that place where music makes you tingle, even when you are listening to a type of music that is not your absolute favorite style. It took me a while to warm up to opera but one day a friend said to me something that totally changed my mind, “Opera is the equivalent of movies for that era.” With a new perspective, I now enjoy everything about how amazing the human voice can be. Although the entire disc is my favorite, in track 2, La Boheme: Musetta Waltz, choreographer Vincent Patterson arranges Anna singing in a car but first a brief introduction of violins resounds in the far corners of the concert hall. Listen for the sound bouncing off of the walls creating a front-to-back depth to the soundstage that is well preserved in this recording. Extensions of her voice also reveal a similar presence creating a striking visual/audible contrast that may confuse your mind: how can an orchestra fit into the back seat of an automobile much less reverberation of this magnitude? Once you wrap yourself around this contradiction, sit back and enjoy her concise vocal control, especially in her effortless range of dynamics. The entire disc is a visual thrill (especially the stunning colors in track 5, Rusalka, which has moved me to tears) and gives you an insight into the mental fantasies of a few of the great operatic composers. Do yourself a favor and use the disc’s subtitle feature if you do not understand foreign languages. This disc reminds you why you enjoy going to a live performance.


There are many more tracks that I find interesting and revealing and one day will make it to this list. For now, these will get you started on your own list of favorites.

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.

Thursday, February 13, 2014

The Mies i100 Integrated Amplifier Pre-review



If you regularly read my blog you already know that I am highly critical when it comes to equipment. Basically, if it doesn’t have an exotic core power transformer inside, I do not bother listening seriously to it. Of course other quality considerations are also essential – like a well-regulated power supply, high-quality signal-path components, and well designed grounding – and finding these in even the highest-end gear is sometimes elusive.

The good news is that a Canadian startup company called Mies is launching a piece of budget-minded entry-level high-end gear (see https://www.kickstarter.com/projects/2090572321/mies-i100-the-ultimate-amplifier-for-vinyl-lovers) that seems at the outset very interesting. From what I observe in the limited images on their site, I see a nicely designed piece of equipment with a high listenability potential. Called the i100, the Mies integrated amp will boast a compact design with not-so-compact features.



The Mies i100 Prototype

Despite its small footprint, Mies engineer Gunner Van Vliet has managed to squeeze a large toroidal power transformer into roughly 1/4th of the available space. Two reasonably-sized capacitors appear to smooth out the high-voltage section and two physically smaller but most likely equally-sized low-voltage capacitors snuggle up nearby. What this means is that for the money, a lot of attention is paid to making sure this amplifier is solid throughout its entire 40-watt power bandwidth.
Notice also the heat sink bank opposite the power supply with discrete transistors. These components make up the output stage and are coupled to high-current 5-way gold binding posts (my personal favorite).

Input switching is planned to support a high-level phono stage and two line-level inputs via gold-plated RCA jacks, plus a front-panel 3.5mm jack for your iPod or streaming media device. Also featured in this rear-panel configuration are full-bandwidth a preamp output RCA jacks and another pair of RCA jacks for your subwoofer amp making this an extremely flexible unit. In other words, you could use the i100 as a preamp and drive two external power amps via these two pair of output jacks, something to keep in mind as you grow your system.

I believe that this company has found a nitch in the market by offering these highly attractive features. An entry-level audiophile could purchase this unit and use it as an integrated amplifier. As funds permit, more amplifiers could find their way into this system driving larger speakers and subwoofers. By this time surely Mies will expand its product line and develop a more sophisticated preamp sporting possibly differential input/output connections. But that’s just a personal pipe dream and may have absolutely no bearing on what these folks at Planet of Sound have in mind. Mies already has a reputable audio track record with two all-tube amps, the m25a ($899 CAD) and m50a ($1,499 CAD). BTW, you can connect either one or both to the i100.


Mies m50a Stereo Power Amplifier

How can you get one? That’s the catch – you can’t. Today, it’s a sort of pay-it-forward approach where you invest in an unlistenable product hoping that what you see in the pictures of the prototype actually matches what the production unit delivers. At the current MSRP of $399 CAD, this is a reasonable risk to make and with an incentive of $100 CAD off that MSRP to the first 50 backers, it is down-right attractive.

If you are so moved, get in line with the tens of others, and sign up on their web site before March 13 or before the 50-limit number of backers is reached and save $100 CAD. Even at just under $400 CAD, this little unit could bring to be something to behold.



FAIR WARNING: Not hearing something and buying it strictly on visual impressions and word-of-mouth is risky. Know that I have not heard this unit myself and my comments are my personal, highly subjective impressions. It reminds me much of the old joke “Want to buy a bridge in Brooklyn?” If the production design follows the prototype pictures, the i100 could be a pretty darned decent unit. There is just no way to know for sure other than trusting these folks who say that the i100 will be a respectable sounding piece of audio gear.

I have been promised by the manufacturer, Planet of Sound, access to a first-generation production unit as soon as this company fulfills order commitments. I am waiting with baited breath for the arrival of this unit. Once it arrives (currently projected to be , I will review it and let you know my unbiased opinion.

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.

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