Wall of Sound

Recordings, Concerts and Audiophile Reviews
  1. Following the successful and fun meet held on March 6th, Frank Fazzalari has notified us that he is planning another get together on June 4th. Same location, but this time it will be at the rooftop space. Dolce Rooftop Featured items will include: Coherent Audio Model 12GR and Model 15GR speakers Triode Labs amps and preamps Tsakiridis amps Antelope Pure 2 ADC /DAC (perfect for high-quality ripping of vinyl) Nordost cables (tbc) All are welcome, to enjoy some great music, good company, special deals, and complimentary drinks. Details: Coherent Audio Meetup Sunday June 4, 2017 from 12pm to 6pm Best Western Premier C Hotel By Carmen’s 1520 Stone Church Rd E, Hamilton, ON L8W 3P9 Dolce Rooftop  
  2. Elekit TU-8340VK Amplifier Follow-up: French Impressionism, Triode Existentialism and Swedish Idealism? by Steve Graham   System Parameters: Triangle Antal XS speakers, mid 2000s vintage ‘Jane’ Aikido 12Vac line stage with a few tweak parts Cambridge Audio 840C CD player PS Audio Power Plant Premier for AC Conditioning My usual motley array of DIY interconnects and speaker cables Input & phase splitting tubes: Tung-Sol reissue (Russian) 12AT7W/6201 Output tubes: Electro-Harmonix 6550 The Triangle Antal XS Speakers (We come from France)  (video) A big thank you to my buddy Ed for graciously volunteering to bring these speakers over to my listening room.  Ed, you are a gentleman, I don’t care what people say.  The Triangles are normally driven, chez Ed, with DIY 300B SET monoblocks and a transformer-based passive attenuator or highly modded active line stage.  At first glance the Triangles seem like a sort of scaled-down version of my PSB’s.  A 1” metal dome tweeter, a 4” midrange, two 5½” woofers and a port grace the front baffle of these slender floor standing speakers.  Their rated impedance is 6 ohms and sensitivity 91db/w/m.  They are, in theory, an easier load and require significantly less power for equal loudness than my PSB’s [...]
  3. Achieving a State of Zen for Under $300 Canadian! by Steve Graham I was casting about, thinking of small speakers that I could try with the Elekit TU-8340VK amp I reviewed recently.  As a last resort, I took down the Radio Shack minis that I had on my workshop walls.  I placed them on top of a pair of floorstanders, connected them up and played a track.  Man, were they ghastly.  Bass was woolly, midrange dull and treble almost non-existent.  They had to go. Wharfedale is a storied name in British hifi.  They were known in the early days for really big, real wood cabinets with multiple drivers (some open baffles, too! -Ed.).  Then in 1981, they introduced the first Diamond.  It was a revelation.  A little speaker with full bass and a small price tag.  This goes back a few years, but it seemed like every Sam The Record Man store I went into, they were playing music quite loudly over a set of Diamonds – with the bass cranked.  I wonder how many people bought records after hearing them on a set of Diamonds. Wharfedale and Diamond have become so synonymous that it makes me wonder how they [...]
  4. We received word from Steven Huang that the acclaimed Dr. Atsumi Ohno has passed away in Japan; he was 92. Our condolences go out to Dr.Ohno’s family and friends. Although most audiophiles own cables which utilize the OCC technology, few know about the man behind the physics, chemistry and metallurgy of this process. Steven’s father worked closely with Dr. Ohno at the University of Toronto, and Steven maintains an informative page about Dr. Ohno and the science teams who developed and patented OCC. (link) Below is the message from Steven Huang of Audio Sensibility.   Dr. Atsumi Ohno. Inventor of the Ohno Continous Casting (OCC) process. Dr. Atsumi Ohno (1926-2017) I received the following sad news yesterday of Dr. Atsumi Ohno’s death from Hiroshi Soda who ran the University of Toronto Ohno Continuous Casting (OCC) Research Lab. Dear Steven, I want to let you know that Dr Ohno passed away on April 13 in his sleep. He was 92. It was sad news but a lot of good memories remain. Hiroshi Soda My father, Dr. Robert Huang (left), first met Dr. Ohno while both were doing their PHD studies in engineering at University of Toronto in the early 1960s. Dr. [...]
  5. Power (Tubes) To the People: A Survey of 4 Sets of Tubes in 2 Push-Pull Amps by Steve Graham   Regarding the picture above; No, I didn’t power-up with one of each installed and yes, I had four of each of the above tubes for the shootout. I did say after my 6DJ8 (part 1, 2) tube shootout, that I didn’t want to do another one soon.. but here I am, this time with power tubes.  There won’t be any unobtainable NOS tease-tubes this time, just current production. The inspiration for this test was the fun I had building and listening to the Elekit TU-8340VK (review part 1, 2).  I did a little bit of casual tube rolling during the review, but settled on Electro-Harmonix 6550 output tubes as decent, not expensive, all-rounders.  A raid of my box of 12AT7s yielded a quad of new production Tung-Sols, spares for my phono stage, which worked very well.  Though not the least expensive 12AT7’s available, the Tung-Sols are not outrageously priced.  The Elekit TU-8340VK I built and reviewed contained the resistor upgrade package and the less expensive of the two Mundorf coupling capacitor upgrades. Good-guy Jon at Thetubestore.com kindly loaned me the Genalex [...]
  6. by Steve Graham Of course you know I’m not going to answer the title question until the very end. So, you instant gratification types – I’m one of you – use your favourite scrolling digit and skip to the end, as long as you promise to come back and read the whole article. Now that you’re back, I have a little housekeeping to do first. Victor Kung called me just after part 1 was posted and informed me that I had made a couple of errors. In my defence, Victor is a wellspring of knowledge which he is only too happy to share, but at times it bursts forth from him with such speed and enthusiasm that I couldn’t jot it all down. Anyway, here’s the correction: “He (Victor) ordered special production runs of Takman 2% carbon film resistors to replace the stock generic 5% resistors normally supplied by Elekit. As well, he ordered two expensive, custom Amtrans resistors for use in a critical power supply location.” Later on in part one I should have said, “The amp I built came with the stock Elekit output transformers, the 66 piece Takman 2% and two Amtrans 2W resistor option and eight [...]
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