Capital AudioFest 2011

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John Atkinson | Jul 10, 2011 | 1 comments

This room was pitch-black when I went in, so, sitting in the listening chair, I held my camera over my head, crossed my fingers and my heart, and pressed the shutter. What the flash revealed was a nicely finished pair of 2-way towers, the Carnegie CST-1s ($1999/pair) driven by an Onkyo Reference M-5000R 150Wpc amplifier. The CST-1 combines a 1"x3" Mylar-film planar tweeter with two 5.25" composite-cone woofers in a transmission-line enclosure. Carnegie's Ron May asked if I would like to hear some Nils Lofgren but to my surprise, he didn't select the track "Keith Don't Go" from the Acoustic Live CD, which has been a fixture at recent audio Shows. Instead he played me "A New Shoulder to Cry On," which sounded excellent. Carnegie is designing its products for the "Affordable Audiophile," an admirable goal.

Capital AudioFest 2011

Cathedral Speakers

John Atkinson | Jul 10, 2011 | 0 comments

This room was packed each time I poked my nose in, so I didn't get much of a listen. The company's website—www.cathedralspeakers.com—explains that "Once you hear your favorite music on a pair of Cathedrals, you will never go back to ordinary speakers." Driven by kit versions of AudioNote tube amplifiers, the big, two-way Cathedrals feature Eminence woofers in enclosures fabricated from hardwoods rather than the usual fiberboard, and produced an equally big sound. Price is $6995/pair for the Model 3113 being demmed, which has an Altec 811-B horn, $7995 /pair for the 7117, which has an Altec 511-B horn.

Capital AudioFest 2011

Soundfield Audio

John Atkinson | Jul 10, 2011 | 4 comments

"Where's the tweeter?" I asked after a listen to the 97dB-sensitive Soundfield speakers, shown at Capital AudioFest in prototype form. It turned out the top drive-unit is a 12" coaxial unit, with the HF unit mounted where the dust-cap would be. "So the big-ass 18" dipole unit is the subwoofer?" No, it was explained, the18" unit in the speaker's center, behind the grille, is the woofer, covering the range from 50–200Hz. The bottom 12" unit, mounted in a sealed enclosure is the subwoofer, handling frequencies below 50Hz. With the coaxial and 18" drivers operating as dipoles and the bottom12" unit omnidirectional, by varying the crossover between the low-frequency drivers, the speaker's radiation pattern can be made cardioid in the region where room acoustics might benefit. I had seen a cardioid subwoofer designed by Ken Kantor many years ago at a CES, and had wondered why no-one else had experimented along these lines.

Capital AudioFest 2011

Capital Audiofest 2011

John Atkinson | Jul 09, 2011 | 0 comments

The second Capital AudioFest, sponsored by Carnegie Acoustics, takes place this weekend at the Rockville, Maryland Crowne Plaza, pictured here in Friday evening's rainstorm. On show are 61 brands in 28 rooms and I will be reporting live—well, as live as possible considering that when I am in a room listening to a system, I am not blogging and vice versa—from the show.

Hours are 11am–7pm, Saturday July 9, and 11am–6pm, Sunday July 10. A raffle is being held at 6pm on both days, and every attendee receives a free sampler CD from M•A Recordings. There will also be a swapmeet on Sunday morning starting at 8am. Details can be found at http://www.capitalaudiofest.com/p1.html.

Capital AudioFest 2011

McIntosh: "...for the love of music..."

John Atkinson | Jul 09, 2011 | 1 comments

That's the title of the book Ken Kessler wrote about the iconic American high-end audio company, and which was reviewed in the May 2007 issue of Stereophile. Shown here in the second room hosted by retailer JS Audio, next to the McIntosh turntable, which I believe is the only product not made in the company's Binghamton, the book reinforces the idea that despite changing owners several times over the decades. McIntosh has not lost its institutional memory.

Capital AudioFest 2011

Polk's LSiM 707

John Atkinson | Jul 09, 2011 | 0 comments

Although I had seen the 4-way, floorstanding Polk LSiM 707 ($4000/pair) at the Montreal Show in April, they weren't being demmed in an optimal room. But driven at Capital AudioFest by an Audio Research stack—CD8 CD player, Ref3 preamplifier, and VS110 power amplifier—and hooked up with MIT cable, they gave great sound on Keb Mo's version of "It Hurts Me Too" from his The Door CD, with extended low frequencies and impressive dynamics.

Capital AudioFest 2011

Inside the Polk LSiM 707

John Atkinson | Jul 09, 2011 | 0 comments

You can see that each woofer is mounted in its own internal chamber, the ports firing down. And there's that horrible carpet again!

Capital AudioFest 2011

TapePath Revives Recorders

John Atkinson | Jul 09, 2011 | 0 comments

Ken Swauger runs a Baltimore-based company called TapePath (www.tapepath.com) that specializes in restoring classic open-reel tape recorders, especially ReVox A77s. Ken is shown here in the vestibule to the Polk room, holding a baggie with all the parts from an A77 that he replaces and upgrades. I still have an A77 in storage—perhaps I'll send it to Ken to have it brought back from the dead!

Capital AudioFest 2011

Analog Tape Porn

John Atkinson | Jul 09, 2011 | 1 comments

Some of Ken Swauger's open-reel recorder collection on display, from left to right: a ReVox PR99, a Stellavox portable, a ReVox A77, plus some tasty tape releases.

Capital AudioFest 2011

Border Patrol—Tube Porn #1

John Atkinson | Jul 09, 2011 | 0 comments

Driving a pair of Living Voice OBXRW speakers (from $11,000/pair depending on finish), this cute 20Wpc tube amp, from an American company run by an English ex-pat, produced a very appealing sound on a classic Louis Armstrong cut.The S20 comes with two mono power supplies, these using tube rectifiers and choke filters, and uses 300B tubes in push-pull. Price is quoted as being "from $12,750."

Capital AudioFest 2011

Synthesis—Tube Porn #2

John Atkinson | Jul 09, 2011 | 0 comments

There was no information available on this cute tube integrated from Italy, the Synthesis Flame, except that it has remote control and costs between $1500 and $3000. But it sure is pretty! Check out www.synthesis.co.it.

Capital AudioFest 2011

MBL Again (again and again)

John Atkinson | Jul 09, 2011 | 1 comments

It was déjà vu all over again all over again (and again).Capital AudioFest was the fourth Show I have attended this season, only to encounter MBL North America's Jeremy Bryan demming the same system he had at SSI in Montreal, at Axpona in Atlanta, and at Axpona in New York: 101E Mk.2 speakers driven by 9011 monoblock amplifiers, a 6010D preamp, a 1621A CD transport, and a 1611F D/A converter. But this time, not only was the hotel carpet different (and uglier), the room was large enough to allow the omnidirectional speakers to sing as they should. Again I listened to "The Boy in the Bubble" from Peter Gabriel's Scratch My Back CD, and the hi-rez solo piano recording made by MBL's Jürgen Reis, "Walchensee, Mondnacht," performed by Martin Vatter, from the album Klangbilder, played back from a server, and the highs were smooth and mellow without being rolled-off, just as they should be and are in real life, the imaging stable and accurately defined.

Capital AudioFest 2011

United Home Audio

John Atkinson | Jul 09, 2011 | 4 comments

As well as listening to hi-rez digital files on the MBL system, I auditioned 15ips open-reel tapes from the Tape Project on a much modified Tascam recorder from United Home Audio. UHA's Greg Beron (that's Greg's hand in the photo) replaces the heads with low-impedance ones sourced from the company that supplies Abbey Road Studios in London, wired with single-crystal cable and silk-dielectric caps. A UHA machine costs $8000–$17,000 depending on the level of work the customer needs, and the machine is lined-up to be compatible with Tape Project tapes. Listening to a Decca orchestral recording of Suite Espanole, I was reminded how good analog tape playback could be. Even a mono Thelonious Monk cut from 50 years ago sounded fresh.

Capital AudioFest 2011

Command—Manley—Joseph

John Atkinson | Jul 09, 2011 | 2 comments

As you can see from my photo, it was pretty dark in the room hosted by Command Performance A/V, so I couldn't see who was discussing the state of high-end audio in the US. It turned out to be Joseph Audio's Jeff Joseph, Manley Labs' Eveanna Manley, and The Signal Collection's Chris Sommovigo. I write about the migration of audio manufacturing overseas in my forthcoming "As We See it" in the September issue, and both Joseph and Manley are proud that they still manufacture their products in the US—"We're based on Chino, not China," said Eveanna, though she admits that this does add a premium to the retail price that is an unwelcome downside given, as I wrote about in the April issue's "As We See It," the reduced spending power of the middle class these days.

But if the premium is accompanied by performance, it can be justified, and the system in the darkened room was providing much music, courtesy of Pure Music running on Jeff's MacBook Pro. As it had two weeks ago at the NYC Axpona, the laptop was sending USB data to a Bel Canto LightLink converter, which in turn fed the audio data via a low-jitter ST optical link to the Bel Canto DAC3.5VB. This was connected to a Manley Jumbo Shrimp tubed line stage and a pair of Manley Snapper 100W tube monoblocks ($7250/pair) via Cardas Clear interconnects and speaker cables. Speakers were the Joseph Perspective ($11,800/pair), which marries two magnesium-cone woofers to a Sonatex-dome tweeter. AC power was provided by Shunyata's new Talos ($3500, and also made in the US), which replaces the company's well-regarded V-Ray unit.

Capital AudioFest 2011

Affordable Philharmonic Speakers

John Atkinson | Jul 09, 2011 | 1 comments

When I asked the price of the floorstanding Philharmonic 3 (front), which I had heard producing a big sound with extended low frequencies on a recording of Copland's Fanfare for the Common Man, driven by an AVA amplifier, I was expecting an answer of the usual "many thousands of dollars." Instead, I was told the speaker costs just $2800/pair!

That is a lot of speaker for the money. The 3 combines a Raal 10D ribbon tweeter crossing over at 2900Hz to a BG Neo 8 planar-magnetic driver in an open-back enclosure. The bottom enclosure, isolated from the upper with a 1/25" vibration-absorbing pad, handles frequencies below 650Hz and loads an 8" Scanspeak Revelator woofer with a transmission line. Less-expensive versions of the speaker, the Philharmonic 1 and 2, differ only in the drive-units used. Check out www.philharmonicaudio.com for the full technical story on these speakers.

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Capital AudioFest 2011

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