Photograph: Larry GreenhillTheta Digital, the pioneer of digital separates, announces the mighty Prometheus monoblocks ($12,000/pair). Heard in pre-production mode, with bass so strong and tight that it sent me into the hallway to discuss the product, the 200Wpc into 8 ohms monoblock is due out "within 90 days" (to quote a mantra oft-repeated at CES 2013).
According to the company's designer, Dave Reich, the Prometheus is based on a European-sourced module, which is mated to Theta's own power supply, software, and hardware control. "Timing between switching on and off is crucial…
Many, many moons ago, in the days when Stereophile was a small digest rather than a full-sized magazine and lively website, I owned an Aragon 4004 dual-monoblock amplifier. Oh how I wish I had never sold my 4004, with circuitry designed by Dan d'Agostino, and instead mated it with a front end, speakers, and cabling that could have revealed all that it had to offer.
You, thankfully, have an opportunity to find out just how good the circuitry is. The just-introduced Aragon 8008, a software-upgradable, 200Wpc dual monoblock amplifier ($4999) with dual, symmetrical power supply and ethernet-…
Importer Charles Harrison had arranged four distinct systems in an air-walled ballroom at THE Show. The room's boundaries were so porous that I was able to hear the sounds of a competing Mahler symphony playing so loudly in an adjacent room that I thought they were coming from one of the four systems in the room I was in. The system I was actually trying to listen to featured the new Ayon Audio Triton III integrated stereo amplifier ($12,500), which can output 125Wpc of pure class A power, as well as Ayon's Ortho II XS flagship preamplifier. Witht eh room
S sub-optimal acoustics, the chain…
On January 10, the third day of CES, Michael Lavorgna, Jon Iverson, Stephen Mejias and I flocked to the Flamingo, home of the T.H.E. Show. There I made a first acquaintance with Coda Technologies, a company based 90 or so minutes from me in Sacramento, California. All Coda products are designed, manufactured, and assembled in the good ole USA, and come with a 10 year warranty, transferrable for 5 years.
In a large downstairs conference area whose air-walls did many systems' low ends no favors, I the new Coda 07X preamplifier ($6500) and Coda 15.0 amplifier ($10,000) used Morrow Audio…
Photograph: Larry Greenhill
Not yet released is Ayre’s 175Wpc VX-5 amplifier (price TBD, in the $8000 "neighborhood"), which uses the same circuit as in the AX-5, but with a larger power supply and higher voltage rails. The VX-5 was demmed with Vivid G2Giya speakers and the K-5xeMP preamplifier that John Atkinson reviewed in June 2011.
Photograph: Larry Greenhill Photograph: Larry Greenhill
Opening the top of Ayre's new AX-5 integrated amplifier ($9950) revealed an impressive layout, with transformers so big that they extend down through the bottom of the chassis. Rated at 125Wpc into 8 ohms, or 250 into 4, the AX-5 uses the same volume control as in the KX-R, and a diamond buffer circuit in the output stage. The amp, driving TAD CR-1 stand-mounted monitors, sounded eminently smooth on a track by Ella Fitzgerald, and did a fine job communicating the smile in her voice.
A close-up of the AX-5’s mechanically linked, high-precision… We recently reviewed Dayton’s overachieving B652 loudspeaker ($39.80/pair), the least expensive loudspeaker ever to be covered in our pages. Dayton Audio also offers a line of amplifiers, made specifically to partner well with their drive units and complete speakers.
Atop the MA1240a 12-zone multichannel amplifier ($495), we (just barely) see the small and surprisingly robust 50Wpc DTA-100a ($89) and 15Wpc DTA-1 ($44.80)—a pair of class-T Tripath amplifiers. Meanwhile, in the background is Dayton Audio’s APA150, which is rated to deliver 150 watts in bridged-mono mode and costs…
I ran into Dan D'Agostino, in the hallway of the Venetian. He was hurrying off to a meeting, but had a moment to mention that his amplifiers were being used in live exhibits in several rooms, including YG and Light Harmonic DaVinci, among others. I asked if there was anything new at the show, and he smiled and mentioned the new Momentum preamplifier. I found the D'Agostino room and his partner Petra, showed me the preamplifier, which was on passive display.
The Momentum preamplifier ($32,000 in silver, $34,000 in black) incorporates much of the technology Dan developed for the Momentum…
When I visited Nagra's exhibit at the Venetian, Jean Paschal Panchard, Nagra's representative, was out for a meeting. I asked his colleague, Jorgen Olofsson of Marten loudspeakers (the $77,000/pair Marten Coltrane Tenors were being driven by Nagra electronics), what was the "newest" Nagra product being shown. He mentioned Nagra's new Melody high-end solid-state preamplifier. Like the all-tube Jazz preamplifier, the Melody features the traditional Nagra look with the modulometer on the front face to indicate output signal level. The Melody weighs 7 lbs, and has a rated bandwidth of 10Hz–50kHz…
Perfect8 Techologies' exhibit suite at the Venetian proved to be one of the most crowded I entered. Perfect's CEO, Jonas Rantila, was introducing his new floorstanding speaker, the Point Mark II Evolution ($115,000/pair). This three-way, speaker features an Air-Motion Transformer tweeter and two midrange drivers mounted on a glass baffle (there's no enclosure for the tweeter or midrange drivers), sitting on a single glass-enclosure housing a pair of 10" subwoofers powered by a 400W, DSP-controlled amplifier hidden within the enclosure. Power for the midrange and tweeter was supplied by a 165…
