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Because the review sample of the Ayre D-1x didn't have a video output, I couldn't access the analytic signals on the Chesky test DAD (CHDVD171) to examine its behavior with 96kHz-sampled data. However, as the sample's primary role was as a CD player, I don't feel this to be a problem.

Like other machines based on DVD transports, the Ayre offered excellent error correction, coping with gaps in the data of up to 1.25mm in length without audible glitches. The maximum output at 1kHz was 3.04V RMS from the balanced XLRs, and half that from the unbalanced jacks…

Description: Full-function, transformer-input, moving-coil preamplifier with remote control for volume, mute, and balance. Inputs: four pairs of RCA unbalanced inputs plus one (optional) phono input, two pairs of balanced female XLR inputs. Outputs: two pairs single-ended on RCA jacks, one pair balanced on XLR jacks, tape output on RCA jacks. Phono section specifications: frequency response: 5Hz–30kHz ±0.5dB. THD: <0.005%, 20Hz-20kHz, at full output. S/N ratio: approximately equivalent to 1k ohm metal-film resistor (thermal noise >85dB below 600µV input,…

Because first impressions can be misleading, I believe that audio equipment should be auditioned over a long period of time: the Bryston BP-25MC preamplifier was used in my listening system for nine months before I began writing this review. The BP-25MC was compared with the discontinued Mark Levinson ML-7A and its moving-magnet L2 phono option (set for 44dB gain and 50k ohms input impedance), with a Duntech/Audio Standards MX-10 head amp for my system's low-output Spectral moving-coil cartridge. Analog interconnects included AudioQuest LiveWire Topaz…

Unless otherwise noted, the measurements presented are for unbalanced operation. The output impedance of the BP-25 at its line output measured 50 ohms (99 ohms, balanced), with insignificant variations with changes in the level control. The line-level input impedance measured 48k ohms (16.6k ohms, balanced), left, and 49.5k ohms, right, again virtually independent of the level control. Phono input impedance measured 50k ohms (MM) and 220 ohms (MC). The output impedance at the tape output was just 99 ohms regardless of source impedance, indicating full buffering…

I don't recall whether or not every setup included the same cartridge, but in any case, every hour, the hosts would play the same recorded selection on each 'table so listeners could try to hear what each was capable…

Sound
The Premier 15…

Description: Vacuum-tube phono preamplifier with switchable subsonic filter. Tube complement: six 12AX7s, two 6GK5s. Voltage gain: 53dB. Input sensitivity: not specified. RIAA accuracy: within 0.25dB. Hum and noise: -85dB ref. 10mV input. Distortion: not specified. Input impedance: switchable between 47k ohms, 9.6k ohms, 1.9k ohms, 500 ohms, and 200 ohms. Output impedance: ±200 ohms. Rated output capability: 10V.
Dimensions: 19" W by 3.75" H by 15" D. Weight: 22 lbs.
Serial number of unit reviewed: 0501042.
Price: $3995. Approximate number of dealers:…

Analog source: Simon Yorke, Kuzma Stabi S turntables; Graham 2.0, Immedia RPM2, Rega RB600 tonearms; Crown Jewel SE, EMT TU, Lyra Parnassus D.C.t, Transfiguration Temper, Grado Statement cartridges.
Preamplifier: Ayre K-1 remote.
Power amplifiers: Conrad-Johnson Premier 12, Ayre V-1, KR Enterprise VT 8000.
Loudspeakers: Audio Physic Virgo, Sonus Faber Amati Homage, Audio Physic Rhea subwoofer.
Cables: Hovland phono cable (on Graham arm). Interconnects: Yamamura Millennium 6000, Cardas Neutral Reference and Golden Reference, Electra-Glide.…