Theorem II D/A converter: Frequency response: 20Hz–20kHz ±0.5dB. THD: <0.004% at 2V output. Signal/noise ratio: !w100dB. Channel separation: >80dB. Induced jitter: <80ps. Conversion system: 18-bit hybrid DAC. Digital filter: 8x-oversampling. Analog section: discrete, DC-coupled. Inputs: TosLink optical, RCA coaxial, clock (RCA).
Dimensions: 19" W by 2.75" H by 11" D. Weight: 20 lb.
Serial number of unit reviewed: 1000956.
Price: $899 (a version with true balanced outputs costs $1099) (1995); no longer available (2019).
Axiom CD transport with remote control: Digital output: one coaxial on RCA jack, one AES/EBU on XLR jack. Clock output: RCA jack. Output impedance: 75 ohms (coaxial), 110 ohms (AES/EBU). Output level: 1V p–p (coaxial), 2V p–p (AES/EBU). Clock output: 384x-oversampling, crystal-controlled.
Dimensions: 19" W by 3.5" H by 12" D. Weight: 16 lb.
Serial number of unit reviewed: 3581200.
Price: $899 (1995); no longer available (2019).
Common to both: Approximate number of dealers: 55.
Manufacturer: Sumo Products Group, Agoura Hills, CA 91301 (1995); company no longer in existence (2019).
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COMMENTS
As was done recently with orig. 1987 PS Audio DAC, Stereophile should re-review the gear if possible. Ask for loaners on FB or the forums as needed.
New product developers and customers need some sort of "reference metric". E.g., how much has digital technology improved ... subjectively and objectively (measurements).
For more than two decades, you have been able to rip once, play many, and do so with more precision and accuracy and consistency than with any real time CDP.
Playback using physical media is archaic, regardless if CD, LP or 8-track tape cassettes.
... start with this unit:
https://www.stereophile.com/content/sony-cdp-x779es-cd-player
The measured performance was outstanding and JGH said he'd buy one.
Bryston BCD-3 ($3,500) measurements are comparable to the Sony CDP-X779 ES :-) ........
Maranz CD 5005 ($400) and CD 6006 ($500) could offer similar excellent measurements as the Sony and Bryston CD players :-) .........
Stereophile could review the Denon DCD-600NE ($300) CD player :-) .........
Adjusted for inflation the Sony CDP-X779 ES would cost approximately $4,000 in 2019 :-) ........
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