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Description: Class-AB1 stereo tubed integrated amplifier. Tube complement: two 6922 (input buffer/preamp), two 6SN7 (pre-driver/phase inverter), four KT150 (output operated in push-pull Ultralinear mode). Inputs: 4 pairs single-ended (RCA). Outputs: 1 pair line-level subwoofer (RCA), 2 pairs five-way speaker binding posts, ¼" headphone jack. Power output: 100Wpc into 8 ohms (20dBW). Maximum gain: 34dB. Frequency response: 19Hz–23kHz, ±0.5dB. Input impedance: 100k ohms. Sensitivity: 450mV RMS.
Dimensions: 17.25" (440mm) W by 7.8" (200mm) H by 16" (405mm) D.…
Analog Sources: Dr. Feickert Analogue Blackbird turntable with Jelco KT-850L tonearm, AMG Giro G9 turntable & 9W Turbo tonearm, Linn Sondek LP12 Hercules turntable with SME M2-9 tonearm; AMG Teatro, EMT TSD 75, Etsuro Urushi Cobalt Blue, Hana SL, Koetsu Rosewood Standard & Signature Platinum, My Sonic Lab Ultra Eminent Ex cartridges.
Digital Sources: Mac mini computer running Audirvana+ 3.2; JVC X-Z1010 CD player (transport only); HoloAudio Spring "Kitsuné Tuned Edition" Level 3, Mytek Brooklyn, Schiit Audio Yggdrasil Analog 2 DACs.
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I measured the Cary SLI-100 amplifier using my Audio Precision SYS2722 system (see the January 2008 "As We See It"). Before doing so, I installed all the tubes, following the guide in the excellent manual, and checked the bias current for the KT150 output tubes. Each channel measured close to the recommended 75mA. I ran a 1kHz tone through the amplifier at 1Wpc into 8 ohms, then rechecked the bias before starting the testing. I checked the bias currents several times while performing the measurements, but neither channel had drifted by more than a few milliamps. I…
This relatively affordable, high-sensitivity, two-way floorstanding loudspeaker has been a firm favorite with Stereophile's writers since Sam Tellig reviewed it in January 2014. Herb Reichert wrote Follow-Ups in December 2015 and July 2016, as did Art Dudley in May 2018. Ken Micallef also uses a pair of O/93s, and the DeVore was a finalist in our 2016 and 2018 Loudspeaker of the Year categories. (The Orangutan O/93 costs $8400/pair; DeVore Fidelity's larger Orangutan O/96, which costs $12,000/pair, was one of our Joint Loudspeakers of…
A more discursive version of this list, with descriptions and an audio track from each album, appears here in Slate (my editors indulge me now and then…
Works by Heggie, Strauss, Debussy, Gruber, Lekeu
Joyce DiDonato, mezzo-soprano; Brentano String Quartet
Erato 573802 (24/96, CD). 2018. Jeremy Hayes, prod.; Steve Portnoi, balance, mastering. DDD. TT: 77:38
Performance ****½
Sonics ****½
On the 2017 Winter Solstice, the astounding Joyce DiDonato—the coloratura mezzo-soprano from Kansas who zips through impossible runs of Rossinian roulades faster than anyone can shuck corn—took a break from opera to present a song recital in London's famed Wigmore Hall. With Jake Heggie and Gene Scheer's…
As Larry and I discussed on that 13-hour drive from Nevada to New Mexico, we began publishing every month…
Editor: I was led astray by my BorderPatrol DAC. Making stacks of old CDs sound musical was irresistible. I even installed an old Mullard EZ80 in the DAC to increase my pleasure. After reading John Atkinson's measurements of the BorderPatrol in the September issue (pp.75–80), my belief that a DAC should be making these CDs sound good wavered. I don't understand his measurements and charts, but they must be more valid than what I hear with my tired old ears.
Then came Jon Iverson's Follow-Up review of the BorderPatrol DAC in November (p.141).…