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IM Publications LLP, 2012. ú50.00 ($75.00). Hardcover, 359 pp. Available from www.apairofwharfedales.com, www.musicdirect.com.
This business biography of hi-fi pioneer Gilbert Briggs and his company, Wharfedale, is an exhaustively researched labor of love on the part of his grand-nephew David Briggs. In a sense, the book is a prequel to Ken Kessler's KEF: 50 Years of Innovation in Sound (2011). That's because KEF's founder, Raymond Cooke, worked for Gilbert Briggs at Wharfedale from the early 1950s…
It's strange, though, because I can't recall a time when I actually used it. The…
Thus, I tried being a professional musician. For, I love music and playing it. I tried really hard, hair and everything. After spending each waking hour post Stereophile rehearsing in New Jersey or gigging in the…
In truth, it wasn't the fault of fate or even God, but of my own doing: Having reviewed the Lamm ML2.1 monophonic amplifier ($29,290/pair) in Stereophile's October 2004 issue, and having been so impressed that I bought the review pair and kept them as my reference for a couple of years, I felt compelled to hear that amplifier's successor. My opportunity came with the…
Third, you must be willing and able to repeat those checks and adjustments, precisely…
Description: Tubed monoblock power amplifier. Tube complement: two 6C33C, two 6N6P, one 6AK5, one 5651, one 12AX7. Output power: 18W into 4, 8, or 16 ohms at 0.7% THD (9.55, 12.55, 15.55dBW, respectively). Frequency response: 20Hz–20kHz at 18Wpc, –0.3dB. Input impedance: 41k ohms. Input sensitivity: 0.85V. Slew rate (48V peak–peak): 15V/µs. Signal/noise ratio, ref. 4V RMS into 16 ohms: typically 90dB A-weighted.
Dimensions: 16" (445mm) W by 8.25" (210mm) H by 20.375" (520mm) D. Weight: 81 lbs (36.8kg).
Serial numbers of units reviewed: B10253, B10254.…
Analog Sources: Garrard 301, Thorens TD 124 turntables; EMT 997, Artemis Lab TA-1 tonearms; Ortofon SPU, EMT TSD 15 70th Anniversary pickup heads; Miyabi 47 cartridge.
Digital Sources: AudioQuest DragonFly USB DAC; Apple iMac G5 computer running Apple iTunes v.11.0, Decibel v.1.0.2 playback softwares; Sony SCD-777ES SACD/CD player.
Preamplification: Auditorium 23 Standard (SPU version), Silvercore One-to-Ten, Hommage T2 step-up transformers; Shindo Masseto preamplifier.
Power Amplifiers: Shindo Corton-Charlemagne, Shindo Haut-Brion, Fi 421A.…
To measure one of the Lamm ML2.2 amplifiers (serial no.B10254), I used Stereophile's loan sample of the top-of-the-line Audio Precision SYS2722 system (see www.ap.com and the January 2008 "As We See It"). Before performing any measurements, I ran the amplifier with a 1kHz tone at 1W into 8 ohms for an hour, then turned off the signal generator and adjusted the output-stage plate voltage and current, following the detailed instructions in the manual and using the recommended Fluke 87 meter. Lamm recommends that the wall voltage be 120V for this procedure;…