Other than the new Akiva cartridge, all the Linn Products products reviewed by Mikey this month have been reviewed before in Stereophile. Wes Phillips favorably reviewed the Linto phono preamplifier in June 1998 (Vol.21 No.6), and my measurements accompanying that review revealed that it was extremely quiet, even in its high-gain mode, with an A-weighted signal/noise ratio of 85.3dB (ref. 500µV input at 1kHz), and an unweighted, wideband ratio of 66.5dB, which is still excellent. The voltage gain at 1kHz was 62dB, and the RIAA error showed a very slight (0.25dB)…
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As regular Stereophile readers know, I rely heavily on vinyl for listening and reviewing. So, like untold millions of similar-minded music lovers, I anxiously await each new issue of Stereophile. When it arrives, I suspend normal life while I pore over the latest installment of Michael Fremer's "Analog Corner" column, voraciously absorbing all the hot news and descriptions of the latest and greatest. As anyone who actually knows me will attest, I'm not fabulously wealthy, so I pay particular attention when MF raves about…
Description: Phono preamplifier with outboard power supply. Inputs & outputs: 1 each, unbalanced (RCA). Input impedance user-adjustable via loading plugs: 50, 100, 220, 500 ohms, 47k ohms supplied; others available or easily fabricated. RIAA equalization accuracy: 18Hz–22kHz, ±0.2dB. Distortion (THD+noise): 0.01%. Gain: 40dB MM, 69dB MC (dealer adjustable).
Dimensions: Each chassis: 4" (107mm) W by 2.5" (62mm) H by 6.5" (165mm) D. Weight: 7.7 lbs (3.5kg) net, 8.8 lbs (4kg) shipping.
Serial numbers of units reviewed: PS.20: 07.01.010201.21. MSU.20: 08.…
Following his auditioning of the Whest PhonoStage.20 + MSU.20 (serial numbers 07.01.010201.21 and 08.01.0201.21, respectively), BD sent me the units to measure. The PhonoStage proved relatively immune to grounding issues between it and my test equipment. The 1kHz voltage gain in moving-magnet (MM) mode measured 40.9dB; switching to moving-coil (MC) mode increased the gain to 64.3dB. The MM mode was noninverting; the MC mode inverted absolute polarity. The input impedance in MM mode appeared to be much higher than the specified 47k ohms, although it's possible that…
Those combos always seem to produce exciting and, to my ears, musically honest sound from familiar demo discs…
Remote Oddities
Say you're listening to a CD and the phone rings.…
Description: MOSFET-powered integrated amplifier. Power output: 220Wpc RMS into 8 ohms, 300Wpc RMS into 4 ohms. Frequency responses: preamplifier, 2.5Hz-200kHz, -3dB; power amplifier, 0.8Hz-46kHz, -1dB, into 8 ohms. THD (x1 gain): 10Hz, <-91dB; 1kHz <-93dB; 10kHz <-90dB; 20kHz <-87dB. Power amplifier gain: 30dB. Preamplifier S/N: 93dB, all inputs. Input impedance: 47k ohms unbalanced, 94k ohms balanced. Input sensitivity (for full output): not specified. Power consumption: not specified.
Dimensions: 16.4" (420mm) W by 5.9" (152mm) H by 13.8" (355mm…
Analog source: Simon Yorke turntable; Graham 2.0, Immedia RPM, Tri-Planar Mk.VI tonearms; Lyra Helikon, Helikon mono, Clearaudio Insider cartridges.
Digital source: Marantz SA-1 SACD player.
Preamplification: Hovland HP-100 preamplifier, Audio Research Reference phono section.
Power amplifier: Musical Fidelity Nu-Vista 300.
Loudspeakers: Sonus Faber Amati Homage.
Cables: Phono: Hovland Music Groove DIN/RCA, XLO Signature 3.1. Interconnect: Harmonic Technology Pro-Silway II, Magic. Speaker: Harmonic Technology Woofer. AC: JPS Labs, Electra…
My usual practice before measuring an amplifier is to run it at one-third power into 8 ohms for one hour. This severely stresses a design with a class-B output stage, as it results in the maximum heat being dissipated in the output transistors. However, I cut short the preconditioning with the Chord CPM 3300 after 30 minutes. This was partly because the rear heatsinks were far too hot to touch (footnote 1), as was the black mesh grille on the top, but also because the measured distortion had risen slowly and steadily throughout that time, reaching 0.53% from a cold…