I performed some basic measurements on the combination of the Lingo-driven Sondek with the Ekos and a Linn Troika cartridge in my 1990 review, which are reproduced in the Web reprint. In particular, I felt the low frequencies were reproduced with considerably better extension and definition. My reaction to the external Lingo supply, comparing it back in late 1990 with the older Valhalla board, was very positive. Robert Deutsch also commented on the improvement wrought by the Cirkus base in May 1997 (Vol.17 No.5).
The effect of the Lingo power supply was first described by me in January 1991 (Vol.14 No.1), with a Follow-Up by Wes Phillips as part of his report on the Naim ARO tonearm and Armageddon LP12 power supply in February 1996 (Vol.19 No.2). In its various incarnations, the Sondek LP12 turntable has been reviewed a number of times in Stereophile: first by Larry Greenhill in February 1984 (Vol.7 No.2), then by Martin Colloms in March 1990 (Vol.13 No.3), then by Corey Greenberg in December 1991 (Vol.16 No.12). Some commentators have reported problems with increasing bearing friction over the long term, but the sample I bought 14 years ago still appears to be okay in this respect. I reviewed the Ekos tonearm very favorably in April 1989 (Vol.12 No.4). The overload margin at 20Hz was 20.3dB, which is good, but this dropped to 16.8dB at 1kHz and 16.3dB at 20kHz, both figures only adequate. The voltage gain at 1kHz was 62dB, and the RIAA error showed a very slight (0.25dB) downtilt from 100Hz to 20kHz, which might be audible. 500µV input at 1kHz), and an unweighted, wideband ratio of 66.5dB, which is still excellent. 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. Other than the new Akiva cartridge, all the Linn Products products reviewed by Mikey this month have been reviewed before in Stereophile.
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