Audio Research SP9 preamplifier Letters 2/88

Audio Research SP9 preamplifier Letters 2/88

Following the introduction of their very expensive, tube/FET hybrid SP11 preamplifier, there were rumors that Audio Research was working on a hybrid tube/transistor preamplifier targeted to cost less than $2000. The rumors were confirmed when ARC showed a black-and-white photo of the SP9 at the 1987 Winter CES. Obviously, like all magazines, we were impatient to receive a review sample, but the first review of the SP9 actually appeared in the summer '87 issue of Peter Moncrieff's <I>IAR Hotline</I>. Peter's review was almost intemperately enthusiastic, comparing the SP9 positively with early samples of the SP11 and suggesting that its sound quality was considerably better than would be expected from its $1695 asking price. Naturally, we were anticipating good things when our review sample arrived in Santa Fe in late July.

Audio Research
3900 Annapolis Lane North
Plymouth, MN 55447-5447
(763) 577-9700
www.audioresearch.com

Audio Research SP9 preamplifier Manufacturer's Comment

Audio Research SP9 preamplifier Manufacturer's Comment

Following the introduction of their very expensive, tube/FET hybrid SP11 preamplifier, there were rumors that Audio Research was working on a hybrid tube/transistor preamplifier targeted to cost less than $2000. The rumors were confirmed when ARC showed a black-and-white photo of the SP9 at the 1987 Winter CES. Obviously, like all magazines, we were impatient to receive a review sample, but the first review of the SP9 actually appeared in the summer '87 issue of Peter Moncrieff's <I>IAR Hotline</I>. Peter's review was almost intemperately enthusiastic, comparing the SP9 positively with early samples of the SP11 and suggesting that its sound quality was considerably better than would be expected from its $1695 asking price. Naturally, we were anticipating good things when our review sample arrived in Santa Fe in late July.

Audio Research
3900 Annapolis Lane North
Plymouth, MN 55447-5447
(763) 577-9700
www.audioresearch.com

Audio Research SP9 preamplifier Blind Listening 11/87

Audio Research SP9 preamplifier Blind Listening 11/87

Following the introduction of their very expensive, tube/FET hybrid SP11 preamplifier, there were rumors that Audio Research was working on a hybrid tube/transistor preamplifier targeted to cost less than $2000. The rumors were confirmed when ARC showed a black-and-white photo of the SP9 at the 1987 Winter CES. Obviously, like all magazines, we were impatient to receive a review sample, but the first review of the SP9 actually appeared in the summer '87 issue of Peter Moncrieff's <I>IAR Hotline</I>. Peter's review was almost intemperately enthusiastic, comparing the SP9 positively with early samples of the SP11 and suggesting that its sound quality was considerably better than would be expected from its $1695 asking price. Naturally, we were anticipating good things when our review sample arrived in Santa Fe in late July.

Audio Research
3900 Annapolis Lane North
Plymouth, MN 55447-5447
(763) 577-9700
www.audioresearch.com

Audio Research SP9 preamplifier JA November 1987

Audio Research SP9 preamplifier JA November 1987

Following the introduction of their very expensive, tube/FET hybrid SP11 preamplifier, there were rumors that Audio Research was working on a hybrid tube/transistor preamplifier targeted to cost less than $2000. The rumors were confirmed when ARC showed a black-and-white photo of the SP9 at the 1987 Winter CES. Obviously, like all magazines, we were impatient to receive a review sample, but the first review of the SP9 actually appeared in the summer '87 issue of Peter Moncrieff's <I>IAR Hotline</I>. Peter's review was almost intemperately enthusiastic, comparing the SP9 positively with early samples of the SP11 and suggesting that its sound quality was considerably better than would be expected from its $1695 asking price. Naturally, we were anticipating good things when our review sample arrived in Santa Fe in late July.

Audio Research
3900 Annapolis Lane North
Plymouth, MN 55447-5447
(763) 577-9700
www.audioresearch.com

Audio Research SP9 preamplifier Page 2

Audio Research SP9 preamplifier Page 2

Following the introduction of their very expensive, tube/FET hybrid SP11 preamplifier, there were rumors that Audio Research was working on a hybrid tube/transistor preamplifier targeted to cost less than $2000. The rumors were confirmed when ARC showed a black-and-white photo of the SP9 at the 1987 Winter CES. Obviously, like all magazines, we were impatient to receive a review sample, but the first review of the SP9 actually appeared in the summer '87 issue of Peter Moncrieff's <I>IAR Hotline</I>. Peter's review was almost intemperately enthusiastic, comparing the SP9 positively with early samples of the SP11 and suggesting that its sound quality was considerably better than would be expected from its $1695 asking price. Naturally, we were anticipating good things when our review sample arrived in Santa Fe in late July.

Audio Research
3900 Annapolis Lane North
Plymouth, MN 55447-5447
(763) 577-9700
www.audioresearch.com

Audio Research SP9 preamplifier

Audio Research SP9 preamplifier

Following the introduction of their very expensive, tube/FET hybrid SP11 preamplifier, there were rumors that Audio Research was working on a hybrid tube/transistor preamplifier targeted to cost less than $2000. The rumors were confirmed when ARC showed a black-and-white photo of the SP9 at the 1987 Winter CES. Obviously, like all magazines, we were impatient to receive a review sample, but the first review of the SP9 actually appeared in the summer '87 issue of Peter Moncrieff's <I>IAR Hotline</I>. Peter's review was almost intemperately enthusiastic, comparing the SP9 positively with early samples of the SP11 and suggesting that its sound quality was considerably better than would be expected from its $1695 asking price. Naturally, we were anticipating good things when our review sample arrived in Santa Fe in late July.

Recordings of November 1995: 500 Pounds & Ride Like Hell

Recordings of November 1995: 500 Pounds & Ride Like Hell

<B>BIG SUGAR: <I>500 Pounds</I></B><BR> Silvertone 42160-2 (CD). Geordie Johnson, prod.; Peter Prilesnik, prod., eng. TT: 47:42<BR> <B>BIG SUGAR: <I>Ride Like Hell</I> EP</B><BR> Silvertone 42287-2 (CD). Geordie Johnson, Peter Prilesnik, Dan Gallagher, prods.; Alfie Annabelini, T. Murray, M. Peters, engs. TT: 20:50

MartinLogan CLS loudspeaker Specifications

MartinLogan CLS loudspeaker Specifications

The quest for a full-range electrostatic loudspeaker has occupied many engineers' minds for many years. The problems are manifold: large physical size (which can lead to room placement problems and poor dispersion), the difficulty of achieving high sound pressure levels, the need for a potentially sound-degrading step-up transformer, and the unsuitability for production-line manufacture. Even so, the potential rewards are so great that one can understand why loudspeaker designers keep on attempting the apparently impossible. Epoch-making models do appear at infrequent intervals, keeping the flame burning since the appearance of the original Quad in 1955: Acoustat, Sound Lab, and Beveridge in the US, Stax in Japan, Audiostatic in Holland, Quad, of course, in England, and now MartinLogan.

MartinLogan
2001 Delaware Street
Lawrence, KS 66046
(785)-749-0133
www.martinlogan.com

MartinLogan CLS loudspeaker 1987 Measurements

MartinLogan CLS loudspeaker 1987 Measurements

The quest for a full-range electrostatic loudspeaker has occupied many engineers' minds for many years. The problems are manifold: large physical size (which can lead to room placement problems and poor dispersion), the difficulty of achieving high sound pressure levels, the need for a potentially sound-degrading step-up transformer, and the unsuitability for production-line manufacture. Even so, the potential rewards are so great that one can understand why loudspeaker designers keep on attempting the apparently impossible. Epoch-making models do appear at infrequent intervals, keeping the flame burning since the appearance of the original Quad in 1955: Acoustat, Sound Lab, and Beveridge in the US, Stax in Japan, Audiostatic in Holland, Quad, of course, in England, and now MartinLogan.

MartinLogan
2001 Delaware Street
Lawrence, KS 66046
(785)-749-0133
www.martinlogan.com

MartinLogan CLS loudspeaker Jack English, CLS IIZ, June 1994

MartinLogan CLS loudspeaker Jack English, CLS IIZ, June 1994

The quest for a full-range electrostatic loudspeaker has occupied many engineers' minds for many years. The problems are manifold: large physical size (which can lead to room placement problems and poor dispersion), the difficulty of achieving high sound pressure levels, the need for a potentially sound-degrading step-up transformer, and the unsuitability for production-line manufacture. Even so, the potential rewards are so great that one can understand why loudspeaker designers keep on attempting the apparently impossible. Epoch-making models do appear at infrequent intervals, keeping the flame burning since the appearance of the original Quad in 1955: Acoustat, Sound Lab, and Beveridge in the US, Stax in Japan, Audiostatic in Holland, Quad, of course, in England, and now MartinLogan.

MartinLogan
2001 Delaware Street
Lawrence, KS 66046
(785)-749-0133
www.martinlogan.com
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