mohler@druxu.UUCP (MohlerDS) (07/16/85)
A surprising number of replies came in to my previous posting in a very short time - Thankyou! The early results including some on-going listening tests show that there are some clear winners in the 600.00 to 1000.00 price range! The units in this price range do not really equal the preamps in the class of Spectral and Krell however, they are so good that the majority of listeners may not care about their subtle failings. In terms of the number of people that sent me mail saying good things about them and based on listening tests the clear winners (among those considered) in this price range were: 1.) Bryston 1B - 750.00 to 800.00 range 2.) Bryston .5B - 600.00 3.) Audio Research SP-7 - 900.00 The two Bryston preamps sound esentially identical and differ primarily in features. The sound of these units is very good, I personally believe that the Bryston's are more accurate, however the ARC's sound may appeal to you since it is more exciting to listen to. This list does not contain any Tube units for two reason's : 1.) In this price range tube unit's construction, design and therefore their reliability is highly suspect. 2.) In this (if not in every) price range there is no reason to tollerate the constantly changing performance (tube degradation, bias changes) and the higher noise and distortion. In addition, the only respectable tube units come in at a higher price point. Before those on the net that like tube units flame away (please don't bother) I do have many good components to use as a reference and I base my comments on having had ARC, Conrad-Johnson, and Precision Fidelity units in my system. I have developed an unalterable solid state bias! Yes I can hear the good imaging, detailed highs and tremendous depth the best tube units offer, I just know I don't have to live with tube short comings to get those listening characteristics. The Bryston and ARC preamps all share very good construction (the Bryston is better though), good design, nice features, solid company backing and most importantly, great sound. After talking to John Russell (Bryston) and Bill Johnson (Audio Research) I have some recommendations for those that need high gain phono sections for MC cartridges: The Bryston works well with the Bryston transformer, the Cotter or Verion transformer, the ortofon T-30 transformer and the Technics SH-305MC transformer. The ARC seems to work better with one of the very good Headamps available. I realize that the addition of the transformer or headamp will add to the price, but the Bryston .5B with the Technics SH-305MC will eat up any competition in the under 1000.00 price range and quite a few in higher price ranges (like the cheaper Levinson units, and both perreaux (sp ?) units to name a couple. The much lauded PS Audio model 4 with the high- current option wasn't even real close! The units considered as competition to the three units recommended above are preamps from the following companies: Amber, APT, lower tube models from Audio Research, Bedini, Carver, the lower priced units from C-J, Hafler, lower Levinson models, Perreaux, Precision Fidelity, Quad, RGR, Tandberg, Yamaha A partial listing of some of the reference equipment follows: Turntables: Linn, Micro-Seiki, SOTA Arms: Alphason, Fidelity Research, Linn, Micro-Seiki Cartridges: ADC, Denon, Dynavector, Fidelity Research, Janis, Linn, Shinon, Shure Headamps/Transformers: Cotter, Denon, Fidelity Research, Marcoff, PS, Ortofon, Powerlight, Premier, Vandersteen CD players: Magnavox, Kyocera, Revox Amplifiers: Amber, Audio Research, Bryston, Hafler, Krell, Quad Speakers: Apogee, Audiostatic, KEF, Quad, Snell, Vandersteen This comparison has been going on for two years. The following notes may help the reader in terms of methodology: level matching and load matching, good cables, two good and one marginal room, blind and aware testing were employed. Four listeners did the judging and recently submitted comments were added to the results posted. Any specific questions regarding the results can be sent to me at druxu! mohler or drune!mohler. Thanks again to those that submitted input to this subject. I plan on publishing the results of the 1000.00-1400.00 range comparison in the next couple of weeks. Any units that were suggested to late for this posting will be included in the 1000.00-1400.00 dollar test which will use the Bryston and ARC units as a starting point. David S. Mohler AT&T -ISL @ Denver drune!mohler I am living proof that there are still rabid audiophiles at large!