Hello fellow members. As many of you know I am a fan of the vintage AR speakers. Let it just be said I have a number of sets to choose from in the various 2, 3, 4 and 5 models. My particular favorites are the AR5's.
Over the years I have seen cut sheets for all these models and when looking at amp power ratings 100 watts per channel is generally cited as the max power recommended. Over the past few years I have also been on a quest for some vintage amps and am a bit nervous about a few of them. First off I have acquired a Marantz 2230, 2270 and 2325. All have now been gone through by very qualified techs (2230 Pat Font and 2270/2325 Randy Buckner) and am trying different combinations to evaluate the synergy between the various models. I also have a completely McShaned HK Citation II that I got from Don Sachs. I am actually using that with the 2230 as pre and driving a refurbed set of 4x and the result is sublime. I have been using the 2270 to drive a stacked set of 5's on top of a set of 2ax and have been quite happy with the result. I just got back the 2325 from Randy and this 125 watt per channel beast on paper would have too much power, I think. When he tested it he got 140 per before clipping, yikes. Before sending this out to Randy it cooked a pair of KLH 5s which I had gone through. They sounded quite good at moderate volumes but if jacked up over 12 o'clock the speakers would "snap" on heavy bass notes. One day my wife was listening and had opened the windows to hear the music while she worked in the garden. When I got home the speakers were buzzing and haven't been heard from since.
The question is will the 2325 have too much power and is there anything (in line fuse?) I can do to safeguard the speakers? I have also recently gotten two Dynakit ST70 amps which I hope to work on this Winter. I am not too worried about their power being too much, much like the Citation II.
Then there is the two (yeah two) Nakamichi PA7 units I fell into earlier this year. I could not pass them up once I did a bit of research on them. The price was right and the one owner (who I know to be a reasonable sort) history was too much to pass up. I am likely sending these to Randy for his magic and a refresh but on all counts would be the same concern I have about the 2325, just too much power for these models. I have seen a spreadsheet someone created that has specs all on one sheet but can't find it anywhere now, Robert you must have it yes? Please post or send if you do.
And I do ask myself "My God! What have I done?"
thoughts, ideas, whatever. Obviously I need help, maybe a support group if you know of one.