Guest Posted August 8, 2002 Report Share Posted August 8, 2002 Dear all,Anyone knows about Dynaco Stereo 400, Is it suitable with AR3a.I had a pair of AR3a's and I am looking for the suitable amplifier with them.If you know about Dynaco Stereo 400 amplifier when driving AR3a, please let me know. I am appreciate your help.Thank in advance,Chinh. Link to comment Share on other sites More sharing options...
Guest Nigel Posted August 9, 2002 Report Share Posted August 9, 2002 I do not know about Dynacos. Adcom 545, 545 II, 5400, 555, 555 II or 5500 are all fine amps for AR3a speakers.Nigel Link to comment Share on other sites More sharing options...
ar_pro Posted August 11, 2002 Report Share Posted August 11, 2002 There's a Dyna 400 currently on Ebay with output meters: http://cgi.ebay.com/ws/eBayISAPI.dll?ViewI...item=1372354399 Link to comment Share on other sites More sharing options...
Guest Posted August 11, 2002 Report Share Posted August 11, 2002 It would be a GREAT combination. I've wanted a 400 for years but either there were none to be found or no money in my pocket. Link to comment Share on other sites More sharing options...
ar_pro Posted August 11, 2002 Report Share Posted August 11, 2002 The Dynaco 400 was a very popular match for the AR3a (along with the Crown DC300). It was one of the first amplifiers that could provide an adequate amount of clean power and a well-controlled low-end. Link to comment Share on other sites More sharing options...
ToastedAlmond Posted August 12, 2002 Report Share Posted August 12, 2002 I agree wholeheartedly. That amp would show those woofs JUST who's in charge. Great combo. The power capability of the 400 might exceed the recommended max, but it's clean power and I don't think it's a concern. Not for me at least. Toasted Almond Link to comment Share on other sites More sharing options...
tysontom Posted August 12, 2002 Report Share Posted August 12, 2002 I had a Stereo 400 that I used with AR-3as, and it worked fine. It had plenty of power, and was always effortless. I also used it briefly with a pair of AR-LSTs, however, and the output transitors eventually became overtaxed (fan notwithstanding) and the unit died, "big time." After repair, I didn't trust it, and soon sold it. The AR-3a's fairly low impedance and low sensitivity were really not too much of a problem for the Stereo 400; however, the AR-LST's combination of capacitive-reactance load, low sensitivity, low impedance coupled with the tendancy to be played much louder than 3as was a blueprint for failure for all but the most robust electronic devices. I did use a Crown DC-300B with good success, and then later a MacIntosh Mc2200. Both of these could be made to clip into the LST, also, but they never failed. Those amps also worked extremely well with the AR-3as, too.One note: when I went to 200 or more watts-per-channel on the AR-3as, I always fused them with the Buss FNM 1-1/4-amp slow-blow fuses. The LST came with FNM 2s, and I blew a many of them. My listening room was quite large, and I began to realize that I was listening at unrealistically high levels sometimes, and this brought me to reduce the gain. The idea was to create the illusion of the musical listening hall, not bring the musicians into the home! Today, these speakers should definitely be fused about 1/4-amp lower, as I am sure they cannot handle the power today that they could when new.--Tom Tyson Link to comment Share on other sites More sharing options...
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