A decent preamp for Altec 604 speakers

I have identical Altecs. I tried a few SS (vintage) amps with them and found them all fatiguing and shrill in the topend and settled on tubes (McIntosh MC40's). Now, I can and do listen for hours without fatigue. From my search, I don't know that I have found anyone that uses SS amplification with 604's. Most owners use low wattage SET and seem very pleased.

Sorry I couldn't be of more help. You might want to post your question on the AudioAsylum HiEff forum. Several longterm 604 owners over there who could be helpful. Or the http://alteclansingunofficial.nlenet.net/index.html

Good luck and I love your speakers!!

I use the Altec 604-8K, much the same as the -8G but with the Tangerine phase plug, revised crossovers and Manta Ray horn. In my main system, I use the Tannoy System 15 DMT II, not quite as sensitive as the Altec, but still over 95 dB

I use a Meitner PA6i preamp, upgraded by John Wright (www.museatex.com). My second choice has been the Bryston BP-25 with the MPS-1 power supply or BP-26 with the MPS-2 power supply.

When you can find them, the PA6 and PA6i go for anywhere from $400 to 600 ($2350 retail in 1990). John Wright charges $500 for the "Plus" upgrade. An astonishingly good preamp, tonally rich yet very detailed; also astonishing bass. Even better when you use it with the Meitner STR-55 or MTR-101 power amps, but excellent with any quality power amp.

Hope this helps.

Regards,

Joel.

I've owned Altec 604B's and 604c's along with Model 19's, Tannoys and Khorns. Although I'm the North American distributor for Eastern Electric, I can honestly say the MiniMax preamp played well with all these high efficiency speakers.
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