Quote:
Originally Posted by oldominion
Hey, I sent Dennis an email a few weeks ago but haven't heard back. Proud owner of Inspire preamp and Firebottle amp. I'm going to give them one more try with my Altec 604's, with which they don't play too well, before I sell the Altecs. Would love tube recs for both pre and power amp but mostly pre. I have some KT150 for the Firebottle amp on the way; have cycled thru all of the other tube recs with no real improvement in woofer control.
Have a pair of red base RCA 5692 in the preamp now, which did in fact increase bass...but they also are very microphonic so the increase in bass came at a cost.
Any 6sn7 variants that anyone could recommend that would increase bass? Or any suggestions overall? Many thanks in advance.
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You can only go so far with increasing bass with tube rolling. Then it's time for a subwoofer.
Have you Altecs been refreshed? Before selling them you should talk to Great Plains Audio. They are the Altec gurus.