If it is not too late/you still care, I used the Tungsram 6922 in both my PH-3 and LS-15. For me it opened the soundstage, and dramtically extended the base vs the stock Sovtek 6922's
Audio Research PH3 service, upgrades
A friend has a stock audio research ph3 phono preamplifier. It has not been powered on in a few years. My tech advised against powering it up prior to replacing some of the capacitors. The unit is super basic inside; I am interested in knowing of PH3 owners that have upgraded their units and/or simply serviced them in general. What brand e88cc/6922 tubes sound best, what capacitors, resistors, etc?
thanks in advance for any information
thanks in advance for any information