Indeed time.. The bass on the 5i should be anything but light. One of the best attributes of the 5i was its bass. As a former owner, I found the combination of Seimens 7308 gold Pins in the 6( 3 per side) gain stage tubes and the AC shunt 6922(outer L & R tubes) with Amperex 6922PQ. Finally, for the Power supply gain 5881's. The absolute best was(by no small margin either) Tung Sol 5881 NOS. If you can find them by all means get them. They will absolutly kill the stock Sovteks and make the sound so smooth. In fact it was like a different pre amp with them! I also used JAN Philips 6L6 in them and they were better than stock, but not the Tung Sols. Much easier to find though.
The down side of all these upgrades is definately the price tag. New 6922 Sovteks will be better than what you are now hearing anyway. Good luck!-Ken
The down side of all these upgrades is definately the price tag. New 6922 Sovteks will be better than what you are now hearing anyway. Good luck!-Ken