The TAD modded Cayin ta-30 stopped me from serious looking about four years ago I guess. Before that I had used many SS amps with varying satisfaction. I feed some custom Dynaudio monitors with it.
I liked the ta-30 so much I then bought (found it on ebay) the same company's (different name) Spark 300B SET. Model 730D. I finally settled on a great tube set TJ 300b, Phillips jan 6sn7 and Valvo 188cc. This amp is gorgeously finished and quite a thing of beauty.
Fed with vinyl and sacd it really breathes life into the old Altec 604D speakers. The bass is augmented on two levels with a pair of subs. One sub is cutoff at 80hz and the other is cutoff at several hundred hz, the subs are balanced by a seperate preamp for more control than I've ever had over the bottom end of the system. Very dynamic and lifelike, tho' not the highest resolution from the old Altecs.
I'm very happy with it, and have not felt any inclination to change amps in a while, tho I often consider finding a pair of high efficiency speakers of new design to try in place of the Altec.
