Tad 1000's quiet?

Bought the 1000s on here and after a lengthy delay seller said he had no issues with amp. Bought the 150 from my uncle in Cali that he used. He did some mods to it. I hate to get him involved because he will want me to send it back so he can tweek it and quite honestly I'm not up for it unless all else fails... Amp have (4)KT 88's..(1) el-34.. (1)WY1...(1)12Ax7 and (1) 6E2 per side

One or two el34's?

1 per channel 2 total

Ever locate the user manuel for the 150?

The TAD 150 Signature's phono stage is made for high output cartridges. The OP's Lyra Clavis puts out a low 0.25mV.

I also wonder how you couldn't notice the totally tipped up treble and rolled off bass (i.e., completely unlistenable tonal balance) when connecting your turntable directly to the TAD monoblocks without benefit of RIAA equalization.

Based on your last post, you need to talk to the previous owner, your uncle. It's hard enough for us to ferret out the specs and characteristics of the discontinued standard model. Since it's a modified one-off, we have no idea what it does or doesn't do.