Oops... yes, without the NFB TubSuMo would go crazy - more than 90db of voltage gain.
My melted test speaker can attest to this.
Note to self; always, always, always check the NFB. That cost me a lot of time.
Now having the Tubsumo working I was able to hook both up to my A/B system. These are closer than the others were. The Tubsumo still has slightly more high end and maybe just slightly more detailed. I got a chance to listed a bit longer than yesterday. I hope I didn't give anyone the wrong idea. This amp sounds lovely. Full bodied and smooth. I have to install this one in case. Way too much trouble to set up for casual listening and I really want something different to compliment my A/B amp stack.
Blessings, Terry
Now having the Tubsumo working I was able to hook both up to my A/B system. These are closer than the others were. The Tubsumo still has slightly more high end and maybe just slightly more detailed. I got a chance to listed a bit longer than yesterday. I hope I didn't give anyone the wrong idea. This amp sounds lovely. Full bodied and smooth. I have to install this one in case. Way too much trouble to set up for casual listening and I really want something different to compliment my A/B amp stack.
Blessings, Terry
You need to assemble that protection board for you test bench. It would have just shut it down.Note to self; always, always, always check the NFB. That cost me a lot of time.
Now having the Tubsumo working I was able to hook both up to my A/B system. These are closer than the others were. The Tubsumo still has slightly more high end and maybe just slightly more detailed. I got a chance to listed a bit longer than yesterday. I hope I didn't give anyone the wrong idea. This amp sounds lovely. Full bodied and smooth. I have to install this one in case. Way too much trouble to set up for casual listening and I really want something different to compliment my A/B amp stack.
Blessings, Terry
My future plans were to use the hexfet OPS with the Low TIM Hybrid.
Also a good combination combination.
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