Effect Ohms Have on db and Speaker Sensitivity

Thank you for all the feedback.

Thanks to Almarg for the math lesson.

Maybe I should have started by stating my issue:

I have speakers with 97db efficiency into nominal 6 Ohms. I'm running a pair of 300B mono amps......about 8 watts. 

I thought that 97db speakers at 6 Ohms would be efficient enough for the 300B's to really "sing,"  however, they lack the bass depth and slam that we all enjoy.

I may need a bit more power, or a speaker that is 97db into 8+ Ohms.

8 Ohm taps only.....unfortunately.

Hello Almarg,

I wanted to get back to you after I tried a couple things.

While it did not solve 100% of the issue, I did get 60% of the desired result by lowering the noise floor with an Entreq Silver Minimus Ground Box + an Eartha cable.

I am able to now turn up the volume about 1 to 1.5 clicks, drive the speakers a bit better, without sacrificing clarity.

Not cheap, but a nice tweak.

Labpro