Quote:Posted by: Buckaroo Posted on: Today at 04:58:13
Well, that's part of my problem. I don't really know what ratio I need. Bob kind of brushed over that when I talked to him but pointed me to the devise that has a 1:10 and a 1:20.
Here's the math: A 10:1 SUT is 20 dB of gain, 20:1 is 26 dB. ZP3 is 42 dB and your cartridge output is 0.4 mV.
So with a 20:1 SUT you get 10^((26+42)/20) * 0.4 = 1 Volt output. A 10:1 will give you 0.5 Volt.
It looks like you are using a ZRock as a preamp, and I'm not sure how much gain you can get from it, but IMO you are better off with a 20:1 SUT regardless.