Hi, I have this circuit part with MCP607 (see attached file) which has limit of only 2 kHz bandwidth at gain of 101. Or only Gain Bandwidth Product of less than 200 kHz. What would happen if I'd use an existing preamp (the only preamp I owned), that is the E1DA Cosmos APU with gain of 34 (50X gain) to replace it. I'd want the bandwidth to be at least in the audio range. With the MCP607, I need to go a low gain of 10 just to have 10kHz bandwidth. So It's ok if the APU gain is 50X only, at least I get up to 20kHz. I just need better bandwidth and I can't change the MCP607 circuit parts because it is very small 0603.