Fosi ZA3 opamp bypass

[Ixnay]

I've always been a tubular guy but that Fosi ZA3 falls into an "interesting experiment" bag. Unfortunately, there are apparently opamps in the signal path, which is something that I would prefer to avoid. I suppose that they would be necessary to get the input resistance that they want, but maybe that's something I wouldn't worry about so much.

I wonder what would happen if I jumpered the socket pins input to output on the ic's. I'd probably lose gain, I'd probably lose input resistance, but so what? I never play it very loud.

I expect sniffling hysteria in the responses, as usual.

 

[RayDunzl]

There's only one way to find out for sure...

 

[Ixnay]

'Tis true.

Not a real good time for splooging on toys. I just bought a house that I can't afford. But maybe some day I'll go nuts and give it a whirl.

 

[wwenze]

It doesn't even cost anything to bypass...

 

[MaxwellsEq]

I've always been a tubular guy but that Fosi ZA3 falls into an "interesting experiment" bag. Unfortunately, there are apparently opamps in the signal path, which is something that I would prefer to avoid. I suppose that they would be necessary to get the input resistance that they want, but maybe that's something I wouldn't worry about so much.

I wonder what would happen if I jumpered the socket pins input to output on the ic's. I'd probably lose gain, I'd probably lose input resistance, but so what? I never play it very loud.

I expect sniffling hysteria in the responses, as usual.

It's not possible to know without experimenting. To avoid the cost, you could model the ZA3 in spice with and without the op-amp to see what you get. My instinct is that it bypassing the op-amp will stop the device from working.

 

[Billy Budapest]

Unfortunately, there are apparently opamps in the signal path, which is something that I would prefer to avoid.

For what reason?