Will driving single-ended signal to diff help THAT1200

[snake3276120]

Hi guys,

I have a DIY amp which utilizes THAT1200 as the receiver. THAT1200 is a differential receiver but it's capable of receiving a single-ended signal by clipping the XLR cold into shield/gnd using a psuedo differential cable (RCA to XLR).

I wonder if I should built a single ended to differential driver. It seems to me that driving single ended output from DAC into a differential signal only adding more noise (from this pre-amp) and +6dB of whatever noise is coming out of the DAC (Topping DX3 Pro), given the gain of the differential driver is 6dB.

Any help with scientific proof is appreciated, thanks a lot.

 

[JohnYang1997]

Hi guys,

I have a DIY amp which utilizes THAT1200 as the receiver. THAT1200 is a differential receiver but it's capable of receiving a single-ended signal by clipping the XLR cold into shield/gnd using a psuedo differential cable (RCA to XLR).

I wonder if I should built a single ended to differential driver. It seems to me that driving single ended output from DAC into a differential signal only adding more noise (from this pre-amp) and +6dB of whatever noise is coming out of the DAC (Topping DX3 Pro), given the gain of the differential driver is 6dB.

Any help with scientific proof is appreciated, thanks a lot.

I think that will make it worse. The derived differential signal won't be perfect. Also it will very dependant to the grounding and power supply of your converter. Directly making it pseudo balanced is probably be better.

 

[March Audio]

Just make sure the xlr screen is connected to cold at the far source end and you will be good to go. This makes the ground noise currents flow in the screen not the signal wire. You will still retain most of the benefit of the balanced input.

Like this

 

[snake3276120]

Thanks guys, guess I'll just keep feeding the amp with single ended signals