Is there any difference in using the Balanced input->Balanced Output vs. the Single ended input->Balanced output?

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Fayne
2025
Jan 2, 2020
Not only will the noise floor be higher when using single ended, but the overall signal strength that it is amplifying will be lower. Generally speaking, balanced connections are going to be rocking between 2x and 4x the voltage of single-ended, and this directly is reflected in the quality of sound produced by the balanced drive. Single-ended works, but frankly, sucks compared to what you get fully balanced. If possible, drive balanced amps with a balanced signal. It is what they're primarily designed for. Also when possible, use balanced headphones with a balanced amp. It is also what they're primarily designed for.
amiga505
17
Nov 6, 2020
I will venture to propose Loxjie P20 as a budget option for a balanced hybrid amp. Yesterday I replaced the stock tubes with GE JAN-5670W and replaced the stock power supply to slightly more powerful one as recommended here: https://forum.hifiguides.com/t/tube-rolling-on-the-loxjie-p20/2250/15 I consider myself a beginner, so do not have a great reference framework, but yesterday for the first time I was like 'WOW!' lots of joy! Cans are Drop Meze 99 with replacement pads from BrainWavz, hybrid ones to tune the base down a touch (although I think I am ready to try full velour, it's still slightly boomey for me), obviously connected via balanced cable. DAC is SMSL SU-8, streaming Tidal. Zeus in his review said that Loxjie is nothing special if run SE, but quite another thing when run balanced, and having listened to both setups I concur.
Fayne
2025
Nov 6, 2020
Agreed. The P20 is by far the best hybrid tube amp under $100 usd. I slapped a pair of 6n3p-dr in mine and found it pretty great for gaming. Very cold and analytical. The biggest problem is that cans under 45Ω tend to frequency shift. That said, I bought all my friends a P20 for xmass last year, and they all been rather happy.
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(Edited)
DrNima
15
Dec 18, 2019
The noise floor will be higher than balanced. To me noise floor sounds like the canvas the music is painted on. Very low noise floor and it's perfect black. Higher and you get muddyness for a canvas.