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In Reply to: RE: My new (used) Topping E30 posted by zacster on August 07, 2020 at 14:51:39
It just occurred to me that my battery has 2 USB ports for power, so instead of taking power from the RPi I can take power from the battery for the E30. It resulted in a slightly darker background, but it could also be that I'm listening for that.
I'm going to do another change unrelated to the E30 now too. I'm going to swap in 6N6P USSR tubes for 6DJ8. I've used these before in my amp but I took them out 4-5 months ago when I was trying to change the power tubes from 6B4G to 300B, but that just didn't work. It would have stressed the filament windings to use both 6N6P and 300B. As it is I'm pushing it.
Follow Ups:
If you're 'Putzing around with Tweaking', the main thing you need to do is get a Model 4, where a 'Black' background won't be imagined. It's common knowledge that the Model 3 had problems with outputting from the USB port.This is the reason that Allo came up with a 'USB Bridge' for the Model 3 at the price of $239 ! -- From their website:
"USBridge Sig was build using RPI compute module so from a software point of view, this will give you access to the latest kernels (way ahead of any competitor). The focus of the device is to lower the noise on USB bus. We chose an excellent USB hub IC (TI) and a separated Ethernet to USB Ic (Axis).
To lower the noise of the USB, we had to lower noise on EACH rail. In total, USBridge Sig uses more than 30 LDOs. Even the SD card power rail has a dedicated LDO. There are zero switching elements on board."
Edits: 08/11/20 08/11/20 08/11/20
I hear what you are saying, but I'm first trying what I have. In time I'll get a 4. Changing the tubes in my amp had much more of an impact than anything I've done with my DACs. It is an immediate and obvious change when I swapped the tubes. The whole voicing of the system was changed, and I actually changed it back after playing a few songs. With the E30 in the mix the presentation is so coherent, and the tube change took that away.
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