WiiM Amp with external DAC and amplification

[crash843]

After using this setup for a while, my wiim started rebooting every 30 min while playing. Customer support suggested it could be due to the fact that DAC doesn’t have external power supply.
@joostdh did you notice issue like this?

 

[vhrod]

@crash843 I have the same problem, everything was working perfectly with my Topping E50, until a while ago my Wiim Amp started to reboot. My DAC has a separate power supply. I can't find the problem with the reboots. Has anyone had this problem? Thanks

 

[crash843]

@vhrod Which firmware version is your device currently running?

 

[WWH]

I started using the WiiM Amp USB out for all my home office listening about six weeks ago.

In the home office (a small room with hardwood floors and a high ceiling) I use a Fosi Audio DS2 DAC connected with coaxial cables to an early 1990s Yamaha RX-385 receiver (45W per channel). The Fosi S2 sounds great and came out near the top of DACs tested on Audio Science Review.

The Yamaha Bass/Treble/Loudness controls are not used. All EQ is done with the WiiM.

I made the switch because:

The Yamaha has more power and I perceive the sound to be warmer.

I can use the Yamaha headphone jack with a wired connection to my Bowers & Wilkins Px7 S2e headphones. This provides a lossless listening experience when I need to use headphones.

The speakers are Polk S4 book-shelf speakers (8 ohm, 91 dB efficiency) from the same time period as the Yamaha. These were always well matched. My subwoofer supports direct wiring to the Yamaha speaker terminals.

In our family room I use a Yamaha RX-V581 home theatre receiver in Direct mode (2.1, no DSP). Fortunately the RX-V581 is an AirPlay 1 device which means lossless streams are supported over AirPlay. However, my WiiM amp does not support Airplay transmission, so I use iOS or iPadOS devices. Unfortunately I EQ with the Yamaha though I much prefer the WiiM EQ system.

 

[crash843]

@vhrod i upgraded to firwmare version 5.0.708757, and the reboots issue seems to be fixed.

 

[PeterT4684]

When I first heard of the WiiM Amp I knew it would be the best solution for our living room, with “our” being me and my family. I was not particularly happy with the Denon (stereo) receiver I had (DRA-800H) and I sold that to largely pay for the WiiM Amp.

Functionally the Amp is perfect for me. Used sources in order from most to least used are Spotify, streaming Radio, HDMI (arc), phono and AirPlay. Phono is pre-amped with the Cambridge Audio Duo and the TV is always fed from an AppleTV 4K. The auto switching is great and works well between all the sources except for the analog input but as I have to get up to turn on the CA and physically put the record on, it’s not a hassle.

I’ve take multiple stabs at room correction. I find it works quite well but the correction I use now - and like the best - is one derived from a housecurve app measurement which I manually tweaked.

If there was anything about the WiiM Amp I was still apprehensive about, it would be the amplification. It seems slightly underpowered for the Dali Oberon 7 speakers, not necessarily in volume but more in punch / dynamics. That’s why my interest was piqued when I heard about the Fosi V3 mono amps and I ordered two via the Kickstarter. I thought I was going to use them with the announced WiiM Ultra (as many others). Unfortunately the whole lack of AirPlay threw me off that plan. The Amp Pro could also have been a solution except for … well you know.

Fortunately WiiM is great in adding so many useful functions to their products, such as the USB out function. I purchased the Topping D10 Balanced DAC and since last weekend this is my setup: AppleTV/Phono/Streaming > WiiM Amp > Topping D10b > Fosi V3 Mono > Dali Oberon 7.

And all is now well If you got this far, thank you for reading.

View attachment 12514

View attachment 12513

Does PEQ work that way with the USB out to your dac and amp?

 

[Mr Ee]

Does PEQ work that way with the USB out to your dac and amp?

Yes.