WiiM Amp Ultra Streaming Amplifier Review

[antcollinet]

electricitiotomist

Great word

I put one pokey in the hole, the other on the rim. Also I put one of the Klein's stabbys in the port and the other on the outside edge.

Text book engineering description - I applaud you.

 

[LesterHiggins]

Ground loops are not a component issue - they are a system issue. Related to the grounding in every device in the system, how they are interconnected - including how they are connected to the mains supply AND the house wiring itself.

No one component has a ground loop.

LOL I almost got really annoyed and then checked to see what I actually said, and I never even used the words "ground loop," and was confused for a minute until I realized you weren't replying to me at all. I need to change my notification settings.

 

[antcollinet]

LOL I almost got really annoyed and then checked to see what I actually said, and I never even used the words "ground loop," and was confused for a minute until I realized you weren't replying to me at all. I need to change my notification settings.

LOL except it wasn't my post you replied to first time.

 

[martin900]

Hmph, I have an issue with my bedroom setup...I can't get enough volume when using the WiiM with my tiny JBL 4312M (89dB) and Roon.
Have no limits set, gain is too low.

 

[gasolin75]

Can't be true

Adjust pre gain-audio input + max volume if you use bluetooth

 

[ScottySmallsMom]

Still hoping Wiim actually cares about improving the high latency. They are pretty enthusiastic about continuous software updates ... so why not make this better?

 

[gasolin75]

Latency ?

 

[martin900]

Can't be true

Adjust pre gain-audio input + max volume if you use bluetooth

Yeah found it...the WiiM app lets you select max volume. Mine was at 60% so even though Roon volume is 0-100 it becomes 0-60% for the amp, apparently.

 

[ScottySmallsMom]

@gasoline75 this thing has a fixed, completely un-bypassable 50-100ms processing latency for some reason. Not ideal in regard to lip-sync and gaming.

 

[gasolin75]

Shouldn't be a problem at all, 4 ohm speaker and 89db + almost 2x200 watt in 4 ohm

Even 2x50 watt would make them loud

 

[gasolin75]

@gasoline75 this thing has a fixed, completely un-bypassable 50-100ms processing latency for some reason. Not ideal in regard to lip-sync and gaming.

Try audio Input-Group Audio Delay if the device is used as a master not slave

 

[harkpabst]

Yeah found it...the WiiM app lets you select max volume. Mine was at 60% so even though Roon volume is 0-100 it becomes 0-60% for the amp, apparently.

And that's a pretty useful feature. It allows for absolute safety margins and also to safely avoid inter sample clipping with badly mastered program material.

 

[gasolin75]

wim amp,stream (the app) has some many features you hardly never think of from other amps

 

[seewhatididther]

Any hesitation about this amp power ascend acoustics Luna V2 with their 82db sensitivity?

 

[kyuu]

Any hesitation about this amp power ascend acoustics Luna V2 with their 82db sensitivity?

Depends entirely on your listening habits and setup. For example, at 9 feet away with two speakers (and not taking any room reinforcement into account) you should get peak levels of about 99dB. Assuming 20dB headroom for peaks, that's good for an average listening level of 79dB.

 

[Mnyb]

And that's a pretty useful feature. It allows for absolute safety margins and also to safely avoid inter sample clipping with badly mastered program material.

.. and if your EQ or room fit has positive gain somewhere , lower the max volume to avoid clipping

 

[seewhatididther]

Depends entirely on your listening habits and setup. For example, at 9 feet away with two speakers (and not taking any room reinforcement into account) you should get peak levels of about 99dB. Assuming 20dB headroom for peaks, that's good for an average listening level of 79dB.

Thanks. I went on a a db calculating and meaning mission. Looks like I’m only listening at 60 db currently. So it should be no sweat.

 

[Ajaxlegends]

I just ran Roomfit on my Macbook with the Dayton IMM6C from 45hz to 400hz. Can it damage my speakers if it does +8.5db at around 200HZ and +4DB at 60hz?

 

[qirex]

@gasoline75 this thing has a fixed, completely un-bypassable 50-100ms processing latency for some reason. Not ideal in regard to lip-sync and gaming.

I'm very sensitive to lip sync issues and I don't notice on mine. That said, when I was feeding it Dolby audio something in my chain (probably the TV) wasn't handling it right and I did get dropouts and sometimes visible delay. Using PCM fixed the issue. That said I don't think it's much worse than most AVRs. I don't have real measurements but using the highly scientific "record a youtube video in slowmo with my phone" technique it looks like around 50ms, it's visibly well under 100.

 

[harkpabst]

I just ran Roomfit on my Macbook with the Dayton IMM6C from 45hz to 400hz. Can it damage my speakers if it does +8.5db at around 200HZ and +4DB at 60hz?

It's not so much about your speakers being at danger due to such peaks directly, but:
a) this can introduce digital clipping
b) compensating for dips is usually not useful at all

Are you using the iOS version of the WiiM Home App on your MacBook? Is this version up to date?

I strongly recommend to enable the non-boost mode in the RoomFit settings and to use the multiple microphone method.