WiiM Amp

Steve Woodhouse said:
This is purely a guess, but…

The microphone, room measurement, and design for either manual or automatic correction will be done in your phone. Remember just how powerful your phone is.

Once it’s decided on a solution, if it’s automatic, it’ll tell the WiiM what to do. The WiiM just has to apply eq, delay, etc. Do as it’s told.

Given that they’re talking about bringing room correction to all WiiM streamers, including the £80 Mini which was designed and made way before anyone started discussion the possibility of room correction, then surely this has to be the case.

I just can’t see a WiiM Mini having the processing power required to ‘do an audyssey’, but I’m happy to be corrected if I’m wrong.

I’m not sure if this is relevant, but the figures I’ve seen online suggest a Denon AVR-X3600H can process 1 billion operations per second. An iPhone 15Pro can process 35 trillion.

We’ve seen it in so many other areas - why buy what is effectively a new, expensive mini computer for each new household device, when you hold one in the palm of your hand already.
Click to expand...
Agree completely with this. That's how the Sonos system works (and it worked very well at sorting out my Arc and Sub integration plus other room issues).
 
Based in Melbourne, Australia, just received my amp for a few days. Probably one of the first batch for down under lol!

Thankfully, my Wiim amp (PCB_Version: 5) is free from any of the HDMI ARC issues or noise related issue so far. Perhaps being a lesser prirority market for Wiim have some benefits for new products!

For those interested, here are my thoughts (Inc. screenshot of EQ pairing with KEF Q350 speakers) : KEF Q350 + Yamaha WXA-50 v KEF Q350 + Wiim Amp on Audio Science Review forum under KEF Q350 thread.
Click to expand...

Key point to emphasize which I mentioned in my post on KEF Q350 ASR thread is that I submitted a feature request to Wiim Amp for full range frequencies output under "Subwoofer" instead of the being forced to set something for the "cross-over" slider. The reason is stated in my ASR post for those wanted to know why.
 
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soulfresh said:
Key point to emphasize which I mentioned in my post on KEF Q350 ASR thread is that I submitted a feature request to Wiim Amp for full range frequencies output under "Subwoofer" instead of the being forced to set something for the "cross-over" slider. The reason is stated in my ASR post for those wanted to know why.
Click to expand...
Ideally it should be possible to set a low pass filter frequency or full range for the sub out and independently set a high-pass filter or full range for the speaker outputs.
And EQ in the sub out would be mega too.
 
I've received my Wiim amp a few days ago. The issue with the humming is there, but it's really quiet, nothing like somebody said that it's audible across the room. In reality, you can only hear it when you are very near the device, and even then, the noise is pretty quiet. My unit sits in a cabinet with glass doors, so the noise is basically eliminated. Since it's been corrected in later batches, are the first units with the noise somewhat worse technically? I mean, what negatives does that noise bring, apart from noise lol?

Another interesting fact is that you can enable subwoofer connection even if you're not connected to the sub via sub out, and you can adjust the crossover. My thought is that if you then connect a sub using high-level inputs, this could be a very useful feature to cut any bass from the speakers. But I'm wondering if the crossover setting also affects the subwoofer connected via high level somehow?
 

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s0nix said:
I've received my Wiim amp a few days ago. The issue with the humming is there, but it's really quiet, nothing like somebody said that it's audible across the room. In reality, you can only hear it when you are very near the device, and even then, the noise is pretty quiet. My unit sits in a cabinet with glass doors, so the noise is basically eliminated. Since it's been corrected in later batches, are the first units with the noise somewhat worse technically? I mean, what negatives does that noise bring, apart from noise lol?

Another interesting fact is that you can enable subwoofer connection even if you're not connected to the sub via sub out, and you can adjust the crossover. My thought is that if you then connect a sub using high-level inputs, this could be a very useful feature to cut any bass from the speakers. But I'm wondering if the crossover setting also affects the subwoofer connected via high level somehow?
Click to expand...
My amp makes a very faint pulsing noise when you put your ear close to it. I can’t be bothered to change it because I can’t hear it when I’m about a meter away.

As to the sub settings. I don’t have a sub, but I have turned the sub option on so that I can set a 35Hz high-pass for the speaker output.

I think what you’re asking is whether the sub pre-out is low-pass filtered (at the frequency set in the app) or if it is full range?

I think it would be great to have separate high-pass and low-pass sliders. That way you would be able to fine tune the acoustic summation in-room with far more precision.
 
Popondreu said:
Thank you very much for the photo!
The assembly does not look very high quality, everything is filled with compound.
Click to expand...
The assembly looks quite excellent. Everything is heatsinked with adequate thermal pads to transfer heat to the metal case. All ribbon cables are protected. Connectors, shock sensitive, tall, and noisy components are all set with what appears to be good quality white RTV silicone and not the awful UL electronic yellow glue and thus should last a long time.
 
xsdmx said:
The assembly looks quite excellent. Everything is heatsinked with adequate thermal pads to transfer heat to the metal case. All ribbon cables are protected. Connectors, shock sensitive, tall, and noisy components are all set with what appears to be good quality white RTV silicone and not the awful UL electronic yellow glue and thus should last a long time.
Click to expand...
Thanks! Interesting, we can change opamps in this amplifier?
 
Hi,

I'm new on this forum. I have been following the news, updates, enthousiasm, and also "complaints" (about "humming" noise / coilewine) and thought it was time to finally buy my own amp hoping this problem is fixed (I'm from Holland, sorry for my English).

So I've got my amp today. Ordered from Amazon.nl (tink the same depot as Amazon.de, enough stock). The amp is fine/great. Setup was easy, there was a firmware update at the startup. No coilewine/humming noise. Hdmi also works fine (Hisense tv).

The amp is build is 2024/01/04 (accoring to the app).

So far, great amp, happy having it!
 
minnetjibbe said:
Hi,

I'm new on this forum. I have been following the news, updates, enthousiasm, and also "complaints" (about "humming" noise / coilewine) and thought it was time to finally buy my own amp hoping this problem is fixed (I'm from Holland, sorry for my English).

So I've got my amp today. Ordered from Amazon.nl (tink the same depot as Amazon.de, enough stock). The amp is fine/great. Setup was easy, there was a firmware update at the startup. No coilewine/humming noise. Hdmi also works fine (Hisense tv).

The amp is build is 2024/01/04 (accoring to the app).

So far, great amp, happy having it!
Click to expand...
If you turn on the auto-sense for the optical input it also enables it for the HDMI input. Very useful feature, but not obvious that it exists.
 
Does USB support by connecting a usb hub for multiple devices such as flash drive, hard drive and dac?
 
s0nix said:
I've received my Wiim amp a few days ago. The issue with the humming is there, but it's really quiet, nothing like somebody said that it's audible across the room. In reality, you can only hear it when you are very near the device, and even then, the noise is pretty quiet. My unit sits in a cabinet with glass doors, so the noise is basically eliminated. Since it's been corrected in later batches, are the first units with the noise somewhat worse technically? I mean, what negatives does that noise bring, apart from noise lol?

Another interesting fact is that you can enable subwoofer connection even if you're not connected to the sub via sub out, and you can adjust the crossover. My thought is that if you then connect a sub using high-level inputs, this could be a very useful feature to cut any bass from the speakers. But I'm wondering if the crossover setting also affects the subwoofer connected via high level somehow?
Click to expand...
As far as I have understood and as other users have reported, the sub-out gets a low-pass filter at the selected frequency and the main speakers get a high-pass filter at this frequency, if you enable sub-out.

It makes sense to relieve the main speakers from low bass output if you use a subwoofer.
 
Yoku-San said:
As far as I have understood and as other users have reported, the sub-out gets a low-pass filter at the selected frequency and the main speakers get a high-pass filter at this frequency, if you enable sub-out.

It makes sense to relieve the main speakers from low bass output if you use a subwoofer.
Click to expand...
Agree on the last point. But it doesn’t make sense to lock in a low pass for the sub-out at the same frequency and the speaker-out high pass. Some people may prefer to send a full range signal to their sub and use its built in low pass filter. People may be able to better integrate their sub if the high and low pass filter frequencies can be set differently.
 
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