WiiM Amp

Brantome said:
Quote: "The subwoofer output on the back of the WiiM AMP has seen Linkplay’s app developers add a bass management pane to the WiiM Home app. From there, we choose the subwoofer’s crossover frequency but also gain and phase (the latter two features are yet to be found in BluOS). And yes, Linkplay’s underlying DSP also high-pass filters the loudspeaker outputs to take the low bass burden away from a 2-way loudspeaker’s mid-bass driver. None of this is in the press release though — I had to ask WiiM about it directly.
Also not in the press release is another very clever piece of wizardry (if it comes off): the aforementioned bass management pane will show up in the WiiM Home app for WiiM Pro and Pro Plus users. Connect either streamer’s pre-amplifier outputs to an adapter and then to the subwoofer, sync its streaming zone with the WiiM AMP and presto: wireless subwoofer integration"

He's wrong about it being an AKM based DAC though, it's an ESS9018.

@Smartplug - guess that answers your query re high pass filters :)
Click to expand...
You have the wiim amp, does it show the high pass filter on wiim app? Can you please take a picture of the wiim app?
 
Does the WiiM Amp -- like Pro and Pro Plus -- support LMS (squeezelite) streaming protocol? Thanks.
 
Smartplug said:
You have the wiim amp, does it show the high pass filter on wiim app? Can you please take a picture of the wiim app?
Click to expand...
Hi, there’s nothing that I see that explicitly says high pass filter, just crossover frequency as per this screenshot. Does that not mean (and what Darko implies) that it passes frequencies lower than that to the sub, while at the same time not passing higher frequencies to the speakers I.e. acting as a high pass filter too? Or am I misunderstanding the function?
 

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I'm thinking to try the WiiM Amp, before substitute a 40years old Nad pre+Amp couple with an expensive Audiolab 9000a+mini dsp Flex.
I'll go with Nad preamp tape monitor bus for analog input selections, apart phono, the preamp hasn't even to be powered on and then connect it to audio in of WiiM Amp in order to keep all analog sources available.
I'll can manage sub and speakers filters and do manually by PEQ, some room acoustic corrections, in a Dirac like way.
Will WiiM Amp perform better than in quite perfect shape oldies?
 
Last edited:
merifon said:
Am I wrong or with HPF on, the Amp became inverting, above crossover frequency? Phase go from around zero when unfiltered, to around +/-180° with HPF.
I'll have to take it in account for sub settings.
Click to expand...
And this is for base phase set to 0° for the sub out.
 
onlyoneme said:
And this is for base phase set to 0° for the sub out.
Click to expand...
It will be interesting, to check if phase of enabled sub out, remains 0° or follows the inversion of HPF out.
Or: what they mean for 0° on subwoofer phase switch, absolute or relative to HPF output?
 
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