Wiim Sub Pro

[john61ct]

This is a brand new product release, what you are asking for will take time, if at all possible.

Stereo is pointless for true sub frequencies which are non directional, but for bass augmentation purposes, above ~80Hz or so, I agree would be useful.

However Wiim's target audience likely

Pretty sure any wireless connection does introduce timing delay...

 

[Ropeburn]

Does a dual Stereo sub setup work here.
The 10 band eq is stereo, but there isn’t 2 sub rca outs on any Wiim box model. Just one rca sub out on a few models.
Perhaps it being wireless will allow dual stereo subs setup with a firmware update.
And not have any unnecessary delayed response.
It needs to get reviewed, and updated.

Perhaps you could use the "regular" line output instead? I admit I'm not an expert for Wiim products and their behaviour in detail, but the line output is volume controlled, right, just like a preamp output?

If that is so, that's your stereo subwoofer output right there. Usable with any active subwoofers that got their own lowpass. Which is, I dunno, 95% of the market.

 

[john61ct]

Yes all outputs on Wiim Ultra are pre-amp, affected by volume controls PEQ bass management / Loudness

However you would need a separate unit driving just the stereo subs, it can only output audio to one of the primary output interfaces at a time

the mono sub out is the only concurrent one.

Of course if you don't need HP filter on fullrange pair, you could just Wye splitter off the main output IF your subs did the bass management, LP filter if needed etc

 

[Flippo63]

For about same price you can get the speedwoofer 10s mk2 which also has wireless

 

[kyuu]

For about same price you can get the speedwoofer 10s mk2 which also has wireless

Wiim Sub Pro is significantly smaller. Integration with the Wiim ecosystem and feature set is also quite appealing. The wireless is a bit different between the Wiim sub and the RSL. For the Wiim you are connecting it to your network's wifi. With the RSL it's a separate wireless connection (and you have to buy the transmitter separately).

 

[Pritaudio]

Maybe compares to a Sonos sub.

 

[Burnside]

We need a shortcut term for "Bone Rattling fUll-size TruE Sub"

 

[john61ct]

I like it, let's make it happen

BRuTeS vs "bass augmentators"

 

[Mike_Trueman]

I would buy 2.

 

[GXAlan]

Stereo is pointless for true sub frequencies which are non directional, but for bass augmentation purposes, above ~80Hz or so, I agree would be useful.

Agree about the non directional bass, but it is important to remember the impact of harmonics and that threshold.

A lot of claims about huge amounts of distortion being ignored at bass levels misses out on some real world experiences.

I agree with the concept that if you are sitting and listening to bass with a lot of harmonic distortion, it’s not that noxious. This get to all of the published literature.

However, a simple experiment is to sit in your listening position and then turn around. You haven’t moved from the bass position meaningfully. At low SPLs or with premium subwoofers that have low distortion, you cannot really tell where the sub is coming from.

At higher SPLs where distortion enters the picture, or with digitally added distortion, you indeed can tolerate a very high percentage of distortion. However you start to localize the sub a bit and it sounds different. It’s the harmonic frequencies escaping the omnidirectional bass range.

Last, there seems to be no replacement for displacement when it comes to subs. However displacement reflects cabinet size.

Still, this is one of the best 8” subs for filling in below 40 Hz when you just don’t have any options cosmetically for a larger sub.

G

'Earthquake Sound CP8 User Measurements'

Mar 22, 2025

Earthquake Sound CP8 Subwoofer Review and In-Room Measurements

This is a brief review and some measurements of the Earthquake Sound CP8 "Couch Potato." This is a $250 subwoofer from Amazon that seems to perform far above its price point. While it's NOT the ideal subwoofer for cinema, it may be a great subwoofer for music for extended the frequency response of small bookshelf speakers at 76-86 dB. I thought about sending one to @amirm for measurement, but couldn't justify the shipping costs -- and you'll see why I didn't want to risk going dual subs...

• GXAlan
• Replies: 1
• Forum: Speaker Reviews, Measurements and Discussion

• 

 

[Yorkshire Mouth]

...there seems to be no replacement for displacement when it comes to subs.

True...except a smaller room size needs less displacement.

It's like a pair of IEMs. How on earth can such tiny drivers get down to 20Hz? Because they don't need to displace a lot of air.

 

[john61ct]

BRuTeS vs "bass augmentators"

So, this product cannot satisfy the former use case for anyone.

And for my needs in the latter application, I need the low end infill crosdover right up to 100Hz or likely even higher (never mind below 40Hz)

Therefore I want stereo subs.

Therefore this product is not a good fit, FOR ME.

QED

but thanks for pointing out the Earthquake Sound CP8 looks like good value

 

[jpbas1]

Ordered and arriving tomorrow for a 2.1 system in a loft area.

 

[Thelo80]

Ordered and arriving tomorrow for a 2.1 system in a loft area.

Do you like it?

 

[dlaloum]

Absolutely spot on, do not even think of these as subwoofers. They really cannot be in any meaningful sense. I have two nice Sonos subs in my Sonos system, but I knew that they were as a member several posts back noted going to be bass augmentators, not subs.

Prior to moving to all Sonos (years later a move I'm still happy with) I had two very bass competent tower speakers supported by two decently integrated SVS SB 2000 pro subs, so I knew the difference.

These small, lifestyle subs are not really subs and once we accept that and embrace where their operational limits really are, we'll be happier.

Would be nice to get a trend going where we could have clear terminology seperating the devices that do the lower end of the audible spectrum, vis the devices that do infrasonics/subsonics.... But in long term audio usage, going back to at least the 1980's, subwoofers provided the support for main (stereo) speakers, to extend their range down to 20hz... there was no real intent to go infrasonic.

Full Range speakers were (and typical marketing still follows this) anything with a -3db frequency range that goes below 60Hz (some brands use that more loosely and I have seen "full range" used for speakers with a bottom end going to less than 100Hz!!) - and a Sub-Woofer, was designed to extend the range of a full range speaker from its limit down to 20Hz.

There were early reviews of "Infra-Subs" and special mentions in early reviews of abilities below 20Hz... but they weren't important - it was the rise of Home Theatre effects that drove the rise of the infrasonic subwoofer genre.

In pure numerical terms, in the market, most subwoofers sold (often with lifestyle systems, soundbars etc...) have a low end limit that is unimpressive by sub standard (eg: 30Hz or 40Hz) - and provide support for very small primary speakers by providing support up to 150hz or 200Hz... One could argue that these are external woofers rather than subwoofers!

Perhaps we have 3 categories:

1) External Woofers (rough range 40Hz to 200Hz)
2) Sub Woofers (rough range 20Hz to 100Hz)
4) Infra Sub Woofers (rough range 14Hz to 40Hz)

But in the meantime confusion reigns - with many expecting that "external woofers" provide infra capabilities, as they are called subwoofers - and that is what they (mistakenly) expect of a sub.

 

[kyuu]

But in the meantime confusion reigns - with many expecting that "external woofers" provide infra capabilities, as they are called subwoofers - and that is what they (mistakenly) expect of a sub.

I don't think anyone is expecting small subwoofers to do infrasonics. People do expect too much of smaller subwoofers, expecting reach down to the 20s which is simply not realistic (with much in the way of meaningful SPL) except perhaps in the nearfield.

Still, I don't think myopic focus on the terminology is useful.

 

[dlaloum]

I don't think anyone is expecting small subwoofers to do infrasonics. People do expect too much of smaller subwoofers, expecting reach down to the 20s which is simply not realistic (with much in the way of meaningful SPL) except perhaps in the nearfield.

Still, I don't think myopic focus on the terminology is useful.

I constantly read postings by people who assume that "sub" woofer equates to infrasonic capabilities...

Language does shift, and common usage defines meaning... so unless we carefully define what we are discussing, conversations/threads can end up speaking at cross purposes!

Even well regarded high quality subs such as the SVS SB1000 - do not have infrasonic capability (and do not claim to be able to reach 20Hz within the -3db criteria)... so clarifying people's assumptions can be critical to clarity.

This Wiim sub seems ideal for its intended purpose - it provides the bass support needed for the sort of compact bookshelf/lifestyle speakers that are frequently connected to a Wiim amp/streamer - turning the overall system into a "full range" system, equivalent to typical "full range" speakers. (and yes, "full range" does NOT imply extending down to 20Hz.... again terminology definitions are important!)

 

[jeo12]

I'd like to know how well WiiM supports multiple subs. Would 2-3 of these be a good extension for e.g. Ascilab C6B, to fill up 30-60Hz and smooth out room modes?

 

[Mort]

I'd like to know how well WiiM supports multiple subs. Would 2-3 of these be a good extension for e.g. Ascilab C6B, to fill up 30-60Hz and smooth out room modes?

Not well at all. It won't even recognize multiple subs you have to use y splitters.

 

[jeo12]