Wiim Ultra with REL T/x series subwoofers

Promso

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Dec 27, 2024
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Hi Guys!
I bought Wiim Ultra and pair of active speakers with integrated amps.
Think to order now REL T7X subwoofer, but I found in manual that they highly recommend to connect the sub as an inactive speaker for best quality. Screenshot from manual attached.

Anyone tried to connect such sub to Wiim Ultra? Which connection method you use? How is the quality?

I’m thinking that maybe it will not perform as well as it should if just connecting through sub out on Wiim and then maybe not even worth to overpay for this nicely sounding sub and just order something a bit cheaper.
 

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Hello people, this is exactly the topic I have been looking for))

I have been really considering to purchase a quality subwoofer for my small room (11*14feet). I mostly listen to EDM where there is a lot of bass. But I don’t like boomy overwhelming bass, but rather quick and tight one.

My setup is as follows:

Wiim Ultra -> Musical Fidelity M3si -> Buchardt P300

I am new into this hobby, and while I really enjoy the sound of my system. I feel that I could do with a little bit more in the lower range. Also, the room correction measurements on my Wiim Ultra show that there is a significant dip at 40-60hz, and the room correction can’t really fix that.

I have been leaning towards the REL T5x solely on the reviews on YouTube, however after reading this thread I am now interested also in the BK subs. Which model would you recommend considering my room size and musical taste?

Also, will I be able to fix the issue with the dip at 40-60hz if I get a sub and set the crossover point in the Wiim app at 60hz?

Last one) can you still run the RC on the Wiim Ultra with a connected sub?View attachment 15851View attachment 15852View attachment 15853

Thank you,

Sherzod

That dip is almost certainly a null, and changing your sub probably won't solve it; it's a room issue.

Fortunately, the real solution is free. Try experimenting with sub placement.

At the moment it looks like you have the sub in the front-left corner. Try front-right. That probably won't work, but it's the easiest, and least intrusive thing to try.

You can try all sorts of things like the 'sub crawl', but it's probably a bit easier, not to mention more accurate, to use room correction.

BTW, if it's any consolation, you're unlucky. Putting a sub in a corner usually removes or lessens nulls, though not always, as you've found.

If I'm wrong, and that's not your sub front-left, try that (or front-right).
 
That dip is almost certainly a null, and changing your sub probably won't solve it; it's a room issue.

Fortunately, the real solution is free. Try experimenting with sub placement.

At the moment it looks like you have the sub in the front-left corner. Try front-right. That probably won't work, but it's the easiest, and least intrusive thing to try.

You can try all sorts of things like the 'sub crawl', but it's probably a bit easier, not to mention more accurate, to use room correction.

BTW, if it's any consolation, you're unlucky. Putting a sub in a corner usually removes or lessens nulls, though not always, as you've found.

If I'm wrong, and that's not your sub front-left, try that (or front-right).
I don’t have a sub yet) only considering to purchase one to solve this issue))
 
Hello people, this is exactly the topic I have been looking for))

I have been really considering to purchase a quality subwoofer for my small room (11*14feet). I mostly listen to EDM where there is a lot of bass. But I don’t like boomy overwhelming bass, but rather quick and tight one.

My setup is as follows:

Wiim Ultra -> Musical Fidelity M3si -> Buchardt P300

I am new into this hobby, and while I really enjoy the sound of my system. I feel that I could do with a little bit more in the lower range. Also, the room correction measurements on my Wiim Ultra show that there is a significant dip at 40-60hz, and the room correction can’t really fix that.

I have been leaning towards the REL T5x solely on the reviews on YouTube, however after reading this thread I am now interested also in the BK subs. Which model would you recommend considering my room size and musical taste?

Also, will I be able to fix the issue with the dip at 40-60hz if I get a sub and set the crossover point in the Wiim app at 60hz?

Last one) can you still run the RC on the Wiim Ultra with a connected sub?View attachment 15851View attachment 15852View attachment 15853

Thank you,

Sherzod
For quick and tight base i was recommend JL Audio D series. Check Nemo propoganda review in Youtube. Rel base I think might be even hardly noticeable and not sure if that is the goal for electronic music.

It is normal that you have drop in low frequencies with not ao big speakers, that is why sub is needed..
 
Personally I cannot assign a typical sound to a particular brand. Most are making vastly different types of subs for different use cases and taste of their customers.

In theory, a vented enclosure (explicitly including Helmholtz resonators using passive radiators) can extend to lower frequcies and thus their are typicall associated with home theater use and more ooomph. In practice, most subwoofer enclosures are way to small to allow for a classically correct bass reflex alignment. Unlike sealed enclosures, the properties of a reflex enclosure doesn't change gradually and linearly when changing the volume and tuning frequency. Instead, only a finite number of discrete alignments exist, which result in low ripple linear response. Most sealed sub enclosures are way.to small to provide deep and linear bass response, too.

Manufacturers overcome these problems the same way in either case, by applying lots or EQ. There are limits to this approach imposed by electrical power handling (read: overheating), cone excursion or more precisely voicecoil excursion (distortion and finally physical damage), acceptable group delay and so on.

Summary: There probably is a certain tendency to make vented subs to suit those who are after maximum impression and seals subs for those who want to avoid boom at any cost. Both concepts can be tailored into any direction, when done right, so the above is not a hard and sound rule.

On top of that, WiiM gives you EQ and in particular PEQ to tailor the sound to your liking. There's no magic in subwoofers that make you "feel their presence" other than sound pressure level at low frequencies.
Im not even tinking about vented subs for music. The brands I mentioned sealed subs you can actually group in SPL type with which you at once feel their presence in the room and SQ type.
 
For quick and tight base i was recommend JL Audio D series. Check Nemo propoganda review in Youtube. Rel base I think might be even hardly noticeable and not sure if that is the goal for electronic music.

It is normal that you have drop in low frequencies with not ao big speakers, that is why sub is needed..
Thank you! You mean this video?


Sounds pretty cool. Which model is better suited for my 11*14 feet small room you think? 8 or 10 inch?
 
Thank you! You mean this video?


Sounds pretty cool. Which model is better suited for my 11*14 feet small room you think? 8 or 10 inch?
Yeah, this one, also can check this Erins corner, I like this guy because he never give a shit about trying to describe the sound or anything else how it feels or similar, just pure opinion on real messurements:

I think your room is quite small, should be enough that smaller version. But on price its not that big difference, so maybe thinking about future worth consider bigger.

Of course these JL and Rel subs are quite expensive comparing the goodies from BK, but really lack of reviews on how they sound on music, you are not sure what exectly you will get. But the price difference might be worth to risk😂
 
Yeah, this one, also can check this Erins corner, I like this guy because he never give a shit about trying to describe the sound or anything else how it feels or similar, just pure opinion on real messurements:

I think your room is quite small, should be enough that smaller version. But on price its not that big difference, so maybe thinking about future worth consider bigger.

Of course these JL and Rel subs are quite expensive comparing the goodies from BK, but really lack of reviews on how they sound on music, you are not sure what exectly you will get. But the price difference might be worth to risk😂
Looks like there is a good deal on ebay right now for a used one:


But in my country the grid is 220v ((

IMG_7429.jpeg
 
The problem is, I live in Uzbekistan and we do not really have these true audiophile brands here yet. So I have one shot, one opportunity when I make an order from overseas)
I heard these sell directly and cover return costs if you dont like it. Might be worth trying, but it is not sealed sub, like hybrid, you can seal these ports with some foam they provide:

But i dont believe it will be as fast and tight as JL audio.
 
Looks like you need some more time to make up your mind. YouTube videos and "reviews" won't help you much in the end. You never know what the reviewer really heard nor do you know his agenda.

No matter how much we would like this to be the case, there isn't one brand (or it's managing director and godfather of all subwoofers) who know it all (consequently proving everybody else wrong). Just pick something that is mechanically, electrically and thermally solid, as long as you can afford it. EQ can do everything to make it suit your taste. If you can afford the most expensive stuff, simply go for it. You'll want to try it at some point, anyway.

BTW, foam plugs don't turn a reflex design into a sealed design.
 
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Looks like you need some more time to make upmyour mind. YouTube videos and "reviews" won't help.younin the end. You never know what the reviewer really heard nor do you know his agenda.

No matter how much we would like this to be the case, there isn't one brand (or it's managing director and godfather of all subwoofers) who know it all (consequently proving everybody else wrong). Just pick something that is mechanically, electrically and thermally solid, as long as you can afford it. EQ can do everything to make it suit your taste. If you can afford the most expensive stuff, simply go for it. You'll want to try it at some point, anyway.

BTW, foam plugs don't turn a reflex design into a sealed design.
Thanks for the advice. But do you think I will be able to fix the dip at 40-60hz with a solid sub?

I found the following deal which has also a matching voltage for me.


Does anyone has experience with this platform Audiogon? Is it a safe place?

Thanks
 
Thanks for the advice. But do you think I will be able to fix the dip at 40-60hz with a solid sub?

I found the following deal which has also a matching voltage for me.


Does anyone has experience with this platform Audiogon? Is it a safe place?

Thanks

If the dip is caused by a null you can’t fix it, apart from by either moving the sub, or very expensive and very large treatment panels.

A null is basically where a soundwave from your sub at a certain frequency is reflected and recombines with the original signal, and they cancel each other out.

That’s down to the room, not the sub.
 
If the dip is caused by a null you can’t fix it, apart from by either moving the sub, or very expensive and very large treatment panels.

A null is basically where a soundwave from your sub at a certain frequency is reflected and recombines with the original signal, and they cancel each other out.

That’s down to the room, not the sub.
Well, how do I know if that is indeed the case before making an expensive purchase of sub? On paper my speakers actually don’t need a sub, but I am looking for one because of that dip..(
 
Well, how do I know if that is indeed the case before making an expensive purchase of sub? On paper my speakers actually don’t need a sub, but I am looking for one because of that dip..(

Well, I'll let others more expert confirm, but that's what's suggested by the room correction measurements.

If you have a dip, and you EQ that frequency by several dB, but it makes no difference, it's a null. This is because, when you turn up that frequency from the sub using EQ, the reflection also becomes louder, so it cancels out the increase in EQ.

Before buying a sub your only other choice is to see if you can move your main speakers, but that doesn't look possible.

Can you try borrowing a sub? Or buying a cheap one?
 
Well, I'll let others more expert confirm, but that's what's suggested by the room correction measurements.

If you have a dip, and you EQ that frequency by several dB, but it makes no difference, it's a null. This is because, when you turn up that frequency from the sub using EQ, the reflection also becomes louder, so it cancels out the increase in EQ.

Before buying a sub your only other choice is to see if you can move your main speakers, but that doesn't look possible.

Can you try borrowing a sub? Or buying a cheap one?
Thanks for the inputs, I’ll if I can find a sub for rent..)
 
:devilish: So is it possible that you were happy with the sound until you saw a graph that made you think you shouldn't be?
Semi-serious question!!
Well, you have a point I won’t deny. )) I still enjoy the sound, but I feel that there is room for improvement in the lower end. I was feeling that even before I saw the graphs, the RC just confirmed that in my opinion. I am new into this, and my reference point is some EDM festivals)) haven’t really heard how a good home system sounds )
 
Well, you have a point I won’t deny. )) I still enjoy the sound, but I feel that there is room for improvement in the lower end. I was feeling that even before I saw the graphs, the RC just confirmed that in my opinion. I am new into this, and my reference point is some EDM festivals)) haven’t really heard how a good home system sounds )

Try moving the speakers around, more into corners, or further from the wall, try both sides of the wall either left/right wall or back wall front/side placement.

Make sure windows and doors are closed also that effects low end
 
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