Wiim Ultra with REL T/x series subwoofers

Promso

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Joined
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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It shouldn't make a difference, but grounded mode should be the default that only needs to be changed if you encounter humming from the sub.

Settings looking good in theory on the sub and in the WiiM Home app. Except from the missing power cord, of course. ;)

As suggested before, are you sure that there really is any output from the subwoofer? Temporarily set the crossover frequency in the WiiM Home app to 250 Hz just for testing and listen again. Did you remove the grill and can actually see the cone moving?

Just to rule out the "upgraded fuse" as non-working. :)
Do I need to plug to the socket? 🤣🤣 kidding)

I checked if the cone was moving and it did. Just the sound is quite weak, still waiting for the more quality sub cable to arrive.

Ok one more thing to mention, the guy who sold them to me did an upgrade.

1 - Synergistic Research Blue fuse
2 - 1.5m Van den Hul Mainsstream Hybrid DIY power cord with IeGO 8085 gold plugs

But if anything these mods should enhance the sub I assume)
 
Hi. Thanks. The filter is off on the sub and on in the Wiim App. I wonder if grounded/isolated has anything to do with the output?
View attachment 16430View attachment 16431
Or as I said try turn on filter on sub, set frequency on 60-70 and turn on sub filter bypass on wiim app. At least you will know if wiim is not your problem.

P.S. I think default input on sub should be on Left, probably no difference, but try.
 
So my new fancy Y split cable has arrived. But no progress. I almost gave up, thinking that I bought a faulty sub. In a last attempt I placed the sub behind the seating position using the cheap RCA (because the new cable is not that long) and to my surprise the volume is now on par with my speakers. I made some measurements and the dip at 50hz is now only -4db, however now there is a massive hump at 80-100hz +8db)). The room correction is not helping much so now I am playing with custom PEQ. Is there a way to measure the results of custom EQ so to assess if I am moving at the right direction?
 
So my new fancy Y split cable has arrived. But no progress. I almost gave up, thinking that I bought a faulty sub. In a last attempt I placed the sub behind the seating position using the cheap RCA (because the new cable is not that long) and to my surprise the volume is now on par with my speakers. I made some measurements and the dip at 50hz is now only -4db, however now there is a massive hump at 80-100hz +8db)). The room correction is not helping much so now I am playing with custom PEQ. Is there a way to measure the results of custom EQ so to assess if I am moving at the right direction?

Try REW room sim, that can give an idea where a good locations are.

Ideally you want REW & UMIK 1 and get an idea what needs correcting
 
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