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WiiM Amp Pro with a Bose 901 iv equalizer?

USMC1316

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Feb 11, 2023
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I need some advice, is it possible to run a WiiM Amp Pro with a Bose 901 iv system?
A friend bought the Bose system and had a Wiim Amp, and we are both trying to figure out how to hook it up.
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Any advice would be great!
 
Generally you would need a processor loop or a tape loop to accommodate such eq. I don't believe that amp offers such.
 
I’ve been thinking, why not use the DSP instead of the Bose box.

But otherwise, there is no equivalent of a tape monitor loop.
 
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The Bose was going into a store to play back ground music. We where looking at the cheapest solution, preferably a integrated map/steamer. What inputs/outputs do i need? 1 rca in and 1 rca out? would it matter if its a phone, aux ect.. ?
 
I’m not certain whether or not that will work, but something else to consider. If I’m not mistaken the eq for those speakers is pretty extreme because the speakers in their own are a mess. Extreme eq would be very taxing on an amplifier and the little WIIM (while an awesome product) may not be up to the task.
 
If you want decent streaming, something like this will work: Wiim Pro or Pro Plus -> Bose EQ -> power amp of your choice. Use the amplifier in put and output - Wiim Pro to input, output to amplifier.

The Bose EQ was designed for something with a "Tape Monitor" (or equivalent) loop. You could hunt resale stores for an old receiver or integrated amp with a Tape Monitor function (and associated issues that are endemic to old electronics...), or just go with the layout I mentioned.

And check those speakers; depending on age, odds are the surrounds are shot and they will need re-foaming.
 
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I reformed a Series IV. It’s not difficult. You can do it without removing the drivers.
 
I reformed a Series IV. It’s not difficult. You can do it without removing the drivers.
True, but still not what I would call "relaxing." ;) Sooo many drivers. How long did it take?

Also, the eq electronics could use a once-over and maybe a re-cap.
 
True, but still not what I would call "relaxing." ;) Sooo many drivers. How long did it take?

Also, the eq electronics could use a once-over and maybe a re-cap.
An afternoon. It wasn’t my first refoaming project, but it was the easiest. The small size of the cones makes centering not a problem.

My wife used the Series IV for background music in her sewing room. I replaced the Bose eq with a minIDSP from Deer Creek. The amp is a low end Fosi. It’s not stressed for background levels.

I have three 901s. Two from garage sales. I plan to get WIIM ams for them and program the DSPs for the Bose curves, they’re pretty simple. They will go to my children or to friends. They ooze retro cachet. And don’t sound bad at all.
 
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I need some advice, is it possible to run a WiiM Amp Pro with a Bose 901 iv system?
Technically, yes.

You can do external analog source->Bose EQ Box->WiiM Line in.

Naturally, you would not be able to use any of the WiiM's digital inputs, including streaming.

The obvious solution would be to ditch the Bose EQ Box and migrate its EQ to the WiiM's built-in DSP.

Theres a thread here with frequency response measurements of the Bose box, so this should be pretty straightforward.
 
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