Subwoofer EQ of X Series

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WildPhydeaux

  • Jr. Member
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Subwoofer EQ of X Series
« on: 16 Feb 2021, 09:57 pm »
Considering Spatial X5 and anticipating I may be able to decommission my existing sub. This Velodyne DD-12 sub has full EQ capabilities and was relatively easy to dial in for my listening room. Once done, bass modes and the usual nastiness are incredibly smooth and I'm really pleased. So going away from that is a concern, but potentially worthwhile to simplify things and lower the component count - IF I can accomplish the same thing for each of the built-in subs in the X3/X5 speakers...

So how to accomplish the same thing with the built-in subwoofers in the X3/X5 series? Presumably I could get a MiniDSP and dial things in with a calibrated mic using REW, but I do not want to do this at or just after the source. I would prefer to just be doing this on the bottom frequencies, so after whatever crossover network exists in the Spatial speaker - basically the signal that goes to the subwoofers. Is this possible? I know nothing about the crossover in the speaker, so maybe I'm out to lunch. I guess my question is: is there a low-pass filter on the speaker where I would be able to "insert" EQ for sub only?

Cheers,
Robert


TomS

Re: Subwoofer EQ of X Series
« Reply #1 on: 16 Feb 2021, 11:16 pm »
I would discuss with Clayton before doing any added EQ on an OB speaker. The X5's use the Hypex Fusion DSP 250w plate amps, so it is, in theory, possible to use that capability.

https://www.hypex.nl/product/fusionamp-fa251/155

Spatial Audio

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  • Posts: 264
Re: Subwoofer EQ of X Series
« Reply #2 on: 17 Feb 2021, 12:17 am »
Considering Spatial X5 and anticipating I may be able to decommission my existing sub. This Velodyne DD-12 sub has full EQ capabilities and was relatively easy to dial in for my listening room. Once done, bass modes and the usual nastiness are incredibly smooth and I'm really pleased. So going away from that is a concern, but potentially worthwhile to simplify things and lower the component count - IF I can accomplish the same thing for each of the built-in subs in the X3/X5 speakers...

So how to accomplish the same thing with the built-in subwoofers in the X3/X5 series? Presumably I could get a MiniDSP and dial things in with a calibrated mic using REW, but I do not want to do this at or just after the source. I would prefer to just be doing this on the bottom frequencies, so after whatever crossover network exists in the Spatial speaker - basically the signal that goes to the subwoofers. Is this possible? I know nothing about the crossover in the speaker, so maybe I'm out to lunch. I guess my question is: is there a low-pass filter on the speaker where I would be able to "insert" EQ for sub only?
Robert

Hi Robert - Using MiniDSP EQ with the X5 for the sub section alone will not work because we ship the speaker programmed to use the SUB IN - high level input. We could configure it for use with one of the line level inputs, but it has to be programmed ahead of time and not something you can change in the field. So, call me if you want to discuss that approach in more detail.

Clayton Shaw
Spatial Audio Lab
435-640-1294

WildPhydeaux

  • Jr. Member
  • Posts: 91
Re: Subwoofer EQ of X Series
« Reply #3 on: 17 Feb 2021, 12:41 am »
Thank you for the insight into how the speaker is designed. I much prefer the method of feeding both the speakers and the subs with speaker level inputs and then doing DSP correction on the content the sub handles after it "discards" everything above its cutoff frequency. But clearly that needs to be tailored to the environment, so user adjustment is necessary.

Cheers,
Robert