Does dual sub matter if both subs have equal dips/peaks in REW room sim?

[Snickers-is]

Yes, since we all have one of them alongside our other supercars in our garage, we can off course all relate to that...

 

[Snickers-is]

Nothing in @Bjorn 's or @sigbergaudio 's arguments suggested that the sub was not fed digitally, or that there were no dsp for the main speakers.

I also doubt that anyone would find it easy to hear the difference between a sub running digital vs analog input.

 

[Geertidow]

@OCA after extensive listening: your PEQ and timing does very well. I compared it with different time allign methods, yours easily wins.

I checked the polarity of the speakers and amp and they are correct.

So now I only have to decide if I'll buy an extra sub or not.

 

[OCA]

@OCA after extensive listening: your PEQ and timing does very well. I compared it with different time allign methods, yours easily wins.

I checked the polarity of the speakers and amp and they are correct.

So now I only have to decide if I'll buy an extra sub or not.

It could be slightly improved with additional FIR filters for speaker crossover phase shifts but I use a simulator (don't have MiniDSP) and Flex DL version didn't seem to have FIR filter slots unlike the Flex. It's a minor improvement that lifts the center stage a little higher.

 

[Geertidow]

It could be slightly improved with additional FIR filters for speaker crossover phase shifts but I use a simulator (don't have MiniDSP) and Flex DL version didn't seem to have FIR filter slots unlike the Flex. It's a minor improvement that lifts the center stage a little higher.

I can easily switch to the regular Flex version if that helps.
If I were to buy a second sub, would you advice under the left speaker or behind the couch (as the custom sub is)?

 

[OCA]

I can easily switch to the regular Flex version if that helps.
If I were to buy a second sub, would you advice under the left speaker or behind the couch (as the custom sub is)?

Cool then. I'd place them symmetrically near the left and right speakers. Think of it as having floorstanders with large yet mobile woofers.

 

[Geertidow]

And is it easy to make Flex filters for the current measurements?
I'll contact you when the new sub and cabinets arrives. Could take a while and I'll send a DM

 

[OCA]

And is it easy to make Flex filters for the current measurements?
I'll contact you when the new sub and cabinets arrives. Could take a while and I'll send a DM

They're the same.

 

[Geertidow]

Cool then. I'd place them symmetrically near the left and right speakers. Think of it as having floorstanders with large yet mobile woofers.

And digital crossovers

 

[Geertidow]

Well I gave in and bought an extra subwoofer to see what it's doing to the setup. I've read so many positive stories about double front subs that I'm going to give it a try.

 

[Geertidow]

I'm hooking it up on my Wiim Pro amp for ease or use. Does anyone know if daisy chaining the LFE signal works (without delay) on the SVS 2000 Pro?
Can't find it specifically in the manual.

 

[staticV3]

I'm hooking it up on my Wiim Pro amp for ease or use. Does anyone know if daisy chaining the LFE signal works (without delay) on the SVS 2000 Pro?
Can't find it specifically in the manual.

Simply connect both subs to the WiiM's Sub out using an RCA splitter:


You can set global phase, crossover, level, delay on the WiiM, then optimize per-sub delay, phase, PEQ etc using the SVS App.

 

[Geertidow]

Is that better than daisy chaining?

 

[staticV3]

Is that better than daisy chaining?

You need less cable length and there's no downside.

 

[Geertidow]

Okey, just to continue this journey.
When listening, but measuring, the following crossovers sound nice. The standard Wiim sub out XO is LR 24 dB/oct I think.

1. 80 Hz (24 db/oct)
2. 60 Hz (24 db/oct)
3. 60 Hz without rolloff at mains (use natural rolloff) and subwoofer at 24 db/oct.

Any theoretical ideal choices?

 

[sigbergaudio]

Okey, just to continue this journey.
When listening, but measuring, the following crossovers sound nice. The standard Wiim sub out XO is LR 24 dB/oct I think.

1. 80 Hz (24 db/oct)
2. 60 Hz (24 db/oct)
3. 60 Hz without rolloff at mains (use natural rolloff) and subwoofer at 24 db/oct.

Any theoretical ideal choices?

There's no general theoretical ideal across different rooms and systems. A combination of listening and measurements is the only way to know.

 

[Geertidow]

I ended up putting back the minidsp flex, it's just so easy in use when tinkering.
Now awaiting the 2nd sub. Eager to see what it will do.

 

[Geertidow]

I ended up with two subs and I can confirm what others have said. Dual front subs do something nice with the sound.
It's hard to say what it is, but it's easy to distinguish between one and two subs (even when level matching).
I can't really do blind A/B testing here since nobody around me cares enough to spend sufficient time on this, but it's still an interesting phenomenon.
Many thanks for all the help so far, and especially @OCA for making filters (i keep flipping back and forth between DIRAC and your FIR filters).

 

[PashkaTLT]

As other have stated, multiple subs allow you to get a better frequency response. But for me the main reason would be to hear bass from both sides.

I know you initially placed the sub in the center. But in my case, I couldn't put it in the center. So when I had one 15" on my right it was uncomfortable, I could hear and feel bass coming more from the right. I think if one can afford 2 subs, it's better to go with 2 subs

 

[Mort]

multiple subs allow you to get a better frequency response

Only with multiple listening positions.