2. home-theater
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DSP for HT & 2-channel?

Despite my best efforts using REW I can't seem to perfectly dial in my dual sub setup with proper placement - there area always dips in frequency resposne...  I'm thinking about moving toward a MiniDSP or like to help. 

I use my multi-purpose environment for nearly every use - movie, gaming, 2channel, family gathering etc, and I don't want to make any compromises or trade-offs.  2 channel analog vinyl playback is what i'd like to optimize for.  Here's my setup:

Pioneer Elite HT (L/R & sub pre-out to the Hint6)

Parasound Hint6 (in bypass during movies, xover set at 80hz)

KEF LS50 L/R 

PSA 15" Dual Subs

 

Will a DSP help with 2 channel? 

Is there any noticeable delay that a DSP might introduce in the signal chain?

Placement would likely be out of the Hint6 -> MiniDSP -> L/R subs.  

 

Is this something I should consider? 

 

 

 

128x128martinman
erik_squires
16,037 posts
 

Well, nulls may be unavoidable, but especially for the bass, measure your sub at 3 locations. Also, check out the room simulator in the link below and attempt to keep both your sub and listening locations out of the first few nodes.  The best techniques are to use placement, bass traps and DSP together.  If you can't do that then do what you can.  The bass traps help the DSP work better by de energizing the room modes, like damping a bell.

Lastly, GIK acoustics soffit traps can really help smooth out bass responses.

Yes, DSP helps a great deal with 2 channel. No noticeable delay.

https://amcoustics.com/tools/amroc

martinman's avatar
martinman OP
93 posts
 

I was able to eliminate nulls with placement which (easy enough) was to put them the corners next to the KEFs  What I'm dealing with now is an uneven frequency response according to REW despite my best effort of placement.  

I measured 3 different locations and blended the graphs to setup the subs. 

Here's a quick description of the measurements:
20-70Hz, consistently in 85-90SPL

70-135hz, SPL dives to 75

135-200, recovers up to 85ish. 

I'd like to even out the frequency response.

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