Room Correction Required

Roon DSP won’t work with Vinyl or a TV input. I used it to handle my streaming input and it works well. I need a whole system solution however. I’m counting down for STR arrival.

For TV I just use a good quality soundbar.  
 

Regarding vinyl, I have lots of albums but don’t play them much anymore.  Roon and Qobuz has taken me over.  When I do play a record, I generally play it once and convert it to digital, add it to my library and stream it via Roon from there on. 
 

But yes DSP integrated into the hardware is a very flexible way to go for multiple sources beyond just digital audio streaming with Roon.  
 

@mitchellcp ,

I paid 4k shipped for fully loaded 3400 year and a half old (with receipt) less than 2 months ago. There was another one, at that time similarly priced. 

@mitchellcp Your description of the problem is a classic example of how standing waves cancel and reinforce bass in a room, depending on frequency.

You can fix the peaks with room correction but not the dips!!!

The reason you can't fix the dips is that the amplifier power is being cancelled at the null frequency. You could put 10,000 Watts into that cancellation and it would still be cancelled. So room correction won't work on its own!

You need to break up the standing waves. That is the way to fix this.

You break up standing waves by having subwoofers placed asymmetrically about the room. Since your main speakers already play bass, you really only need to add two subs to fix this. This kind of approach is known as a Distributed Bass Array, and causes bass to be evenly distributed about the room.

Normally you'd want the subs to not reproduce anything above 80Hz (in most rooms) so as to not attract attention to themselves.

At 80 Hz the waveform is 14 feet long. It takes the ear a few iterations of the waveform to know what the note is (it takes one iteration to know its there). So by the time you know what the bass note is, its bounced around the room several times. This means that bass is entirely reverberant.

So that also means that a mono signal can be used for bass in most rooms below 80Hz. This won't be true for really long rooms.

This fix will take care of about 95% of your problem- enough that you many not consider doing the remaining 5%. That 5% is what the DSP and bass traps can do; IOW they are maybe only good for about 2-3% each.

Put bluntly, room correction is a waste of time and money until you have the standing wave issue sorted out.

I agree with above. I need a system which will give me some good bass management as opposed to no management at all.