How do you blend your sub?

I use much higher crossover point - basically using Geddes multisub method to fight the room modes. It takes some time - but in the end, the results are more than great.

Very important note - the best looking FR measurements (including time domain - waterfall, group delay...) doesn't mean the best sound.
 
Definitely does take time to get right.

As I've played with the settings on the new La Scala's, the final setting is VERY different than what I ended up with on the Cornwall IV's.

With the Cornwalls and their direct radiating woofers that rolled off at about 40-45hz I got best results at 24db crossover at 36 hz and it blended great.

With the new La Scala's and their horn loaded 15" woofers that only go down to about 55-60hz I tried 24db slope, 18, 12 at all different frequencies and still couldn't get it to blend at all (even with phase adjustments and such).

Then I remembered how REL recommended I set up their sub I had a long time ago, and set it to 6bd slope, started at 30 hz and ended up at 37 hz and seems to be blending much better. We'll know when I get about 300-400 hours on the speakers if that setting remains.
 
Hey Mark wanna see a picture of my listening room? I am not shy. Not sure but I must have got sublucky. Put the single SB13 Ultra dead center in front of my rack between the speakers and best bass ever. I have had a few guys over for GTGs and they agreed too. Just call me the sub whisperer! :congrats:


mep said:
Can we see a picture of your listening room and setup?
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nc42acc said:
Hey Mark wanna see a picture of my listening room? I am not shy. Not sure but I must have got sublucky. Put the single SB13 Ultra dead center in front of my rack between the speakers and best bass ever. I have had a few guys over for GTGs and they agreed too. Just call me the sub whisperer! :congrats:
Click to expand...

Sure Marty, post a picture of your room. So you are a one sub slinger?
 
Sorry Mark it was a little cluttered when this pic was taken. Had several options out for a GTG. I am not a bass fanatic so a single sub is all I can sling.

NLuFWx6.jpg


mep said:
Sure Marty, post a picture of your room. So you are a one sub slinger?
Click to expand...
 
nc42acc said:
Sorry Mark it was a little cluttered when this pic was taken. Had several options out for a GTG. I am not a bass fanatic so a single sub is all I can sling.

NLuFWx6.jpg
Click to expand...

That sure is a nice looking set up Marty! SVS certainly makes some great subs.
 
nc42acc said:
Sorry Mark it was a little cluttered when this pic was taken. Had several options out for a GTG. I am not a bass fanatic so a single sub is all I can sling.

NLuFWx6.jpg
Click to expand...

Your room looks nice Marty. I'm glad the single sub and its location work for you in your room. I've been using dual subs since the early 1980s and there is no going back for me.
 
Maybe I should have tried the other SB13 before I sold it. :disbelief:

mep said:
Your room looks nice Marty. I'm glad the single sub and its location work for you in your room. I've been using dual subs since the early 1980s and there is no going back for me.
Click to expand...
 
Really interesting post.

I have a total of four REL T-Zero subs ... they are little gems in my estimation.

In my living room setup, they are hidden behind two cabinets that sit in 45-degree angles to the corners of the walls. Ideal setup? No. But it passes the wife test 100%. She has no idea the subwoofers are there, seriously! They are paired with Harbeth P3ESR-XDs, which also pass the wife test. She likes them. The cabinets are beautiful and the somewhat retro look fits the living-room vibe well.

My other two RELs are paired with Harbeth C7s. They are in my home office, about 12 feet by 12 feet. They are visible and the crossover is set pretty low. But they definitely add lower-range nuance when necessary. The C7s probably do not "need" them, but they do add to the overall experience.

We have wood floors, which probably helps explain why the downward-firing RELs work well in our house.
 
SteveInMinn said:
Really interesting post.

I have a total of four REL T-Zero subs ... they are little gems in my estimation.

In my living room setup, they are hidden behind two cabinets that sit in 45-degree angles to the corners of the walls. Ideal setup? No. But it passes the wife test 100%. She has no idea the subwoofers are there, seriously! They are paired with Harbeth P3ESR-XDs, which also pass the wife test. She likes them. The cabinets are beautiful and the somewhat retro look fits the living-room vibe well.

My other two RELs are paired with Harbeth C7s. They are in my home office, about 12 feet by 12 feet. They are visible and the crossover is set pretty low. But they definitely add lower-range nuance when necessary. The C7s probably do not "need" them, but they do add to the overall experience.

We have wood floors, which probably helps explain why the downward-firing RELs work well in our house.
Click to expand...

Thanks for sharing! It always adds an interesting dynamic when we need to blend W.A.F. and the listening room being a "real" room in the house vs. a dedicated listening room.
 
OK guys - received and set up the sub DSP today Mike recommended.

VERY nice upgrade indeed.

Definitely noticing more even (output wise) sounding bass and more texture and differentiation in the bass notes than before.

Honestly it's a no-brainer for the price of the 8033 v2.
 
I do a DOE (Design of Experiments) to integrate my sub to my 2-channel mains. I really like a good p-value. DOE analysis in JMP.

20%20Hz%20node%20screen%20cap.jpg


DOEs also let you characterize interactions, and plot them as a 3-D response surface. You can't do this with OFAT analysis.
155%20Reaponse%20II.jpg


Leverage plots across different frequencies
SecondDOE-PlotsWeb.jpg
 
Puma Cat said:
I do a DOE (Design of Experiments) to integrate my sub to my 2-channel mains. I really like a good p-value. DOE analysis in JMP.

20%20Hz%20node%20screen%20cap.jpg


DOEs also let you characterize interactions, and plot them as a 3-D response surface. You can't do this with OFAT analysis.
155%20Reaponse%20II.jpg


Leverage plots across different frequencies
SecondDOE-PlotsWeb.jpg
Click to expand...


You are WAAAAAAYYYYYYY more sophisticated than I am. LOL.
 
MichaelsMinute said:
You are WAAAAAAYYYYYYY more sophisticated than I am. LOL.
Click to expand...

:P ;) Sorry, DFSS MBB. I used to teach this stuff to PhDs, MS, and EE's in science and engineering. The smart ones jumped on it, though, just as I did when I learned it. One of the most useful and insightful things I ever learned working as a scientist. Honestly don't know why DOE is not taught at University for scientists and engineers.
 
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