Two Subs...Gain Matching vs Level Matching - Page 9 - AVS Forum | Home Theater Discussions And Reviews
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Old 02-05-2015, 05:35 PM
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^^


I was afraid you might say that, the 2 subs I am building are the only speakers I will have that exceed the size and weight of the K-horns I have! Moving them about will not be much of an option.

I am building a screen wall at the front of a 21x16 room, the DTS-10's will fit behind the wall/2.40:1 AT screen between the L-C-R towers that are also behind the screen. Due to other constraints the only location might be at the rear of the theatre, but that will take up space that would compress the seating position quite a bit and interfere with the rear surrounds.


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Old 02-05-2015, 06:55 PM
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Make some sub risers with wheels. It makes moving my large sub a breeze. You can take the subs off once in the final location. I leave the subs on the risers.
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Old 02-06-2015, 07:58 AM
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Quote:
Originally Posted by Al Sherwood View Post
^^


I was afraid you might say that, the 2 subs I am building are the only speakers I will have that exceed the size and weight of the K-horns I have! Moving them about will not be much of an option.

I am building a screen wall at the front of a 21x16 room, the DTS-10's will fit behind the wall/2.40:1 AT screen between the L-C-R towers that are also behind the screen. Due to other constraints the only location might be at the rear of the theatre, but that will take up space that would compress the seating position quite a bit and interfere with the rear surrounds.


Well, if it's any consolation, a buddy of mine has a room that is almost the exact same dimensions and we found that front corner placement of his duals provided the best response (although he sacrificed a bit in seat-to-seat variance)...you may be just fine with those monsters up front.

In the future, you could always put another smaller sub in back solely to smooth the response.
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Old 02-06-2015, 08:34 AM
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Quote:
Originally Posted by Alan P View Post
Well, if it's any consolation, a buddy of mine has a room that is almost the exact same dimensions and we found that front corner placement of his duals provided the best response (although he sacrificed a bit in seat-to-seat variance)...you may be just fine with those monsters up front.

In the future, you could always put another smaller sub in back solely to smooth the response.

Thanks that makes me feel more confident that it won't be a complete fiasco!


I will have to take a tape measure out and check but there might be a possibility that the DTS-10's could fit positioned to the outside of the L-R speakers since the mouth of the horn can be positioned a few different ways.


This construction picture shows a couple of the options for the mount (only one port open in operation), as you can see if they will fit I could put the mouth right in the front left/right corners.


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Old 02-06-2015, 08:43 AM
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Have you downloaded REW and got yourself a USB mic?

You're gonna need it.


BTW - very jealous of those subs.
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Old 02-06-2015, 10:15 AM
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Yes, I have REW and a EMM-6 from Dayton Audio with an Icicle USB adapter in preparation for all of this.


As for those subs, thanks, but I still need to build them (that was a pic from the forum), same with the room, now that my kitchen is done the wife gave the nod to the HT.


Years ago I built (and still have) a pair of SpeakerLab K's they are pretty much exact replicas of the Klipschorns, even ran a home built center that used the same components as the top horn but now with Atmos begging to be experienced I have gathered a whole new set of speakers, all Klipsch except for the subs to build the HT back up from scratch. So I have a lot of work ahead of me yet!

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Old 02-07-2015, 06:22 PM
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Quote:
Originally Posted by Alan P View Post
If you are not getting a gain of ~6db when you add the second sub, you've got phase issues.
I decided to just go with the single ES250P instead of running it along side my SUB12. It just never sounded right no matter what I did. I think I had a phase issue and switching either sub to 180 never gave me a balanced result. It actually sounds good and smooth now running the single. Guess I'll have to pick me up another 250 if I really want to run dual subs in the future.

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It's strange that your subs calibrate closer though....usually (because of the extra delay introduced by the sub's electronics) the calibrated distance will be further than the actual.
Funny you mention that. Running the single sub now calibrates to 10 ft compared to 6.3. I also just replaced my Venue Voice with a S-Center II. I've got to say, my system has never sounded better.
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