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post #1 of 6 Old 08-12-2014, 12:06 PM - Thread Starter
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Home Theater Upgrading, what to do with subwoofer

Hi. I'm recently going to be spending 800$ or so on a new 5.1 system, I intend to keep my reciever a yamaha rx467v and my sub a dayton sub 1200. But I am selling my B652 dayton speakers


I am probably getting 3 Ascend 340's and 2 CBM 170 se's as speakers and I was wondering, Should I keep my dayton sub 1200 and buy a second dayton sub 1200? or should I buy a dayton sub 1500 and run a 15 inch and a 12 inch?


Or should i try to sell my dayton sub 1200 and get a newer sub.



For reference this is the size of my room and its very very open. i'll have my normal speakers on coffee tables as you can see.


the tv is basically right infront of where Im standing and taking this picture, during movies we swing that one couch out so that its facing the tv, the closest one on the left.




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post #2 of 6 Old 08-12-2014, 12:58 PM
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Unless you can spend upwards of $500 on a sub I would add a Dayton 15" and run both.

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post #3 of 6 Old 08-12-2014, 02:50 PM - Thread Starter
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Originally Posted by Kini62 View Post
Unless you can spend upwards of $500 on a sub I would add a Dayton 15" and run both.
is it okay to run two different size subs? Id put the 15inch near the tv and then the 12 inch near one of the couches.





Update this room is 22' by 15. is this considered a big room? its 9-10ft high aswell.


i would this this is considered big and this is without counting how open it is so 1 sub would definitely not be enough?

Last edited by renji1337; 08-12-2014 at 03:03 PM.
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post #4 of 6 Old 08-12-2014, 03:57 PM
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Quote:
Originally Posted by renji1337 View Post
is it okay to run two different size subs? Id put the 15inch near the tv and then the 12 inch near one of the couches.





Update this room is 22' by 15. is this considered a big room? its 9-10ft high aswell.


i would this this is considered big and this is without counting how open it is so 1 sub would definitely not be enough?
The room is on the upper end of what would be a medium sized room unless it's open to other parts of the house. All open space needs to be considered when determining how much sub you should have.

So having two is better than having one and the bigger the better. Set up properly the 15" and 12" subs should work well together just like you have planned. The smaller one closer to the main listening position.

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post #5 of 6 Old 08-12-2014, 04:05 PM - Thread Starter
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Quote:
Originally Posted by Kini62 View Post
The room is on the upper end of what would be a medium sized room unless it's open to other parts of the house. All open space needs to be considered when determining how much sub you should have.

So having two is better than having one and the bigger the better. Set up properly the 15" and 12" subs should work well together just like you have planned. The smaller one closer to the main listening position.
If I count the open space the room becomes like 30x20 but thats because the dining room and living room are right next to each other, the only thing that seperates them is 2 steps as shown in the photos.


how would I properly set them up? right now i just let my rx v467 do all the work with ypao but ypao doesnt eq the sub
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post #6 of 6 Old 08-15-2014, 03:51 PM
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That's ~6000 cu. ft. - a LARGE room for sure.

Here's my standard dual sub setup, but it's written for Audyssey. I'm not sure how much it would differ with YPAO.

>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>

Set the gain on both subs to the same level - around 12:00-2:00 on the gain knob is a good starting point (just a starting point, gain structure can vary greatly from one manufacturer to another). Set phase to "0" on both subs for now.

1. Connect sub #1 only and place it at the MLP
2. Do the sub crawl to determine the best position for sub #1
3. Place sub #1 in that position
4. Connect both subs and place sub #2 at the MLP (with sub #1 playing as well)
5. Do the sub crawl to determine the best position for sub #2
6. Place sub #2 in that position
7. Playing the AVRs test tone, adjust phase on one of the subs until you get the maximum SPL at the MLP (could be variable or a simple 0/180 switch)
8. Run Audyssey, first mic position only, and "calculate"
9. Look to see where Audyssey has set your sub trim, you want it to be around -5db to -8db ideally
10. Adjust the gain on both subs by the same amount up or down as needed
11. Repeat 8-10 until you get the sub trim around -5db to -8db
12. Run the full Audyssey calibration
13. Bump up the sub trim by 3db to 6db to your preference
14. Enjoy!

Hope this helps!
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