breaking in new sub

[darudeone 10+ year member]

I have a new Polk SR10dvc 700wrms. I use a BA 2200GT for two Polk MM15dvc's. I want to keep one 15" for 35hz and under and use the 10" for the rest. The BA puts out 350rms x 2. Is 350rms enough to break in the 10" properly? What is the best way to break in the sub?

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[Chriszle 10+ year member]

Either use the 15s or the 10. Combing them will end up with very poor sq.

 

[Moble Enclosurs 10+ year member]

Either use the 15s or the 10. Combing them will end up with very poor sq.

Not necessarily poor, but improper. So agreed. Do not combine the two drivers. Different mechanical parameters will give you difference phases of output and may cause cancellation if the phases of each frequency are not in-phase.

 

[Moble Enclosurs 10+ year member]

If I didn't say it enough....."phase" lol very important here. .........one more time..."phase". //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

 

[audioholic 5,000+ posts]

There's no reason your 15 shouldn't be able to play 2 octaves (20-80hz) properly. If it cant, you have other issues besides the diameter of your speaker.

 

[Moble Enclosurs 10+ year member]

There's no reason your 15 shouldn't be able to play 2 octaves (20-80hz) properly. If it cant, you have other issues besides the diameter of your speaker.

Great point. Complete high efficiency in any design for any driver will reside around 1.5 octaves without including -10dB cutoff ranges. For -3dB range, 1.5 octaves is optimal and a more reachable goal, with efficiency considered.