eclipse 88120.4 enclosure?

[4lowrodeo 10+ year member]

I have my eclipse 12" sub in a .85 cu. in. box (recommended for boomy bass). and I am not too impressed with the sound I am getting from the sub. theres just some lows that it is struggling to hit. its running on a PG xs2500 amp. Ive used insulation before in my old system. would polyfill make a difference? or should I try building a bigger box, if so how big? any suggestions would help me out a lot.

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[jlaine 10+ year member]

I'd go ahead and try polyfill first, it won't hurt, and is cheaper than building a bigger box...

If that doesn't remedy the situation, I used them in 1.2 cubes on average with good results... They lag behind on some music no matter what, the best enclosure I've had for them so far is aperiodic.

 

[MikeofTulsa Moderator]

also do you have a sealed or ported box? for more bass i would go w/ a ported.....the sealed is more for sound quality...which i prefer....but to each his own....goodluck

 

[4lowrodeo 10+ year member]

its a sealed box, and I do want better SQ. I thought I read somewhere that this sub is made for sealed enclosures (which I like better anyways). thanks for the replies fellas..

 

[MikeofTulsa Moderator]

yea it probably will work best in the sealed box for sq....i was thinking maybe you were wanting spl out of a sealed box....i would go w/ the larger box then....and some poly fill...good luck

 

[Iwvustang 10+ year member]

I read somewhere that the Eclipse is made for a 1.5 ft^3 sealed box. Which was varified by someone that owned these on another forum.

 

[Iwvustang 10+ year member]

I think a .85cu in box wouldnt be giving that sub enough air to move inside the box. It would be compressing/decompressing too much, causing the sub not to make proper excursion. Correct me if im wrong.