efficient sub

[buster 10+ year member]

what parameters do I need to look at that makes a sub good for IB applications? I think I'll buy one and try it IB first and if it doesn't sound good, I'll build a ported home for it.

 

[buster 10+ year member]

anyone?

 

[Mr. Opportunist 10+ year member]

check out image dynamics

 

[dustinr 10+ year member]

Resonant Engineering RE8 or RE10 should suite you nicely. Dual 4ohm coils, so they can be wired to 2ohm.
Don't have an insanely high sensitivity rating. But, running one of those IB shouldn't require more than 100w (if even that) to reach full potential.

x2

 

[Raven 10+ year member]

If you're willing to wait until you're an old man, Adire should ship out it's new Shivas any decade now. I would be willing to believe that IB off 100w they would have one of the highest outputs of the subs listed.

 

[RFCV 10+ year member]

If you really want a very efficient sub, try the old school Cerwin Vega 'Vega' series!//content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif

96dB and down to 20Hz for the 15"

The older XL series were 98-100dB and down to 20Hz!//content.invisioncic.com/y282845/emoticons/eek.gif.771b7a90cf45cabdc554ff1121c21c4a.gif

 

[RFCV 10+ year member]

Cerwin-Vega Vega 154Rated sensitivity = 96 dB

Efficiency (1 w @ 1 m) = 112 + 10*Log(9.64*10^-10*Fs^3*Vas/Qes)

Fs = 23 Hz

Vas = 181.2 liters

Qes = 0.39

Efficiency = 112 + 10*Log(9.64*10^-10*23^3*181.2/0.39)

Actual Efficiency = 89.4 dB (1 watt @ 1 meter)

Then explain to me why they are more well known for their loudness than some other subs?

 

[JimJ 5,000+ posts]

Enclosure, maybe?

I've found for subwoofers, per-watt efficiency really isn't as critical as it is for other speakers, like full-ranges or mids.