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High Efficiency Speaker Asylum Need speakers that can rock with just one watt? You found da place. |
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High Efficiency Speaker Asylum Need speakers that can rock with just one watt? You found da place. |
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In Reply to: High efficiency + sealed cabinet? posted by vetmedrobert@gmail.com on March 25, 2014 at 16:09:20:
I'd look for big drivers with Qts of about .4-.5 and lowish Fs
Not many pro / HE drivers fit this. 15-18" PA / instrument drivers with relatively low (95-96dB) sensitivity are sometimes candidates.
Punch the specs into an efficiency calculator, (see the link)
Punch the specs into a sealed box calculator (same site)
E.g. P-Audio P-18N "designed with a vintage voicing" (I look to P-Audio first mainly due to local availability)
3.03% efficient (96.8dB / watt)
-3dB at 72.62Hz in a ~120 litre box
It works in a reasonable box, but with a relatively high Fs. Depending on your room and tastes, that may be low enough.
Eminence DELTA-15LFA, which is only $100 in the USA:
2.62 efficient (96.2dB / watt)
-3dB at 57.45 in a ~210 litre box
If something like this looks like a reasonable compromise to you, go for it! They are easy systems to get right, and forgiving - it doesn't matter so much if the drivers don't exactly match advertised specs, or if you make the box 10 litres too large or small.
I have an all sealed system (using 6*15" drivers) and rather like it.
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Follow Ups
- RE: High efficiency + sealed cabinet? - hollowboy 04:35:52 03/26/14 (2)
- RE: High efficiency + sealed cabinet? - Crazy Dave 12:38:53 03/26/14 (0)
- RE: High efficiency + sealed cabinet? - Paul Joppa 10:28:34 03/26/14 (0)
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