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Eminence Sigma Pro-18A-2 18" Cast Frame Driver
I would like to build PA ported subwoofer cabinets using plywood and to compliment JBL515EON's I was thinking crossover at 80hz down to maybe 12 to16 hz for port. I would like to do a slot port on the bottom. What size cabinet and port do I need?
It is not practical to tune this type of subwoofer so low. They are designed to be tuned in the mid 30's-40's since this is about as low as most music plays. I would recommend external dimensions of 28"H x 22"W x 18"D with a port that is 2"H x 20.5"W x 15"L for a tuning frequency of 37 Hz.
Date published: 2015-03-12
i have this sub in a beringer eurolive vp1800s box which dimensions are (WxHxD)20.9''x25.6''x24.2''. and using a gem sound xps-1000 amp but my concern about this is even though the amp is not near clip the sub start popping bad .can you help?
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Date published: 2015-03-11
I am using these as subwoofers and was wandering where to cross them over. The highs are placed on a pole above them.
This depends on how low the main speakers can play safely at the volume level you need. Generally subwoofers are crossed between 80-120 Hz, so you will have to dial them into the best sound to your ear.
Date published: 2015-02-03
i have the 4.0cuft knockdown subwoofer box with the 18" HO driver can I replace it with the sigma driver?
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Date published: 2014-08-25
I have 2 of the EV ELX118 subs and I am thinking of replacing them with high output drivers (above 500 RMS!). I am wondering if the the Sigma Pro-18A-2 18", would be ideal replacement? other alternatives? Please help. Thanks
The Sigma is an incredible driver for the price and will work very well in that EV cab, although I cannot say what specific differences you will here.
Date published: 2015-02-03
Would these be a good upgrade to Peavey PV118 cabs? If so, would a QSC PLX2402 bridged providing 2400W into 4 ohms (two of these in parallel) be a good idea?
These will work very well as replacements for those cabinets. 2400 watts will certainly be overkill for a pair but there is nothing wrong with having the headroom. Keep an eye on woofer excursion and I would recommend a HPF set at 35-40 Hz.
Date published: 2014-07-02