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Dayton Audio DC300-8 12" Classic Woofer
Hi, can you recommend replacement midrange and woofers for Rectilinear III Highboy speakers? The originals were replaced with non-OEM drivers...and now THEY are shot. All other components (tweeters and crossover) are fine. Thx in advance!
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Date published: 2015-02-23
My infinity cabinet crossover is 800 hz 2nd order out of the 4 ohm woofer. Puting in an 8 ohm dc300 will be @ 400 hz. I am thinking of bypassing the whole woofer leg of the XO. Will a dc300 work if the entire 20-20K hz signal is fed to it.
It's unlikely that the DC300-8 driver will be damaged by receiving a full range signal, however the sound quality will not be a good match for what the original driver could provide. I recommend investigating the DCS305-4 12" subwoofer; even though it is a subwoofer, it has an extended upper frequency range and a 4-ohm impedance that will likely work well in your original application. Keep in mind that the only way to truly restore your speakers to factory performance is to locate a factory-original replacement woofer from Infinity.
Date published: 2015-01-26
I have a 2.42 cuft sealed Infinity kappa 7 cabinet not subtracting the driver volume. What is the driver volume of the DC300 and will I be able to keep it sealed and get good sound.
The displacement of this driver is 0.09 cubic feet, so not enough to matter in this case. This will work well in that volume sealed, with an F3 of 50 Hz and in room response into the low 30's. If you wanted, you could install a 3" diameter, 6" long port into the cabinet which will tune the enclosure to 30 Hz and provide a little more extension.
Date published: 2015-01-15
I would like to use these in a 4.90 cu ft enclosure, what should I use for a port size?
I would recommend a port that is 3" in diameter and 4-3/4" long for a tuning frequency of 23 Hz.
Date published: 2014-12-31
Hi, I am looking to replace the dry-rotted Realistic 12" woofers (#40-1026)in my 20 year old homemade boxes. My boxes are about 2.66 cu.ft with 3 inch ports roughly 4.5" long. Foam installed on 3 sides and bottom. Would these be suitable replacements?
Yes these will work. Right now the enclosure is tuned to about 33 Hz, you could make the ports 8" long and drop that tuning frequency to about 26 Hz for smoother in room response and more extension.
Date published: 2015-01-01
Can I use 2 of these 8 ohm in parallel to replace a 4 ohm speaker on my Cerwin Vega T-12 using the original crossover with no alteration?
Aside from the obvious cabinet modifications, adding a second driver in parallel will boost the sensitivity up 6 dB from a single woofer. Depending on the actual sensitivity of the original driver, two may overpower the mid and tweeter in the cabinet.
Date published: 2015-01-01