Post by garym on Jul 27, 2014 14:01:16 GMT -5
Just finished building a pair of sealed subs using the Dayton RSS315HF-4 12" drivers. This driver has a reputation for low distortion, so a "musical" sub.
Followed Zaph Audio's design by and large, though used only 300W plate amps instead of Zaph's 500W, since I'd be running a pair. Turned out to be plenty --- sub volume needs to be set only to 4 (on a 0-10 scale) to keep up with the MTM mains.
Zaph's design is here:
www.zaphaudio.com/archives.html
Scroll about 1/3 down the page.
Since the UMC-200 does not have stereo sub outputs I'm running these in parallel with the mains, which are set to LARGE. That means the full spectrum is going to the MTMs, which is causing them to bottom out with low freqs at high volumes. So need to add a pair of high-pass filters to the MTMs (I built those too, so will be easy to do).
Some photos:
Though it's always fun to "build your own," and the subs sound great (bass is crisp and tight), it's not really cost-effective. The cabinet kits, drivers, amps, and misc. cost about $450 per sub. Could have bought a pair of SVS SB-1000s, which would likely perform just as well, or better, for $949.
I built all the speakers shown in the photos except the center channel. Also built the cabinet. The 15" sub handles LFE and lows from the surrounds.
Followed Zaph Audio's design by and large, though used only 300W plate amps instead of Zaph's 500W, since I'd be running a pair. Turned out to be plenty --- sub volume needs to be set only to 4 (on a 0-10 scale) to keep up with the MTM mains.
Zaph's design is here:
www.zaphaudio.com/archives.html
Scroll about 1/3 down the page.
Since the UMC-200 does not have stereo sub outputs I'm running these in parallel with the mains, which are set to LARGE. That means the full spectrum is going to the MTMs, which is causing them to bottom out with low freqs at high volumes. So need to add a pair of high-pass filters to the MTMs (I built those too, so will be easy to do).
Some photos:
Though it's always fun to "build your own," and the subs sound great (bass is crisp and tight), it's not really cost-effective. The cabinet kits, drivers, amps, and misc. cost about $450 per sub. Could have bought a pair of SVS SB-1000s, which would likely perform just as well, or better, for $949.
I built all the speakers shown in the photos except the center channel. Also built the cabinet. The 15" sub handles LFE and lows from the surrounds.
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