AVS Special Member
Join Date: Apr 2004
Location: Kansas City, MO
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I'm happy to report that the iNuke DSP 6000 amp can apparently run two Ultimax's per side for home theater use.
I watched Through the Never (Metallica concert) tonight with a friend with just four of my UM18-22 subs hooked up to a single iNuke DSP 6000 amp. I've not yet got the other four installed. The subs were basically within +/-3dB to 10hz through external EQ using my Symetrix 551E and verified using omnimic measurements. We watched the concert at -5dB from reference with the subs about 6dB hot. The amp never spun up the fans, and I checked on it during some of the most intense scenes and there were two of three signal lights blinking, Mostly 1, occasionally 2, on the heaviest of sounds, the explosions, the building falling, etc, then the third signal light was tickling. Never any clip lights, not once. I understand I'm leaving some juice on the table by only giving these subs about 1,000 watts each, but with eight of them going - I won't be lacking for output in my 24x18 foot theater room..
The ohm rating on these subs is appears aggressive because as stated earlier, the only time the sub will get down to the 4ohm impedance is ~8hz or below. The iNuke DSP 6000 isn't supposed to work with a 2ohm load per channel (4 and 4 wired in parallel), but because of the impedance graph of these Ultimax subs, I decided to give it a try. I'm glad I did.
Eight of these Ultimax 18" subs (2K), and two iNuke DSP 6000 amps ($800) makes a world beater setup on a comparatively cheap budget.
Last edited by Archaea; 08-24-2014 at 06:43 AM.