hey i have a Denon AVR-2808 reciever and i used to have a DefTec pro1000 sub, but i didn't think it filled the room so i decided to switch it out for a ML abyss, but i dont know how to connect it, since its not self powered, or is it? im confused:( since my pro1000 was self powered i just connected it to the sub in. what do i do w/ the abyss? the RMS on it is 300, but each of my channels only shoot out i believe 110watts. so how do i go about connecting it ?

any help thanx!

if its not self powered you'll need to purchase a power source or better yet purchase a powered sub. You can get them for as much as a power source is going to cost you and they'll probably sound a lot better. Non powered subs run off the power of the amp itself, this is found in many lower end HTiB. You best bet is to sell it off and get an actual powered sub otherwise its just not going to sound right.

A Martin Logan abyss is powered with a 300w internal amp.
Hook it up just like your DefTec pro1000 sub.....line out from
LFE on the receiver to line in on the sub....vardo

What does the manual say, are the LFE inputs on the back?

If you're unsure of how to hook up a sub are you sure that you had the DF sub properly set-up? Did you try adjusting some settings on the sub and in your receiver?

If you still have it I would try that for starters.

The Abyss has a built-in amp. Hook the Denon receiver's subwoofer output to the LFE input on the sub with an RCA cable, per the sub's instruction manual:
http://www.us.martinlogan.com/pdf/manuals/manual_abyss.pdf

Then run the Audessy Auto-EQ Multi-EQ 6-point equalization software to correct for your room. Check the Bass Management settings when it's finished. Write them down so you can come back to them. Then start playing around with other BM settings. Initially, set the receiver's Bass Management to all speakers "small" with an 80 Hz crossover. Then try other BM settings until you find the one combination that works best. Try different crossovers and different combinations of "large/small" and try the "Both" setting to send the re-directed bass to the sub and the mains. If none of them sound better than what Audessy found, go back to those. However, for many speaker/sub systems, "small/80 Hz" will work the best.

Craig

thanks for the help guys..is leaving the Power level at 8/10 to much? and if its not can i raise it to 10/10 ? or will i eventually burn it out? at 8/10 it feels good when it hits, but just wondering because on some movies it may take more.