Phoenix Gold Phorum

So I finally got my rsdc124 installed and also a rsd600.1 powering it. It hits HARD and shakes my car even more. and its just only 1 sub! I couldn't believe it. But the question I am asking here is I need some tips info on tuning the sub with the amp. Using all the settings on the amp

Ratings other than CEA-2006
Power Output . . . . . . . . . . . 650W RMS @ 2 ohms, 100Hz and 1% THD+N
Bass Boost . . . . . . . . . . . . +18dB @ 45Hz
Low Pass Filter Frequency Response . . 30 to 265Hz Lowpass, 18dB per octave
Subsonic Filter Frequency Response . . 5 to 55Hz Highpass, 18dB per octave

Do I fiddle with bass boost? Subsonic filter? Frequency Selector?

Tips please help me get the most out of my rsdc124

Its a sealed box btw.

if its new let it break in before messing with it!!! it take like 40 hours!!
then start

I take it the sub is running off of a 2 ohm load correct?

I would keep my gains set correctly use a DMM to help assist you . The bassboast can be your friend or your enemy. Start off with the bassboast at 1/4 and set the gain with a DMM and regarding tghe frequency that is up to you What ever sounds good to you , I would in your case set the cross over lows at around half and set the subsonic right below the subs speced frequency.

Regarding breaking in subs I have did "the break in period" and have also gave a new sub full throttle out of the gate and I never have noticed a difference.
I have read many accounts of lab tests that showed no difference and one engineer guy made a point that on a subwoofer there really isnt "anything to break in" but thats just what I read

Good luck and I am glad that sub pounds

o know on my rsdc 10's , the specs show a low response as much as 25db,, so ive set my subsonic to that-its meant to protect your sub fromfrequencies you cant hear, its a good thing, id turn the xover pot to almost 10 oclock, and have a listen, and gradually go counterclockwise to the lower the frequency for a 12" sub, dont turn the gain above 1/4 a tthis point, even with a line driver i never go above 1/4 turn max(clockwise), and maybe only increase the db to +3, dont turn all the way up, you dont want to hurt that puppy-if it sounds great now, then maybe leave it be for time being-also, i cant find the track email my wife sent from office, have you checked recently , where its at, and also uploaad some pics, goto photobucket.com, gat anaccount for free, upload there, then direct link(cut) them to here!!!! ENJOY!!!!!

Always always always always always leave bass boost OFF. I don't understand why people use it... it creates a bloated frequency response, and it causes clipping, which can damage your stereo. Just leave it off, keep your gains low enough so that you don't clip, and it should be fine.

For a sealed box, keep your subsonic filter at 20Hz or so. For a ported box, you set it at most 10Hz below the tuning frequency.

As for low pass, you have to find where it blends best with your front stage. Usually I start at about 70Hz or so. If you can hear booming bass from people's voices, you've got it set too high.

stipud wrote:Always always always always always leave bass boost OFF. I don't understand why people use it... it creates a bloated frequency response, and it causes clipping, which can damage your stereo. Just leave it off, keep your gains low enough so that you don't clip, and it should be fine.

For a sealed box, keep your subsonic filter at 20Hz or so. For a ported box, you set it at most 10Hz below the tuning frequency.

As for low pass, you have to find where it blends best with your front stage. Usually I start at about 70Hz or so. If you can hear booming bass from people's voices, you've got it set too high.

I just don't get why every manufacturer includes bass boost if it has such a limited purpose... gah.

fuzzysnuggleduck wrote:I just don't get why every manufacturer includes bass boost if it has such a limited purpose... gah.

Because the ignorant customer demands it.

Amp A has 1000 watts and bass boost...
Amp B has 1000 watts and no bass boost...