Cool, you know i have the gains on this amp full and i don't hear any distortion lol. The front distorts when i get up around 45-50 on the volume, it goes to 61 i think. My deck has 4 volt out.
The whole car is kicking ass now! have been screwing around with the crossovers and eq and sub control. The bass has become one with the front lol. I love it.
Hm....gains on the amp all the way up?? Sounds bad...reset the sub amp with the deck sub level all the way up and gain on amp all the way down...then turn it up till you hear some distortion. Or a better way is to play a sine wave and you can hear the clipping...the tone will change then turn it back down
No, i don't, i might know someone who might have one though lol. The deck is working pretty well full tilt to keep up with the back, eq is set with levels very high, subwoofer control maxed and the 2 gains on the amp i can turn all the way up with no distortion from the back. Just seems a little funny, like i should have more room with the gains. Maybe i don't have the amp set properly, it has a lot of different ways it can be set. It is kicking very nicely though. I do have some room on the eq on the bass it's about half, if i go any higher then it gets distorted and doesn't mix well with the music anyways.
hey electro.is the sub out actually set to sub out or rear.cause i have that same radio and know it has 2 settings.rear/sub. here's another one.on my old set up if i was useing the sub xover on the amp and the sub out on the head my bass would suffer. if i only used one sub xover from either the amp or the head the vol doubled.does that make sense to you?
yes, it could be because there is crossovers in the deck and crossovers on the amp. My amp has InteliQ, some kind of special thing just for using the amp for subs, maybe that's not set either. So many settings...There must be about 50 different ways to set this between my deck and the amp. Also the deck and the amp both have phase control.
wow.sounds like a good amp though.ok try just useing the xover on the amp.set the sub out on the head to rear.let me know what happens
If you use two crossovers the actual crossover frequency will change and the slope will change...either leave the deck crossover to the highest setting or turn it off or vise versa
Ya, i thought that might be happening, i have it set pretty nice now at the deck anyways, haven't had time to go through the amp. I adjust the subwoofer gain through the deck and still have the gains on the amp full for each song and i can hear distortion on certain songs so i just lower the subwoofer gain a bit. I think it's ok like this but i'm sure i'll be screwing with this for a little while. The same thing was happening with the ipod when i used the eq in the ipod and the eq on my deck it was doubling up. Ended up just running the ipod flat and used the eq on my deck. I put a bunch of pics in this Thread Pedro: http://www.caraudiotalk.com/audio-forum/showthread.php?t=4661
If you use a sine wave to set the gain...and the amp is load at 4 ohms bridged...the output voltage should be 60 volts AC for 900 watts at 4 ohms
Hey azn, where can i get this sine wave? is it something i can download and burn to cd. I'm curious to see where it is actually clipping. I have the gains full still and am controlling the subwoofer out through my deck. It allows -10db to +10db. The sweet spot is around +6db, between +7 and +10db is where it gets distorted. I have the amp hooked as 4 ohm stereo and i'm sure it has to be pumping over 600 watts because my bazooka was 560rms and this is hitting way harder. Do i measure the voltage at the amp on the speaker outputs? And wouldn't that be DC voltage?
power is dc voltage....but all sound is sent through ac voltage...hence sound WAVES. If you were getting major DC voltage at the speaker terminals than you amp is clipping really really really badly and your speakers will soon blow. Realm Of Excursion has a buncha test tones you can download....or you can buy a bass test cd that has a bunch of tones and sweeps on it
I'd use between 40-60 Hz tones for the gain....the AC voltage at the speaker output terminals should be 60 Volts for 900 watts at a 4 ohm nominal load
sweet thanks, i'm not getting the full 900 watts because this amp wants 4 ohms for 900. So am runnng 4 ohm stereo and it's supposed to be pushing 225rms by 2 according to the specs but i think it's pushing way more. Will get back with the voltages.