eskimochaos
10+ year member
CarAudio.com Elite
Ok, yesterday I spent the entire day at work (had nothing to do) learning how to set the gain.
Went to radioshack got a multimeter and went to it.
Using the calculation, the measured voltage on a 0db 35htz test tone should be 40. because sqrt(800x2) = 40.
So I adjusted the gain accordingly until 40V was hit with 3/4 volume on HU.
Does that mean that the subs were getting 400 each?
IDK but I think that the Alpine m850 is rated @ 14.4v but I was getting this voltage idle so that means its performing rated RMS w/o clipping the signal?
Now Im soon to be the proud owner of a AQ2200D. I know this pulls more power especially since I have stock electrical. (130 amp alt) will this increase in power prevent me from getting sqrt(1300x2) 51V if the amp is rated @ 14.4V but Im not getting that @ idle?
Basically, if the AQ2200D is rated @ 1300rms @ 2ohm @ 14.4V will I ever be able to achieve 51V on the multimeter at idle in the car.
How can I measure voltage @ idle...been using my 9500i but that is only plugged into a 12v source so I guess its limited?
IDK how to word that but I tried.
Now I have these steps from another post which are apparently from DJL:
Went to radioshack got a multimeter and went to it.
Using the calculation, the measured voltage on a 0db 35htz test tone should be 40. because sqrt(800x2) = 40.
So I adjusted the gain accordingly until 40V was hit with 3/4 volume on HU.
Does that mean that the subs were getting 400 each?
IDK but I think that the Alpine m850 is rated @ 14.4v but I was getting this voltage idle so that means its performing rated RMS w/o clipping the signal?
Now Im soon to be the proud owner of a AQ2200D. I know this pulls more power especially since I have stock electrical. (130 amp alt) will this increase in power prevent me from getting sqrt(1300x2) 51V if the amp is rated @ 14.4V but Im not getting that @ idle?
Basically, if the AQ2200D is rated @ 1300rms @ 2ohm @ 14.4V will I ever be able to achieve 51V on the multimeter at idle in the car.
How can I measure voltage @ idle...been using my 9500i but that is only plugged into a 12v source so I guess its limited?
IDK how to word that but I tried.
Now I have these steps from another post which are apparently from DJL:
Thanks in advance!to set aq2200d
You can set the gain with the REMOTE GAIN CONTROL BY DOING THE
FOLLOWING.FOLLOW THESE INSTRUCTIONS TO THE LETTER
1. LEAVE THE HEADUNIT OFF
2. HOOK UP THE AMP AND SUBS TO THE AMP
3. PLUG THE REMOTE GAIN CONTROL TO THE AMP
4. MAKE SURE THE MASTER/SLAVE SWITCH IS SET TO MASTER
5. SET THE SUBSONIC FILTER TO 30, SET THE LPF TO 100
6. SET THE GAIN ON THE AMP HALF WAY UP
7. TURN THE REMOTE GAIN KNOB COUNTER CLOCKWISE TO OFF
8. TURN ON THE HEADUNIT AND SET VOLUME 2/3-3/4 UP
9. INSERT CD OR TUNE TO MUSIC, AT THIS TIME YOU WILL GET NO OUTPUT FROM
AMP BECAUSE THE REMOTE GAIN IS TURNED OFF
10.SLOWLY TURN THE REMOTE GAIN KNOB CLOCKWISE UNTIL THE CLIPPING
INDICATOR LED BEGINS TO SLOWLY BLINK ON AND OFF, IF THE CLIPPING
INDICATOR LED GLOWS STEADY TURN THE REMOTE GAIN KNOB DOWN UNTILL THE
CLIPPING INDICATOR TURNS OFF OR JUST SLOWLY BLINKS
IF THE CLIPPING INDICATOR LIGHT DOES NOT COME ON WHEN THE REMOTE KNOB IS
TURNED ALL THE WAY UP TURN THE REMOTE KNOB COUNTER CLOCKWISE TO THE OFF
POSITION AND INCREASE THE GAIN SETTING ON THE AMP TO 3/4 AND THEN REPEAT
NUMBER 10
THE REMOTE GAIN CONTROL WILL NOT ALLOW YOU TO TURN THE GAIN BEYOUND THE
GAIN SETTING ON THE AMP. IT ACTUALLY IS A GAIN TURNDOWN CONTROL
WHEN YOU CHANGE THE VOLUME SETTING ON THE HEADUNIT, ADD BASS BOOST OR
CHANGE MUSIC THE POWER REQUIREMENTS TO THE AMP CHANGE AND THE AMP COULD
CLIP OR EVEN NOT PRODUCE ENOUGH POWER. All you have to do to make sure
the amp is correctly set is monitor the remote gain clipping indicator
and turn the remote gain knob up or down until the clipping indicator
light is off or just blinking now and them. If the clipping indicator
led stays on the amp is clipping and you need to turn the remote knob
down.
If you have a problem with the install STOP what you are doing and call
for help.