Please tell me how to adjust my amplifier from clipping

 

Silver Member
Username: Panamanian

Panama cityPanama

Post Number: 148
Registered: Aug-05
I dont understand exactly, i know it should be at 2/3 of max volume (about #40 out of 60), but with bass, treble, midrange FLAT? (number 0). "Turn the gain upto no distortion is heard"

What's distortion? when you hear the subwoofer cracking? too BOOMY?

What about if you set it properly (with everything flat) and then you change the bass to #4 (instead of flat #0)??? Then at 2/3 distortion may happen.

What about if you listen to some songs with much bass and you adjusted properly, but then play another song with MUCHO MORE BASS and distortion comes?

Please, what's the way to CORRECTLY adjust our amplifier and prevent it from clipping? (WITHOUT THE DEVICE TO DO THAT)?
 

Silver Member
Username: Panamanian

Panama cityPanama

Post Number: 149
Registered: Aug-05
what about if my subwoofer is in a sealed box, and with the trunk door closed.
 

Silver Member
Username: Blainew

Post Number: 498
Registered: Nov-05
get the song with the most bass....turn everything to zero....and if u use the loud feature turn it on....then turn ur HU up 3/4...then turn ur gain up to where it sounds good...no clipping

i had the same problem ..took a while to fix...took it to professional places ..but they didnt help..then everytime i got in my car i changed the gain a little but until it sounded perfect
 

Silver Member
Username: Panamanian

Panama cityPanama

Post Number: 150
Registered: Aug-05
Blaine, does it mean that you never change your bass control??? (because if you add some bass it will distort). Is it like that?
 

Silver Member
Username: Blainew

Post Number: 499
Registered: Nov-05
well i have a bass control knob wired up to the front...and i never change it..its up all the way...i change the bass control on the head unit all the time though...but the bad thing about that is...since my head unit is one of the lower end pioneers, when you turn the bass up it turns the bass up on all the speakers

but anyways...if u dont have a bass control knob..the bass boost is on the amp...so you just have to play with the two knobs until you find soemthing you like...

if i was doing it..i would just trun the bass boost up all the way...and then play with the gain

but i contacted my amp company and they said to put the equalizer all flat...put the bass boost at 1/3..and then mess with the gain


do you have a bass control knob??

and what kind of head unit do you have
 

Silver Member
Username: Panamanian

Panama cityPanama

Post Number: 152
Registered: Aug-05
I guess a low or midrange headunit:
DEH-3770MP (in United States I think is the model: DEH-4700MP).

My headunit has NO bass control, only a bass,treble,mid control. :-(

Where should frequencies cut be set in which note?
80hz, 50hz, 100hz 120hz 150hz 200?

which will produce the best deepest bass?
 

Silver Member
Username: Blainew

Post Number: 502
Registered: Nov-05
are those frequencies on your head unit??

if so i dont know..i didnt change anything on my head unit..but for bass..dont go above 100
 

Silver Member
Username: Panamanian

Panama cityPanama

Post Number: 153
Registered: Aug-05
BASS control in my headunit goes upto +6 (100hz you mean)?
 

Silver Member
Username: Blainew

Post Number: 504
Registered: Nov-05
yea
 

Silver Member
Username: Panamanian

Panama cityPanama

Post Number: 154
Registered: Aug-05
ok, my HEADUNIT is 2.2v max preout.
I set my amp gain today at 2.0, and my bass boost to 3/4, and my frequency cut at aprox. 95hz.

But I feel i lost some bass, my gain was set before at 0.5v and my bass boost at about 1/2 and my frequencies cut at 80hz

What should I do now? just increase the BASS in my headunit? or put it back just as I had it? :-(
 

Bronze Member
Username: Help2

Post Number: 17
Registered: Dec-04
bass boost on the amp should be off....totally
If you dont want clipping of course...

I wouldnt recommend having the LPF higher than
80hz because it becomes too directional above that.

when setting gains, bass on the HU should be flat.
the NF/sub should be all the way up.
volume at 3/4 of maximum, or the loudest youd
ever turn it up without the sub on
then slowly turn the gain up while listening
to music youre very familiar with..
turn it up till it starts to sound different/worse
then turn it back just a tad.
all done
 

Silver Member
Username: Panamanian

Panama cityPanama

Post Number: 155
Registered: Aug-05
does bass boost create distortion?
 

Silver Member
Username: Blainew

Post Number: 506
Registered: Nov-05
depends on wat youyr subs can handle...
 

Silver Member
Username: Panamanian

Panama cityPanama

Post Number: 158
Registered: Aug-05
What's better?

higher gain (lower volts) and bass boost off?
or
lower gain (higher volts) and bass boost almost maxed.

?
 

Silver Member
Username: Blainew

Post Number: 511
Registered: Nov-05
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