MY bad! Prajesh is correct! I'm ashamed of myself

 

The gain is there to match the hu output. so if your deck is 500mv you would set the gain of your amp to 500mv. if your hu is 4v then set the gain to the max of 2.5v. I'm sorry for the confusion.

 

ok well i though that i should just leave the input at 2.5, now i know [img]graemlins/thumb.gif[/img] thanks alot guys

 

Ya gains can be quite taxing to set properlly.

I have four amps, some old, some new, and a HU that pumps out 5v to the preouts.

My RF Punch amp's (drives my dash speakers) gains are set as low as they go, bare minimum.

My Clarion amp, which drives my rear speakers, is also set at bull low. This is my loudest amp at lowest settings, so I also have to set my fader forward (reducing HU output to the rear) one or two notches until everything blends nicely.

My Alpine V12 amp, which drives my front door speakers, is set slightly higher than bull low, just until they balanced nicely with the dash speakers.

And my Orion... it's the toughest of all, as it's gain is adjustable from 2.5 to 9v, with no markings. Just try to set it so it sounds "right" with all the other speakers.

This lets my HU's volume level peak out at about 30 (out of 35). For competition, I disable all amps except the Orion, reduce volume on the head to 24-25, and set the gain to that.

[ May 28, 2005, 08:14 AM: Message edited by: GrizZz ]

 

ooo Which raises another question...

My head unit also has it's own sub level/volume control. By default, it's in the middle, "0", and can range from -9 to +9.

So at it's default, is it's output the full 5v available, or is it 2.5 (exactly half), and full 5v output would be with the setting at +9?

Or would they overdrive this output, causing clipping to occur?

I tried running it at +6 to +7 for a while, with the gain turned down on the amp to compensate. Couldn't really tell any difference... Maybe I should break out a multimeter and see if I can read the preout voltages...

 

ok well i was toolin with the amp in my room an i noticed that when i set the gain to .25 it is alot quieter then the 2.5 side. shouldent this be the other way around. it is on my MA Audio amp, so y is this amp diff?

 

Perhaps you're turning it the opposite way? No biggie. Just turn it so its at the lower volume and go from there.