Alpine MRV-M500 amp tuning questions

[Boomin_tahoe 5,000+ posts]

Ok so I was a little off when I said 4v...yours is 2v which means the gain on the amp has to be turned up a little more than normal.

 

[71dodge 10+ year member]

So is 80% too much or can i crank it to max?

 

[Boomin_tahoe 5,000+ posts]

Ok so I was a little off when I said 4v...yours is 2v which means the gain on the amp has to be turned up a little more than normal.

Gain setting on amp using a DMM should be set at 31.6

 

[71dodge 10+ year member]

Is this a good method?

How to Adjust Amplifier Gains Using a Digital Multi-Meter | Learning Center | Sonic Electronix

 

[Boomin_tahoe 5,000+ posts]

Yes!! Thats good you found something. There's even youtube vids on how to as well.

 

[71dodge 10+ year member]

Ok but it says on there to set voltage to ac and should be 6v or lower? Mine needs to read 31v? Also i know you disconnect the positive sub wires but you just stick the positive probe to positive and negative probe to negative speaker terminals on the amp and adjust gain up or down until you get correct voltage?

 

[Boomin_tahoe 5,000+ posts]

That's correct. Just follow those steps and deff remove the speaker wires before doing so.

 

[71dodge 10+ year member]

Thanks man, great advice,

So i should set sub level to the middle and bass level in my head unit to 0 when doing the test?

Also i watched a video from mtx audio and they said to turn the gain all the way down the bass eq all the way down and lpf all the way up when doing the test, does the lpf have to be all the way up?

 

[71dodge 10+ year member]

Actually my subs are only rated at 200 rms each, should i set it for the subs required rms or set it for amp rms?

400 rms total x 2ohm load is 800. Square of 800 is 28.28. However max amp watts rms is 500 x 2ohm load = 1000. Square of 1000 is 31.62

 

[71dodge 10+ year member]

also it says to put hu volume at 75% but i saw a video where he said the particular head unit he had was capable of going max volume without distortion, how do you know?

 

[Boomin_tahoe 5,000+ posts]

Gain setting on amp using a DMM should be set at 31.6

Actually my subs are only rated at 200 rms each, should i set it for the subs required rms or set it for amp rms?400 rms total x 2ohm load is 800. Square of 800 is 28.28. However max amp watts rms is 500 x 2ohm load = 1000. Square of 1000 is 31.62

Yup, I got it from a chart actually....a "cheat sheet" lol

 

[71dodge 10+ year member]

So i need to properly set the amps output to my speakers correct?

 

[71dodge 10+ year member]

Any need to use the smd distortion detector?

 

[youdoofus]

So is 80% too much

probably, yes

can i crank it to max?

do not do that under any circumstance

also it says to put hu volume at 75% but i saw a video where he said the particular head unit he had was capable of going max volume without distortion, how do you know?

most head units will distort at 75% volume

 

[Boomin_tahoe 5,000+ posts]

I stepped out for a bite to eat...