Clipping question..

[germanyt 10+ year member]

Say I set gain on an oscope to just over the point of clipping but the head unit volume is on halfway to max. In theory, would turning up the volume louder and increasing the preout voltage eliminate the clippng?

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[garychurch84 10+ year member]

No!!!!

Your max volume is now halfway! Anything above that it'll just get worse the higher you go!

 

[Jeffdachef 5,000+ posts]

nope it just matches with the amp gain. If you raise your head unit volume, you'll either have to lower your sub level or lower your gain if you play music that matches the test tone you used to set the gain.

However if you used a 0 db test tone and are just playing normal hip hop, you can raise the sub level a bit more because DB levels on song also determines your pre-out voltage and not much music out there has 0 db bass signal strength.

I highly recommend you use audacity to check your song's bass levels and set gains accordingly to your music library.

 

[germanyt 10+ year member]

Hmm.... i used a 50hz -3db tone to set gains on an APCL-3000. Volume is at 15 of 40 on a Pioneer double din. Not sure what output voltage is at vol 15. Set gains to 50 vac before clipoing occured. Eq is flat and bass boost at 0. But 50vac at 2 ohm is only 1250 rms by my calculations. And this amp has been playing at voltages as much as 100vac read using a dmm for months with no audible distortion and no coil smell. Not sure whats going on. I was thinking that the clipoing is happening early because the preout voltage is low at volume 15. I used that volume because the mids and highs are screaming at that point.

Btw gain is at roughly 30% right now.

 

[Jeffdachef 5,000+ posts]

lower the gain on the mids and highs and lower the gain on the subs. If the mids and highs are on head unit volume, lower the speaker levels or lower the EQ across the spectrum.

 

[germanyt 10+ year member]

The mids are on a 4 channel. So how do i explain the fact that it clips at 55vac? That cannot be normal.

 

[Jeffdachef 5,000+ posts]

The mids are on a 4 channel. So how do i explain the fact that it clips at 55vac? That cannot be normal.

could very well be normal on an oscope, it might not be clipping, audiopipes have distorted sine waves = dirty power but not yet clipping. Was it a square wave or did it just look bad?

 

[germanyt 10+ year member]

50vac



60vac

 

[germanyt 10+ year member]

Any more thoughts on this?

 

[Massive spl]

No!!!!Your max volume is now halfway! Anything above that it'll just get worse the higher you go!

This^

 

[germanyt 10+ year member]

Looking for advise on why i only get 50 clean volts out of a 3k with substantial electrical. That 1250 watts. Audiopipe isn't DD but its not Boss either.