Sub Swap - Soundsplinter for Soundsplinter

[squeak9798 5,000+ posts]

Any other good SQ 8's around?

Crystal CMP8

JL 8W7 (pricey)

Image Dynamics ID8v3

 

[eisenhower 10+ year member]

You're half right. They are there to match the signal from the headunit...but if you keep the gains low you can give the drivers less power, and we all know less power never hurt anything.
So if your amp puts out 100@4ohm so get the voltage you set it....

(100*4)sqrt=20v

if you only want 50watts...

(50*4)sqrt=14.14v

I thought power wasn't dependant on gain settings?

"Contrary to popular belief, an amplifiers gain control does not determine the maximum power that an amplifier can produce. As long as the preamp/drive signal has sufficient level, the amplifier will produce its maximum power output level"

Thats from http://www.bcae1.com/ . Shouldn't you use the volume control to adjust power?

 

[squeak9798 5,000+ posts]

As long as the preamp/drive signal has sufficient level, the amplifier will produce its maximum power output level"Thats from http://www.bcae1.com/ .

And guess what......with a lower gain setting, a higher preamp signal is required for a given output level. And if your headunit is not capable of providing that higher signal, your amplifiers output will be decreased //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif

If your headunit is only capable of delivering a maximum output voltage of 2V, and you set the gains on your amp to a level where 4V is required for full output, you have effectively used the gain to control the amplifier's output because the headunit does not have sufficient voltage output to drive the amplifier to maximum output.

 

[Johnny Drama 5,000+ posts]

I thought power wasn't dependant on gain settings?"Contrary to popular belief, an amplifiers gain control does not determine the maximum power that an amplifier can produce. As long as the preamp/drive signal has sufficient level, the amplifier will produce its maximum power output level"

Thats from http://www.bcae1.com/ . Shouldn't you use the volume control to adjust power?

If you have a head unit that puts out 2v unclipped signal at max volume, and set the gain then you take the same amp and set it with a HU with 8v, the gain will be lower...

But...If you take the 8v and set the gain on the amp to half of what it was, wouldnt the amp be receiving or matching half the signal? My point is, it can only go up so far before clipping but it can go as low as the dial allows...

Like I typed in my first post...

20v at the amp with be 100 watts @4ohm

14.14v will be 50watts @4ohm

as long as the HU has the same settings was used to set them the amp WILL produce less power.