In article ,
"Corwin" wrote:

I'm having a problem with one of my amps cutting out when heavy bass hits.
It is a 4/3/2 channel kenwood that is cutting out. The other amp is a Road
Gear peice of crap 2 channel amp. When I run them separately there is no
problem.. I can crank it as loud as I want and nothing is wrong. However
when I run both of them, the Kenwood cuts out when the bass hits. The
kenwood is wired for 3 channels, two of them bridged to a sub. It doesn't
matter how low i set the gains, the amp just cuts out, but the road gear
doesn't cut out... It seems to cut out less when I lower the gains on the
road gear... is there something wrong with it? I was thinking about picking
up another amp and hooking that one up to see if it does the same. If anyone
has any input it would be greatly appreciated.

neL



It sounds like undervoltage protection. Make sure your wiring and
connections can handle the combined power draw.

Check out:
http://documents.epanorama.net/docum...esistance.html

Anything more than a loss of 0.5V at peak currents could cause problems.
The voltage loss is resistance/foot * feet * current. To address
heating, multiply the voltage loss by the current again.


For example of what would be a disaster of a setup:

100A peak
40A average
7 feet of 12 guage wire (.00187 Ohms/foot for 12 guage)

..00187 * 7 * 100 = 1.3 volts lost at peak current
..00187 * 7 * 40 * 40 = 20.9 watts average wire heating