2. amps-preamps
  3. 147940-3215

amp clipping earlier than usual?

I have a pair of mono amps with clipping indicator LEDs. One of the amps' indicators is lighting up for the first time. I've never been able to make them light up before. But it only happens on one of them. It lights up way sooner than as loud as I typically max them. I don't hear any distortion. So I'm thinking it's not an output transistor. These are LSR&D Superamp monos, 300wpch. Anyone? TIA
csontos
atmasphere's avatar
atmasphere
11,625 posts
 
Does the system sound OK and the channel to channel balance is good?
If so, it could be a problem with the indicator itself.
csontos OP
1,311 posts
 
Hey Ralph. Actually, that amp seems to be down about 2db. I switched sides to check. I have several of these sets so I'm certain.
atmasphere's avatar
atmasphere
11,625 posts
 
Hey Ralph. Actually, that amp seems to be down about 2db. I switched sides to check. I have several of these sets so I'm certain.
You switched amps, so it follows the amps? (2dB isn't much but if you didn't use a sound pressure meter for that I bet its a bit more.)

If yes that suggests some sort of damage to the amplifier.
celander's avatar
celander
1,502 posts
 
OP: you said you switched sides. Do you mean switch preamp connections to the amp channels with respect to the preamp L+R channel outputs?
More to discover