Why does my peak light come on sometimes at zero gain? Ampeg suggests that I push in the -15 db, when this happens. However, I do have a BBE Sonic Maximizer that runs through the Send/Return in the back of the amp head, and this is, of course, rack mounted. So I never use the -15 db function. If gain is ever turned up too much, a clip light comes on the BBE, plus, I do use the compression on the amp (which is really a limiter), and that's always at 12:00. So with gain, at 1:00 or 2:00, and Compression at 12:00, the Sonic Maximizer clip light never goes on; given that, I think I'm fine, and the tone is always nice (good chops). Again, my curiosity is about the 7 PRO peak light always flashing with gain rolled completely off ( no volume on Master), just by plucking the E string. Is that normal? Is it a sign that I need to replace the 12ax7? I bought the amp brand new two years ago.
*Note: the compression is always rolled off, when I check the gain.
*Note: the compression is always rolled off, when I check the gain.
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The block diagram shows the peak light is on the preamp - before the power amp and yes, before the effects loop too. So the BBE can't affect the peak light. The master volume setting doesn't affect the peak light either. Turn down the amp's gain or engage the -15dB switch. By the way, it does not hurt the preamp to drive it into clipping, some people like that sound. 
so I won't.
