Purchased a PL4.0 amp, and wired it into my system to drive a couple of Keystone cabinets. Sounded great, pushed on it a little and the first time it blipped the clipping LED, the protect circuit lit up, the amp restarted & it gracefully picked up where it left off. A day later it would do it running on a solid -10 LED, no clipping LED needed. Also noticed the gain on the left channel is about 2db hotter than the right if that matters.
Exchanged the amp with another PL4.0 & have no such behavior from that one. It's as solid as a rock. Dug through the PL4.0 service manual & it says nothing addressing a protect circuit kicking in early. Anyone ran into this before & could tell me where to start looking in there?
Todd
Exchanged the amp with another PL4.0 & have no such behavior from that one. It's as solid as a rock. Dug through the PL4.0 service manual & it says nothing addressing a protect circuit kicking in early. Anyone ran into this before & could tell me where to start looking in there?
Todd
did you ever find out the problem with this amp? I currently have a Powerlight 1.8 that has the exact same problem. I've also looked through the service manual but that also didn't really get me anywhere.
Thanks in advance!
Sorry..l haven't been around for a while & didn't know this thread was trying to keep going 🙂
To answer your question: no. I sold that amp to a tech dirt cheap & never heard anything back about it. My education since has led me to believe I could have sorted it out by stepping through the adjustment procedures in the service manual.
Todd
To answer your question: no. I sold that amp to a tech dirt cheap & never heard anything back about it. My education since has led me to believe I could have sorted it out by stepping through the adjustment procedures in the service manual.
Todd