I'm using a Lab Gruppen PLM10000q to drive my main speakers (BMS 15N630 woofer in vented box with BMS 4592 coaxial compression driver, bi-amped low-mid, passive mid-high, thanks Assistance Audio). This being a custom box, and me being an amateur, I roll my own settings 8O~8-O~:shock: . The amp is the four channel unit with the built-in 2-in, 4-out Lake processor.
There are three limiters in the Lab Groupie: an RMS limiter, a peak limiter, and the proprietary "inter-sample voltage peak limiter" (ISVPL). I put this baby on the bench and all three work as advertised. (For what that thing cost, they should.) Using tone-burst test signals at various frequencies I observe the ISVPL doing a great job of limiting without crushing the first half-cycle.
Now my question: Since the ISVPL does such a great job, what's the purpose of the regular peak limiter? Is it just something that came along for the ride when they integrated the Lake, or am I missing something? In any case, I have it turned off (threshold set to max) and am happily relying on the ISVPL. I never push stuff that hard, so the ISVPL just sits there waiting for the occasional accident anyway.
Irrelevant personal stuff: This is my first post here. I've been lurking on that OTHER forum for the last three years or so. Thanks to all the great folks there, many of whom appear to be here now, and who are so generous with the methods of their art, I've been able to get back into this avocation of mine after about a thirty year absence. (Lots of stuff is new to me, and some is SO the same :roll: )
I've been going to many of the San Francisco AES section meetings lately, maybe I'll see some of you there.
--Frank
There are three limiters in the Lab Groupie: an RMS limiter, a peak limiter, and the proprietary "inter-sample voltage peak limiter" (ISVPL). I put this baby on the bench and all three work as advertised. (For what that thing cost, they should.) Using tone-burst test signals at various frequencies I observe the ISVPL doing a great job of limiting without crushing the first half-cycle.
Now my question: Since the ISVPL does such a great job, what's the purpose of the regular peak limiter? Is it just something that came along for the ride when they integrated the Lake, or am I missing something? In any case, I have it turned off (threshold set to max) and am happily relying on the ISVPL. I never push stuff that hard, so the ISVPL just sits there waiting for the occasional accident anyway.
Irrelevant personal stuff: This is my first post here. I've been lurking on that OTHER forum for the last three years or so. Thanks to all the great folks there, many of whom appear to be here now, and who are so generous with the methods of their art, I've been able to get back into this avocation of mine after about a thirty year absence. (Lots of stuff is new to me, and some is SO the same :roll: )
I've been going to many of the San Francisco AES section meetings lately, maybe I'll see some of you there.
--Frank