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Author Topic: CP650 public address Anhtu Vu Film Handler Posts: 98 From: Montreal, Quebec, Canada Registered: Jun 2013 posted 08-15-2013 06:34 PM                     I just installed a CP650/DMA8+ with a new QSC speaker's system in our cinema room. Everything works and sounds pretty good so far and i have not even calibrated the QSC yet. Does anyone knows if the public address on the CP650 has automatic limiter preset in the chain. It seems like it has very little headroom.  |  IP: Logged Jim Cassedy Phenomenal Film Handler Posts: 1661 From: San Francisco, CA Registered: Dec 2006 posted 08-15-2013 09:40 PM                     I don't think the CP-650 has any type of processing on the microphone input. I've always used an external limiter & feedback filter. Is it possible you're over-driving the input? I know you can set the non-sync input levels on the set-up menu, but I don't recall there being any way to adjust the microphone input level. (but I could be wrong)  |  IP: Logged Louis Bornwasser Film God Posts: 4441 From: prospect ky usa Registered: Mar 2005 posted 08-15-2013 09:54 PM                        Might also have the phantom power on.  |  IP: Logged Carsten Kurz Film God Posts: 4340 From: Cologne, NRW, Germany Registered: Aug 2009 posted 08-16-2013 02:47 AM                     quote: Anhtu Vu Does anyone knows if the public address on the CP650 has automatic limiter preset in the chain. It seems like it has very little headroom. What did you connect to it and how? - Carsten  |  IP: Logged Steve Guttag We forgot the crackers Gromit!!! Posts: 12814 From: Annapolis, MD Registered: Dec 1999 posted 08-16-2013 12:05 PM                     I believe you'll find that the MIC input on the CP650 is one of the few places left where one needs a tweaky tool (flip down the front panel). Other than level, there is no processing in the CP650.  |  IP: Logged Tony Bandiera Jr Film God Posts: 3067 From: Moreland Idaho Registered: Apr 2004 posted 08-16-2013 12:12 PM                     Carsten asked a critical question: What is connected to it and how? You MUST connect a microphone with balanced inputs (XLR) or a mic with a matching transformer. DO NOT connect any mixers, preamps or other signal processing to that input. Also, you cannot use the rear panel XLR and the front panel DB9 "Mic Mux" connectors at the same time. Finally, if the sound is "tinny", lacking bass and dynamic range, you may have a bad mic cable with one line open.  |  IP: Logged

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