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Topic: Unbalanced loads on QSC amp
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John Gordon
Film Handler
![](http://www.film-tech.com/ubbmembers/523.jpg)
Posts: 62
From: Earth
Registered: Jul 2000
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posted 05-23-2001 03:30 PM
Hello Mike, As stated in the comments above, you can run two different loads on the 1400 amp. As Gordon stated, it is done all the time.There is a caution though, and that is be sure not to underpower your room. As per your questions, yes wiring two 8 ohm drivers in parallel will yield a 4 ohm load. The power rating of the 1400 at 4 ohms is about 400W. Make sure this will be enough power for your configuration. Using a target goal of 113dB SPL (+20dB above headroom) for center of auditorium, free field calculation shows no larger than a 40 foot room (length). What is the size of your room? ------------------ John Gordon Cinema Applications Engineer QSC Audio Products, Inc. 1675 MacArthur Blvd. Costa Mesa, CA 92626 (714) 957-7100 john_gordon@qscaudio.com http://www.qscaudio.com
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