Moderators Youthman Posted August 3, 2015 Moderators Share Posted August 3, 2015 I have the opportunity to purchase a pair of Klipsch KP-4000 for $240 for the pair. They look to be in great condition. My guess is I need to be on the road but since I'm unfamiliar with these, I need some advice. Our children's pastor at our church would like some more bass for the children's ministry room. It's around 25' x 25'. He's using a small powered mixer that is feeding a pair of Peavy 2-way speakers each with a 15" woofer. I told him a single 18" active sub (Mackie, JBL etc) should provide plenty for that room. Today I came across the pair of KP-4000. We would need an amp but maybe I could sell one of the speakers and use that money for the amp. Thoughts? Quote Link to comment Share on other sites More sharing options...
Moderators Youthman Posted August 3, 2015 Author Moderators Share Posted August 3, 2015 (edited) I messaged Michael Colter to see what he thinks. I even saw this thread where bhendrix used them under LaScalas....hmmmm.....LOL Here is a photo of them Edited August 3, 2015 by Youthman Quote Link to comment Share on other sites More sharing options...
jjptkd Posted August 3, 2015 Share Posted August 3, 2015 I had a pair for awhile and thought they worked great matched up with my KP 250's. Two things: 1, they need a lot of power to sound good, 500 watts RMS Minimum from what I found. 2, they really aren't "subs" but more like lower frequency "woofers," perfect for filling in the lower mid bass for monitors from about 40hz- 100hz. They give weight to vocals and instruments and such but not like an actual subwoofer would. I sold mine pretty fast for $300 for the pair. Hope this helps. Jesse Quote Link to comment Share on other sites More sharing options...
Moderators Youthman Posted August 3, 2015 Author Moderators Share Posted August 3, 2015 Thanks for the info Jesse. Here are a few photos of the room and the equipment. The current mixer is pretty small so it may not be near enough to handle all four speakers Peavy PR15 powered by a Yamaha EMX512SC Powered Mixer Quote Link to comment Share on other sites More sharing options...
Moderators Youthman Posted August 3, 2015 Author Moderators Share Posted August 3, 2015 Here is the amp specs Power output from all models is quite impressive: 500W + 500W from the EMX512SC It has Main + Monitor outputs. Would that work? Quote Link to comment Share on other sites More sharing options...
Moderators Youthman Posted August 3, 2015 Author Moderators Share Posted August 3, 2015 Front and back of the mixer. Do the KP 4000 have a built in crossover? Quote Link to comment Share on other sites More sharing options...
jjptkd Posted August 3, 2015 Share Posted August 3, 2015 I believe they have passive networks with a high frequency pass through. You can hook the amp to the subs and then run a cable from the subs to the monitors. I tried a few different amps with mine and they really needed good clean power, otherwise they sounded loose and floppy. Juiced up they actually produce pretty nice bass, "Chorus" like, chest thumping bass. I tried my Sunfire amp at first with 200 watts to each sub and honestly it sucked. Then I tried a pair of Carver A-400x amps bridged, one to each sub @ 500 watts each. They sounded OK with those amps but you could tell when you turned them up that they were still lacking. I picked up a Samson SX-2400 @ 550 watts per channel and WOW, they really came to life. I would suspect that anyone who has tried these and did not like them probably didn't have enough power going to them, at least that was my experience. Here's a spec sheet: Quote Link to comment Share on other sites More sharing options...
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