Home » Sponsored » Pi Speakers » Does "Affordable" And "Power Amps" Fit In The Sentence????
Does "Affordable" And "Power Amps" Fit In The Sentence???? [message #48308] Thu, 24 November 2005 18:15 Go to next message
Don17 is currently offline  Don17
Messages: 20
Registered: May 2009
Chancellor
Hey Guys!!


I hope eveyone's having a great Thanksgiving with their families.I am a college student as well as a Part time sound engineer.
I have a custom-built JBL sound system that requires tri-amping with an external electronic crossover. I've been looking all over for a good amp that packs plenty of power, and at the same time, is affordable enough to buy 3 or 4 units to get the speakers powered up.
I am deeply troubled because I have stumbled upon the Berhringer EP 2500 power amplifire (500wx2@8ohms, 750wx2@4ohms, 1200wx2@2ohms). It seems very powerful and affordable too. I'm tempted to buy it, but i want to make sure that it would be a good investment to have my sound company start out with. I just want to know what your opinions are as far as this amp goes.

Thanks in advance!
-Don

Re: Does "Affordable" And "Power Amps" Fit In The Sentence???? [message #48309 is a reply to message #48308] Thu, 24 November 2005 22:50 Go to previous messageGo to next message
Chris R is currently offline  Chris R
Messages: 133
Registered: May 2009
Master
Hi Don,
I have one of these, and I'm no pro, but I can say that many people on the rec.audio.pro news group accept these are decent low end (as pro equipment goes) amps. No real problems reported. The one I have will certainly drive loud and clean. A guy I trust doesn't recommend 2 ohm stereo, 4 ohm bridged loads, so consider that. They are comparable to QSC RMX2400's.
Chris

Re: Does "Affordable" And "Power Amps" Fit In The Sentence???? [message #48310 is a reply to message #48309] Fri, 25 November 2005 00:17 Go to previous messageGo to next message
Paul C. is currently offline  Paul C.
Messages: 218
Registered: May 2009
Master
You DON'T need the same power amps all of the system.

For example, if your woofer amps are 100 w/ch, your mid amps could be 30 w/ch, and tweeter amps could be 10 w/ch... and your woofer amp would still clip before your tweeter amp.

90% of the power in music is below 500 hz... or more.

Re: Does "Affordable" And "Power Amps" Fit In The Sentence???? [message #48311 is a reply to message #48310] Fri, 25 November 2005 15:02 Go to previous message
Paul C. is currently offline  Paul C.
Messages: 218
Registered: May 2009
Master
Here is an excellent paper on biamplification explaining the distribution of power, why smaller amps can be used for the upper frequencies.

http://www.hometheateraudiocontrol.com/FAQ_detail.asp?id=1666

"Crossovers and Biamplification"

also

http://www.hometheateraudiocontrol.com/FAQ_detail.asp?id=1667

"Crossover Networks from A to Linkwitz-Rielly"

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