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Behringer EP2500 How to use - for a novice

post #1 of 123
8/29/08 at 8:09am
Thread Starter 
In my research I have realized that the information for this commonly used amp is all over the place.
I thought, perhaps niavely, that the experienced guys could fill this thread with the common connections/set-ups for this amp.
Discussing any mods that are commonly done, like the fan mods, filters, etc.

A novice/beginner can be easily overcome by all the information and not be able to make heads or tails of it.

Perhaps this thread can be a sort of FAQ or User Guide. One can include parts names and possibly where to find them.
Seems as though most here would love to see people jump in the DIY ring, but I can tell you experienced guys that it is daunting and something like this could really help!

Thanks to anyone in advance who is so kind as to offer their help and knowledge on this amp.
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post #2 of 123
8/29/08 at 9:14am
DIP Switch Configuration for EP2500 set up for bridged mono mode

1 - Right
2 - Left
3 - Right

4 - Left
5 - Left

6 - Right
7 - Right

8 - Right
9 - Left
10 - Left (It mentions: "Switch off the input 2 clip limiter and filter" in bridge mode on back of amp in top left corner)

Also make sure the Input 2 attenuator is turned down completely.
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post #3 of 123
8/29/08 at 10:22am
Thread Starter 
http://www.edesignaudio.com/gallery/529_large.gif
http://www.edesignaudio.com/gallery/528_large.gif
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post #4 of 123
8/29/08 at 10:26am
To connect the LFE output of a receiver to a pro amp, use one of these adapters and an RCA cable of your choice:

http://www.fullcompass.com/product/297984.html

If you're having ground issues and you want to life the ground you can use a Direct Box with RCA inputs, such as this:

http://www.fullcompass.com/product/265769.html

-----------------------

Fan Mod:

http://www.hometheatershack.com/foru...er-ep2500.html
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post #5 of 123
8/29/08 at 10:35am
Thread Starter 
How do I connect the eQ.2 in the middle?

I'm guessing RCA - RCA, then from eQ.2 RCA to XLR to the EP2500?(is an xlr the same as a TS adapter?)
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post #6 of 123
8/29/08 at 10:50am
XLR isn't the same as TS/TRS adapter.

XLR is the bigger round one with three pins, TS/TRS are the 1/4" diameter connections that resemble headphone plugs.
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post #7 of 123
8/29/08 at 10:53am
Thread Starter 
Being that the EP2500 has both types of inputs, Icould use either, correct?(no difference?)

Thanks so much for walking me through this guys!!!
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post #8 of 123
8/29/08 at 10:57am
RCA to XLR is the best way to go vs a RCA to 1/4" TS adapter


Best solution=
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post #9 of 123
8/29/08 at 11:05am
The important part is that the S is not conected to -siginal, USE A TRS connector if you go 1/4"

YOU NEED #18 IF YOU GO 1/4"
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post #10 of 123
8/29/08 at 11:07am
Quote:
Originally Posted by NEO Dan View Post

RCA to XLR is the best way to go vs a RCA to 1/4" TS adapter


Best solution=

Why would RCA to XLR be any better then RCA to 1/4" TS?
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post #11 of 123
8/29/08 at 11:16am
Ground loop hum
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post #12 of 123
8/29/08 at 11:22am
compaired to RCA to TS the RCA to XLR or TRS are much less likely to introduce a ground loop hum into the system.
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post #13 of 123
8/29/08 at 11:45am
Thread Starter 
I just realized that I actually have an RCA to TS( i think-has a headphone end) from my computer to my AVR...I get horrible noise on that line, just aweful.
That was going to be my next project, to try to solve that.

So I will be getting two rca cables and a single XLR adapter...plus 35' of 12 guage speaker wire and some solder.

Thanks so much guys!!! Invaluable!
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post #14 of 123
8/29/08 at 2:27pm
that awfull noise is why I was making all the fuss, LOL

TRS and XLR are your friends
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post #15 of 123
8/29/08 at 2:29pm
Best low cost solution for your PC to AVR issue, go optical
http://www.turtlebeach.com/products/micro/home.aspx
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post #16 of 123
8/29/08 at 3:46pm
Dan is right,

I currently have a RCA to 1/4" and I hear this ground hum. I isolated the source of the hum to the unbalanced signal. I am waiting for monoprice.com to release the RCA to XLR cable. The date of its release is in a few days -> 8/31.

If the ground hum continues, I will get this device to balance the signal and the upside is boosting the line to prosound level:

http://www.rackmount-devices.com/002-8485.html
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post #17 of 123
8/29/08 at 4:57pm
Quote:


I currently have a RCA to 1/4" and I hear this ground hum. I isolated the source of the hum to the unbalanced signal. I am waiting for monoprice.com to release the RCA to XLR cable. The date of its release is in a few days -> 8/31.

You still need to know the specifics of the cable. Whether it's XLR or TRS, you want two wires surrounded by a shield that's only connected at one end like Dan's pics show. If they build it with a simple coax wire, one wire and a shield, and connect (-) to the shield at the TRS or XLR connector, you will have all the same ground loop problems as an RCA-TS cable. Edit: even if they use two wires plus a shield, it fails if they connect the shield at the RCA end. Seems like you almost have to build it yourself to make sure it's right. Cut a TRS cable in half and solder RCAs on the ends like Dan's pic. If you buy one, make sure you can return it and check it out with an ohmmeter.
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post #18 of 123
8/29/08 at 5:29pm
Thread Starter 
And what if those pictures are foreign to me and I don't know where to get one that is reliable from the factory....what would you advise?
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post #19 of 123
8/29/08 at 5:37pm
order the parts from parts express & DIY for the win

or paypal me and i'll build it up
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post #20 of 123
8/29/08 at 6:23pm
Thread Starter 
Dan....PM sent.
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post #21 of 123
8/29/08 at 8:24pm
Quote:


or paypal me and i'll build it up

Make 10 more
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post #22 of 123
8/29/08 at 10:40pm
And a few more if I'm gonna need them too!
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post #23 of 123
8/29/08 at 11:27pm
lol. Poor Dan. You guys better give him a good tip.
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post #24 of 123
8/30/08 at 1:18am
Quote:
Originally Posted by E-A-G-L-E-S View Post

I just realized that I actually have an RCA to TS( i think-has a headphone end) from my computer to my AVR...I get horrible noise on that line, just aweful.
That was going to be my next project, to try to solve that.

So I will be getting two rca cables and a single XLR adapter...plus 35' of 12 guage speaker wire and some solder.

Thanks so much guys!!! Invaluable!

Don't use speaker wire! Use 2 conductor, shielded cable. Belden mic cable is a good choice. Speaker wire is not shielded, you will lose all shielding properties and won't get any noise protection. Especially with a 35' cable.
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post #25 of 123
8/30/08 at 3:47am
Here's my DIY XLR to RCA. I used Dayton Mic cable and Dayton connectors.
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post #26 of 123
8/30/08 at 7:07am
Thread Starter 
Quote:
Originally Posted by XanderMoser View Post

Don't use speaker wire! Use 2 conductor, shielded cable. Belden mic cable is a good choice. Speaker wire is not shielded, you will lose all shielding properties and won't get any noise protection. Especially with a 35' cable.

So no speaker wire from amp to enclosure?
Beldin mic cable??
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post #27 of 123
8/30/08 at 9:09am
Yes , microphone cable is the correct cable to use for DIY 1/4 to RCA or XLR to RCA (like the ones I made). Mic cable has 2 insulated conductors and an outer shield which is used to connect chassis grounds on balanced connections. The shield is not used on the RCA (unbalanced) end of the cable that connects to your avr LFE output
You will use speaker wire from amp to sub . Xander was referring to the fact that you dont use speaker cable to make your interconnects.
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post #28 of 123
8/30/08 at 9:18am
Quote:
Originally Posted by E-A-G-L-E-S View Post

So no speaker wire from amp to enclosure?

Yes, you will still need that. I think there talking about the input cable. You will still need speaker wire to go from the amp to the driver itself.
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post #29 of 123
8/30/08 at 10:19am
As a temporary thing, I built my cables out of CAT5 just to get things hooked up one night. That's been more than a year ago now and noise has never been a problem. The cable however, doesn't fit the connectors very well (too small in dia.), so I will later build them correctly with the right cable.
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post #30 of 123
8/30/08 at 10:25am
re: the ground loop hum, several people have complained about that with the AudioSource AMP300 as well. I'm hoping to get one of those the next time they go on sale at the Fry's here in Austin. (They're on sale in Silicon Valley for a song this weekend!)
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AVS › AVS Forum › Audio › DIY Speakers and Subs › Behringer EP2500 How to use - for a novice