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Old 4th April 2006, 06:50 PM   #1
freedom is offline freedom  Denmark
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Default Schematic Request: Behringer EP1500

Hi. NEEEEED HElp!

The rather odd design (for me at least) is puzzleing me - can't figure out precisely how it works - AND - i have a channel that doesn't work as it is supposed to. It says a little - but even low signal causes the amp to sound distorted and the clip LED flashes in rythm with the SIG LED and (as a result thereof) in sync with the music that is fed into the amp.

Do anyone have a schematic!? Please do help! :-)

Thanks in advance

Regards

Hans-Henning Terp-Hansen, Denmark
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Old 5th April 2006, 02:07 AM   #2
MGR is offline MGR
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Hi
You can go to QSC website and download the schematic for the RMX 1450,they are identical.


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Old 5th April 2006, 03:24 AM   #3
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Behringer's EP1500 is Clone of QSC RMX1850 in perfect way...
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Old 5th April 2006, 09:59 AM   #4
freedom is offline freedom  Denmark
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Default Case Closed - Thanks!

Hi everyone.

Thanks for the links. They are of great help!!!

Case is closed.

Kindest regards

Hans-Henning, Denmark
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Old 5th April 2006, 11:04 AM   #5
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Interesting! - presumably if Behringer had simply copied the QSC design they would be in deep legal trouble?, so it seems fairly likely that both Behringer and QSC buy the amplifiers from the original designer and manufacturer in China?.
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Old 5th April 2006, 11:21 AM   #6
freedom is offline freedom  Denmark
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Default Copy or not

Hi there

Fact is that the component markings (R5 C7 etc) are exactly the same. So is the connector numbering.

The Silkscreen markings matches the schematic as well.

Weather Behringer is copying or it is an OEM common product i do not know.

One could say that Behringer some years ago went through a lawsuit. They were acused for copying Mackie designs. From what I know Mackie either won the case or they made an "agreement".

If Behringer is copying again, I guess they prove to be stupid.

So I think, without being able to support it with anything, that Behringer has some sort of agreement.


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Old 5th April 2006, 11:27 AM   #7
Eva is offline Eva  Spain
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I guess that QSC has some kind of agreement with Chinese manufacturers, in which QSC benefits from even cheaper manufacturing of their designs while the Chinese companies benefit from producing and selling QSC designs on their own once they have been discontinued.
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Old 5th April 2006, 02:57 PM   #8
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Default Re: Copy or not

Quote:
Originally posted by freedom
Fact is that the component markings (R5 C7 etc) are exactly the same. So is the connector numbering.

The Silkscreen markings matches the schematic as well.

Weather Behringer is copying or it is an OEM common product i do not know.



Sounds like it's an OEM common product to me?, it's very common these days, many different companies buy OEM products made cheaply in China or elsewhere - I see no reason why QSC wouldn't?, and certainly none why Behringer wouldn't?.

Quote:

One could say that Behringer some years ago went through a lawsuit. They were acused for copying Mackie designs. From what I know Mackie either won the case or they made an "agreement".
From what I recall (and there's been a LOT about it on Usenet), Mackie lost the case as the Behringer mixer wasn't a copy at all, and only had a similar visual appearance.

They much more recently had to recall and redesign their new range of effect pedals, as they looked too much like Boss ones! - you had to look at the name to tell the difference!.

Personally I like the Behringer gear, it's keenly priced, performs well, and has proved reliable.

How do the QSC prices compare with the Behringer prices?, for the same unit manufactured in the same factory?.

BTW, I have a Behringer PMH880S and BX1200, does anyone have circuits for them?, or links to a 'similar' unit - certainly the BX1200 is a visual 'copy' of a Hartke model.
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Old 6th April 2006, 10:20 AM   #9
djk is offline djk
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What about the EP2500?

It looks quite different inside than an RMX2450.
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Old 2nd July 2006, 11:40 PM   #10
AKN is offline AKN  Sweden
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Quote:
Originally posted by Workhorse
Behringer's EP1500 is Clone of QSC RMX1850 in perfect way...

Quote:
Originally posted by djk
What about the EP2500?

It looks quite different inside than an RMX2450.

Isn't Behringer EP1500 equal to QSC1450 and
Behringer EP2500 equal to QSC1850?

Behringer manual says class AB for EP1500 and that is the case in schematic of QSC1450 and class H for EP2500 as in schematic of QSC1850.
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