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2nd September 2009, 09:43 AM
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#1 |
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diyAudio Member
Join Date: Feb 2002
Location: Italy
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BEHRINGER EP1500 frequency response
Hello to all,
I'm just doing some simulations using the EP1500 schematic that can be found on the net, and the AC analysis shows a frequency response that start dropping considerabily at 100Hz I attached the graph of the AC analysis I think it can be due to the double .15uF cap in series before the OP-Amp that drives the output stage, as You can see in the other attached image Does anyone of You have a frequency response graph of the behringer in order to check it? Or, could it be tha the values of the two .15uf caps reported in the schematic are wrong? Thank You Very Much |
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2nd September 2009, 09:50 AM
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#2 |
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diyAudio Member
Join Date: Feb 2002
Location: Italy
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Sorry for the wide distribution ...
I just found that the 2 .15uf caps are part of the low-cut filter connected to one of the switches: bypassing them as per the circuit the response is now flat and dominated by a 10uF cap |
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