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Old 22nd November 2014, 12:54 PM   #1
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Question Looking for amps for active xover

I'm looking to make 4 diy amps for a 3 way active xover, for bass I have Erno Borbely 75W RMS Class A power amps, for the mids & highs amps I want also Class A but without negative feedback gain X20, if possible pcb available GB or diyAudio Store.
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Old 23rd November 2014, 02:08 PM   #2
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Normally I would suggest you the Alpeh J, but input JFets are rather expensive at diyAudio store.....
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Old 23rd November 2014, 03:30 PM   #3
hm4nine is offline hm4nine  Europe
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I agree with cobjulia.
Fortunately you need 8 pcs. for 4 amps, which brings costs down to USD 12,-/pair.
With 8 pcs. you have also the chance for some matching.
Matched power devices I would order from h_a, member of this forum.
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Old 23rd November 2014, 03:36 PM   #4
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There is a GB to buy PCBs?
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Old 23rd November 2014, 06:01 PM   #5
hm4nine is offline hm4nine  Europe
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Why waiting/looking for a GB?

2 boards cost USD 25,- at diyaudio-store.
4 boards and 8 JFets will cost you approx. USD 100,- without shipping.
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Old 23rd November 2014, 06:19 PM   #6
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Thanks
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