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Old 4th July 2012, 04:52 PM   #1
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Default Plate amp mod

Hello all,I don't know if this is the right section of the forum for this thread or not.I have an old subwoofer plate amp that I'd like to use for powering a pair of stage monitors for vocals and guitars.I can bypass the crossover by using the LFE input and run it full range(doesn't have the best extreme high Frequency response, but will work for the intended purpose) I'm going to remove the high level binding posts and add my xlr and 1/4" jacks in there location and just parallel the xlr input to the LFE input on the board.Here's where I need help anyone have any idea of the limiting resistor I'd need inline to drop the signal level. It's designed for consumer -4Dbv and my input will be pro level +10Dbv
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Old 4th July 2012, 04:57 PM   #2
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Consumer level is -10 and pro is +4.
Why not just put a volume control on the input?
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Old 4th July 2012, 05:00 PM   #3
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Default amp mod update

Guess I got my levels mixed up should be -10Dbv for consumer and +4Dbv for pro level.Any way I need to get to for +4Dbv down to -10Dbv
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Old 4th July 2012, 05:03 PM   #4
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It does have an input pot I just figured it would still over drive it,or have a very limited range of adjustment.Guess maybe I should have tried it first.
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Old 4th July 2012, 05:20 PM   #5
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That's what I would do. It may work just fine.
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Old 4th July 2012, 06:22 PM   #6
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The correct pro-audio level is +4 dBu not 4dbV!

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Old 4th July 2012, 06:27 PM   #7
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Quote:
Originally Posted by audiohead View Post
The correct pro-audio level is +4 dBu not 4dbV!

Art
Correct. I remember when the pro level was +8 dBm ... back in the vacuum tube days.
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Last edited by Frank Berry; 4th July 2012 at 06:31 PM.
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