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Old Jul 10, 2018 | 08:47 AM
  #21  
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Originally Posted by Adenton528
This is my $0.02. Call Arc. Ask for some help. The guys there know their stuff and have always been super helpful. Knowing that you've got at least a grand invested in this, they will certainly get you headed down the right path. You shouldn't need a line leveler. They're gonna ask if you have their harness for high level inputs. Listen to them. They'll get you pointed in right direction. Their website has a tech support phone number. Use it to your advantage. Bypass your tech who obviously doesn't know what he's doing. That setup is tailor made for each other and should be very simple to diagnose over the phone with them.
+1. Agree!



 
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Old Jul 10, 2018 | 11:27 AM
  #22  
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Originally Posted by cpbedor
+1 on no line leveler in front of the DSP.
I knew no line leveler in front of a dsp, this poster has no psm.
 
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Old Jul 10, 2018 | 11:30 AM
  #23  
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Originally Posted by Adenton528
If you talk to Arc, they'll tell you not to use one. They'll tell you to use their high level Input harness with resistors in it. And to be honest, I had better luck with that route. It provided more consistent sound for me.

See, I love this place. I learn something new all the time. Arc never told me that back then, but then again I had the BT355 first.
 
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Old Jul 10, 2018 | 11:34 AM
  #24  
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Originally Posted by Dsm Limited
I knew no line leveler in front of a dsp, this poster has no psm.
Well in his first post he said he has one ?
 
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Old Jul 10, 2018 | 11:37 AM
  #25  
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Sorry musta missed it...
 
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Old Jul 10, 2018 | 11:46 AM
  #26  
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Originally Posted by cpbedor
Well in his first post he said he has one ?
There's actually 2 posters in this thread with the 600.4. One (OP) has a PSM the other doesn't and doesn't have the BT355 either.
 
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Old Jul 10, 2018 | 12:19 PM
  #27  
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Originally Posted by SBates08
There's actually 2 posters in this thread with the 600.4. One (OP) has a PSM the other doesn't and doesn't have the BT355 either.
Correct I (the 2nd poster) have neither the PSM or Line Leveler. The OP has the PSM. So which do I need the PSM or Line Leveler? Or neither?
 

Last edited by cash64; Jul 10, 2018 at 12:27 PM.
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Old Jul 10, 2018 | 12:21 PM
  #28  
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When I installed a psm on mine I used speaker lines in. The radio cut out at half volume. Added a pac35 in front of the psm and problem solved. Arc claims some radios will cut out if they don’t see a load.
 
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Old Jul 10, 2018 | 02:54 PM
  #29  
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Originally Posted by InthewindMN
When I installed a psm on mine I used speaker lines in. The radio cut out at half volume. Added a pac35 in front of the psm and problem solved. Arc claims some radios will cut out if they don’t see a load.
You're correct about the radio needing to see a load. The arc harness has resistors in it which creates the necessary load the radio needs to function.
 
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Old Jul 10, 2018 | 03:24 PM
  #30  
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I understand the resistors take care of the radio seeing a load, but do they flatten out the Boom Eq curve as well? Is that eq curve not as drastic as we once believed ?

Is that why arc says a LL is not required m
 

Last edited by Dsm Limited; Jul 10, 2018 at 03:34 PM.
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