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CAPI 511_1-8-XLR Back Panel
CAPI 511_1-8-XLR Back Panel
$22.35
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VP-Gainswitch Bundle
[VP-GS-Bundle]
 $23.00 
Number of Product Bundles in stock: 37

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The VP-Gainswitch Bundle is a complete kit of parts required to add a stepped gain switch mod to any of our mic preamps. This mod will easily work with any of our older mic preamps. Simply desolder and remove the Bourns pot and install the two jumper wires shown from the VP-Gainswitch PCB to the main PCB. This product bundle will create an equivalent to a 25k CCW log pot, which is perfect for an API style mic preamp circuit.

This bundle now includes a custom Grayhill switch with a full round shaft.

With this bundle, you can expect the following 12 gain steps:
+25.39dB
+29.53dB
+33.48dB
+36.46dB
+39.52dB
+42.52dB
+45.45dB
+48.44dB
+51.48dB
+54.46dB
+57.48dB
+60.43dB

From my tests, the actual gain may vary a little but should not differ more than +/- 0.1dB. The above measurements where taken from a VP26 preamp loaded with a gar2520. This preamp did have the t-pad attenuator installed. An Audio Precision Portable One Plus was the test instrument.

Additional photos:

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This product bundle contains the following items:
VP-Gainswitch PCB» 1 x VP-Gainswitch PCB
   37 pieces in stock
  $2.50
VP-Gainswitch Resistor Set» 1 x VP-Gainswitch Resistor Set
   4417 pieces in stock
  $1.50
Grayhill 1x12 Fixed Stop, Shorting Rotary Switch, Round Shaft» 1 x Grayhill 1x12 Fixed Stop, Shorting Rotary Switch, Round Shaft
   261 pieces in stock
  $19.99

Cost of separate items: $23.99

Your savings: $0.99
This product was added to our catalog on Monday August 08, 2011.
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Curative Notice
Classic Audio Products, Inc. is not affiliated with API. Customers and fans should not refer to Classic Audio Products, Inc. as "Classic API." API is a registered trademark of Automated Processes Incorporated. Classic Audio Products, Inc. has no affiliation with Automated Processes Incorporated.
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