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GAIN Mic Pre / Makeup Amp Kit

GAIN Mic Pre / Makeup Amp Kit
  • Click to enlarge
Opamp sockets (Required)
Opamp (Required)
Output Transformer (Required)
Power Supply (Required)

$49.50AUD inc GST for Australian Customers
(Approx $30.20USD outside Australia)
Change currency to see all prices including options in your preferred currency.

(Quantity discounts available)


Product Information
Quantity Discounts
Stock Level26

GAIN is a gain block that with an input transformer can be used as a mic pre or unbalanced in as a makeup amp. It only needs a 48vdc power rail to run. From this, it supplies the opamp with +/-12vdc to +/-24vdc set by a trimpot, as well as supplying 48v for phantom power. Opamp voltage is set by one trimpot. The PCB can take several normal dual DIP8 opamps or DOA discrete 1.1" opamps with standard 990 / 2520 pinout. This kit is even easier to build as no power supply has to be built if using our prebuilt external 48v 25W & 40W SMPS which can run up to 8 or more GAIN kits and runs on any mains voltage in the world.

Opamps the GAIN PCB can take basically any Dual DIP8 and 2520/990 pinout DOA opamp directly. Like below

  • JLM99v, Twenty 5 Twenty, 990A+, Flick SMD, Hybrid SMD, 990C, 992, 993. (Set trimpot to 48v (+/-24vdc).
  • NE5532A, OPA2134 (Set trimpot to 36v (+/-18vdc).
  • 2520, 1731, LM833 (Set trimpot to 32v (+/-16vdc).

GAIN PCB Size 50mm (2") x 50mm (2")

You can save money on this item when you purchase several at a time. The table below shows the minimum quantities required to benefit from this offer, and how much they'll cost.


QuantityPrice per unit
1$49.50AUD
4+$48.40AUD
8+$47.30AUD
12+$46.20AUD

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