miniDC Isolator

12V DC to DC isolator for noisy power supply environments. REM in/out capabilities. This unit is compatible with miniDSP 2x4 and 2x4balanced.
15 USD
  • Description
  • Reviews

miniDC isolator is a tiny board allowing a perfect system integration with power on/off of your DSP and amplifier system. Based on a DC-DC isolated converter and delay circuit, it allows you remote turn ON/OFF in the correct order. This board is especially recommended for car audio application to allow complete isolation of the alternator noise. Compatible with miniDSP 2x4, 2x4 Balanced.

The below diagram illustrates the timing relationship between Vin, Vout, REMin and REM out pins. When the remote input (REM in) goes high (above 5V), the device will the isolated 12V output immediately (no delay). The remote output (REM OUT) is delayed by 3 seconds to allow for the DSP to settle before amplifiers are turned on. Once the remote input (REM in) signal goes low, the remote output goes immediately low to turn the amplifier off first. The isolated 12VDC out will be delayed to turn the miniDSP last.

miniDC timing

STOCK Status (23/07/2018): miniDC is now back in stock. Thanks again for your patience!

Technical Specifications

- 12V DC to DC isolation compatible with miniDSP unbalanced and balanced units
- Wide 10-18V input range
- 1500V isolation
- Short circuit protection
- Delayed +12V remote out

NOTE: This product is not compatible with the miniDSP 2x8/8x8 platforms since it does not have enough power. These two platforms are powered by


miniDC Isolator Datasheet

Thursday, 02 May 2019
took me 10 min to install it - works as advertised in delay startup of amps and most importantly killed a very annoying alternator noise by 95% - I only hear it with vol at max but very very faint... very very happy with this product
Glynn Tillery