Sony DC78 Power Supply For Sony ECM88 Lavalier Mic

Our Item# DC78
Mfr# DC78
Power Supply For Sony ECM*Bc Series Lavalier Mics With 4pin Kmc Plug
List Price $122.00
Our Price $108.75
Available to Order Ships in ~7-10 business days

Product Notes


The DC-78 is a compact and in-line power supply for the Sony lavalier microphone range. It can be used to configure the popular ECM-44BC/77BC/88BC and ECM-90BC for use as wired microphones.

  • Designed for use with Sony lavalier microphones equipped with a Sony 4-pin (SMC9-4P) connector
  • Two-way powering: battery operation (using an AA-size (LR6) alkaline battery) or external DC operation (12 to 48 V)
  • Supplied with an SMC9-4S input connector and an XLR 3-pin output connector


The DC-78 allows 'wireless ready' Sony ECM microphones (such as ECM-44BC/77BC/88BC and ECM-90BC) to be converted for use as wired microphones. The DC-78 is a compact in-line unit, with a 4-pin socket for the ECM microphone, a AA battery compartment and an XLR output connector. The DC-78 provides the flexibility of additional working methods, for example the microphone can be easily switched between a wireless and wired modes.

Versatilite powering options

The DC-78 allows Sony ECM microphones to powered for wired use, either by the internal AA battery or an external 48volt phantom powering.

Compatible with Sony ECM microphones

The DC-78 can be used with any of the Sony ECM-xxBC microphones (such as ECM44BC, ECM77BC, ECM88BC and ECM90BC).

Compact size

DC-78 is small and light weight, making is convenient to use.

Long battery life

DC-78 uses a single AA size battery (LR-6 type), each battery typically providing an operating life of 5,000 hours (for example with an ECM-88B)


  • Power requirements
    • LR-6 alkaline battery (AA size)
  • Battery life
    • Approx. 5,000 hours
  • Input connector
    • 4-pin (SMC9-4P), compatible with ECM-44BC/77BC/88BC and ECM-90BC
  • Output connector
    • XLR-3-12C type
  • Dimensions
    • Diameter - 20mm
    • Length - 144mm
  • Weight
    • Approx. 130g (with battery)
    • Approx. 108g (without battery)