Sound Devices, LLC - Portable, Professional Audio

T-power, also known as Parallel, A-B, or Tonaderspeisung powering, was one of the original techniques used to power condenser microphones remotely from mixing consoles. It uses the microphone cable as the power conductor, eliminating the need for batteries or external power supplies. Phantom powering has effectively displaced T-powering as the standard microphone powering technique. (more…)

Most Sound Devices mixers, amplifiers, and recorders have external DC inputs. These inputs can be used with AC transformers (and switching power supplies) to provide power for their operation. The 302, 442, HX-3, MixPre, and MM-1 can be powered from external DC sources with voltages ranging from 5 to 18 volts. The 702, 702T, 722, and 744T can run on external voltages from 10 to 18 VDC. (more…)