MPD inline attenuator

MPD inline attenuator

$15.00$43.00

SKU: MPD Category:

Description

The MPD inline attenuator can be configured as 12dB, 18dB, or 24dB microphone level pads, a 12dB line matching pad (+4dBu to -10dBV), a 18dB or 24dB line-level pad, a 40dB line to mic level pad, a 620Ω load, or a polarity inverter.  Custom values for attenuation and input impedance are available on request.

Microphone level pads are intended for use with condenser microphones on loud sources. Microphone level pads have an input impedance of approximately 2KΩ and will thus pass phantom power with minimum voltage drop.  Maximum input level is +20dBV.

Line level pads have input impedance of 7KΩ or higher and are thus not intended for use between microphone and amplifiers, but rather between line level outputs and inputs.  Maximum input level is +30dBV.

The special 620Ω load version reduces effective input impedance of a microphone preamplifier for tonal options with dynamic microphones (620Ω load not recommended for use with condenser microphones or line outputs).  Maximum input level is +12dBV.

The MPD inline attenuator may be ordered in these formats:

  • XLR adaptor
  • XLR cable
  • XLR (female) to 1/4″ TRS (male plug) cable
  • XLR (female) to 1/4″ TS (male plug) cable (unbalanced)
  • dual XLR (female) to 3.5mm TRS miniplug cable (stereo)
  • XLR (female) to 3.5mm TRS miniplug cable (balanced)
  • 1/4″ TRS adaptor (balanced)
  • 1/4″ TS adaptor (unbalanced)
  • 1/4″ TRS (female jack) to 1/4″ TRS (male plug) cable (balanced)
  • 1/4″ TS (female jack) to 1/4″ TS (male plug) cable (unbalanced)
  • 1/4″ TRS (female jack) to XLR (male) adaptor
  • 1/4″ TRS (male plug) to XLR (male) cable
  • 1/4″ TS cable (male plugs)
  • 1/4″ TS (male plug) to XLR (male) balun adaptor with impedance-balanced output
  • 1/4″ TS (female jack) to XLR (male) balun cable with impedance-balanced output
  • RCA (male plug) to XLR (male) balun cable with impedance-balanced output
  • RCA to RCA cable (male plugs)

All MPD inline attenuators are directional balanced or unbalanced (balanced “U”; unbalanced “L” pads), except RCA or TS cables and TS or TRS adaptors, which are symmetrical unbalanced or balanced (unbalanced “T”; balanced “H” pads).

Dual XLR-F to 3.5mm miniplug (stereo) and XLR-F to 1/4″ TS plug cables are unbalanced; XLR-F pin 3 can be floating (not connected), which is the proper unbalanced wiring for active- or impedance-balanced outputs, or grounded, which is the proper unbalanced wiring for transformer-balanced outputs.

The MPD attenuators use precision 1% tolerance resistors, so matching between units will typically be within 0.1dB.

Additional information

Weight 0.15 lbs
Dimensions 4.5 x 2 x 1.3 in