Palmer PDI 06 L 08 - Power attenuator 8 ohm

The PDI06 is a power attenuator for live use. The unit is connected between the amplifier output and the speaker cabinet. It lets you use the popular power amp overdrive of valve amplifiers while reducing the associated high volume. This enables practical volume reduction in six steps from 100% down to 18% for the stage and rehearsal room. An additional setting switches the speaker off completely; the PDI06 then works as a LOAD BOX and absorbs the amplifier’s entire output power.

This operating mode is useful, for example, when connecting an amplifier with speaker cabinet emulation directly to the mixing console via an existing line-out, and high volume levels in the recording booth are undesirable. The unit has one input for the speaker signal from the amplifier and two outputs for connecting speaker cabinets.

The total impedance of the speakers must match the value specified on the PDI06. For example: the outputs of a PDI06 specified for 8 ohms can be connected to one 8-ohm cabinet or two 16-ohm cabinets (the 16-ohm version has only one output). The output of the (valve) amplifier is also set to 8 ohms.