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Universal Audio Attenuator


  • Audio Level Attenuation
  • Adjust Audio Level into Equipment
  • Preset Audio Levels
  • Precisely Match Audio Levels
  • Increase Audio Input Headroom
  • Two Adjustable Attenuators in One Package

APPLICATION: The STP-1 is a pair of convenient attenuator pads that can be located at the precise location that attenuation is needed. The low-cost STP-1 eliminates the costly labor of figuring and assembling fixed pads. Multi-turn trimmers in the STP-1 permit precise adjustment of levels without the need to connect any jumpers or external resistors.

The STP-1 operates in either high or low impedance, balanced or unbalanced circuits.

The wiring legend is printed on the case for easy installation.

Part # Description Get Quote
RDL-STP-1 Universal Audio Attenuator - 2 Channel



Nominal Impedance:

HI-Z 10 kΩ; LO-Z 600 Ω


Screwdriver trimming adjustment, 15 turns continuous

Circuit Type:

Passive modified H & T pads


Terminal block accepts 14 to 24 guage wire; no lugs required;

input/output connection legend located on STP-1

Maximum Signal Inputs

HI-Z Balanced Line:

+33 dBu, 35 V rms

LO-Z Balanced Line:

+27 dBu, 18 V rms

HI-Z Unbalanced Line:

+35 dBV, 45 V rms

Reference Levels:

Line level is +10 dBu to -10 dBu
Mic level is -45 dBu to -65 dBu



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