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RDL STP-1 Universal 2-Channel Audio Attenuator

SKU: RDSTP1 MFR: STP-1
$86.23
$114.97
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Key Features

  • Achieve optimal audio levels with the RDL STP-1, featuring adjustable attenuation for balanced lines.
  • Fine-tune your sound using the screwdriver trimming adjustment for precise audio control and clarity.
  • Enjoy versatile compatibility with HI-Z and LO-Z devices, perfect for diverse audio setups and needs.
  • Experience noise-free audio: the passive design of this attenuator eliminates unwanted power requirements.
  • Connect with ease using the terminal block, accommodating 14 to 24 gauge wire for secure audio links.
  • Ensure your audio stays pristine; this attenuator handles up to +35 dBV for high-quality sound output.
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Special Order?Estimated to Ship: 08/22/2025
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RDL STP-1 Specifications

  • Attenuation

    Hi-Z balanced line: Adjustable 1 dB to 85 dB
    Lo-Z balanced Line: Adjustable 5 dB to 35 dB
    Hi-Z unbalanced Line: Adjustable 1 dB to 85 dB

  • Nominal Impedance

    HI-Z 10 kOhms; LO-Z 600 Ohms

  • Adjustment

    Screwdriver trimming adjustment, 15 turns continuous

  • Circuit Type

    Passive modified H & T pads

  • Connections

    Terminal block accepts 14 to 24 gauge wire; no lugs required; input/output connection legend located on STP-1

  • 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

  • Ambient Operating Environment

    -20 to 60 deg. C (-4 to 140 deg. F)

  • Power Requirement

    Passive (not required)

  • UPC Code

    813721011268

About RDL STP-1

After careful design and engineering, the STP-1 Universal 2-Channel Audio Attenuator emerges as a versatile and efficient solution for precise audio control. This device features a pair of strategically placed attenuator pads, eliminating the need for labor-intensive calculations and assembly of fixed pads.

The STP-1 stands out in the market with its high pad attenuation of 50db, effectively reducing the volume of audio signals to meet your specific needs. This makes it an ideal choice for various audio applications, from recording studios and live sound setups to audio equipment testing scenarios.

One of the key features of the STP-1 is its multi-turn trimmers. These allow for meticulous adjustment of audio levels, eliminating the need for connecting jumpers or external resistors. This feature enhances the user experience by providing a seamless and straightforward way to control audio signals.

The STP-1 Universal 2-Channel Audio Attenuator is not only efficient but also versatile. It operates effectively in both high and low impedance circuits and can be used in balanced or unbalanced setups. This adaptability makes it a universal solution for a wide range of audio applications.

For easy installation, the STP-1 comes with a wiring legend printed directly on the case. This thoughtful design detail simplifies the setup process, making it user-friendly even for those new to audio equipment.

In conclusion, the STP-1 Universal 2-Channel Audio Attenuator is a high-performing, adjustable, and universal audio control device designed to deliver precise and effective audio signal attenuation.

RDL STP-1 Features

  • 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

Key Features

  • Achieve optimal audio levels with the RDL STP-1, featuring adjustable attenuation for balanced lines.
  • Fine-tune your sound using the screwdriver trimming adjustment for precise audio control and clarity.
  • Enjoy versatile compatibility with HI-Z and LO-Z devices, perfect for diverse audio setups and needs.
  • Experience noise-free audio: the passive design of this attenuator eliminates unwanted power requirements.
  • Connect with ease using the terminal block, accommodating 14 to 24 gauge wire for secure audio links.
  • Ensure your audio stays pristine; this attenuator handles up to +35 dBV for high-quality sound output.

What's in the box:

  • RDL STP-1 Universal 2-Channel Audio Attenuator
  • RDL 3 Year Limited Warranty