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RDL Stick-On Series STA-1 Dual Channel Electronic Transformer/Line Amplifier, -12 to 20 dB Gain

SKU: RDSTA1 MFR: STA-1
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Key Features

  • Achieve pristine audio with this low noise RDL line amplifier for studio clarity.
  • Dual channel transformer offers balanced/unbalanced configurations for versatile connectivity.
  • Fine-tune your sound with adjustable gain, from -12 to 20 dB, for optimal audio levels.
  • Enjoy wide frequency response (DC to 25 kHz) ensuring accurate sound reproduction.
  • Use this durable unit to eliminate ground loops & reduce hum in your recording setup.
  • Compact design integrates easily into any studio, enhancing value without taking space.
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Special Order?Estimated to Ship: 08/15/2025
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RDL STA-1 Specifications

  • Amps per STA-1

    2 identical circuits (stereo or dual mono operation)

  • Gain

    20 dB (adjustable, separate controls for each channel)

  • Input Impedance

    10 kOhms bridging

  • Input Configuration

    Balanced or unbalanced

  • Output Impedance

    200 Ohms balanced (drives 600 Ohms or 10 kOhms lines)

  • Output Configuration

    Balanced or unbalanced

  • Frequency Response

    Dc to 25 kHz (+/- 0.25 dB)

  • THD+N

    <0.03%

  • Output Level

    +4 dBu

  • Headroom

    18 dB (at rated output of +4 dBu)

  • Noise

    <-75 dB (referred to +4 dBu)

  • CMRR

    -50 dB to (50 to 120 Hz)

  • Crosstalk

    Better than 75 dB

  • Ambient Operating Environment

    0 to 55 deg. C (32 to 131 deg. F)

  • Power Requirement

    FLOATING, 24 Vdc at 50 mA

  • Dimensions (WxDxH)

    3 x 0.65 x 1.55" (7.62 x 1.65 x 3.94cm)

  • UPC Code

    813721010971

About RDL STA-1

With its robust design and advanced technology, the Stick-On Series STA-1 Dual Channel Electronic Transformer/Line Amplifier is a high-quality, reliable choice for audio professionals and enthusiasts alike. This versatile device functions as both an electronic line transformer and a line amplifier, offering adjustable gain or loss and low-impedance outputs.

Each of the two identical circuits in the STA-1 is engineered to provide superior audio clarity, high common-mode rejection, ultra-low distortion, and low noise, enhancing your audio experience. This dual-channel line-level preamplifier is equipped with bridging inputs, allowing for easy connection just like a pair of audio transformers with gain.

Ideal for most line amplification needs, the STA-1 is also adept at impedance or balanced/unbalanced conversion, making it a versatile addition to your audio setup. This unit operates from either floating or bipolar DC power, providing flexibility for various installation requirements.

Crafted by RDL, a trusted name in the audio equipment industry, the Stick-On Series STA-1 Dual Channel Electronic Transformer/Line Amplifier is a testament to the brand's commitment to delivering durable, high-quality audio solutions. Whether you're using it with speakers or headphones, this device is designed to amplify weak signals to a stronger level, ensuring optimal audio performance every time.

RDL STA-1 Features

  • Up to 20 dB Gain in an Audio Line
  • Conversion from Balanced to Unbalanced
  • Conversion from Unbalanced to Balanced
  • Conversion from High to Low Impedance
  • Conversion from Low to High Impedance
  • Bridge an Audio Line Feed
  • Precisely Match Audio Levels

Product Documents

User Manual

Key Features

  • Achieve pristine audio with this low noise RDL line amplifier for studio clarity.
  • Dual channel transformer offers balanced/unbalanced configurations for versatile connectivity.
  • Fine-tune your sound with adjustable gain, from -12 to 20 dB, for optimal audio levels.
  • Enjoy wide frequency response (DC to 25 kHz) ensuring accurate sound reproduction.
  • Use this durable unit to eliminate ground loops & reduce hum in your recording setup.
  • Compact design integrates easily into any studio, enhancing value without taking space.

What's in the box:

  • RDL Stick-On Series STA-1 Dual Channel Electronic Transformer/Line Amplifier
  • RDL 3 Year Limited Warranty