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Radio Design Labs (RDL)

Our Expert-Guided Process

Choose Your System

Choose Your System

Start with the system that fits your application.

We Customize It

We Customize It

Our Sales Engineers fine-tune it for your needs and budget.

Install with Confidence

Install with Confidence

Professionally designed. Ready to perform.

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  • RDL DS-HA1A Format-A Stereo Headphone Amplifier RDL DS-HA1A Format-A Stereo Headphone Amplifier

    RDL DS-HA1A Format-A Stereo Headphone Amplifier

    The RDL DS-HA1A Format-A Stereo Headphone Amplifier is a two pair receiver and audio headphone amplifier compatible with RDL Format A twisted pair products. Each HA1A receives stereo audio and 24 Vdc power through a rear-panel RJ45 jack fed from a...
    MSRP: $241.33
    $181.00

    Usually arrives in 5-9 business days.

  • RDL RU-PA40D Stereo Audio Amplifier

    RDL RU-PA40D Stereo Audio Amplifier

    The RDL RU-PA40D Stereo Audio Amplifier is the ideal choice in many applications where a high quality, high-efficiency utility amplifier is needed to drive a pair of 4 Ω or 8 Ω speakers. It is specifically suited to amplification...
    MSRP: $492.91
    $369.68

    Usually arrives in 5-9 business days.

  • RDL D-J1 Microphone Input Assembly

    RDL D-J1 Microphone Input Assembly

    The D-J1 microphone input assembly is a complete microphone input panel assembly. Connections to the female front-panel XLR jack are made on a rear barrier block. Four terminals are provided: CASE GROUND, SHIELD (XLR pin 1), + (XLR pin 2) and - (XLR pin...
    MSRP: $93.61
    $70.21

    Usually arrives in 5-9 business days.

  • RDL DS-CIJ3 Passive Unbalanced Line-Level Audio Mixer for Stereo to Mono with Hum-Rejecting Transformers RDL DS-CIJ3 Passive Unbalanced Line-Level Audio Mixer for Stereo to Mono with Hum-Rejecting Transformers

    RDL DS-CIJ3 Passive Unbalanced Line-Level Audio Mixer for Stereo to Mono with Hum-Rejecting Transformers

    RDL DS-CIJ3 Mono Consumer Input Jacks The DS-CIJ3 is designed for installations that require passive mixing of two unbalanced line-level audio sources into a single mono line. This compact module accepts consumer-level signals via two gold-plated phono...
    MSRP: $145.65
    $109.24

    Usually arrives in 5-9 business days.

  • RDL D-CIJ3 Mono Consumer Input Jacks

    RDL D-CIJ3 Mono Consumer Input Jacks

    The D‑CIJ3 is the ideal choice in installations requiring the passive mixing of two unbalanced line level audio sources to feed a mono balanced (or unbalanced) audio line. The D‑CIJ3 is a complete unbalanced line‑level audio input...
    MSRP: $145.79
    $109.34

    Usually arrives in 5-9 business days.

  • RDL DS-CIJ3D Stereo Consumer Input Jacks RDL DS-CIJ3D Stereo Consumer Input Jacks - Stereo

    RDL DS-CIJ3D Stereo Consumer Input Jacks - Stereo

    RDL DS-CIJ3D Stereo Consumer Stereo Input Jacks  The DS-CIJ3D is the ideal choice in installations requiring stereo unbalanced line level audio sources to feed stereo balanced (or unbalanced) audio lines. The DS-CIJ3D is a complete...
    MSRP: $173.68
    $130.26

    Usually arrives in 5-9 business days.

  • RDL D-CIJ3D Stereo Consumer Input Jacks

    RDL D-CIJ3D Stereo Consumer Input Jacks

    The RDL D-CIJ3D Stereo Consumer Input Jacks are the ideal choice in installations requiring stereo unbalanced line level audio sources to feed stereo balanced (or unbalanced) audio lines. The D-CIJ3D is a complete unbalanced line-level audio input...
    MSRP: $174.19
    $130.64

    Usually arrives in 5-9 business days.

  • RDL ST-VCA3 Voltage Controlled Amplifier

    RDL ST-VCA3 Voltage Controlled Amplifier

    The RDL ST-VCA3 Voltage Controlled Amplifier is used in applications requiring smooth audio level control from a remote control panel, potentiometer or dc voltage (0 to 10 V). Installation in series with the audio input of a power amplifier allows...
    MSRP: $237.69
    $178.27

    Usually arrives in 5-9 business days.

  • RDL TX-PA40D Stereo Audio Amplifier with Power Supply

    RDL TX-PA40D Stereo Audio Amplifier with Power Supply

    The RDL TX-PA40D Stereo Audio Amplifier is the ideal choice in many applications where a high quality, high-efficiency utility amplifier is needed to drive a pair of 4 Ω or 8 Ω speakers. It is specifically suited to fixed-gain...
    MSRP: $443.36
    $332.52

    Usually arrives in 5-9 business days.

  • RDL EZ-ADA4 Stereo Audio Distribution Amplifier RDL EZ-ADA4 Stereo Audio Distribution Amplifier

    RDL EZ-ADA4 Stereo Audio Distribution Amplifier

    The EZ-ADA4 Stereo Audio Distribution Amplifier is a stereo audio distribution amplifier with gain adjustment and audio level metering. The input is connected through RCA jacks or a MINI jack. A front-panel knob adjusts for high or low input levels...
    MSRP: $266.36
    $199.77

    Usually arrives in 5-9 business days.

  • RDL EZ-HSX4 Stereo Audio Input Switcher with Headphone Amp RDL EZ-HSX4 Stereo Audio Input Switcher with Headphone Amp

    RDL EZ-HSX4 Stereo Audio Input Switcher with Headphone Amp

    The RDL EZ-HSX4 Stereo Audio Input Switcher with Headphone Amp is a stereo audio source selector with an output volume control. Line-level and headphone outputs are provided. This unit is ideal as a four input headphone amplifier and as a source...
    MSRP: $322.21
    $241.66

    Usually arrives in 5-9 business days.

  • RDL EZ-MPA1 Microphone Preamplifier RDL EZ-MPA1 Microphone Preamplifier

    RDL EZ-MPA1 Microphone Preamplifier

    The RDL EZ-MPA1 is a microphone preamplifier with front-panel volume control and audio level metering. A front-panel switch engages an audio compressor to control overloads and clipping during high level audio bursts or peaks from the microphone...
    MSRP: $288.08
    $216.06

    Usually arrives in 5-9 business days.

  • RDL EZ-HDA4B Stereo Headphone Distribution Amplifier RDL EZ-HDA4B Stereo Headphone Distribution Amplifier

    RDL EZ-HDA4B Stereo Headphone Distribution Amplifier

    The RDL EZ-HDA4B Stereo Headphone Distribution Amplifier contains four stereo headphone amplifiers with individual front-panel volume controls. Headphone outputs are provided on rear-panel MINI jacks. One stereo input signal feeds all the amplifiers...
    MSRP: $295.18
    $221.38

    Usually arrives in 5-9 business days.

  • RDL EZ-MCP1 RDL EZ-MCP1 Microphone Compressor

    RDL EZ-MCP1 Microphone Compressor

    RDL EZ-MCP1 Microphone Compressor The EZ-MCP1 is an in-line microphone compressor that produces consistent audio levels despite wide variations (up to 30 dB) from the microphone. It is installed between a dynamic or condenser microphone and a mic-level...
    MSRP: $309.18
    $231.89

    Usually arrives in 5-9 business days.

  • RDL EZ-MX4ML Microphone and Stereo Line Audio Mixer RDL EZ-MX4ML Microphone and Stereo Line Audio Mixer

    RDL EZ-MX4ML Microphone and Stereo Line Audio Mixer

    The RDL EZ-MX4ML Microphone and Stereo Line Audio Mixer is a stereo audio mixer with two mic and two line inputs. Microphones connect through balanced XLR jacks that provide phantom voltage. Both line inputs connect through RCA jacks; one also...
    MSRP: $325.50
    $244.12

    Usually arrives in 5-9 business days.

  • RDL AV-HK1 Hum Killer Stereo Audio Isolation Transformer

    RDL AV-HK1 Hum Killer Stereo Audio Isolation Transformer

    The RDL AV-HK1 is a stereo transformer isolation module for use with unbalanced, high impedance audio inputs. Input and output connections are provided on gold-plated phono jacks. The AV-HK1 is supplied with two adapter cables to facilitate connecting...
    MSRP: $175.93
    $131.95

    Usually arrives in 5-9 business days.

  • RDL TX-TPR3A Three-Pair Receiver

    RDL TX-TPR3A Three-Pair Receiver

    The RDL TX-TPR3A is a three-pair audio receiving module compatible with RDL Format-A twisted pair products. Three outputs are provided corresponding to the three signal pairs A, B and C. The audio signal received on each pair of the RJ45 INPUT jack...
    MSRP: $281.41
    $211.05

    Usually arrives in 5-9 business days.

  • RDL RU-MLA2 Dual Microphone Line Preamplifier

    RDL RU-MLA2 Dual Microphone Line Preamplifier

    The RDL RU-MLA2 is a dual channel audio preamplifier. The inputs and outputs may be connected through the front-panel XLR jacks or on the rear panel detachable terminal blocks. Each input accepts either a balanced microphone or line level signal. Each...
    MSRP: $512.98
    $384.73

    Usually arrives in 5-9 business days.

  • RDL ST-MX2 2 Channel Audio Mixer

    RDL ST-MX2 2 Channel Audio Mixer

    The RDL ST MX2 2 Channel Audio Mixer is used in any application requiring mixing of two audio sources. A mic may be mixed with a line-level music source. Two mics may be mixed to feed the mic or line level input of a power amplifier. A mic or...
    MSRP: $267.49
    $200.62

    Usually arrives in 5-9 business days.

  • RDL FP-MP1 Studio Quality Microphone Preamplifier with Phantom Power and Selectable Input Gain RDL FP-MP1 Studio Quality Microphone Preamplifier with Phantom Power and Selectable Input Gain

    RDL FP-MP1 Studio Quality Microphone Preamplifier with Phantom Power and Selectable Input Gain

    The RDL FP-MP1 Studio Quality Microphone Preamplifier is the ideal choice in most applications where mic to line preamplification is desired. Power connections are made using either the full-size barrier block terminals or a dc power jack located in...
    MSRP: $441.17
    $330.88

    Usually arrives in 5-9 business days.

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