Radio Design Labs (RDL)
Talk To An Audio Engineer
Learn More or Get a Price Fast
Fill out the Talk To An Audio Engineer form or call at (888) 256-4112 and one of our sales engineers will contact you within 2 hours.
Need Quantity Pricing? We provide discounts for contractors & installers, schools, government, and military buyers on select brands and products.
Shop with Confidence
Our committed, experienced professional Radio Design Labs sales engineers deliver reliable designs and provide lifetime tech support for all RDL products.
Our RDL Offering
We specialize in RDL Commercial audio mixers, amplifiers, speakers, and accessories for background music, paging, and public address sound systems. We design RDL 70V distributed paging and background music (BGM) systems for business use. RDL products are perfect solutions for mixing, switching, interfacing, and routing sound sources such as paging, voice announcements, recorded music, digital messages, wireless Bluetooth, emergency communications, speech, and sound masking.
Shop our broad range of bestselling Radio Design Labs audio and video products including Radio Design Labs STICK-ON modules and a variety of solutions designed for interfacing, mixing, switching, amplification, monitoring, isolation, control, attenuation, and distribution audio and video signals. These specialty audio products are designed for commercial audio, pro audio, pro video, and studio switching, controlling, and processing of audio line-level, microphone-level, digital audio, and video signals. Radio Design Labs electronics, audio, video, and control products are used in many commercial sound, distributed audio, broadcast AV, video, and studio recording applications.
-
RDL ST-MX3 3 Channel Audio Mixer
The RDL ST-MX3 is a line-level mixer module in the STICK-ON Series of products. It provides audio mixing of three line-level inputs with individual input gain adjustments.
List $239.49Price $179.62Savings $59.87 (25%) -
RDL ST-GCA3 Gain Control Line Level Amplifier
The RDL ST-GCA3 constantly adjusts for changes in input levels, bringing up low levels, and reducing gain for high levels. The audio level is constantly adjusted to maintain the correct output. The AGC adjustment rate is switch-selectable.List $241.17Price $180.88Savings $60.29 (25%) -
RDL ST-NG1 White and Pink Noise Generator
The ST‑NG1 is the ideal choice where random white or pink noise is needed. It is suitable either as a reference noise source for audio measurements or as a masking noise source in engineered sound or counter‑intelligence applications.
List $247.53Price $185.65Savings $61.88 (25%) -
RDL EZ-ADA4X Stereo Audio Distribution Amplifier
The EZ-ADA4X is a stereo audio distribution amplifier with gain adjustment and audio level metering. The input is connected through RCA jacks or a MINI jack.List $257.34Price $193.01Savings $64.33 (25%) -
RDL ST-UMX3 3x1 Universal Audio Mixer
The ST-UMX3 is a three-channel audio mixer for combining mic-level or line-level signals to a single output.
List $257.91Price $193.43Savings $64.48 (25%) -
RDL STM-DA3 Microphone Level Distribution Amplifier
The RDL STM-DA3 is designed for use in quality commercial sound, broadcast and recording applications and accepts a wide variety of microphone input levels without loading professional low impedance microphones.
List $260.01Price $195.01Savings $65.00 (25%) -
RDL ST-DA3 Line Level Distribution Amplifier
The RDL ST-DA3 gives you the advantages of an audio distribution amplifier PLUS you can put it where you need it. The ST-DA3 allows bridging of any audio line, adjusting the gain, and driving up to three high or low impedance, balanced or unbalanced loads.
List $268.52Price $201.39Savings $67.13 (25%) -
RDL FP-PA20B 20W Mono RMS Audio Power Amplifier 25V
The RDL FP-PA20B produces average audio levels and audio clarity normally expected of amplifiers delivering much higher output power.
List $273.68Price $205.26Savings $68.42 (25%) -
RDL STM-2 Microphone Preamplifier
The RDL STM-2 is a quality low-noise microphone preamplifier designed for use in commercial sound, broadcast, and recording. The STM-2 is very flexible, with gain adjustment from 35 to 65 dB, two balanced or unbalanced outputs, and available phantom supply input.
List $273.96Price $205.47Savings $68.49 (25%) -
RDL D-RC3M Remote Audio Mixing Control with Muting
The RDL D-RC type remote audio mixing controls provide user-accessible volume knobs for two or three sources. Each control is available with level controls only, or with level controls plus a muting button for each channel.
List $274.76Price $206.07Savings $68.69 (25%) -
RDL FP-PA20 20W Mono RMS Audio Power Amplifier 8 ohm
The RDL FP-PA20 produces average audio levels and audio clarity normally expected of amplifiers delivering much higher output power.
List $277.59Price $208.19Savings $69.40 (25%) -
RDL EZ-MPA1X Microphone Preamplifier
The EZ-MPA1X 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.List $279.69Price $209.77Savings $69.92 (25%) -
RDL FP-PA20A 20W Mono RMS Audio Power Amplifier 70V and 100V
Both a 70V and 100V amplified output are provided on the RDL FP-PA20A to drive corresponding speakers in a distributed sound system.
List $283.86Price $212.89Savings $70.97 (25%) -
RDL EZ-SX4 Stereo Audio Input Switcher
The EZ-SX4 is a stereo audio source selector with an output volume control that adjusts the line level output. This unit is ideal as a four input source selector feeding an associated audio amplifier.List $289.86Price $217.39Savings $72.47 (25%) -
RDL EZ-SX4X Stereo Audio Input Switcher
The EZ-SX4X is a stereo audio source selector with an output volume control that adjusts the line-level output. This unit is ideal as a four input source selector feeding an associated audio amplifier.List $289.86Price $217.39Savings $72.47 (25%) -
RDL EZ-MX4L Stereo Line Level Audio Mixer
The RDL EZ-MX4L Stereo Line Level Audio Mixer is a stereo audio mixer with four line inputs. All line inputs connect through RCA jacks; one also includes a MINI-jack input. Left and right channel LED VU metering facilitates easy level adjustment.
List $297.89Price $223.42Savings $74.47 (25%) -
RDL DS-TPS3A Active Three Pair Sender
The TPS3A modules are three pair audio sending modules compatible with RDL Format A twisted pair products. These modules are designed to be mounted in wall boxes, cabinets or other enclosures that allow users to connect audio sources.
List $306.42Price $229.81Savings $76.61 (25%) -
RDL STM-2X Microphone Preamplifier
The RDL STM-2X is the ideal choice in many installations where a microphone preamplifier is required, and is the ideal choice where either a toggle-type switch or push-to-talk switch is to be provided for microphone control, particularly if condenser microphones are used.
List $310.29Price $232.71Savings $77.58 (25%) -
RDL EZ-HK1 Stereo Audio Hum Killer
The EZ-HK1 is a superior-quality stereo audio transformer isolation module for use with unbalanced, high impedance audio inputs. Input and output connections are provided on gold-plated RCA jacks.
List $324.58Price $243.44Savings $81.14 (25%) -
RDL D-HPA3 3.5 Watt Audio Power and Headphone Amplifier
The RDL D-HPA3 is a 3.5 Watt audio power and headphone amplifier with a line input, an amplified output to drive a 4 or 8 ohm speaker and a separate headphone amplifier. Features a balanced line level input that can connect unbalanced.List $335.91Price $251.93Savings $83.98 (25%) -
RDL D-PSP1 Decora-Style Active Loudspeaker - White
The RDL D Series D-PSP1 is a compact active loudspeaker that delivers rich, detailed sound in a Decora-compatible wall or chassis mounts. The input accepts either a -10 dBV unbalanced or a +4 dBu balanced signal on the rear-panel detachable terminal block.
List $338.11Price $253.59Savings $84.52 (25%) -
RDL EZ-MPA2 Dual Microphone Preamplifier
The EZ-MPA2 is a stereo microphone preamplifier with front-panel volume controls and audio level metering. A front-panel switch engages audio compressors to control overloads and clipping during high level audio bursts or peaks from the microphones.List $347.46Price $260.60Savings $86.86 (25%) -
RDL EZ-MPA2X Dual Microphone Preamplifier
The EZ-MPA2X is a stereo microphone preamplifier with front-panel volume controls and audio level metering. A front-panel switch engages audio compressors to control overloads and clipping during high level audio bursts or peaks from the microphones.List $347.46Price $260.60Savings $86.86 (25%) -
RDL EZ-AFC2 Stereo Audio Format Converter
The EZ-AFC2 is a stereo bi-directional audio format converter with level controls. Conversion is provided between balanced rear-panel XLR jacks and unbalanced front-panel RCA jacks.
List $367.45Price $275.59Savings $91.86 (25%)