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Radio Design Labs

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    • RDL HD-MA35A 35 Watt Mixer Amplifier with Power Supply - Constant Voltage Output 25 V 70 V or 100 V

      RDL HD-MA35A 35 Watt Mixer Amplifier with Power Supply - Constant Voltage Output 25 V 70 V or 100 V

      The HD-MA35A is a three input audio mixer amplifier for systems demanding a broad range of features and high energy efficiency. Two output power amplifier zones are provided, 35 W (Zone 1) and 2 W (Zone 2). The Zone 1 output is driven from a high-efficiency Class D amplifier stage. The Zone 1 amplifier output level may be VCA controlled using various optional RDL remote controls, or by industry standard 0 to 10 Vdc or 0 to 10 kOhm controls. This output provides a constant voltage (25 V, 70 V or...

       

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      Item #: RDL-HD-MA35A

      Availability: Usually ships in 3-10 business days

      Our Price: $268.80

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    • RDL FP-MP1 Studio Quality Mic Preamp w/ Phantom - Terminals & XLR

      RDL FP-MP1 Studio Quality Mic Preamp w/ Phantom - Terminals & XLR

      The FP-MP1 is the ideal choice in most applications requiring a preamp. RDL's exclusive low-noise discrete circuitry produces studio quality low noise performance in an economical preamplifier. The XLR and plug-in terminal block connections make the FP-MP1 perfect for both rack-mounted hardwired installations and remote use with standard audio cables. A front-panel switch permits the installer to direct phantom voltage to the input connectors. This 3-position switch...

       

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      Item #: FP-MP1

      Availability: In Stock

      Our Price: $218.49

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    • RDL FP-UBC6 Unbalanced to Balanced Converter - 6 Channel

      RDL FP-UBC6 Unbalanced to Balanced Converter - 6 Channel

      The FP-UBC6 is the ideal choice for multiple channel connectorized conversion from unbalanced to balanced audio. This module features six identical channels, making it ideally suited to converting consumer 6-channel surround sound into the professional audio format. Each input channel is unbalanced, connected through a gold-plated phono jack. Each output is balanced. All outputs are connected through XLR jacks with gold-plated pins. A gain trim potentiometer is provided for each channel. The...

       

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      Item #: FP-UBC6

      Availability: In Stock

      Our Price: $370.49

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    • RDL TX-J2 Unbalanced Input Transformer

      RDL TX-J2 Unbalanced Input Transformer

      The RDL TX-J2 Unbalanced Input Transformer is part of Radio Design Labs TX Series and features unbalanced stereo inputs to summed balanced mono output. TX Series modules are application-specific modules for the A/V and related industries. Many TX modules offer galvanic transformer isolation. Module functions include signal detection, switching, amplification, format conversion, line driving, mixing, distribution, twisted-pair sending/receiving and more. Each TX is a compact module...

       

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      Item #: TX-J2

      Availability: In Stock

      Our Price: $57.49

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    • RDL PS-24AS 500mA AC/DC Power Supply For Stick-Ons & Rack Ups

      RDL PS-24AS 500mA AC/DC Power Supply For Stick-Ons & Rack Ups

      Unit powers multiple, similar Stick Ons and Rack-Ups. Call our Tech Support for compatibility of non similar units.

       

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      Item #: PS24V

      Availability: In Stock

      Our Price: $27.99

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    • RDL RU-MLB4P Mic/Line Bi-Directional Network Interface - PoE

      RDL RU-MLB4P Mic/Line Bi-Directional Network Interface - PoE

      The RU-MLB4 modules are Dante audio network interface products compatible with microphones and line-level audio equipment inputs and outputs. These modules are designed to be mounted in equipment racks, closets, conference tables and on shelves or backboards in commercial/industrial installations. APPLICATION: The RU-MLB4 is a high quality converter that provides professional line-level outputs from four Dante network received audio channels. It also converts four professional or consumer line-level...

       

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      Item #: RDL-RU-MLB4P

      Availability: Usually ships in 3-10 business days

      Our Price: $619.90

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    • RDL DG-PSP1 Decora-Style Active Loudspeaker

      RDL DG-PSP1 Decora-Style Active Loudspeaker

      The D SERIES-PSP1 is a compact active loudspeaker that delivers rich, detailed sound in 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. Amplification is provided by a high-efficiency Class D power stage with audio filtering tailored for crisp, pleasant audio clarity. The high-efficiency Class D output stage produces negligible heat for all levels of expected voice or music modulation....

       

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      Item #: RDL-DG-PSP1

      Availability: Usually ships in 3-10 business days

      Our Price: $179.89

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    • RDL RM-MP12A Audio Monitor Panel - 12 Line or Speaker Inputs

      RDL RM-MP12A Audio Monitor Panel - 12 Line or Speaker Inputs

      Each RM-MP12 input may be individually calibrated for unbalanced consumer, balanced professional, 8 Ohm speaker line or constant voltage speaker lines. There is a variable intensity LED on the front panel to show audio presence for each input. If the RM-MP12 is set to the interlocking operating mode, front-panel pushbuttons select one of the twelve inputs to feed the calibrated meter, front-panel speaker (or external speaker if connected) and headphone jack. In the mixing mode, the buttons allow...

       

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      Item #: RM-MP12A

      Availability: Usually ships in 3-10 business days

      Our Price: $1,091.03

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    • RDL ST-SSR1 Line-Level Audio Switch - 2x1

      RDL ST-SSR1 Line-Level Audio Switch - 2x1

      The ST-SSR1 was designed for absolute silent switching of audio signals. It supports two balanced line-level inputs and one balanced output. Each can be used unbalanced as well. The ST-SSR1 is perfect for switching between two input signals or as a silent On/Off switch for a single channel. Performance is in keeping with the technical standards for which RDL has become known. The user can program the module for either fast or soft switching. The SELECT input feeds the OUTPUT when the TRIG terminal...

       

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      Item #: ST-SSR1

      Availability: In Stock

      Our Price: $103.95

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    • RDL ST-ACR1 Line-Level Audio Controlled Relay - 0.5 to 5 s

      RDL ST-ACR1 Line-Level Audio Controlled Relay - 0.5 to 5 s

      The ST-ACR1 is an Audio Controlled Relay in the STICK-ON series. These products are designed for quick, convenient installation, and reliable operation in a variety of control applications. The ST-ACR1 is designed to switch on line level sources. Two multiturn trimmers are provided. The SENS potentiometer adjusts the audio input sensitivity. A threshold LED facilitates accurate adjustment. The module can be set to trigger on signals between -30 dBu and 0 dBu. The DELAY control sets the time required...

       

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      Item #: ST-ACR1

      Availability: In Stock

      Our Price: $96.49

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    • Radio Design Labs FP-MR2 Message Repeater

      Radio Design Labs FP-MR2 Message Repeater

      The FP-MR2 is a message repeater that permits electronic storage of a single recording up to one minute forty seconds in duration. This message may be played back manually using an external contact closure to ground or using the front-panel START button. The message may also be played back periodically using the interval timer included in the FP-MR2. A balanced line-level music input allows background music to be connected and the associated input potentiometer allows the installer to set the music...

       

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      Item #: RDL-FP-MR2

      Availability: Usually ships in 3-10 business days

      Our Price: $285.49

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    • RDL ST-VCA3 Voltage Controlled Amplifier

      RDL ST-VCA3 Voltage Controlled Amplifier

      The ST-VCA3 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 remote control of that amplifier's level. For installations where it is preferred to keep the audio localized in the rack, audio controls are extended outside the rack from the ST-VCA3. Many installations benefit from avoiding long-term potentiometer wear from audio running through the...

       

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      Item #: ST-VCA3

      Availability: In Stock

      Our Price: $117.95

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    • RDL EZ-MX4L 4x1 Stereo Line-Level Audio Mixer

      RDL EZ-MX4L 4x1 Stereo Line-Level Audio Mixer

      The EZ series offers unparalleled flexibility. Each unit is fully labeled on the front and rear for use either as a finished product or as a utility module. Installation of multiple products is quick and easy using the comprehensive range of EZ rack mounts, chassis, bezels, drawers and accessories. High quality full-size switches, long life controls, quality connectors, solid-state audio and video switching, gold plating and superior engineering combine to make EZ the best value in the industry....

       

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      Item #: EZ-MX4L

      Availability: In Stock

      Our Price: $152.95

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    • Radio Design Labs D-SP1A 2 Watt Decora-Style 8 Ohm Loudspeaker - White

      Radio Design Labs D-SP1A 2 Watt Decora-Style 8 Ohm Loudspeaker - White

      The D SERIES-SP1A is a compact 8 ohm loudspeaker that delivers rich, detailed sound in Decora-compatible wall or chassis mounts. The driver is constructed of materials found in premium larger speakers. The unique steel enclosure provides full baffling in a tightly sealed rigid structure. This produces sonic presence within an extended frequency range expected from larger speakers. Internal filtering rolls off out-of-band frequencies to reduce distortion and increase peak power capability. Dispersion...

       

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      Item #: RDL-D-SP1A

      Availability: Usually ships in 3-10 business days

      Our Price: $69.49

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    • RDL DRA-35T TX Series DIN Rail Adapter

      RDL DRA-35T TX Series DIN Rail Adapter

      The DRA-35T provides mounting for any RDLr TX or MAX TX module to a DIN rail. The unique design allows mounting TX modules in a rack, cabinet or anywhere else DIN rail mounting of TX modules is desired.

       

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      Item #: DRA-35T

      Availability: Usually ships in 3-10 business days

      Our Price: $8.86

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    • RDL ST-SX4 Unbalanced Audio Switcher - 4x1

      RDL ST-SX4 Unbalanced Audio Switcher - 4x1

      The ST-SX4 accepts up to four unbalanced audio sources. Any of these sources may be selected to feed the output, or all sources may be switched off. The output from the ST-SX4 is unbalanced. Control of the module is accomplished through a single input terminal. Connection of a specified resistance between the CTRL input and ground causes the desired input to be switched on. The necessary external resistors are supplied with the ST-SX4. The ST-SX4 may be remote controlled using the RC4-ST remote...

       

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      Item #: ST-SX4

      Availability: Usually ships in 3-10 business days

      Our Price: $99.95

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    • Radio Design Labs RU-ADA8D 8 Channel Stereo Audio Distribution Amplifier

      Radio Design Labs RU-ADA8D 8 Channel Stereo Audio Distribution Amplifier

      The RU-ADA8D is an eight channel stereo audio distribution amplifier with input and output gain adjustments and input level metering. The module may be operated in mono to provide up to sixteen distributed mono signals. The inputs and outputs are connected on rear-panel detachable terminal blocks. Each of the two line level inputs accepts either a balanced or an unbalanced signal. Each input is equipped with a front panel INPUT GAIN trimmer. Input signal levels between -14 dBV unbalanced and...

       

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      Item #: RDL-RU-ADA8D

      Availability: In Stock

      Our Price: $370.95

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    • RDL D-RC3 Remote Audio Mixing Control

      RDL D-RC3 Remote Audio Mixing Control

      The 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. They function exactly as a mixer without the need to send audio to and from the remote location. A rear-panel RJ45 jack provides the connection for standard twisted-pair wiring between the remote control and an RDL remote-controlled mixer. The cable sends the knob position and...

       

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      Item #: RDL-D-RC3

      Availability: Usually ships in 3-10 business days

      Our Price: $115.95

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    • RDL FP-UBC2 Unbalanced to Balanced Converter - 2 Channel

      RDL FP-UBC2 Unbalanced to Balanced Converter - 2 Channel

      The FP-UBC2 is the ideal choice for connectorized conversion from unbalanced to balanced audio. This module features two identical channels. Gold-plated phono jacks are utilized for each unbalanced input channel. Each output is balanced, connected through an XLR jack. A gain trim potentiometer is provided for each channel. The normal gain setting is indicated for the trimming potentiometer. This setting produces a +4 dBu balanced output for a -10 dBV unbalanced input. The gain is adjustable -5...

       

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      Item #: FP-UBC2

      Availability: Usually ships in 3-10 business days

      Our Price: $171.49

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    • RDL TX-LC2 Unbalanced to Balanced Line Combiner

      RDL TX-LC2 Unbalanced to Balanced Line Combiner

      The TX-LC2 is the ideal choice in installations requiring the active, isolated mixing of two unbalanced line-level audio sources to feed a balanced (or unbalanced) audio line. The input circuits are high-impedance, line-level (-10 dBV) and are each isolated from each other. Therefore the modules may be used to bridge an unbalanced stereo source without affecting the stereo separation. The output from the TX-LC2 is a mono mix of the stereo signal. Gain of the combined signals is adjustable from...

       

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      Item #: TX-LC2

      Availability: In Stock

      Our Price: $93.95

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    • RDL HR-DDA4 Digital Audio Distributor - 1x4

      RDL HR-DDA4 Digital Audio Distributor - 1x4

      The HR-DDA4 is the ideal choice in installations requiring high quality distribution of a digital audio signal. The input and each of the four outputs support AES/EBU, S/PDIF or AES-3ID formats. The HR-DDA4 automatically detects a valid input on any of the four input jacks: S/PDIF optical, S/PDIF coaxial, AES-3ID or AES/EBU. The input is decoded, reclocked and retransmitted to four individually buffered outputs. Front-panel LEDs display the digital audio format and sample rate of a valid source...

       

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      Item #: HR-DDA4

      Availability: Usually ships in 3-10 business days

      Our Price: $620.95

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    • RDL STD-600 Passive Audio Divider/Combiner - 600 Ohm

      RDL STD-600 Passive Audio Divider/Combiner - 600 Ohm

      Each STD module is a resistive branching network with RF filtering on each of the four channels. Any channel, A through D, may be either an input or an output. This permits combining stereo signals into mono inputs, splitting mono signals to multiple inputs, and even combining microphones with output shorting switches into a single amplifier input. The STD modules are available in 150 Ohm, 600 Ohm and 10 k Ohm models. All inputs and outputs are balanced. Features: 600 Ohm Operation Combine Audio...

       

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      Item #: STD-600

      Availability: In Stock

      Our Price: $54.49

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    • RDL STA-2A Dual High Gain Line Amplifiers

      RDL STA-2A Dual High Gain Line Amplifiers

      The STA‑2A is a dual‑channel, line‑level audio preamplifier. Each channel is identical. The audio inputs are bridged at 20 kΩ and accept either an unbalanced or a balanced audio signal. Gain is adjustable from unity to +24 dB using a 25‑turn precision audio taper trimming potentiometer. The output line driver circuits are designed to drive long balanced audio lines into 600 Ω loads. The STA‑2A features wideband circuitry for excellent phase response, low...

       

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      Item #: STA-2A

      Availability: In Stock

      Our Price: $145.25

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    • RDL RU-LB4P Line-Level Bi-Directional Network Interface - PoE

      RDL RU-LB4P Line-Level Bi-Directional Network Interface - PoE

      The RU-LB4 modules are Dante audio network interface products compatible with line-level audio equipment inputs and outputs. These modules are designed to be mounted in equipment racks, closets, conference tables and on shelves or backboards in commercial/industrial installations. APPLICATION: The RU-LB4 is a high quality converter that provides professional line-level outputs from four Dante network received audio channels. It also converts four professional or consumer line-level sources to Dante...

       

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      Item #: RDL-RU-LB4P

      Availability: Usually ships in 3-10 business days

      Our Price: $552.02

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    • RDL ST-DA3 Line Level Distribution Amplifier - 1x3

      RDL ST-DA3 Line Level Distribution Amplifier - 1x3

      The 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. The ST-DA3's wideband circuitry produces the unsurpassed pure clarity, low-distortion and low-noise for which RDL products are known. The ST-DA3 features RDL's SupplyFlex power input configuration. The module will operate directly from floating...

       

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      Item #: ST-DA3

      Availability: In Stock

      Our Price: $136.95

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      The concept of Application-Specific-Modules was first introduced by RDL more than twenty years ago - a concept promoting unsurpassed value and performance. As the inventor of Application-Specific-Modules, RDL continues to lead the industry with their solutions to specific problems as well as building blocks of quality audio/video system designs. Markertek is the largest in-stock source for Radio Design Labs Products.

      Markertek is an authorized dealer for the entire Radio Design Labs line. If you don't see what you're looking for, contact us and we'll do our best to get it for you.

       
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