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Radio Design Labs

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    • RDL RU-MLB4 Mic/Line Bi-Directional Network Interface

      RDL RU-MLB4 Mic/Line Bi-Directional Network Interface

      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-le

           

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          Item #: RDL-RU-MLB4

          Availability: Usually ships in 3-10 business days

          Our Price: $582.20

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        • RDL RU-NL4P Network to Line Level Interface - PoE

          RDL RU-NL4P Network to Line Level Interface - PoE

          The RU-NL4 modules are Dante audio network interface products compatible with line-level audio equipment inputs. 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-NL4 is a high quality converter that provides professional line-level outputs from four Dante network audio channels. Each output provides +4 dBu balanced for a network digital audio level of -18 dBFS. The profe

               

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              Item #: RDL-RU-NL4P

              Availability: Usually ships in 3-10 business days

              Our Price: $449.05

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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.

              • 600 Ohm Operation
              • Combine Audio Signals to

               

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              Item #: STD-600

              Availability: In Stock

              Our Price: $54.49

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            • RDL TX-A2D Dual Audio Converter - Balanced to Unbalanced

              RDL TX-A2D Dual Audio Converter - Balanced to Unbalanced

              The TX-A2D is the ideal choice in installations requiring passive isolation and level attenuation between a professional balanced line-level stereo source and consumer equipment unbalanced inputs.

              The TX-A2D is a complete unbalanced stereo line-level audio output module. The front panel provides a detachable terminal block for connecting each channel of a balanced +4 dBu audio source. The input signals are coupled to two front-panel gold plated phono jacks through studio-quality isolation transfo

                 

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                Item #: RDL-TX-A2D

                Availability: Usually ships in 3-10 business days

                Our Price: $103.49

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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: $24.06

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              • RDL STM-2X Switched Microphone Preamplifier - 35 to 65 dB Gain

                RDL STM-2X Switched Microphone Preamplifier - 35 to 65 dB Gain

                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.

                Required Power Supply RDL PS24V Sold Separately

                • Quiet Switching of Condenser Microphone
                • Remote Microphone Soft‑Switching
                • Switch a Mic‑Level Source to a Mic or Line Level Output
                • Remote Toggle Swit






                 

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                Item #: STM-2X

                Availability: In Stock

                Our Price: $158.49

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              • RDL AV-HK1 HUM KILLER Stereo Audio Isolation Transformer

                RDL AV-HK1 HUM KILLER Stereo Audio Isolation Transformer

                The 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 with products that use mini‑plugs and jacks.

                The shield connection of each INPUT jack is electrically isolated from the case and from the output ground. The shield connection of each OUTPUT jack is connected to the case shield. T





                   

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                  Item #: AV-HK1

                  Availability: In Stock

                  Our Price: $87.49

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                • RDL ST-MX3 3 Channel Audio Mixer - Line Input and Output

                  RDL ST-MX3 3 Channel Audio Mixer - Line Input and Output

                  The 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. The line-level output is capable of driving either high or low impedance, balanced or unbalanced loads.


                  The ST-MX3 operates from floating or bipolar dc power.


                  For installations with microphone level inputs, use the ST-UMX3 Universal Audio Mixer.

                  For installations with microphone level inputs, use the ST-UMX3 Universal Audio Mixer.

                  • Mix

                   

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                  Item #: ST-MX3

                  Availability: In Stock

                  Our Price: $122.49

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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 24

                     

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                    Item #: ST-DA3

                    Availability: In Stock

                    Our Price: $136.95

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                  • RDL FP-ALC1 Automatic Level Control - Mono - Terminal Block

                    RDL FP-ALC1 Automatic Level Control - Mono - Terminal Block

                    The FP-ALC1 is the ideal choice in many applications where consistent mono audio levels are needed from professional sources with varying audio output levels. Power connections are made using either the full-size barrier block or a dc power jack located in one end panel.

                    The FP-ALC1 is a single channel (mono) module featuring a detachable terminal block for the input and output. A single user adjustment makes installation simple and efficient. The gain adjustment is set as high as possible with t

                       

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                      Item #: FP-ALC1

                      Availability: Usually ships in 3-10 business days

                      Our Price: $218.49

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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 engineered to p

                           

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                          Item #: TX-J2

                          Availability: In Stock

                          Our Price: $57.49

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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 no


                             

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                            Item #: STA-2A

                            Availability: Usually ships in 3-10 business days

                            Our Price: $145.25

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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 th

                               

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                              Item #: ST-VCA3

                              Availability: In Stock

                              Our Price: $117.95

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                            • RDL EZ-ADA4 1x4 Stereo Audio Distribution Amplifier

                              RDL EZ-ADA4 1x4 Stereo Audio Distribution Amplifier

                              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-ADA4

                                  Availability: In Stock

                                  Our Price: $132.95

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                                • RDL RU-MLA2 Dual Microphone / Line Preamplifier

                                  RDL RU-MLA2 Dual Microphone / Line Preamplifier

                                  The 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 output provides either a microphone or line level signal. Both the front-panel XLR connectors and the rear-panel terminals are active at all times. The RU-MLA2 may be rack-mounted with the XLR jacks facing forward, or may be reverse-mounted using the R







                                   

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                                  Item #: RU-MLA2

                                  Availability: In Stock

                                  Our Price: $256.49

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                                • RDL RU-LB4 Line-Level Bi-Directional Network Interface

                                  RDL RU-LB4 Line-Level Bi-Directional Network Interface

                                  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 Dan

                                       

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                                      Item #: RDL-RU-LB4

                                      Availability: Usually ships in 3-10 business days

                                      Our Price: $484.70

                                      Add to Wishlist
                                    • RDL HR-UDC1 Universal Digital Audio Converter AES/EBU - SPDIF

                                      RDL HR-UDC1 Universal Digital Audio Converter AES/EBU - SPDIF

                                      The RDL HR-UDC1 is the ideal choice in installations where digital audio signals must be converted between consumer and professional formats. The input and output support AES/EBU, S/PDIF and AES-3ID formats. The HR-UDC1 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, re-clocked and retransmitted to the output. All pro/consumer, emphasis, and sampling frequency bits common to both S/PDIF and AES/EBU stan

                                           

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                                          Item #: HR-UDC1

                                          Availability: Usually ships in 3-10 business days

                                          Our Price: $480.49

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                                        • RDL TX-PA40D 40 W Stereo Audio Amplifier - 8 Ohm with Power Supply

                                          RDL TX-PA40D 40 W Stereo Audio Amplifier - 8 Ohm with Power Supply

                                          The TX‑PA40D 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 amplification applications where gain is controlled by other equipment. Examples include projectors with variable audio outputs used in classrooms, boardrooms and video conferencing.

                                          The TX‑PA40D features two unbalanced line level inputs on high‑reliability gol
































                                             

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                                            Item #: RDL-TXPA40D

                                            Availability: Usually ships in 3-10 business days

                                            Our Price: $219.49

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                                          • RDL D-RLC10 Remote Level Control

                                            RDL D-RLC10 Remote Level Control

                                            The D SERIES-RLC10 is a rotary remote level control that provides user adjustment at single or multiple locations. Optical encoder technology allows continuous knob rotation with a comfortable adjustment rate and long-term trouble-free and noise-free operation. These controls directly connect to any RDL VCA and OEM equipment with 0 to 10 Vdc ramp inputs.A single -RLC10 may be connected to a ramp-controlled VCA using a single-pair shielded audio cable or unshielded cable. A rear-panel switch c



                                               

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                                              Item #: RDL-D-RLC10

                                              Availability: Usually ships in 3-10 business days

                                              Our Price: $198.95

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                                            • RDL ST-MX2 2 Channel Audio Mixer - Microphone or Line Input and Output

                                              RDL ST-MX2 2 Channel Audio Mixer - Microphone or Line Input and Output

                                              The ST‑MX2 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 professional +4 dBu line‑level mono sum is possible. It may be used to convert mono line‑level signals from consumer to professional, or from professional to consumer format. It may also be used as a microphone preamplifier, or conversely to adapt unbalanced

                                                 

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                                                Item #: ST-MX2

                                                Availability: In Stock

                                                Our Price: $132.49

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                                              • RDL TX-MVX Manual Rmt Controlled Video Switch - 2x1 - BNC

                                                RDL TX-MVX Manual Rmt Controlled Video Switch - 2x1 - BNC

                                                The TX‑AVX is the ideal choice in installations where automatic switchover to an alternate video source is needed when the primary signal is lost. The unique power supply input allows the TX‑AVX to be powered from a wide variety of existing ac or dc power sources.

                                                The TX‑AVX has two video inputs and a single output. The detection circuit bridges the INPUT line. When a valid NTSC or PAL video signal is detected, the INPUT jack is connected to theOUTPUT jack. The output is designe

                                                   

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                                                  Item #: TX-MVX

                                                  Availability: In Stock

                                                  Our Price: $95.95

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                                                • RDL ST-PA18 18 W Mono Audio Amplifier - 8 Ohm

                                                  RDL ST-PA18 18 W Mono Audio Amplifier - 8 Ohm

                                                  The ST-PA18 features a balanced line level input that may be connected unbalanced. The gain control range will accommodate standard unbalanced levels as well as professional balanced levels. The module bridges the input signal. LOOP OUT terminals permit a balanced input to be fed to additional amplifier modules making the ST-PA18 an ideal component in distributed audio system design. The LOOP OUT may also be used to feed a subwoofer amplifier (see RDL ST-CX2S Subwoofer Filter).

                                                  The ST-PA18 output

                                                     

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                                                    Item #: ST-PA18

                                                    Availability: In Stock

                                                    Our Price: $121.95

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                                                  • RDL STM-LDA3 Studio Quality Mic Preamplifier w/Phantom 3 Line Outputs

                                                    RDL STM-LDA3 Studio Quality Mic Preamplifier w/Phantom 3 Line Outputs

                                                    The STM-LDA3 is designed for use in quality commercial sound, broadcast and recording applications. The 1.2 k Ohm balanced input accepts a wide variety of microphone input levels without loading professional low-impedance microphones. A multi-turn gain trimmer allows precise output level adjustment. The output signal is available on three separate balanced line level outputs. Each output may be connected balanced or unbalanced.

                                                    RDL's exclusive low-noise discrete preamplifier circuitry produces st

                                                       

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                                                      Item #: STM-LDA3

                                                      Availability: In Stock

                                                      Our Price: $168.95

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                                                    • RDL RU-SQ6A Sequencing Controller - Power Up / Power Down

                                                      RDL RU-SQ6A Sequencing Controller - Power Up / Power Down

                                                      The RU-SQ6A is the ideal choice in installations where sequential ON and sequential OFF functions are desired. Control and output connections are made on the rear panel through clearly identified detachable terminal blocks.

                                                      Two types of outputs are provided for each of the 6 sequential steps. One type is an open collector capable of switching loads of 50mA. The other type is an SPST dry contact closure which may be used to control a variety of equipment. A single-turn front-panel TIMING INTERVAL

                                                         

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                                                        Item #: RU-SQ6A

                                                        Availability: Usually ships in 3-10 business days

                                                        Our Price: $258.49

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                                                      • RDL RU-MLD4 Microphone / Line Distribution Amplifier - 1x4

                                                        RDL RU-MLD4 Microphone / Line Distribution Amplifier - 1x4

                                                        The RU-MLD4 is a four channel audio distribution amplifier. The input and all four outputs may be connected through the front-panel XLR jacks or on the rear panel detachable terminal blocks. The input accepts either a balanced microphone or line level signal. Each of the four outputs provides either a microphone or line level signal. Both the front-panel XLR connectors and the rear-panel terminals are active at all times. The RU-MLD4 may be rack-mounted with the XLR jacks facing forward, or may

                                                           

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                                                          Item #: RU-MLD4

                                                          Availability: Usually ships in 3-10 business days

                                                          Our Price: $256.95

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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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