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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 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 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: Usually ships in 3-10 business days

          Our Price: $24.06

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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-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 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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              • 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 +9 d

                     

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                    Item #: RDL-RU-ADA8D

                    Availability: In Stock

                    Our Price: $370.95

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                  • RDL EZ-MPA1 Stereo Output Microphone Preamplifier

                    RDL EZ-MPA1 Stereo Output Microphone Preamplifier

                    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-MPA1

                        Availability: Usually ships in 3-10 business days

                        Our Price: $143.95

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                      • RDL ST-LCR1 Logic Controlled Relay - Momentary

                        RDL ST-LCR1 Logic Controlled Relay - Momentary

                        The ST-LCR1 provides double-pole, double-throw dry switching contacts and LED indicator for relay closure. The ST-LCR1 provides momentary operation and is ideally suited where additional switching contacts are needed to be added to nearly any type of control signal.

                        Required Power Supply RDL PS24V Sold Separately

                        • Add Contacts to Any Control Signal
                        • Activation from Logic Circuits
                        • DPDT Switching Relay
                        • Open-Collector Switching
                        • Control from Switch, Button or Logic Circuits

                         

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                        Item #: ST-LCR1

                        Availability: In Stock

                        Our Price: $74.49

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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 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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                            • 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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                                • 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: $699.95

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                                  • RDL HR-ADC1 Analog to Digital Audio Converter

                                    RDL HR-ADC1 Analog to Digital Audio Converter

                                    The HR-ADC1 is a broadcast quality A/D converter that provides exceptional audio accuracy and clarity with any audio source or style. Superior analog performance fine tuned through audiophile listening practices produces very low distortion (0.0006%), exceedingly low noise (-135 dB) and remarkably flat frequency response (+/- 0.05 dB). This performance is coupled with unparalleled metering flexibility and programmability with average mastering level monitoring and peak value storage. With extern

                                       

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                                      Item #: HR-ADC1

                                      Availability: Usually ships in 3-10 business days

                                      Our Price: $607.49

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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-le

                                           

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                                          Item #: RDL-RU-MLB4P

                                          Availability: Usually ships in 3-10 business days

                                          Our Price: $619.90

                                          Add to Wishlist
                                        • RDL TX-AT1S Audio Isolation Transformer with Suppression

                                          RDL TX-AT1S Audio Isolation Transformer with Suppression

                                          • Studio Quality Bifilar Audio Transformer
                                            Transient and RF Suppression
                                            Terminal Block Transformer Connections
                                            Galvanic Isolation
                                            1:1 Transformer Coupling
                                            Transformer to Drive 600 Ohm Line
                                            Convenience of RDL TXs
                                            Frequency Response: 20 Hz to 20 kHz (+/- 0.1 dB)
                                            THD: < 0.035% ( 50 Hz to 20 kHz, +4 dBu input) 0.001% (Typ. 1 kHz, +4 dBu input)
                                            Input / Output Level: +4 dBu, +22 dBu max.
                                            CMRR: > 85 dB (balanced input, 50 to 60 Hz)

                                           

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                                          Item #: TX-AT1S

                                          Availability: Usually ships in 3-10 business days

                                          Our Price: $95.95

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                                        • RDL FP-BUC2 Balanced to Unbalanced Converter - 2 Channel

                                          RDL FP-BUC2 Balanced to Unbalanced Converter - 2 Channel

                                          The FP-BUC2 is the ideal choice for connectorized conversion from balanced to unbalanced audio. This module features two identical active (transformerless) channels. Gold contact XLR jacks are utilized for the balanced input channels. Each output is unbalanced, connected through a gold-plated phono jack. A level trim potentiometer is provided for each channel.

                                          The FP-BUC2 circuitry features low-noise, low-distortion and excellent headroom and crosstalk performance and the superior audio clarity f

                                             

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                                            Item #: FP-BUC2

                                            Availability: Usually ships in 3-10 business days

                                            Our Price: $171.95

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                                          • RDL RU-MX5ML 5 Channel Mic/Line Audio Mixer with Phantom Power

                                            RDL RU-MX5ML 5 Channel Mic/Line Audio Mixer with Phantom Power

                                            The RU-MX5ML is the ideal choice in many applications where a combination of balanced mic and/or balanced or unbalanced line-level signals needs to be mixed with the ability for additional expansion. All connections are made using detachable terminal blocks on the rear panel. Four of the RU-MX5ML inputs can accept either mic or line inputs. The fifth input is for line level sources.

                                            24 V phantom is individually switch selectable for each mic input. The output from one RU-MX5ML may connect to the

                                               

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                                              Item #: RU-MX5ML

                                              Availability: Usually ships in 3-10 business days

                                              Our Price: $254.95

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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 termina

                                               

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                                              Item #: ST-SSR1

                                              Availability: In Stock

                                              Our Price: $103.95

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                                            • RDL HR-MCP2 Professional Dual Microphone Compressor

                                              RDL HR-MCP2 Professional Dual Microphone Compressor

                                              The HR-MCP2 is a dual channel microphone compressor that produces a consistent audio output level over wide variations (up to 25 dB) in the microphone input level. Rear-panel switches allow setting each output to mic or line level. Each channel can therefore be used as a mic-level in-line compressor or as a microphone preamplifier with compression. The unique circuit design preserves full studio-quality low-noise performance at any gain setting. The HR-MCP2 is compatible with dynamic and condens

                                                   

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                                                  Item #: RDL-HR-MCP2

                                                  Availability: Usually ships in 3-10 business days

                                                  Our Price: $485.49

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                                                • RDL EZ-HSX4 4x1 Stereo Audio Input Switcher with Headphone Amp

                                                  RDL EZ-HSX4 4x1 Stereo Audio Input Switcher with Headphone Amp

                                                  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.

                                                       

                                                      2 Power Supplies Available

                                                      Item #: EZ-HSX4

                                                      Availability: Usually ships in 3-10 business days

                                                      Our Price: $160.95

                                                      Add to Wishlist
                                                    • 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 HR-DAC1 Digital to Analog Converter - 24 bit 192 kHz

                                                        RDL HR-DAC1 Digital to Analog Converter - 24 bit 192 kHz

                                                        The HR-DAC1 is the ideal choice in installations requiring high quality analog audio from an AES/EBU, AES-3ID or S/PDIF digital audio source. The HR-DAC1 automatically detects a valid input on any of the four input jacks: S/PDIF optical, S/PDIF coaxial, AES-3ID or AES/EBU. The AES/EBU input is 110 Ohm terminated; the S/PDIF coaxial and AES-3ID jacks are 75 Ohm terminated. A front-panel LOCK LED indicates the presence of a valid digital audio source without any phase-lock or bit errors. Sample ra

                                                           

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                                                          Item #: HR-DAC1

                                                          Availability: Usually ships in 3-10 business days

                                                          Our Price: $465.49

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                                                        • RDL DB-CIJ3 Consumer Input Jacks - Mono

                                                          RDL DB-CIJ3 Consumer Input Jacks - Mono

                                                          The DB-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 DB-CIJ3 is a complete unbalanced line-level audio input module. The front panel features two gold plated phono jacks and a single stereo mini-jack, intended for mono or stereo consumer level sources. An input signal may be connected to either the phono jacks or to the mini-jack. The left and right signal inputs are combin




                                                             

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                                                            Item #: RDL-DB-CIJ3

                                                            Availability: Usually ships in 3-10 business days

                                                            Our Price: $74.49

                                                            Add to Wishlist
                                                          • RDL RU-VCA6A  Digitally Controlled Six Channel Audio Attenuator

                                                            RDL RU-VCA6A Digitally Controlled Six Channel Audio Attenuator

                                                            The RU-VCA6A is a full-featured studio-quality dual-channel audio attenuator module for local and/or remote control of balanced or unbalanced line-level sources. The RU-VCA6A has six audio channels for level control of surround sound (5.1) or six individual analog audio channels. Each module can be remote controlled from a single or multiple locations. Rear-panel terminals provide flexible control options using a variety of RDL remote controls or OEM equipment.

                                                            Audio levels are controlled in 0.5

                                                                 

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                                                                Item #: RDL-RU-VCA6A

                                                                Availability: Usually ships in 3-10 business days

                                                                Our Price: $442.45

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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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