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Radio Design Labs

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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 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: $27.99

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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 provides 24V, 12V or phantom

           

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          Item #: FP-MP1

          Availability: Usually ships in 3-10 business days

          Our Price: $218.49

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        • RDL ST-UMX3 3x1 Universal Audio Mixer - 3 Mic or Line Inputs x 1 Mic or Line Out

          RDL ST-UMX3 3x1 Universal Audio Mixer - 3 Mic or Line Inputs x 1 Mic or Line Out

          The ST-UMX3 is a three-channel audio mixer for combining mic-level or line-level signals to a single output. A MIC/LINE switch is provided for each input. A separate MIC/ LINE switch selects the output level. Each input features a separate preamplifier circuit, which isolates it from the other inputs. An audio taper single turn gain adjustment is provided for each of the three input preamps. Signals from the three preamps are actively summed and fed to the output amplifier which includes an RDL

             

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            Item #: ST-UMX3

            Availability: In Stock

            Our Price: $132.49

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          • RDL HR-DSX4 Digital Audio Selector - 4x1

            RDL HR-DSX4 Digital Audio Selector - 4x1

            The RDL HR-DSX4 is the ideal choice in installations requiring high quality source selection between digital audio signals. Solid-state switching is used to select one of four inputs. Each input may be fed through one of three jacks: S/PDIF optical, S/PDIF (or AES-3ID) coaxial or AES/EBU. The output is switch-selectable to provide an AES/EBU, S/PDIF coaxial, S/PDIF optical or AES-3ID output. The switch enables the appropriate output jack and any required electrical and data format conversion. Th

                 

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                Item #: HR-DSX4

                Availability: Usually ships in 3-10 business days

                Our Price: $643.49

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              • RDL PT-AMG2 Portable Audio Signal Generator & Monitor

                RDL PT-AMG2 Portable Audio Signal Generator & Monitor

                This portable audio instrument is comprised of a precision audio oscillator, precision level meter and speaker.

                The 700 Hz oscillator section features two outputs. The balanced XLR output is front-panel switch selectable for MIC or LINE level (pro level). The unbalanced output operates at -10 dBV (consumer). Output stability is suited to accurate bench top audio testing.

                The audio metering circuit features two inputs, an LED meter and a monitor speaker. The balanced input is front-panel switch sel

                   

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                  Item #: PT-AMG2

                  Availability: Usually ships in 3-10 business days

                  Our Price: $295.95

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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: Usually ships in 3-10 business days

                    Our Price: $95.95

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                  • RDL EZ-MPA2 Stereo Output Dual Microphone Preamplifier

                    RDL EZ-MPA2 Stereo Output Dual 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-MPA2

                        Availability: Usually ships in 3-10 business days

                        Our Price: $178.95

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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 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 RU-LB2 Line-Level Bi-Directional Network Interface

                            RDL RU-LB2 Line-Level Bi-Directional Network Interface

                            The RU-LB2 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-LB2 is a high quality converter that provides professional line-level outputs from two Dante network received audio channels. It also converts two professional or consumer line-level sources to Dante

                                 

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                                Item #: RDL-RU-LB2

                                Availability: Usually ships in 3-10 business days

                                Our Price: $419.20

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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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                                • RDL DDB-BN22 Wall-Mounted Bi-Directional Mic/Line Dante Interface 2 x 2

                                  RDL DDB-BN22 Wall-Mounted Bi-Directional Mic/Line Dante Interface 2 x 2

                                  The DDB-BN22 is a complete wall-mounted Dante audio network interface. It features two XLR mic or line inputs and two XLR mic or line outputs on the front panels. Special software is not required to configure the DDB-BN22. Each XLR input provides three switches that may be set from the front of the unit when the cover plate is not installed. One switch enables or disables P48 phantom; the second switch selects the mic or line gain range; the third switch sets the gain. Each XLR output provides







                                     

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                                    Item #: RDL-DDB-BN22

                                    Availability: Usually ships in 3-10 business days

                                    Our Price: $584.89

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                                  • RDL SF-ND2 Two Dante Network Audio Channels to Stereo Digital Audio Output Interface

                                    RDL SF-ND2 Two Dante Network Audio Channels to Stereo Digital Audio Output Interface

                                    The RDL SF-ND2 is a digital audio interface that converts two Dante network audio channels to a stereo digital audio output. The output is switch-selectable to provide an AES/EBU on XLR, or coaxial and optical S/PDIF. The switch enables the appropriate output jack and any required electrical and data format conversion. Special software is not required to configure the module. The SF-ND2 is a professional grade product for studio quality performance.

                                    The SF-ND2 is PoE powered. Valid PoE power and

                                         

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                                        Item #: RDL-SF-ND2

                                        Availability: In Stock

                                        Our Price: $382.84

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                                      • RDL DB-SH1 Stereo Headphone Amplifier - Decora panel with user level control

                                        RDL DB-SH1 Stereo Headphone Amplifier - Decora panel with user level control

                                        The DB-SH1 is used in applications requiring headphones of any impedance to be driven from consumer or professional audio sources. The DB-SH1 is ideally suited to applications as diverse as language translation, museums, interview studios and music stores. The module mounts conveniently in a precut opening in a wood or metal enclosure or in various RDL mounting accessories. The DB-SH1 is a dual channel headphone amplifier with balanced/unbalanced left and right inputs. Each input accepts operati



                                           

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                                          Item #: RDL-DB-SH1

                                          Availability: Usually ships in 3-10 business days

                                          Our Price: $156.60

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                                        • RDL PS-24V2 Universal Switching Power Supply

                                          RDL PS-24V2 Universal Switching Power Supply

                                          • Input: 100 to 240 VAC.
                                          • Output: 24 Vdc, 2 A (UL, CSA).
                                          • Dimensions: 2 in. (5 cm) x 1.33 in. (3.4 cm) x 4.75in. (12 cm), nominal.
                                          • Efficiency: ENERGY STAR Level IV.

                                           

                                          2 Types Available

                                          Item #: PS-24V2

                                          Availability: Usually ships in 3-10 business days

                                          Our Price: $64.49

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                                        • RDL TX-TPR6A Passive Single-Pair Receiver - Twisted Pair Format-A - Balanced audio line output

                                          RDL TX-TPR6A Passive Single-Pair Receiver - Twisted Pair Format-A - Balanced audio line output

                                          The TX-TPR6A is a single-pair audio receiving module compatible with RDL Format-A twisted pair products. A front-panel switch set during installation determines which of the three FORMAT-A pairs feeds the module output. The audio signal received from the selected pair of the RJ45 INPUT jack feeds the -10 dBV unbalanced RCA phono jack output and the +4 dBu balanced detachable terminal block output. A bridging transformer provides isolation between the twisted pair cable and the audio output.The

                                               

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                                              Item #: RDL-TX-TPR6A

                                              Availability: In Stock

                                              Our Price: $75.80

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                                            • RDL ST-TC1 Telephone System Coupler - CO Line Simulator

                                              RDL ST-TC1 Telephone System Coupler - CO Line Simulator

                                              The ST-TC1 is intended to be connected to an on-site telephone system switching unit KSU. It is NOT intended to be connected directly to a telephone CO line. Connections from the ST-TC1 go into the telephone switching unit as if the ST-TC1 was an incoming phone line.

                                              When the KSU seizes the line to the ST-TC1, a relay contact closure is provided which can be used to control a variety of equipment, such as a paging system or radio system. The closure is maintained as long as the line is seized. A

                                                 

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                                                Item #: ST-TC1

                                                Availability: Usually ships in 3-10 business days

                                                Our Price: $100.95

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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 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 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-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-PCR1 Paging Controlled Relay

                                                        RDL TX-PCR1 Paging Controlled Relay

                                                        The TX-PCR1 is the ideal choice in many applications where switching needs to be controlled from a constant-voltage amplified audio source. The module will trigger on any program material, with paging sources being the most common. The TX-PCR1 includes both an open-collector SLAVE output to control other modules or equipment and a DPDT high power switching relay suited to switching speaker loads.

                                                        The amplified audio source is connected using a detachable terminal block. A front-panel switch is pr

                                                           

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                                                          Item #: RDL-TXPCR1

                                                          Availability: In Stock

                                                          Our Price: $130.95

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                                                        • RDL SF-XMN4 Microphone To Network Interface

                                                          RDL SF-XMN4 Microphone To Network Interface

                                                          The SF-XMN4 is an interface that converts four XLR microphone inputs to Dante network audio channels. Special software is not required to configure the SF-XMN4. Each XLR input is equipped with a switch to set the gain for dynamic or condenser microphones. A dual-LED VU meter displays the level for each input to facilitate selection of the ideal gain range. P48 phantom voltage is supplied to each microphone input. The SF-XMN4 is a professional grade product with discrete mic preamplifiers for stu

                                                               

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                                                              Item #: RDL-SF-XMN4

                                                              Availability: Usually ships in 3-10 business days

                                                              Our Price: $783.92

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                                                            • Radio Design Labs RU-ADA4D 4 Channel Stereo Audio Distribution Amplifier

                                                              Radio Design Labs RU-ADA4D 4 Channel Stereo Audio Distribution Amplifier

                                                              The RU-ADA4D is a four 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 eight 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 dBu b

                                                                   

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                                                                  Item #: RDL-RU-ADA4D

                                                                  Availability: Usually ships in 3-10 business days

                                                                  Our Price: $241.49

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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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