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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: In Stock

          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: In Stock

          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: In Stock

            Our Price: $145.25

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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: Usually ships in 3-10 business days

                Our Price: $57.49

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              • RDL RU-LB2P Line-Level Bi-Directional Network Interface - PoE

                RDL RU-LB2P Line-Level Bi-Directional Network Interface - PoE

                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-LB2P

                    Availability: Usually ships in 3-10 business days

                    Our Price: $459.50

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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 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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                      • Radio Design Labs D-SH1M Stereo Headphone Amplifier

                        Radio Design Labs D-SH1M Stereo Headphone Amplifier

                        The D/DS-SH1M is used in applications requiring headphones of any impedance to be driven from consumer or professional audio sources. It is ideally suited to applications as diverse as language translation, museums, interview studios and music stores. The -SH1 is a dual channel headphone amplifier with balanced/unbalanced left and right inputs. Each input accepts operating levels between -20 dBV and +20 dBu. Two recessed slide switches located on the side of the rear enclosure are set prior to m

                           

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                          Item #: RDL-D-SH1M

                          Availability: Usually ships in 3-10 business days

                          Our Price: $134.95

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                        • 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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                        • 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 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 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-HDA6 1x6 Stereo Headphone Distribution Amp - Rear-Panel Outputs

                                  RDL EZ-HDA6 1x6 Stereo Headphone Distribution Amp - Rear-Panel Outputs

                                  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-HDA6

                                      Availability: Usually ships in 3-10 business days

                                      Our Price: $172.95

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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 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 TX-AFC1M Unbalanced to Balanced Audio Transformer - RCA / XLR

                                      RDL TX-AFC1M Unbalanced to Balanced Audio Transformer - RCA / XLR

                                      • Studio Quality Bifilar Audio Transformer
                                      • Connectorized Audio Format Conversion
                                      • Galvanic Isolation with the Convenience of RDL TXs
                                      • Gold Contacts on Input and Output
                                      • Unbalanced to Balanced Conversion
                                      • Unity Gain
                                      • Frequency Response: 20 Hz to 20 kHz (+/- 0.1 dB)
                                      • THD: < 0.06% (50 Hz to 20 kHz, -10 dBV input)
                                      • 0.0015% (Typ. 1 kHz, -10 dBV input)
                                      • Input: -10 dBV (+22 dBu max.), 10 k Ohm Phono jack
                                      • Insertion Loss: 0.25 dB (20 Ohm source; 10 k Ohm load)
                                      • Insertion Loss: 0.25 dB (20 Ohm source; 10 k Ohm load)

                                       

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                                      Item #: TX-AFC1M

                                      Availability: Usually ships in 3-10 business days

                                      Our Price: $90.95

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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 EZ-HK1 Stereo Audio Hum Killer

                                          RDL EZ-HK1 Stereo Audio Hum Killer

                                          The EZ-HK1 is a superior-quality stereo audio transformer isolation module for use with unbalanced, high impedance audio inputs. Input and output connections are provided on gold-plated RCA jacks.

                                          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 through a rear-panel ground-lift switch.

                                          The EZ-HK1 eliminates hum due to ground loops when it is installed between an un

                                             

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                                            Item #: RDL-EZ-HK1

                                            Availability: Usually ships in 3-10 business days

                                            Our Price: $83.49

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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 STP-1 Universal Audio Attenuator - 2 Channel

                                                RDL STP-1 Universal Audio Attenuator - 2 Channel

                                                The STP-1 is a pair of convenient attenuator pads that can be located at the precise location that attenuation is needed. The low-cost STP-1 eliminates the costly labor of figuring and assembling fixed pads. Multi-turn trimmers in the STP-1 permit precise adjustment of levels without the need to connect any jumpers or external resistors. The STP-1 operates in either high or low impedance, balanced or unbalanced circuits. The wiring legend is printed on the case for easy installation.

                                                • Audio Level




                                                 

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                                                Item #: STP-1

                                                Availability: In Stock

                                                Our Price: $59.49

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                                              • 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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                                                  • 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 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: In Stock

                                                        Our Price: $74.49

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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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