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Radio Design Labs

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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 Dante...

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      Item #: RDL-RU-LB4

      Availability: Usually ships in 3-10 business days

      Our Price: $504.09

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    • RDL STA-1 Dual Balanced/Unbalanced Line Amplifier -12 to 20 dB Gain

      RDL STA-1 Dual Balanced/Unbalanced Line Amplifier -12 to 20 dB Gain

      The STA-1 is a dual-channel line-level preamplifier with bridging inputs, adjustable gain or loss, and low-impedance outputs. Each of the two identical circuits is both an electronic line transformer and a line amplifier. Hook up the STA-1 just like a pair of audio transformers with gain. True dc amplifiers produce unsurpassed audio clarity, high common-mode rejection, ultra-low distortion and low noise. The STA-1 is perfect for most line amplification, impedance or balanced/unbalanced conversion. The...

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      Item #: STA1

      Availability: Usually ships in 3-10 business days

      Our Price: $150.28

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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: $29.11

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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. Features: Quiet Switching of Condenser Microphone Remote Microphone Soft‑Switching Switch a Mic‑Level Source to a Mic or Line Level Output Remote Toggle Switch or Push‑to‑Talk...

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      Item #: STM-2X

      Availability: Usually ships in 3-10 business days

      Our Price: $164.83

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

      RDL STM-2 Adjustable Gain Microphone Preamplifier - 35 to 65 dB Gain

      The RDL STM‑2 is a quality low‑noise microphone preamplifier designed for use in commercial sound, broadcast, and recording. The STM‑2 is very flexible, with gain adjustment from 35 to 65 dB, two balanced or unbalanced outputs, and available phantom supply input. Its ultra‑low distortion and low noise performance make it the best choice, even when larger preamps could be used. The STM 2 supply input is single ended and operates from 24 Vdc. Operation from 12 Vdc is possible...

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      Item #: STM-2

      Availability: In Stock

      Our Price: $145.54

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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-MVX is the ideal choice in installations where either a manual switch or an open-collector must switch video signals. VIDEO A is normally connected to COMMON. When the TRIG terminal is pulled to ground, VIDEO B is connected to COMMON and VIDEO A is disconnected. The TX-MVX utilizes a high-quality RF relay allowing the module to either route a single video source to one of two destinations, or switch two video sources to a single video destination. The actual switch (or other...

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      Item #: TX-MVX

      Availability: In Stock

      Our Price: $99.78

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    • RDL RU-PA518 10 W Stereo / 18 W Mono Audio Amplifier - 8 Ohm

      RDL RU-PA518 10 W Stereo / 18 W Mono Audio Amplifier - 8 Ohm

      The RU-PA518 features two modes of operation: stereo and bridged mono. Depending on the mode of operation, the RU-PA518 can deliver from 5 to more than 18 watts of RMS power at the output. In stereo mode, each of the two inputs feeds its respective left or right output. Front-panel level controls set the gain for both left and right channels. When the rear-panel switch is set to the bridge mode, the two inputs (A and B) are mixed together and fed to the output. In either the stereo or mono mode,...

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      Item #: RU-PA518

      Availability: Usually ships in 3-10 business days

      Our Price: $236.02

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    • RDL DB-TPS1A Active Single-Pair Sender - Twisted Pair Format-A - XLR microphone input with phantom

      RDL DB-TPS1A Active Single-Pair Sender - Twisted Pair Format-A - XLR microphone input with phantom

      The D SERIES-TPS1A modules are single-pair audio sending modules compatible with RDL Format-A twisted pair products. These modules are designed to be mounted in wall boxes, cabinets or other enclosures that allow users to connect audio sources. The -TPS1A models mount in RDL WB-1U and WB-2U wall boxes, or in standard U.S. electrical boxes. The D-TPS1A features a white front-panel laminate with gray lettering that matches RDL Decora©-style remote controls. The DB-TPS1A features a black front-panel...

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      Item #: RDL-DB-TPS1A

      Availability: Usually ships in 3-10 business days

      Our Price: $163.96

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    • RDL STA-2A Dual High Gain Line Amplifiers

      RDL STA-2A Dual High Gain Line Amplifiers

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

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      Item #: STA-2A

      Availability: Usually ships in 3-10 business days

      Our Price: $151.06

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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: Usually ships in 3-10 business days

      Our Price: $137.80

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    • RDL ST-ACR2 Line-Level Audio Controlled Relay - 5 to 50 s Delay

      RDL ST-ACR2 Line-Level Audio Controlled Relay - 5 to 50 s Delay

      The ST-ACR2 is an Audio Controlled Relay in the STICK-ON series. These products are designed for quick, convenient installation, and reliable operation in a variety of control applications. The ST-ACR2 is designed to switch on line level sources. Two multiturn trimmers are provided. The SENS potentiometer adjusts the audio input sensitivity. A threshold LED facilitates accurate adjustment. The module can be set to trigger on signals between -30 dBu and 0 dBu. The DELAY control sets the time required...

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      Item #: ST-ACR2

      Availability: Usually ships in 3-10 business days

      Our Price: $100.35

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    • RDL D-HA1A Format-A Stereo Headphone Amplifier

      RDL D-HA1A Format-A Stereo Headphone Amplifier

      The D SERIES-HA1A is a two pair receiver and audio headphone amplifier compatible with RDL Format A twisted pair products. Each -HA1A receives stereo audio and 24 Vdc power through a rear-panel RJ45 jack fed from a Format-A sender. The left and right audio signals received on pairs B and C of the twisted pair cable are amplified and fed to the left and right channels of the output 3.5 mm Mini-jack.The front panel provides the headphone output jack and a single-turn user volume control. There...

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      Item #: RDL-D-HA1A

      Availability: Usually ships in 3-10 business days

      Our Price: $120.11

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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. Features: 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: $77.48

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    • RDL D-RT2 Remote Control Selector

      RDL D-RT2 Remote Control Selector

      The front panel of the D-RT2 features two pushbuttons with two associated LEDs. Upon initial power-up, the OFF mode is selected. Touching the other button de-selects OFF and immediately selects ON. An LED adjacent to each button shows which mode is selected.In a typical installation, the D-RT2 may be used to turn an audio or video source on or off. To turn on an audio source, the D-RT2 may be connected to an RDL ST-SSR1 or ST-RX2 Solid-State Audio Switch. For video switching, an RDL TX-MVX...

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      Item #: RDL-D-RT2

      Availability: Usually ships in 3-10 business days

      Our Price: $95.55

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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 mounting...

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      Item #: RDL-D-SH1M

      Availability: Usually ships in 3-10 business days

      Our Price: $140.36

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

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

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

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      Item #: RDL-RU-LB4P

      Availability: Usually ships in 3-10 business days

      Our Price: $574.10

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

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

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

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      Item #: ST-SSR1

      Availability: In Stock

      Our Price: $108.10

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    • RDL DRA-35R RACK-UP DIN Rail Adapter

      RDL DRA-35R RACK-UP DIN Rail Adapter

      The DRA-35R provides DIN rail mounting for any RDL RACK-UP® or MAX RACK-UP module, allowing full access to the front and rear panels of the mounted modules. The DRA-35R attaches to a 35 mm DIN Rail. Features: Specifications:

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      Item #: RDL-DRA-35R

      Availability: Usually ships in 3-10 business days

      Our Price: $17.65

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    • RDL TX-J2 Unbalanced Input Transformer

      RDL TX-J2 Unbalanced Input Transformer

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

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      Item #: TX-J2

      Availability: In Stock

      Our Price: $59.79

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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...

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      Item #: PT-AMG2

      Availability: In Stock

      Our Price: $307.78

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    • RDL DB-SP1A 2 Watt Decora-Style 8 Ohm Loudspeaker

      RDL DB-SP1A 2 Watt Decora-Style 8 Ohm Loudspeaker

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

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      Item #: RDL-DB-SP1A

      Availability: Usually ships in 3-10 business days

      Our Price: $75.08

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    • RDL RU-MLA2T Dual Microphone / Line Preamplifier

      RDL RU-MLA2T 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 RDL...

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      Item #: RU-MLA2T

      Availability: Usually ships in 3-10 business days

      Our Price: $418.59

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    • RDL AV-XMN4 Microphone to DANTE Network Interface

      RDL AV-XMN4 Microphone to DANTE Network Interface

      The AV-XMN4 is an interface that converts four XLR microphone inputs to Dante network audio channels. Special software is not required to configure the AV-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 AV-XMN4 is a professional grade product with discrete mic preamplifiers...

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      Item #: RDL-AV-XMN4

      Availability: Usually ships in 3-10 business days

      Our Price: $729.95

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

      RDL ST-DA3 Line Level Distribution Amplifier - 1x3

      The ST-DA3 gives you the advantages of an audio distribution amplifier PLUS you can put it where you need it. The ST-DA3 allows bridging of any audio line, adjusting the gain, and driving up to three high or low impedance, balanced or unbalanced loads. The ST-DA3's wideband circuitry produces the unsurpassed pure clarity, low-distortion and low-noise for which RDL products are known. The ST-DA3 features RDL's SupplyFlex power input configuration. The module will operate directly from floating...

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      Item #: ST-DA3

      Availability: In Stock

      Our Price: $142.43

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    • RDL ST-PA6 6 W Mono Audio Amplifier - 8 Ohm

      RDL ST-PA6 6 W Mono Audio Amplifier - 8 Ohm

      The ST-PA6 represents the second generation of RDLs breakthrough in the traditional power vs. size ratio. Present technology permits features and performance at the most economical cost ever. The ST-PA6 offers 6 watts of power for a price you would expect to pay for 3 watts. The ST-PA6 features two balanced audio inputs, a gain control, equalization control and an 8 Ohm output. The output is designed to deliver a clean 6 watts RMS into an 8 Ohm speaker. Each input is a balanced bridge, with the...

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      Item #: ST-PA6

      Availability: In Stock

      Our Price: $98.27

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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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