Products, RDL

RDL ST-VOX1
Audio Control, Vox Relay

The ST-VOX1 is an Audio Controlled Relay in the STICK-ON® series. When used in intercom or talkback applications, the ST-VOX1 may be triggered directly from an unbalanced microphone. In many such installations the microphone or other audio source must be preamplified, making the ST-VOX1 an…

RDL SM-K12
Stick On Mounting Strip

The SMK-12 allows removable surface or edge mounting of RDL Stick-Ons onto a panel with velcro fasteners. Panel attaches to surface with screws or foam adhesive pads.

RDL STA-1
Interface Amplifier

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…

RDL STM-2
Mic Preamp

The 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 lownoise…

RDL ST-MX2
2 Channel Mic/Line Mixer

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…

RDL FP-UBC2
Converter, Unbalanced to Balanced, 2 Channel

The FP-UBC2 is the ideal choice for connectorized conversion from unbalanced to balanced audio. This module features two identical channels. Gold-plated phono jacks are utilized for each unbalanced input channel. Each output is balanced, connected through an XLR jack. A gain trim potentiometer is…

RDL ST-UBA2
Interface Amplifier, Unbalanced to Balanced

The Radio Design Labs STU-BA2 two-channel interface amplifier is used in any application requiring conversion from unbalanced consumer format signals to professional +4 dBu. It may be used to balance audio from CD players, cassette decks, computer sound cards, televisions, and a wide variety of…

RDL RU-SH1
Stereo Headphone Amp- Rack-up Series, Level Control

The RU-SH1 is a dual channel headphone amplifier that can drive high or low impedance headsets in stereo or mono. If features balanced/unbalanced left and right inputs that accept operating levels between -20 dBV and +20 dBu. It mounts in RACK-UP series rack mounts or in various RDL mounting…

RDL STM-3
Mic Preamp

The STM-3 is a quality low-noise microphone preamplifier designed for use in surveillance, commercial sound, broadcast, and recording where higher than normal gain is required. The STM-3 is very flexible, with gain adjustment from 45 to 75 dB, two balanced or unbalanced outputs, and available…

RDL ST-OSC2B
Oscillator 100 HZ/400 HZ

Each of the ST-OSC2 products is a Dual Audio Oscillator. These products are designed for quick, convenient installation, and reliable operation in a variety of audio applications. The ST-OSC2 products feature RDL's SupplyFlex power input configuration. The module will operate directly from floating…

RDL TX-J2
Unbalanced Input Transformer

The RDL TXJ2 is an unbalanced-to-balanced transformer with two unbalanced RCA inputs and one balanced screw terminal output.Features: • Mix two unbalanced audio signals to mono balanced • Combine stereo into mono with balanced output • Unbalanced to balanced conversion without gain…

RDL ST-SX4
4 Input Switcher

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…

RDL RU-AVX4
Audio Video Switcher

The RDL RU-AVX4 switches one output between four sets of audio L/R and video consumer RCA inputs, with front-panel durable pushbuttons and rear panel terminal block connections for remote operation. Video signal quality, audio performance and pushbutton durability are equal to that found in…

RDL DD-BN22
Bi-Directional Mic/Line Dante Interface 2 x 2 w/PoE -White

The DD-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 DD-BN22. Each XLR input provides three switches that may be set from the front of the…

RDL ST-EQ3
3 Band Equalizer

Radio Design Labs' Stick-Ons are compact, high-quality audio interface devices that can be directly and discreetly mounted on equipment, under counter tops, or combined in rack mount systems. The ST-EQ3 is a 3-band equalizer. Equalization is accomplished by three active circuits, each controlling a…

RDL RU-MX4
4 Ch Mic/Line Mixer w/Compressor/Limiter

The RU-MX4 4-channel mic/line mixer is the ideal choice in many applications where a combination of balanced mic and/or unbalanced line-level signals needs to be mixed. Balanced connections use XLR connectors, and unbalanced signals are coupled through RCA jacks. Each of the four inputs can accept…

RDL STR-H6A
6 unit rackmount for STICK-ON series

The STR-H6A rack mounts 6 STICK-ON modules. This adapter fits 10.4" racks.

RDL PS24AS-BSTOCK
24 VDC Switching Power Supply, North American AC Plug, 500 mA, dc Plug B Stock

The RDL PS-24AS is a 24 Vdc switching power supply with a North American AC plug.RDL PS-24AS Specifications: • Input: 100 to 240 VAC • Output: 24 Vdc, 500 mA (UL, CSA) • Dimensions: 1.65 in. (4.2 cm) x 2.75 in. (7 cm) x 1.45 in. (3.7 cm), nominal • Efficiency: ENERGY STAR Level IV

RDL ST-PH1
Stereo Phono Preamp

The ST-PH1 is a stereophonic phono preamplifier. Each of the two channel circuits is identical. The ST-PH1 has standard 47 kΩ impedance unbalanced phono cartridge inputs. Equalization follows the RIAA curve. Each output is capable of driving balanced or unbalanced, high or low impedance loads.…

RDL ST-PA2
2 Watt Utility Power Amplifier

The ST-PA2 features a single, unbalanced audio input, a gain control, and two outputs. The first output is designed to deliver a clean 2 watts RMS into an 8 Ω speaker. The second output is intended to drive 600 Ω transformers, typically on equipment inputs. This makes the ST-PA2…

RDL RU-MLA2
Dual Mic/Line Audio Pre-amp

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…

RDL HR-MCP2
Dual Channel Mic Compressor

The Radio Design Labs HR-MCP2 dual-channel microphone compressor offers full studio-quality low-noise performance at any gain setting while delivering a consistent audio output level over wide variations (up to 25 dB) in the microphone input level. Rear-panel switches let you set each output to mic…

RDL ACM-3
AM Noise Monitor

RDL's ACM technology is the only time-proven, industry accepted method of controlling Synchronous AM Noise (the elusive FM transmission bandwidth variations that aggravate multipath artifacts in listeners' receivers). Hundreds of top performing FMs in every major U.S. market turn to ACM technology…

RDL FP-RRA
Rack Adaptor For RDL FLAT-PAK

Specially-made RDL rack rail adaptor (looks like a blank front panel with room for up to three Flat-Paks on the back side) for Flat-Pak series audio interfaces.

RDL SF-XMN4
Microphone to Network Interface - Dante

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…