Radio Design Labs Products

555-ST-PA2 - RDL Two-Watt Utility Amplifier

Perfect for use as a local monitor amplifier and with music-on-hold telephone systems. It features a single unbalanced audio input, with adjustable gain, and two outputs. The first output delivers 2W RMS into an 8ohm load, the second delivers up to +12dBu into a 6...

Mfr Name: Radio Design Labs

Mfr Number: ST-PA2

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555-PS-24A - RDL Power Supply - 500mA

Designed specifically for use with all RDL modules. All models are single ended, 24VDC output. Output current: 500mA

Mfr Name: Radio Design Labs

Mfr Number: PS-24AS

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555-ST-DA3 - RDL Distribution Amplifier

Audio distribution amplifier allows bridging of any audio line, adjusting the gain (0~+20dB), and driving either high or low impedance, balanced or unbalanced loads. Typical applications: Audio distribution with up to 3 outputs Bridging a line for local dist...

Mfr Name: Radio Design Labs

Mfr Number: ST-DA3

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555-STA-1 - RDL Electronic Transformer Pair

Perfect for any line amplification, impedance or balanced/unbalanced conversion, this two channel line amplifier features bridging inputs, adjustable gain (up to 20db), or attenuation, and low impedance outputs, which act as both an electronic line transformer and...

Mfr Name: Radio Design Labs

Mfr Number: STA-1

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555-TX-10B - RDL Bridging Input Transformer

Add transformer isolation to any line level input Use as a 10Kohm input bridge on any audio line Provides balanced input and output Frequency response: 20Hz~20KHz THD: Passive device requires no power

Mfr Name: Radio Design Labs

Mfr Number: TX-10B

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555-0650 - EZ Series Stereo Audio Distribution Amplifier 1 x 4

The EZ series stereo audio distribution amplifier allows distribution of one audio source to four different amplifiers. Inputs include both unbalanced RCA and unbalanced 3.5mm, and outputs are unbalanced RCA.

Mfr Name: Radio Design Labs

Mfr Number: EZ-ADA4

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555-ST-MX3 - RDL Line Level Mixing Amplifier

Three channel audio mixer combines up to three line level signals to a single line level output. The input circuit accepts either balanced or unbalanced signals, either high or low impedance. The output is capable of driving high or low impedance, balanced or unba...

Mfr Name: Radio Design Labs

Mfr Number: ST-MX3

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555-ST-ACR2 - RDL Audio Controlled Relay

Accepts balanced or unbalanced input, and provides a DPDT relay output when the presence of an audio signal is detected. It is perfect when adding "audio-power-on" capability to existing equipment. Because the relay utilizes NO and NC contacts, it may also be used...

Mfr Name: Radio Design Labs

Mfr Number: ST-ACR2

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555-ST-PA6 - RDL Six-Watt Utility Amplifier

Compact single-channel amplifier features two balanced audio inputs, with adjustable gain, and delivers 6W RMS to an 8ohm load. Since each input is mixed equally, it is perfect for monitoring a stereo line from a single speaker. Built-in equalization circuit provi...

Mfr Name: Radio Design Labs

Mfr Number: ST-PA6

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555-TX-MVX - Manual Video Switch Two BNC IN, Single BNC OUT

Remote Operated Video Switch Module Versatile switching module provides switching control of standard NTSC composite video signals. This unit features an A and B input, with a single output. A/B switching requires simple SPST switch closure.

Mfr Name: Radio Design Labs

Mfr Number: TX-MVX

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555-0670 - EZ Series Stereo Audio Input Switch w/ RCA,3.5mm, & 1/4 headphone output

The EZ series stereo audio input switcher features four unbalanced RCA inputs, one unbalanced RCA output, and either a 3.5mm or 1/4" headphone output.

Mfr Name: Radio Design Labs

Mfr Number: EZ-HSX4

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555-0686 - EZ Series Mounting Accessory - Rack Adaptor 6 Increments

EZ Series Mounting Accessory - Rack Adaptor 6 Increments

Mfr Name: Radio Design Labs

Mfr Number: EZ-RA6

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555-TX-1A - RDL Adjustable Line Transformer

Provides transformer isolation between balanced line and unbalanced input Trim pot attenuation adjusts output from 4~24dB below input Input may be 10Kohm bridging or 600ohm terminated Frequency response: 20Hz~20KHz THD: Passive device requires no power

Mfr Name: Radio Design Labs

Mfr Number: TX-1A

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555-TX-LM2 - RDL Line Matching Transformer

Matches balanced 600ohm phone (or other line) into mic or line input Dual outputs; unbalanced line level and balanced mic level Frequency response: 20Hz~20KHz THD: Passive device requires no power

Mfr Name: Radio Design Labs

Mfr Number: TX-LM2

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555-RU-DA4D - RDL Audio Distribution Amplifier

Use in applications requiring stereo audio distribution with four outputs, or mono distribution with eight outputs. This unit provides multiple, isolated audio feeds, individual line level controls, audio presence indicators and gain from -15~+18dB. Input and outp...

Mfr Name: Radio Design Labs

Mfr Number: RU-DA4D

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