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Home » Accessories & Parts & Hardware » Hardware, Parts, Acoustic » Circuit Modules, Kits » Radio Design Lab, RDL, Circuit Modules

Radio Design Lab, RDL, Circuit Modules

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Radio Design Labs TX-1W On-Hold Music Amplifier

Radio Design Labs TX-1W On-Hold Music Amplifier

radio design labs' tx-1w is part of the group of versatile tx series products from radio design labs. the tx series feature the advanced circuitry for which rdl products are known, combined with durable, quality connectors. the ...
73.22 97.93 25

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Radio Design Labs ST-SSR1 Solid State 'Relay' Audio Switch

Radio Design Labs ST-SSR1 Solid State 'Relay' Audio Switch

radio design labs' st-ssr1 is part of a group of products in the stick-on series from radio design labs. the durable bottom adhesive permits quick, permanent mounting nearly anywhere, or use it with rdl's racking accessories. the st-ssr1 ...
109.86 146.95 25

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Radio Design Labs ST-UMX3 Universal Audio Mixer

Radio Design Labs ST-UMX3 Universal Audio Mixer

radio design labs' 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 ...
139.29 186.32 25

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Radio Design Labs ST-DA3 1x3 Line Level Distribution Amplifier

Radio Design Labs ST-DA3 1x3 Line Level Distribution Amplifier

the rdl 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 either high or low impedance, balanced or ...
145.03 193.99 25

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Radio Design Labs FP-PA20 20W, 8 Ohm Audio Power Amplifier

Radio Design Labs FP-PA20 20W, 8 Ohm Audio Power Amplifier

note: radio design labs' ps-24v2a power supply is not included but is required in order to power this product.  please see the "accessories" tab or click here for more information on the ps-24v2a power supply. the ...
149.91 200.54 25

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Radio Design Labs ST-ACR1 Line-Level Audio Controlled Relay

Radio Design Labs ST-ACR1 Line-Level Audio Controlled Relay

st-acr1 module is designed to switch on line-level sources. its relatively short release delay time makes it the optimum choice for voice applications.each of the st-acr products is an audio controlled relay in the group of stick-on series ...
102.21 136.72 25

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Radio Design Labs STM-2 Adjustable Microphone to Line Preamplifier

Radio Design Labs STM-2 Adjustable Microphone to Line Preamplifier

radio design labs' 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 off to +65 db, two balanced or unbalanced ...
147.95 197.92 25

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Radio Design Labs STR-19A Rackmount System for 12 Stick-On Units

Radio Design Labs STR-19A Rackmount System for 12 Stick-On Units

radio design labs' str-19a racking system holds up to 12 stick-ons in a 19" rack and only occupies two rack spaces.
136.70 182.87 25

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Radio Design Labs FP-PA35A  35 W Mono Audio Amplifier with 25/70/100V Output

Radio Design Labs FP-PA35A 35 W Mono Audio Amplifier with 25/70/100V Output

radio design labs' fp-pa35a is the ideal choice in many applications where multiple 25 v, 70 v or 100 v speakers in a zone need to be powered from a single audio power amplifier.the fp-pa35a features a balanced line level input that may be ...
223.08 298.41 25

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Radio Design Labs STA-1 Dual-Channel Balanced/Unbalanced Line Amplifier with 12-20dB Gain

Radio Design Labs STA-1 Dual-Channel Balanced/Unbalanced Line Amplifier with 12-20dB Gain

radio design labs' sta-1 is a dual-channel line amplifier with bridging inputs, adjustable gain or loss, and low impedance outputs.  each of the two identical circuits are both an electronic line transformer and a line ...
152.63 204.17 25

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Radio Design Labs ST-ACR2 Line-Level Audio Controlled Relay

Radio Design Labs ST-ACR2 Line-Level Audio Controlled Relay

each of the st-acr products is an audio controlled relay in the group of stick-on series products by radio design labs. these products are designed for quick, convenient installation, and reliable operation in a variety of control ...
100.81 134.84 25

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Radio Design Labs STA-2A Dual Channel High Output Line Amplifier

Radio Design Labs STA-2A Dual Channel High Output Line Amplifier

radio design labs' sta-2a is a dual-channel, line-level audio preamplifier. each channel is identical. the audio inputs are bridged at 20 kw and accept either an unbalanced or a balanced audio signal. gain is adjustable from unity gain to ...
160.23 214.33 25

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Radio Design Labs STA-1M Audio Line Amplifier

Radio Design Labs STA-1M Audio Line Amplifier

radio design labs' sta-1m allows bridging any audio line, adjusting the gain, and driving a balanced or unbalanced line. the circuit design allows the input to accept either balanced or unbalanced signals, of either high or low impedance. ...
111.60 149.28 25

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Radio Design Labs ST-ACR1M Audio-Controlled Mic Level Relay

Radio Design Labs ST-ACR1M Audio-Controlled Mic Level Relay

each of the st-acr products is an audio controlled relay in the group of stick-on series products by radio design labs. these products are designed for quick, convenient installation, and reliable operation in a variety of control ...
102.46 137.05 25

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Radio Design Labs STD-150 Passive Audio Divider/Combiner - 150 Ohm

Radio Design Labs STD-150 Passive Audio Divider/Combiner - 150 Ohm

radio design labs' std series of products is part of the stick-on line of products from radio design labs. it is a resistive branching network with rf filtering on each of the four channels. any channel, a through d, may be either an input ...
56.24 76.39 26

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Radio Design Labs ST-MX3 Line Level Mixer

Radio Design Labs ST-MX3 Line Level Mixer

radio design labs; st-mx3 is part of a group of products in the stick-on series from radio design labs. the durable bottom adhesive permits quick, permanent mounting nearly anywhere, or use it with rdl's racking accessories. the st-mx3 ...
129.36 173.02 25

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Radio Design Labs D-J2 Mic/Line Input Input Assembly with RCA Jacks

Radio Design Labs D-J2 Mic/Line Input Input Assembly with RCA Jacks

radio design labs' d-j2 is a complete unbalanced audio input panel assembly.  the front panel features two phono jacks intended for mono or stereo consumer level sources.  left and right are combined and balanced through audio ...
49.01 65.55 25

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Radio Design Labs TX-LC2 Active Audio Combiner/Balanced Line Converter

Radio Design Labs TX-LC2 Active Audio Combiner/Balanced Line Converter

radio design labs' tx-lc2 is part of the group of versatile tx series products from radio design labs. the tx series feature the advanced circuitry for which rdl products are known, combined with durable, quality connectors. the ...
99.87 133.58 25

In Stock
Free Shipping Available
Radio Design Labs STD-10K Passive Audio Divider/Combiner - 10 kOhm

Radio Design Labs STD-10K Passive Audio Divider/Combiner - 10 kOhm

radio design labs' std series of products is part of the stick-on line of products from radio design labs. it is a resistive branching network with rf filtering on each of the four channels. any channel, a through d, may be either an input ...
57.62 77.07 25

In Stock
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Radio Design Labs ST-LCR1 Logic Controlled Relay

Radio Design Labs ST-LCR1 Logic Controlled Relay

radio design labs' st-lcr1 logic controlled relay is part of the group of products in the stick-on series by radio design labs. these products are designed for quick, convenient installation, and reliable operation with a variety of ...
78.47 104.97 25

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Radio Design Labs ST-VP2 Automatic Ducking Module

Radio Design Labs ST-VP2 Automatic Ducking Module

note: radio design labs' ps-24as power supply is not included but is required in order to power this product. please see the "accessories" tab or click here for more information on the ps-24as power supply. radio ...
161.86 216.51 25

Usually ships in 7-14 business days.
Need it sooner? Call us!
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Radio Design Labs STD-600 Passive Audio Divider/Combiner - 600 Ohm

Radio Design Labs STD-600 Passive Audio Divider/Combiner - 600 Ohm

radio design labs' std series of products is part of the stick-on line of products from radio design labs. it is a resistive branching network with rf filtering on each of the four channels. any channel, a through d, may be either an input ...
57.27 76.61 25

In Stock
Free Shipping Available
Radio Design Labs STM-1 Microphone to Line Preamplifier

Radio Design Labs STM-1 Microphone to Line Preamplifier

radio design labs' stm-1 is part of the group of stick-on products from radio design labs. the stm-1 is a quality microphone preamplifier designed for use in commercial sound, broadcast, and recording applications. its compact size makes ...
108.00 144.45 25

Usually ships in 7-14 business days.
Need it sooner? Call us!
Free Shipping Available
Radio Design Labs STM-3 Microphone Preamplifier

Radio Design Labs STM-3 Microphone Preamplifier

radio design labs' stm-3 is part of the group of "stick-on" products from radio design labs. the stm-3 is a quality microphone preamplifier designed for use in commercial sound, broadcast, and recording applications. its compact size makes ...
169.65 226.94 25

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Free Shipping Available
Showing Products 1 - 24 of 70
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