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Audio Routing & Distribution Audio Routing & Distribution

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Hum Eliminators Hum Eliminators

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Tone Generators & Sound Masking Tone Generators & Sound Masking

Vocal Processors Vocal Processors

Volume Controls & Attenuators Volume Controls & Attenuators

Radio Design Labs STM-2
Radio Design Labs STM-2 Adjustable Gain Microphone Preamplifier
MFR # STM-2 UPC # 813721011053
  • Low-Noise Mic Preamp
  • Adjustable Output Level
  • High or Low Impedance Mic Inputs
  • Mic Input to 2 Line Outputs
  • Two Balanced or Unbalanced Outputs
  • Phantom Capability
  • RF-Filtered Inputs

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Radio Design Labs STM-2 3011 Adjustable Gain Microphone Preamplifier - 35 to 65 dB Gain STM-2 813721011053 $143.91
You Pay: $143.91
Radio Design Labs STP-1
Radio Design Labs STP-1 Universal Audio Attenuator - 2 Channel
MFR # STP-1 UPC # 813721011268
  • Audio Level Attenuation
  • Adjust Audio Level into Equipment
  • Preset Audio Levels
  • Precisely Match Audio Levels
  • Increase Audio Input Headroom
  • 2 Adjustable Attenuators in 1 Package

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Radio Design Labs STP-1 3025 Universal Audio Attenuator - 2 Channel STP-1 813721011268 $60.39
You Pay: $60.39
Lexicon MX200
Lexicon MX200 Dual Reverb Effects Processor
MFR # MX200 UPC # 691991500169
  • 16 Legendary Lexicon Reverbs
  • Dual-Processor Design
  • dbx Dynamics
  • 4 Routing Configurations
  • 99 Factory & 99 User Programs
  • USB "Hardware Plug-In" Feature
  • MX-Edit Editor/Librarian Software

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Lexicon MX200 248 Stereo Reverb/Effects Processor with USB "Hardware Plug-In" Capability MX200 691991500169 $199.00
You Pay: $199.00
Behringer SRC2496
Behringer Ultramatch Pro SRC2496 Converter
MFR # SRC2496 UPC # 689076812283
  • 24-bit/96kHz AD/DA Conversion
  • 2 Channels
  • Simultaneous Outputs
  • Sample Rate Sync
  • Digital Patch Bay Function
  • XLR, RCA & Optical Outputs

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Behringer SRC2496 41591 24-Bit/96 kHz A/D & D/A and Sample Rate Converter SRC2496 689076812283 $199.99
You Pay: $199.99
Radio Design Labs TX-1A
Radio Design Labs TX-1A Balanced to Unbalanced Transformer - Adjustable
MFR # TX-1A UPC # 813721011404
  • Transformer Isolation
  • Adjustable Output
  • 10KΩ Bridging or 600Ω Terminated
  • 20Hz-20kHz Frequency Response
  • Terminal Block Connections

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Radio Design Labs TX-1A 3049 Balanced to Unbalanced Transformer - Adjustable TX-1A 813721011404 $37.39
You Pay: $37.39
Radio Design Labs ST-ACR1
Radio Design Labs ST-ACR1 Line-Level Audio Controlled Relay - 0.5 to 5 s
MFR # ST-ACR1 UPC # 813721011152
  • Switching Controlled by Audio Signal
  • Sensing of Line-Level Signal
  • Silence Sensing
  • DPDT Switching Contacts
  • Open-Collector Slave Output

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Radio Design Labs ST-ACR1 2984 Line-Level Audio Controlled Relay - 0.5 to 5 s Delay ST-ACR1 813721011152 $99.40
You Pay: $99.40
Radio Design Labs STD-150
Radio Design Labs STD-150 Passive Audio Divider/Combiner - 150 Ω
MFR # STD-150 UPC # 813721011237
  • 150 Ω Operation
  • Combine Audio Signals to a Single Output
  • Filter RF from an Audio Line
  • Combine Stereo Signals
  • Feed a Mono Signal to Stereo Inputs
  • Combine Multiple Mics to a Single Amp
  • Compactness of RDL Stick-Ons

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Radio Design Labs STD-150 2992 Passive Audio Divider/Combiner - 150 Ω STD-150 813721011237 $55.54
You Pay: $55.54
Radio Design Labs ST-SSR1
Radio Design Labs ST-SSR1 Line-Level Audio Switch - 2x1
MFR # ST-SSR1 UPC # 813721011190
  • Switch Line Level Sources
  • Select Between Two Balanced Lines
  • Silent Audio Switching
  • Switching Without Hard Relay Contacts
  • Fast Switching for Audio Muting
  • Selection by Open-Collector Logic

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Radio Design Labs ST-SSR1 3036 Solid State Audio Relay - 2x1 ST-SSR1 813721011190 $106.85
You Pay: $106.85
Radio Design Labs TX-10B
Radio Design Labs TX-10B Bridging Input Transformer
MFR # TX-10B UPC # 813721011435
  • Add Transformer Isolation
  • To Any Line-Level RDL Product Input
  • 20Hz-20kHz Frequency Response
  • Balanced Input & Output
  • Terminal Block Connections

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Radio Design Labs TX-10B 3048 Bridging Input Transformer TX-10B 813721011435 $41.59
You Pay: $41.59
Radio Design Labs ST-ACR2
Radio Design Labs ST-ACR2 Line-Level Audio Controlled Relay - 5 to 50 s Delay
MFR # ST-ACR2 UPC # 813721011176
  • Switching Controlled by Audio Signal
  • Sensing of Line-Level Signal
  • Silence Sensing
  • DPDT Switching Contacts
  • Open-Collector Slave Output

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Radio Design Labs ST-ACR2 2986 Line-Level Audio Controlled Relay - 5 to 50 s Delay ST-ACR2 813721011176 $98.04
You Pay: $98.04
Radio Design Labs STD-10K
Radio Design Labs STD-10K Passive Audio Divider/Combiner - 10 kΩ
MFR # STD-10K UPC # 813721011251
  • 10 kΩ Operation
  • Combine Audio Signals to a Single Output
  • Filter RF from an Audio Line
  • Combine Stereo Signals
  • Feed a Mono Signal to Stereo Inputs
  • Combine Multiple Mics to a Single Amp
  • Compactness of RDL Stick-Ons

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Radio Design Labs STD-10K 2994 Passive Audio Divider/Combiner - 10 kΩ STD-10K 813721011251 $56.04
You Pay: $56.04
Radio Design Labs STM-1
Radio Design Labs STM-1 Microphone Preamplifier
MFR # STM-1 UPC # 813721011046
  • High or Low Impedance Input Mic Preamp
  • Fixed 50 dB Gain for Consistency
  • Balanced or Unbalanced Output
  • Phantom Capability
  • RF-Filtered Inputs and Outputs
  • Excellent Performance
  • Stick-On Convenience

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Radio Design Labs STM-1 3010 Microphone Preamplifier - 50 dB Gain STM-1 813721011046 $105.02
You Pay: $105.02
Rolls HE18
Rolls HE18 Buzz Off Hum Eliminator
MFR # HE18 UPC # 675889000184
  • Hum & Buzz Remover
  • Passive, Requires No Power
  • Converts Balanced to Unbalanced
  • Converts Unbalanced to Balanced

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Rolls HE18 3683 Buzz Off - 2 Channel Buzz and Hum Eliminator, Converts Unbalanced Signals to Balanced, 1/4" & RCA Inputs & Outputs HE18 675889000184 $38.00
You Pay: $38.00
Radio Design Labs FP-ALC2
Radio Design Labs FP-ALC2 Automatic Level Control (Stereo)
MFR # FP-ALC2 UPC # 813721012548
  • RCA Jack I/O
  • Consistent Volume Levels
  • Self-Adjusting Attack & Release
  • Split-Band AGC
  • Flat-Pak Convenience

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Radio Design Labs FP-ALC2 2905 Automatic Level Control - Stereo - RCA Jacks FP-ALC2 813721012548 $247.94
You Pay: $247.94
Shure A15RF
Shure A15RF In-Line RF Interference Attenuator
MFR # A15RF UPC # 042406088855
  • Reduces Interference
  • Passes Phantom Power
  • XLR In/Out
  • Can Use at Both Ends
  • Great for Your Toolbox!

Entry in FP15 Drawing with Purchase!
Every Shure purchase in April is automatically entered to win a FP15 Wireless System with Waterproof Case!

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Entry in FP15 Drawing with Purchase!: $0.00
Shure A15RF 5709 In-Line RF Filter - XLR In/Out - Passes Phantom Power A15RF 042406088855 $43.75
You Pay: $43.75
Rolls MP13
Rolls MP13 Mini-Mic Preamp
MFR # MP13 UPC # 675889000139
  • Single-Channel Design
  • XLR & 1/8" Inputs
  • XLR & 1/4" Outputs
  • Gain Control with Clip Indicator
  • Phantom Power for Condensers
  • Includes Power Adapter

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Rolls MP13 4128 Mini-Mic Single Channel Microphone Preamplifier MP13 675889000139 $56.00
You Pay: $56.00
Radio Design Labs STD-600
Radio Design Labs STD-600 Passive Audio Divider/Combiner - 600 Ω
MFR # STD-600 UPC # 813721011244
  • 600 Ω Operation
  • Combine Audio Signals to a Single Output
  • Filter RF from an Audio Line
  • Combine Stereo Signals
  • Feed a Mono Signal to Stereo Inputs
  • Combine Multiple Mics to a Single Amp
  • Compactness of RDL Stick-Ons

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Radio Design Labs STD-600 2993 Passive Audio Divider/Combiner - 600 Ω STD-600 813721011244 $55.71
You Pay: $55.71
Atlas Sound AT35-RM
Atlas Sound AT35-RM
MFR # AT35-RM UPC # 612079179541 35W 70.7V Commercial Attenuator for use with Rack Mount Panels
Free Shipping (Orders over $49)
Atlas Sound AT35-RM 8137 35W 70.7V Commercial Attenuator for use with Rack Mount Panels AT35-RM 612079179541 $21.99
You Pay: $21.99
Radio Design Labs AV-HK1
Radio Design Labs AV-HK1 Hum Killer Transformer (RCA)
MFR # AV-HK1 UPC # 813721013569
  • Stereo Audio Isolation Transformer
  • Dual RCA Inputs and Outputs
  • Ground Isolation in Unbalanced Line
  • Ground-Loop Elimination
  • Unbalanced Stereo Galvanic Isolation
  • Isolation in Rugged Field Case
  • Portable or Permanent Isolation Module

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Radio Design Labs AV-HK1 4423 Hum Killer Stereo Audio Isolation Transformer - Dual RCA Inputs and Outputs AV-HK1 813721013569 $89.72
You Pay: $89.72
Shure A15AS
Shure A15AS In-line Switchable Attenuator
MFR # A15AS UPC # 042406054010
  • 15dB, 20dB or 25dB Attenuation
  • Passes Phantom Power
  • XLR Input & Output
  • Full Magnetic Shield
  • Steel, Gray Enamel Finished Case

Entry in FP15 Drawing with Purchase!
Every Shure purchase in April is automatically entered to win a FP15 Wireless System with Waterproof Case!

Free Shipping (Orders over $49)
In Stock Entry in FP15 Drawing with Purchase!: $0.00
Shure A15AS 5704 Switchable In-Line Attenuator (15, 20, 25 dB) A15AS 042406054010 $40.00
You Pay: $40.00
Radio Design Labs STM-3
Radio Design Labs STM-3 High Gain Microphone Preamplifier
MFR # STM-3 UPC # 813721011060
  • Low-Noise, High-Gain, Mic Preamp
  • Adjustable Output Levels
  • High or Low Impedance Mic Inputs
  • Mic Input to Line Outputs
  • 2 Balanced or Unbalanced Outputs
  • Phantom Capability
  • RF-Filtered Inputs

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In Stock
Radio Design Labs STM-3 3013 High Gain Microphone Preamplifier - 45 to 75 dB Gain STM-3 813721011060 $165.00
You Pay: $165.00
Atlas Sound AT100-RM
Atlas Sound AT100-RM
MFR # AT100-RM UPC # 612079179589 100W 70.7V Commercial Attenuator for use with Rack Mount Panels
Free Shipping (Orders over $49)
Atlas Sound AT100-RM 8138 100W 70.7V Commercial Attenuator for use with Rack Mount Panels AT100-RM 612079179589 $23.99
You Pay: $23.99
Radio Design Labs ST-LCR1
Radio Design Labs ST-LCR1 Logic Controlled Relay - Momentary
MFR # ST-LCR1 UPC # 813721011138
  • 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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Radio Design Labs ST-LCR1 3005 Logic Controlled Relay - Momentary ST-LCR1 813721011138 $76.32
You Pay: $76.32
Rolls MS111
Rolls MS111 MicSwitch Microphone Muting Switch
MFR # MS111 UPC # 675889011104
  • Latching or Momentary Mute
  • Male & Female XLR Connections
  • Passes Phantom Power
  • Reversible Switch
  • Can be Stand Mounted

Free Shipping (Orders over $49)
Rolls MS111 11279 MicSwitch - Momentary/Latching Microphone Muting Switch MS111 675889011104 $44.00
You Pay: $44.00

Signal Processors


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