• 4 inputs: 1 MIC (Lo-Z), 1 AUX (Hi-Z), 1 TEL, plus 1 selectable MIC or AUX
• Each input controlled by an independent volume control
• Treble and bass controls
• AUX muting by external contact closure for push-to-talk microphones
• TEL input for telephone paging applications
• TEL input voice-activated (VOX) mute over AUX input
• Variable threshold for TEL input voice activated AUX mute
• Outputs for 4-ohm (direct), and 16-ohm, 25V and 70V speaker systems (transformer coupled)
• Output jack to connect a recording device or booster amplifier
• Output jack to connect a general-purpose 600-ohm matching transformer (model WMT1A)
• Thermal protection and electronic shutdown
• Rack mountable with accessory mounting kit (model RPK50)
• Listed to UL Standard 60065 for U.S. and Canada

• Transformer isolated 4Ω, 8Ω, 16Ω, 25V and 70V output taps
• Rear panel auxiliary receptacle
• One dedicated MIC 1 input — Lo-Z balanced
• One switchable MIC 2/Aux 1 input
• Contact muting of Aux input
• Transformer-isolated 600Ω telephone paging input
• Separate rear panel-mounted TEL volume control
• Voice activated muting of Aux input by Tel input
• Variable trigger threshold for voice activation
• Optional wall mount kit
• Optional impedance matching transformer 10k/600Ω
• UL and CSA listed 

• 4 inputs: 1 MIC (Lo-Z), 1 AUX (Hi-Z), 1 TEL, plus 1 selectable MIC or AUX
• Each input controlled by an independent volume control
• Treble and bass controls
• AUX muting by external contact closure for push-to-talk microphones
• TEL input for telephone paging applications
• TEL input voice-activated (VOX) mute over AUX input
• Variable threshold for TEL input voice activated AUX mute
• Outputs for 4-ohm (direct), 8-ohm, and 16-ohm, 25V and 70V speaker systems (transformer coupled)
• Output jack to connect a recording device or booster amplifier
• Output jack to connect a general-purpose 600-ohm matching transformer (model WMT1A)
• Thermal protection and electronic shutdown
• Rack mountable with accessory mounting kit (model RPK50)
• Listed to UL Standard 60065 for U.S. and Canada

• 4 inputs: 1 MIC (Lo-Z), 1 AUX (Hi-Z), 1 TEL, plus 1 selectable MIC or AUX
• Each input controlled by an independent volume control
• Treble and bass controls
• AUX muting by external contact closure for push-to-talk microphones
• TEL input for telephone paging applications
• TEL input voice-activated (VOX) mute over AUX input
• Variable threshold for TEL input voice activated AUX mute
• Outputs for 4-ohm (direct), 8-ohm, and 16-ohm, 25V and 70V speaker systems (transformer coupled)
• Output jack to connect a recording device or booster amplifier
• Output jack to connect a general-purpose 600-ohm matching transformer (model WMT1A)
• Thermal protection and electronic shutdown
• Rack mountable with accessory mounting kit (model RPK50)
• Listed to UL Standard 60065 for U.S. and Canada 

• Remote master volume control

• 2 Inputs: 1 balanced MIC/Line; 1 unbalanced AUX
• Individual phantom power for MIC inputs
• Volume controls for each input
• Input 1 can mute other inputs
• Audio-activated muting
• Defeatable muting
• Bass and treble controls
• Compatible with 70V, 25V, 4-ohm, and 8-ohm systems
• REC Output
• Peak indicator
• Signal indicator
• External 24V DC supply input
• Listed to UL Standard 60065 for US and Canada
• Optional rack mount adapter available for single and side-by-side configurations (sold separately)

• 4 Dedicated microphone inputs (XLR connectors MIC 1-4) with selectable phantom power
• 1 Selectable MIC 5/TEL input
• 1 Selectable MIC 6/AUX 1 input
• 1 Dedicated AUX 2 input
• 8-ohm, 25V/70V speaker output
• Standard 19" rack mountable – 2RU package
• 5-band full parametric equalizer with independent Gain, Frequency, and Q controls
• True loudness contour function on AUX 1 and AUX 2
• Audio Enhancement feature for improved voice intelligibility with adjustable level
• Lo-cut filter for all MIC channels
• Selectable AUX input muting during TEL paging: -60, -21, -10, and 0dB
• VOX sensitivity adjustment for TEL paging
• Input muting with individual selection available on all inputs
• Adjustable automatic level control on TEL input
• AUX fade back after TEL page
• Remote master volume control capability (using optional GSRVC)
• Preamp out/Power amp in connections, serves as an Insert for external audio processing
• Tape output connection, pre-master
• Level indicator meter, and peak limiting when amplifier is driven toward clipping
• 100VAC-240VAC, 50/60 Hz universal power supply
• Detachable IEC power cord
• Detachable, tamper-resistant front cover included
• Listed to UL Standard EN62368-1:2014 for U.S. & Canada

• 4 Dedicated microphone inputs (XLR connectors MIC 1-4) with selectable phantom power
• 1 Selectable MIC 5/TEL input
• 1 Selectable MIC 6/AUX 1 input
• 1 Dedicated AUX 2 input
• 8-ohm, 25V/70V speaker output
• Standard 19" rack mountable – 2RU package
• 5-band full parametric equalizer with independent Gain, Frequency, and Q controls
• True loudness contour function on AUX 1 and AUX 2
• Audio Enhancement feature for improved voice intelligibility with adjustable level
• Lo-cut filter for all MIC channels
• Selectable AUX input muting during TEL paging: -60, -21, -10, and 0dB
• VOX sensitivity adjustment for TEL paging
• Input muting with individual selection available on all inputs
• Adjustable automatic level control on TEL input
• AUX fade back after TEL page
• Remote master volume control capability (using optional GSRVC)
• Preamp out/Power amp in connections, serves as an Insert for external audio processing
• Tape output connection, pre-master
• Level indicator meter, and peak limiting when amplifier is driven toward clipping
• 100VAC-240VAC, 50/60 Hz universal power supply
• Detachable IEC power cord
• Detachable, tamper-resistant front cover included
• Listed to UL Standard EN62368-1:2014 for U.S. & Canada

• 4 Dedicated microphone inputs (XLR connectors MIC 1-4) with selectable phantom power
• 1 Selectable MIC 5/TEL input
• 1 Selectable MIC 6/AUX 1 input
• 1 Dedicated AUX 2 input
• 8-ohm, 25V/70V speaker output
• Standard 19" rack mountable – 2RU package
• 5-band full parametric equalizer with independent Gain, Frequency, and Q controls
• True loudness contour function on AUX 1 and AUX 2
• Audio Enhancement feature for improved voice intelligibility with adjustable level
• Lo-cut filter for all MIC channels
• Selectable AUX input muting during TEL paging: -60, -21, -10, and 0dB
• VOX sensitivity adjustment for TEL paging
• Input muting with individual selection available on all inputs
• Adjustable automatic level control on TEL input
• AUX fade back after TEL page
• Remote master volume control capability (using optional GSRVC)
• Preamp out/Power amp in connections, serves as an Insert for external audio processing
• Tape output connection, pre-master
• Level indicator meter, and peak limiting when amplifier is driven toward clipping
• 100VAC-240VAC, 50/60 Hz universal power supply
• Detachable IEC power cord
• Detachable, tamper-resistant front cover included
• Listed to UL Standard EN62368-1:2014 for U.S. & Canada

• 4 Dedicated microphone inputs (XLR connectors MIC 1-4) with selectable phantom power
• 1 Selectable MIC 5/TEL input
• 1 Selectable MIC 6/AUX 1 input
• 1 Dedicated AUX 2 input
• 8-ohm, 25V/70V speaker output
• Standard 19" rack mountable – 2RU package
• 5-band full parametric equalizer with independent Gain, Frequency, and Q controls
• True loudness contour function on AUX 1 and AUX 2
• Audio Enhancement feature for improved voice intelligibility with adjustable level
• Lo-cut filter for all MIC channels
• Selectable AUX input muting during TEL paging: -60, -21, -10, and 0dB
• VOX sensitivity adjustment for TEL paging
• Input muting with individual selection available on all inputs
• Adjustable automatic level control on TEL input
• AUX fade back after TEL page
• Remote master volume control capability (using optional GSRVC)
• Preamp out/Power amp in connections, serves as an Insert for external audio processing
• Tape output connection, pre-master
• Level indicator meter, and peak limiting when amplifier is driven toward clipping
• 100VAC-240VAC, 50/60 Hz universal power supply
• Detachable IEC power cord
• Detachable, tamper-resistant front cover included
• Listed to UL Standard EN62368-1:2014 for U.S. & Canada

• 4 Inputs: 3 balanced MIC/Line; 1 unbalanced AUX
• Individual phantom power for MIC inputs
• Volume controls for each input
• Input 1 can mute other inputs
• Audio-activated muting
• Defeatable muting
• Bass and treble controls
• Compatible with 70V, 25V, 4-ohm, and 8-ohm systems
• REC Output
• Peak indicator
• Signal indicator
• External 24V DC supply input
• Listed to UL Standard 60065 for US and Canada
• Optional rack mount adapter available for single and side-by-side configurations (sold separately)