The Grommes GT125C is a professional 7-input commercial mixer amplifier designed for paging, distributed audio, and public address applications. Delivering 125 watts RMS power, the GT125C supports multiple microphone and auxiliary sources while providing flexible output options including 4-8 Ohm, 25V, and 70.7V speaker systems.
Featuring voice-activated muting, phantom power, toroidal transformers, and independent bass and treble controls, the GT125C is built for reliable performance in schools, churches, offices, retail stores, and commercial audio installations.
Powerful 125W Commercial Mixer Amplifier
The GT125C delivers dependable commercial audio performance:
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125W RMS output power
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Supports 4-8 Ohm, 25V, and 70.7V speaker systems
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Ideal for distributed audio and paging systems
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Designed for professional commercial audio installations
Flexible 7-Input Audio Mixing
Multiple inputs support a wide range of audio sources:
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7 input channels
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Supports up to 5 microphone inputs
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XLR and screw terminal microphone connections
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6 auxiliary inputs
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600-ohm telephone paging input
Voice-Activated Muting & Paging Features
Built for paging and announcement applications:
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Voice or signal-activated muting
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Telephone paging integration
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Priority paging support
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Ideal for schools, offices, and public address systems
Superior Audio Quality & Tone Control
Designed for clean, customizable sound performance:
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Separate bass and treble controls
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Toroidal power transformers for reduced noise
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Improved efficiency and audio performance
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Wide frequency response for music and speech clarity
Phantom Power & Professional Connectivity
Supports professional microphone systems:
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+15V phantom power for condenser microphones
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Balanced microphone inputs
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Auxiliary line outputs
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Preamp output support
Ideal Applications
Perfect for commercial and professional audio systems:
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Schools and classrooms
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Churches and worship centers
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Retail stores
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Offices and paging systems
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Restaurants and hospitality venues
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Public address systems
Technical Specifications
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Power Output: 125W RMS
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Mixer Channels: 7
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Outputs:
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Inputs:
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5 microphone inputs
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6 auxiliary inputs
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600-ohm telephone/page input
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Phantom Power: +15V
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Rack Size: 2RU
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Dimensions:
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Weight: Approx. 19 lbs
Key Features
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125W commercial mixer amplifier
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7-input audio mixer
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70.7V distributed audio support
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Voice-activated muting
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Telephone paging input
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Phantom power microphone support
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Rackmount design included
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Toroidal transformers for low noise
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Bass and treble controls
Best Mixer Amplifier for Paging & Distributed Audio
The Grommes GT125C is an excellent solution for commercial paging and background music systems requiring flexible microphone and auxiliary input support. The combination of 70.7V compatibility, voice-activated muting, and phantom-powered microphone inputs makes it ideal for schools, offices, churches, and retail environments.
Toroidal transformers also help reduce system noise, delivering cleaner sound quality compared to many standard commercial amplifiers.