

Mixing Amplifier
NOX AUDIO Engineered the MX Series to address the full spectrum of system integrator requirements across commercial and industrial environments. The series combines high-fidelity sound reproduction with exceptional flexibility and stable performance, ensuring premium audio quality across diverse installations.
Designed for reliability, the MX Series incorporates multi-layer protection architecture, including safeguards against short circuit, overload, overheating, and DC faults—ensuring long-term operational security and system integrity.
Ideal for schools, hospitals, factories, restaurants, cafés, houses of worship, gymnasiums, retail spaces, and A/V installations, the MX Series is easily configurable for a wide range of applications, including background music distribution, public address, paging, and emergency evacuation systems.
Features
• High performance 125 Watt & 250 Watt 100 Volt mixing / amplifier
• Bass & treble controls.
• Integrated speech filters.
• Three level priority system.
• Operates with 24V DC or 115V / 230V AC.
• Four microphone inputs, four selectable line inputs plus one emergency line / telephone.
• 24V priority output, activated by contact closure.
• Short, overheat & DC protection.
Specifications
• Inputs Connectors:
MIC 1 : balanced 1/4” jack ( front ) & NEUTRIK XLR / DIN5 ( Back )
MIC 2 & 3 : balanced NEUTRIK COMBO XLR / 1/4” Jack.
MIC 4 : balanced NEUTRIK XLR ( 1.5 mV ). 14V phantom power via on-off switch at back panel
AUX : gold plated RCA cinch ( 500 mV )
CD : gold plated RCA cinch ( 500 mV )
Tuner : gold plated RCA cinch ( 300 mV )
LIine 4 : gold plated RCA cinch ( 200 mV )
Emergency Input : euro block ( 1V )
• Outputs Connectors:
Pre-Amp Out : gold plated RCA cinch ( 1V )
Record Out : gold plated RCA cinch mono ( 1V )
Speakers : euro-block 4 Ohm – 8 Ohm -50V - 70V - 100V
• Power Output:
MX125 : 125W @ 4 Ω – 8 Ω - 50V - 70V – 100V
MX250 : 250W @ 4 Ω – 8 Ω - 50V - 70V – 100V
Priority Output : 24V, activated by contact closure
• Priority System:
Level 1 : Emergency / Tel: euro-block ( 200 mV ), mutes all inputs
Level 2 : VOX Mute: on MIC 1 ( 0.6 mV ), mutes MIC 2,3 & 4 & line inputs. level set by trimmer
Level 3 : Contact Closure: mutes all line inputs
Chime : 2-tone chime activated by contact closure on euro-block or DIN5. adjustable volume
• Tone Control:
Bass : ±10 dB - 100 Hz
Treble : ±10 dB – 10 kHz
• Frequency Response:
25 Hz - 22 kHz
• Signal To Noise Ratio:
> 99 dB, 22 Hz - 22 kHz
• Line S/N Ratio:
Better than 86 dB, 22 Hz - 22 kHz
• MIC S/N Ratio:
Better than 74 dB, 22 Hz - 22 kHz
• Total Harmonic Distortion:
< 0.2%
• Dimensions ( H x W x D ):
89 x 483 x 307.5 mm ( 31⁄2 x 483 x 12 inch ) ( detachable 19” brackets included )
• Power Supply:
115V & 230V selectable plus 24V
• Weight:
MX125 : 9.6 Kg ( 21.16 lb )
MX250 : 10.2 Kg ( 22.49 lb )
