OSD Audio - OSD Nero MX1250 DSP Matrix 12-Channel Amplifier, 6-Zone Multi-Room Audio System for Whole Home Audio - Black
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About this product
The OSD Nero MX1250 is a professional-grade 12-channel, 6-zone DSP matrix amplifier designed to deliver powerful, flexible, and reliable audio distribution for modern residential and commercial installations. Housed in a space-saving true 1U rack-mount chassis, the MX1250 maximizes valuable rack space while providing 12 channels of efficient Class D amplification, built-in matrix switching, and advanced DSP processing for complete control over every listening zone. Its integrated matrix allows any connected source to be routed to any zone without the need for external switching hardware, making it ideal for whole-home audio systems, multi-room entertainment, restaurants, offices, retail spaces, and hospitality environments. Independent per-zone volume, source selection, and high, mid, and low EQ controls allow installers to optimize sound based on room acoustics and speaker placement, ensuring balanced, high-quality audio throughout the installation. Flexible connectivity includes Bus 1 and Bus 2 shared inputs, dedicated RCA inputs for each zone, Phoenix speaker outputs, a bridgeable Zone 6 for higher-power applications, auto signal sensing, and 12V trigger support for seamless system integration. Combining compact design, installer-friendly connectivity, energy-efficient operation, and advanced audio control, the OSD Nero MX1250 is an ideal solution for scalable distributed audio systems that demand professional performance, exceptional flexibility, and long-term reliability.
Features
DSP MATRIX AUDIO CONTROL
Advanced DSP-driven matrix routing allows each zone to independently select audio sources while maintaining precise control over volume, distribution, and sound tuning, delivering a truly flexible multi-room audio experience
6-ZONE / 12-CHANNEL POWER
Drive up to six rooms with dedicated stereo channels delivering 25W RMS (50W peak) per channel at 8 ohms, ensuring consistent, clean audio performance for in-ceiling, in-wall, and outdoor speaker systems
DUAL BUS + DIRECT INPUT FLEXIBILITY
Features Bus 1, Bus 2, and dedicated RCA inputs per zone, allowing you to play the same audio throughout your home or assign completely different sources to each room with ease
PER-ZONE EQ CUSTOMIZATION
Built-in 3-band EQ with adjustable bass, midrange, and treble (-12 dB to +12 dB) lets you fine-tune sound for each room’s acoustics, speaker placement, and listening preferences
NO APP OR INTERNET REQUIRED
Simple DSP-controlled front panel eliminates the need for apps, WiFi, remotes, or logins, making it ideal for homes, vacation rentals, restaurants, and multi-user environments where ease of use is critical
Specifications
- Continuous Watts x Channel @ Ohms25WNumber of Channels12Number of Audio Zones6Network Connector(s)No network connectorsWireless ConnectivityNone
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The OSD Nero MX1250 is a professional-grade 12-channel, 6-zone DSP matrix amplifier designed to deliver powerful, flexible, and reliable audio distribution for modern residential and commercial installations. Housed in a space-saving true 1U rack-mount chassis, the MX1250 maximizes valuable rack space while providing 12 channels of efficient Class D amplification, built-in matrix switching, and advanced DSP processing for complete control over every listening zone. Its integrated matrix allows any connected source to be routed to any zone without the need for external switching hardware, making it ideal for whole-home audio systems, multi-room entertainment, restaurants, offices, retail spaces, and hospitality environments. Independent per-zone volume, source selection, and high, mid, and low EQ controls allow installers to optimize sound based on room acoustics and speaker placement, ensuring balanced, high-quality audio throughout the installation. Flexible connectivity includes Bus 1 and Bus 2 shared inputs, dedicated RCA inputs for each zone, Phoenix speaker outputs, a bridgeable Zone 6 for higher-power applications, auto signal sensing, and 12V trigger support for seamless system integration. Combining compact design, installer-friendly connectivity, energy-efficient operation, and advanced audio control, the OSD Nero MX1250 is an ideal solution for scalable distributed audio systems that demand professional performance, exceptional flexibility, and long-term reliability.
The MX1280 GEN2 is a 6-zone, 12-channel Class D amplifier for residential and commercial distributed audio systems requiring reliable power across many rooms. Each channel supplies 80W into 4 ohms and 50W into 8 ohms, and every zone includes a bridge switch that combines both channels into a single 160W output at 8 ohms. The GEN2 revision adds front-panel on and off buttons for each stereo zone, so unused areas can be shut down individually to reduce power consumption without touching the rear panel or a control system. Independent zone control with global and per-zone triggering lets each area run its own source through its line input, or follow a shared feed through Bus In 1 and Bus In 2. Signal auto-sensing powers the amplifier up when audio is detected and down when it stops. Protection circuitry guards against thermal overload and short circuits. The slim 2U chassis is rack mountable with hardware included and pairs with the CONTROL12 for a complete distributed audio setup.
The HTA7200 can easily achieve the reference cinema sound levels of 105dB from all channels. The HTA7200 is rated at 210 Watts per channel, all channels driven (not just one channel, as stated by most competitors) into 4Ohms. Used with typical speakers this allows for a sound-pressure level of 112-115dB, 7-10dB more than required for reference sound levels. The additional dB’s means the amplifier is working well within its normal range, and this keeps the distortion low. (A good example of this is turning your TV up too much - it does not sound good. This is because the closer you get to full power the higher the distortion.) With this amplifier at 105dB, the distortion is below 0.01%.
The HTA5200 can easily achieve the reference cinema sound levels of 105dB from all channels. The HTA5200 is rated at 210 Watts per channel, all channels driven (not just one channel, as stated by most competitors) into 4Ohms. Used with typical speakers, this allows for a sound-pressure level of 112-115dB, 7-10dB more than required for reference sound levels. The additional dB’s means the amplifier is working well within its normal range, and this keeps the distortion low. (A good example of this is turning your TV up too much - it does not sound good. This is because the closer you get to full power the higher the distortion.) With this amplifier at 105dB, the distortion is below 0.01%.By choosing the best components, we can also achieve 110dB SNR at full power, this allows for a very wide dynamic range, allowing you to hear the softest and loudest sounds more clearly. This combination of performance specifications is hard to find from any amplifier, regardless of price. By choosing an OSD HTA amplifier, you have achieved the goal of great performance at an affordable price.
Specs
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