The Dayton MA1240 is a freestanding, twelve channel amplifier designed for custom multi-room sound distribution. Its intelligently engineered and versatile design integrates easily into high-end whole house audio systems. A Class AB output circuit delivers superior audiophile sound quality and stable performance. The MA1240 can be stacked with other audio components and includes removable ears for mounting in standard audio racks (2RU). Two common or BUS inputs feed audio signals from standard line-level audio sources to any or all channels. Each of the twelve channels has its own dedicated input and independent level adjustment to provide further flexibility. By simply flipping a single switch, two channels can be bridged to increase the total power output for that zone. This is helpful when extra power is needed in certain areas. Manual, automatic on/off, or triggered 12V input turn-on modes facilitate easy integration into automated systems. For quick and easy troubleshooting of the system, each pair of channels or zones has a bi-color LED to indicate its operational status

• 12 channels (6 stereo zones) in one convenient enclosure
• Stable Class AB design delivers superior audiophile sound quality and performance
• Independent and bus inputs provides unparalleled flexibility
• Bridgeable channel outputs provide additional power when needed
• Independent channel gain controls allow the output of each speaker to be perfectly matched
• Switchable 115/230V input voltage
• Manual, auto, or triggered on/off for integration into any automated system
• Multi-stage protection circuitry for reliability and easy troubleshooting of audio system
• Installer-friendly setup and connections
• Can be converted easily between rack-mount and tabletop configurations
• Heavy-duty steel chassis with brushed aluminum faceplate
• One-year manufacturer's warranty

Specifications: • Rated power output per channel: 40 watts into 8 ohms, 60 watts into 4 ohms (0.09% THD) • Bridged output: 80 watts into 8 ohms (0.30% THD) • Signal to noise ratio: 95 dB A-weighted • Input impedance: 18K ohms • Input sensitivity: 380 mV • Frequency response: 5 Hz - 20 kHz • Channel crosstalk: 80 dB • Dimensions: 16.7" W x 4" H x 14.25" D (tabletop configuration) • Power requirements: 115/230 VAC, 50/60 Hz • Stand-by power rating: 115V 80W; 230V 75W • Weight: 30 lbs.