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Dayton Audio MA1240a Multi-Zone 12 Channel Amplifier 40WPC (300-815) | New

Dayton Audio MA1240a Multi-Zone 12 Channel Amplifier 40WPC (300-815) | New

SKU: 300-815-N
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Overview

Overview of Dayton Audio MA1240a Multi-Zone 12 Channel Amplifier 40WPC (300-815) | New

The Dayton Audio MA1240a Multi-Zone 12 Channel Amplifier 40WPC (300-815) is designed for multi-room setups, this Class-AB amplifier produces clear, audiophile-caliber sound that is reliable and distortion-free by driving up to six stereo zones with 40 watts RMS per channel and 80 watts bridged. Distribute high-fidelity music from stereo bus feeds, individual inputs or central sources with ease owing to individual channel gain controls and flexible connectivity. The MA1240a is a dream for installers because of its rack-mountable architecture, strong protection circuitry and versatile power sources. Simple status monitoring, triggered or autonomous power modes and scalable performance make this system perfect for custom AV projects, homes and companies.


Key Features of Dayton Audio MA1240a Multi-Zone 12 Channel Amplifier 40WPC


12 Channels/6 Stereo Zones with 40W RMS per channel at 8 ohms; bridgeable for 80W per channel (minimum 8 ohms bridged).

Class-AB Audiophile Design with stable output circuit ensures outstanding sonic purity and reliability.

Individual Channel Inputs & Bus Inputs that each channel has dedicated RCA line input; two stereo bus inputs distribute audio across zones.

Independent Channel Gain Controls that match output perfectly to each speaker and area for tailored soundscape.

Bridgeable Output Channels that flip a switch for more power where needed; flexible zone configurations.

Automatic, Manual & 12V Trigger Power Modes that integrate with automation systems or manual control; energy efficient.

Protection & Safety with multi-stage protection circuitry and bi-color zone LEDs for status and troubleshooting.

Rack-Mountable Construction with 2RU form factor with removable rack ears; fits standard audio racks.

Wide Frequency Response with 5Hz–72kHz bandwidth for true high-fidelity reproduction.

Global Power Compatibility with switchable 120/230V—suitable for worldwide installation.

Heavy-Duty Build with steel chassis, aluminum front panel ensures long-term durability.


Benefits of Dayton Audio MA1240a Multi-Zone 12 Channel Amplifier 40WPC


🗹 Whole-Home or Business Audio with immersive multi-zone sound distribution perfect for custom installations.

🗹 Scalable, Flexible Design that easily add or reconfigure zones, bridge output for higher-powered rooms.

🗹 Superior Sound Quality with Class-AB circuitry and wide frequency range deliver audiophile-grade performance.

🗹 Installer Friendly with simple setup, status LEDs and rack-ready design speed deployments and maintenance.

🗹 Reliable Operation with advanced safety, robust build and auto power options for worry-free usage.

Specifications

Specifications for Dayton Audio MA1240a Multi-Zone 12 Channel Amplifier 40WPC (300-815) | New

ManufacturerDayton Audio
Manufacturer Part Number300-815
Product NameDayton Audio MA1240a Multi-Zone 12 Channel Amplifier 40WPC
Product TypeChannel Amplifier
Channels12 (6 stereo zones)
Power Output (RMS)40 watts/channel @ 8 ohms
Bridged Power Output (RMS)80 watts/channel @ 8 ohms (min. 8 ohm bridged)
Power Output @ 4 ohms (RMS)60 watts/channel
Input Sensitivity380 mV for full output w/ level controls at max
Input Impedance18k ohm
Frequency Response5 Hz to 72 kHz
Total Harmonic Distortion (THD)0.005% @ 30W (8 ohm); 0.010% @ 80W bridged (8 ohm)
Channel Crosstalk80 dB
Signal-to-Noise Ratio (SNR)105 dB A-weighted
Efficiency63%
Inputs12 line-level RCA; 2 stereo bus RCA
Outputs2 stereo bus RCA; 12 speaker outputs
Gain ControlsIndependent per channel
Power ModesManual, Auto, or 12V Trigger
ProtectionMulti-stage (LED zone status indicators)
VoltageSwitchable 115/230 VAC, 60/50 Hz
Rack MountableYes (2RU, removeable ears); also tabletop
Dimensions16.7″ W x 4″ H x 14.25″ D (including feet)
Weight33 lbs
Chassis ConstructionSteel chassis, brushed aluminum faceplate
ManufacturerDayton Audio
Manufacturer Part Number300-815
Product NameDayton Audio MA1240a Multi-Zone 12 Channel Amplifier 40WPC
Product TypeChannel Amplifier
Channels12 (6 stereo zones)
Power Output (RMS)40 watts/channel @ 8 ohms
Bridged Power Output (RMS)80 watts/channel @ 8 ohms (min. 8 ohm bridged)
Power Output @ 4 ohms (RMS)60 watts/channel
Input Sensitivity380 mV for full output w/ level controls at max
Input Impedance18k ohm
Frequency Response5 Hz to 72 kHz
Total Harmonic Distortion (THD)0.005% @ 30W (8 ohm); 0.010% @ 80W bridged (8 ohm)
Channel Crosstalk80 dB
Signal-to-Noise Ratio (SNR)105 dB A-weighted
Efficiency63%
Inputs12 line-level RCA; 2 stereo bus RCA
Outputs2 stereo bus RCA; 12 speaker outputs
Gain ControlsIndependent per channel
Power ModesManual, Auto, or 12V Trigger
ProtectionMulti-stage (LED zone status indicators)
VoltageSwitchable 115/230 VAC, 60/50 Hz
Rack MountableYes (2RU, removeable ears); also tabletop
Dimensions16.7″ W x 4″ H x 14.25″ D (including feet)
Weight33 lbs
Chassis ConstructionSteel chassis, brushed aluminum faceplate

User Guides

Frequently Asked Questions

Dayton Audio MA1240a Multi-Zone 12 Channel Amplifier 40WPC (300-815)
Frequently Asked Questions (FAQ's)



How many zones does the MA1240a support?
  • It supports up to 6 stereo zones (12 channels total).
  • What is the power output per channel?
  • 40 watts per channel at 8 ohms or 80 watts when bridged.
  • Can I use this amplifier for home audio?
  • Yes, it’s perfect for whole-house distributed audio systems.
  • Is it suitable for commercial spaces?
  • Absolutely—ideal for restaurants, offices or retail stores.
  • What is a bridged channel?
  • Bridging combines two channels into one with higher power output (80W).
  • Can each zone play a different source?
  • Yes, each zone can use either the bus input or its own dedicated input.
  • Does it have a global source input?
  • Yes, bus inputs allow one source to be distributed across all zones.
  • Are volume levels adjustable per zone?
  • Yes, each zone has an independent level control.
  • What type of amplification does it use?
  • Class AB, delivering warm and accurate sound reproduction.
  • Does it support a subwoofer?
  • Yes, you can bridge channels for added power to drive a passive subwoofer.
  • Can I integrate it with an AV receiver?
  • Yes, it can be used alongside an AV receiver for expanded multi-zone systems.
  • Does it have a trigger input?
  • Yes, it supports a 12V trigger for automation integration.
  • Is it rack-mountable?
  • Yes, it’s designed to fit standard 2U racks for professional installations.
  • What happens if a speaker wire shorts?
  • Built-in protection circuitry prevents damage by shutting down affected channels.
  • Does it overheat with long use?
  • No, it includes advanced thermal protection for continuous operation.
  • Can I use 4-ohm speakers?
  • Yes, but output levels and heat should be managed accordingly.
  • Is it expandable for larger systems?
  • Yes, multiple units can be linked together for more zones.
  • What is the difference between bus input and direct input?
  • Bus input distributes a single source across all zones, while direct input assigns unique sources to individual zones.
  • Can it be used in a home theater?
  • It’s not a surround sound amp, but it can provide multi-room stereo audio alongside a home theater setup.
  • Does it include a cooling fan?
  • It uses efficient passive and thermal management for quiet operation.
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