TOA A-2240 Mixer/Power Amplifier – 240W Installed Sound Solution

The TOA A-2240 is a versatile 240-watt mixer/power amplifier designed for reliable, long-term performance in commercial and institutional sound installations. Ideal for schools, offices, restaurants, factories, houses of worship, retail spaces, and meeting facilities, the A-2240 combines professional mixing capabilities with robust power amplification in a compact, all-in-one unit. Built with TOA's legendary quality and durability, it delivers clear, dependable audio with intuitive operation and flexible connectivity.

Featuring five versatile inputs—including two balanced microphone inputs with phantom power capability, two stereo-summing auxiliary inputs, and a dedicated telephone paging input—the A-2240 handles multiple audio sources simultaneously. The intelligent Auto-Mute function provides voice-activated priority for microphone and telephone inputs, ensuring important announcements are always heard. Multiple output configurations (70.7V, 25V, and 4Ω) accommodate various speaker installations, while an auxiliary line output enables recording or system expansion.

Backed by a 5-year warranty and UL/cUL safety certifications, the A-2240 offers exceptional value for installed sound applications requiring simple setup, reliable daily operation, and professional audio quality.

TOA A-2240 Key Features

• 240W power output – Ample power for medium to large spaces
• 5 flexible inputs – Two mic inputs, two stereo aux inputs, one telephone input
• Balanced microphone inputs – Professional XLR/¼" combo inputs with phantom power (Mic 1)
• Switchable 21V phantom power – Supports condenser microphones on Mic 1 input
• Auto-Mute priority – Voice-activated override for mic and telephone announcements
• Multiple output options – 70.7V, 25V, and 4Ω speaker connections for installation flexibility
• Auxiliary line output – Enables recording or connection to additional amplifiers
• Built-in tone controls – Bass and treble EQ for sound shaping
• Individual channel controls – Independent level adjustment for each input
• Master volume control – Central output level management
• TOA paging mic compatible – Works seamlessly with PM-222U, PM-660U, and PM-20EV
• UL and cUL listed – Meets North American safety standards
• 5-year warranty – Long-term reliability backed by TOA
• Compact design – Space-efficient for equipment rooms and closets (not rack-mountable)

TOA A-2240 Specifications

Power Output

• Rated Power: 240W
• Output Configurations:
  • 70.7V constant voltage
  • 25V constant voltage
  • 4Ω low impedance
• THD: <1% at rated output
• Frequency Response: 50 Hz – 15 kHz

Inputs

• Microphone Inputs (2):
  • Type: Balanced XLR/¼" combo jacks
  • Phantom Power: 21V DC (switchable on Mic 1)
  • Input Sensitivity: -60 dBV (1 mV)
  • Input Impedance: 10kΩ
• Auxiliary Inputs (2):
  • Type: Stereo RCA (summed to mono)
  • Input Sensitivity: -10 dBV (316 mV)
  • Input Impedance: 47kΩ
• Telephone Input (1):
  • Type: ¼" phone jack
  • Input Sensitivity: -10 dBV (316 mV)
  • Input Impedance: 10kΩ
  • Auto-Mute: Activates priority when signal detected

Outputs

• Speaker Outputs:
  • 70.7V, 25V, or 4Ω (selectable via rear panel terminals)
  • Phoenix/Euroblock speaker terminals
• Auxiliary Output:
  • Type: RCA line-level output
  • Level: -10 dBV (for recording or system expansion)

Controls & Features

• Individual input level controls (all 5 inputs)
• Master volume control
• Bass control: ±10 dB at 100 Hz
• Treble control: ±10 dB at 10 kHz
• Auto-Mute function (mic and telephone priority)
• Phantom power switch (Mic 1)
• Power ON/OFF switch
• LED power indicator

Protection Features

• Short circuit protection
• Thermal protection with auto shutdown
• Overload protection
• Soft-start circuitry

Physical

• Dimensions: 16.9" × 4.1" × 12.6" (430 × 105 × 320 mm)
• Weight: Approx. 17.6 lbs (8 kg)
• Mounting: Tabletop/shelf mount (not rack-mountable)
• Construction: Steel chassis with ventilated design
• Finish: Black

Power Requirements

• AC Input: 120V AC, 60 Hz
• Power Consumption: 320W maximum

Certifications & Warranty

• UL Listed
• cUL Listed (Canada)
• 5-year manufacturer warranty

Applications

• Educational facilities and classrooms
• Corporate offices and conference rooms
• Restaurants and cafés
• Retail stores and shopping centers
• Houses of worship
• Manufacturing facilities and warehouses
• Hotels and hospitality venues
• Government and municipal buildings
• Background music and paging systems

Compatible TOA Paging Microphones

• PM-222U – Desktop paging microphone
• PM-660U – Desktop paging microphone with chime
• PM-20EV – Handheld paging microphone

What's in the Box

• TOA A-2240 mixer/power amplifier
• AC power cord
• User manual
• Warranty card