The TOA A‑2120 is a versatile 120 W mixer/amplifier tailored for public address and background music systems in medium-sized venues like classrooms, offices, retail spaces, and houses of worship. It offers flexible input options, priority muting, phantom power, and multiple speaker outputs in a compact chassis.

Details

The front panel features individual volume controls, recessed bass and treble tone adjustments, master volume knob, and LED indicators for power, signal, and peak levels. It accepts two balanced mic inputs (one with +21 V phantom power), a balanced telephone/paging input, and two unbalanced AUX inputs. The unit supports automatic muting of background sources for paging priority and provides recording and MOH/Zone 2 outputs.

Features

• 120 W output with selectable speaker lines: 70 V, 25 V, or 4 Ω.
• Phantom power (+21 V DC) available on MIC 1 for condenser microphones.
• Auto-mute and priority mixing—paging overrides background audio by 30 dB.
• Tone control ±10 dB at 100 Hz (bass) and 10 kHz (treble).
• Front panel LEDs indicate power, signal presence, and peak overload.
• Durable build with black ABS front and steel chassis; compact rack-friendly format.

Specifications

• Power supply: 120 V AC, 60 Hz
• Rated output: 120 W
• Power consumption: 124 W (EN 60065), 260 W (at rated output)
• Frequency response: 50 Hz–20 kHz (±3 dB)
• Total harmonic distortion: ≤ 1 % at 1 kHz, 1/3 rated power
• Signal‑to‑noise ratio: ≥ 60 dB
• MIC inputs: 2× balanced screw terminals, –60 dB, 600 Ω (MIC 1 includes phantom power)
• TEL input: 1× balanced screw terminal, –10 dB, 10 kΩ
• AUX inputs: 2× unbalanced RCA, –20 dB, 10 kΩ
• Speaker outputs: Floating balanced screw terminal; 70 V (42 Ω), 25 V (5 Ω), 4 Ω (22 V)
• Recording/MOH output: 0 dB, 600 Ω unbalanced RCA; MOH/Zone 2 balanced output
• Tone controls: Bass ±10 dB @100 Hz; Treble ±10 dB @10 kHz
• Muting: Auto/manual muting with priority override; Background audio attenuated by 30 dB
• Dimensions (W×H×D): 420 × 100.9 × 360.3 mm
• Weight: 12.5 kg
• Operating temp: 0 °C–40 °C
• Construction: Black ABS front panel; steel chassis