High-Power TEXONIC EX660D 660W Mixer Amplifier for Large Commercial Audio

The TEXONIC EX660D is a robust 660W Class D mixer amplifier engineered for large-scale commercial installations that require strong, stable audio output. Its 1U rack-mount design integrates seamlessly into audio racks used in stadium areas, banquet halls, gymnasiums, industrial sites, hotels and multi-floor facilities.

With Bluetooth and USB playback, three microphone inputs, two AUX inputs and a line-level output, the EX660D supports versatile audio sources for paging, background music and announcements. Chime and alarm tones are built in, and front-panel tone controls make system adjustments fast and simple. LED indicators provide real-time monitoring for signal, clipping and protection.

The EX660D works with 70V/100V commercial speaker systems as well as 8–16Ω low-impedance speakers. Built-in protection against short circuits, thermal overload and excessive current ensures reliability during continuous use in demanding environments.

Key Features

• 660W Class D output for large spaces
• 1U, 19″ rack-mount steel chassis
• Bluetooth and USB playback with auto-start
• 3 microphone inputs (1 balanced, 2 unbalanced)
• 2 AUX inputs and 1 line output
• Built-in chime and alarm tones
• Priority override system: Alarm → Mic 1 → Mic 2/Mic 3 → AUX
• Bass, treble and master volume controls
• LED indicators for power, signal, clip and protection
• Short-circuit, overload and temperature protection

Technical Specifications (EX660D)

Power Output

• Rated Output: 660W
• 8–16Ω Output: 660W
• 100V Output Load: 15Ω

Audio Inputs

• Mic 1 / Mic 2: 600Ω, 10 mV (unbalanced)
• Mic 3: 600Ω, 10 mV (balanced)
• AUX 1 / AUX 2: 10 kΩ, 300 mV (unbalanced)
• Line Output: 0.775V (0 dB)

Audio Performance

• Frequency Response: 60 Hz – 20 kHz (±3 dB)
• THD: <0.5% at 1 kHz (1/3 rated power)
• S/N Ratio: >80 dB (Line), >65 dB (Mic)
• Regulation: <3 dB from no load to full load
• Bass: 100 Hz (±10 dB)
• Treble: 10 kHz (±10 dB)

Power & Protection

• Power Supply: AC 100–240V, 50–60 Hz
• Power Consumption: 990W
• Short-circuit, overload and high-temperature protection

Indicators

• Power (PW)
• Signal: –20 dB, –10 dB, –3 dB
• Clip
• Protection

Dimensions & Weight

• Product Size: 18.9″ × 11.02″ × 1.77″ (480 × 280 × 45 mm)
• Package Size: 20.28″ × 14.96″ × 3.94″ (515 × 380 × 100 mm)
• Net Weight: 8.4 lb (3.8 kg)
• Gross Weight: 10.4 lb (4.7 kg)