Crest Audio CA9 Power Amplifier

The Crest Audio CA9 Power Amplifier is a professional-grade amplifier engineered for demanding audio applications, delivering clean, powerful, and reliable performance. Part of Crest Audio’s revered CA series, the CA9 is respected for its superior build quality, advanced technology, and exceptional sound reproduction.

Designed for both touring and fixed installations, the CA9 excels in environments such as theaters, auditoriums, houses of worship, nightclubs, and live concert setups. Its combination of Class AB and Class H circuitry ensures efficient operation with minimal heat, while delivering crisp, distortion-free audio at high output levels.

Key Features

• High Output Power

  • Stereo: 900W per channel at 4Ω

  • Stereo: 600W per channel at 8Ω

  • Bridged: 2000W at 4Ω
    Ideal for mid- to large-scale sound systems.

• Class AB/H Topology
  Efficient power design that balances high efficiency with exceptional sound quality.

• Rugged Construction
  Heavy-duty chassis built to withstand touring and permanent installations.

• Advanced Protection Circuitry
  Over-temperature, DC voltage, short circuit, and thermal protection ensure durability and safety.

• Toroidal Power Transformer
  Provides consistent power and high headroom for demanding audio passages.

• Balanced XLR Inputs
  Low-noise signal transfer for integration with professional audio systems.

• Multiple Operating Modes
  Stereo and bridged-mono modes allow flexibility in speaker setups.

• Efficient Cooling System
  Variable-speed fans adapt to operating temperature for stable performance during long sessions.

Technical Specifications

• Power Output:

  • Stereo: 600W per channel @ 8Ω

  • Stereo: 900W per channel @ 4Ω

  • Bridged Mono: 2000W @ 4Ω

• Frequency Response: 20 Hz – 20 kHz (+0/-0.2 dB)

• Total Harmonic Distortion (THD): <0.05% at rated power

• Signal-to-Noise Ratio: >105 dB

• Input Sensitivity: Selectable (0.775V, 1.4V)

• Dimensions: 3.5″ × 19″ × 15.25″ (8.9 × 48.3 × 38.7 cm)

• Weight: 41 lbs (18.6 kg)

Applications

• Live Sound Reinforcement: Concerts, touring sound systems, large outdoor events.

• Permanent Installations: Auditoriums, theaters, houses of worship, clubs.

• Portable Sound Systems: Touring rigs and mobile sound reinforcement.

• Subwoofer and Full-Range Speaker Systems: Reliable high-output amplification.

Advantages and Benefits

• Powerful output for mid- to large-scale sound systems

• Superior efficiency with Class AB/H design

• Rugged build for touring and fixed applications

• Advanced protection systems for amplifier and speaker safety

• Versatile operation modes for multiple setups

• Exceptional sound clarity with low distortion