Audio Solution QUATTROCENTO 4-Channel Class A/B Car Amplifier

Audio Solution QUATTROCENTO 4-Channel Class A/B Car Amplifier

Handcrafted in Italy by Roberto Tognon, the Audio Solution QUATTROCENTO is a 4-channel Class A/B car audio amplifier for sound-quality-focused systems. It delivers 100W RMS per channel at 4 ohms in a compact CNC-milled aluminum chassis, giving you a four-channel platform for a front stage or full-range speaker setup.

Build your system around the details that matter: less than 0.008% THD at the specified test conditions, a damping factor above 150 at 4 ohms, and a frequency response extending beyond 100kHz. Whether you are refining your daily listening or planning an SQ build, the QUATTROCENTO brings Italian craftsmanship to your amplifier rack.

Key Features

• Four-channel Class A/B amplification
• 4 × 100W RMS at 4 ohms
• Compact CNC-milled aluminum chassis measuring 277 × 190 × 55 mm
• 11–15V DC operation for automotive systems
• Overload, short-circuit, DC presence, and over-temperature protection
• Handcrafted in Italy by Roberto Tognon

Power Output and Load Requirements

• 4-channel output at 4Ω: 100W RMS per channel
• 4-channel output at 2Ω: 160W RMS per channel, musical program only
• Mono output at 4Ω: 300W RMS, musical program
• Minimum impedance: 2Ω in 4-channel operation; 4Ω bridged

The 2-ohm and mono power figures above retain the listed musical-program qualifications. Match your speaker loads and installation to these requirements.

Electrical Specifications

• Amplification class: A/B
• Supply voltage: 11–15V DC
• Idle current: Up to 0.5A
• Maximum current draw at 4Ω: 26A
• Maximum current draw at 2Ω: 45A
• Efficiency at 4Ω: >60%
• Input sensitivity: 0.5mV–8V
• Input impedance: >20kΩ
• Frequency response: <10Hz–>100kHz (−3dB)
• Signal-to-noise ratio: >100dB
• THD at 1kHz, 100W, 4Ω: <0.008%
• Damping factor at 4Ω: >150

Dimensions, Weight, and Protection

• Dimensions: 277 × 190 × 55 mm
• Product weight: 4.08 lbs
• Operating temperature: 0–50°C
• Internal fuses: 2 × 25A
• Over-temperature protection: 85°C (±5%)
• Protections: Overload, short circuit, DC presence, and over-temperature

Plan Your Car Audio System

Available for customers in the USA, Canada, and Mexico. Contact us for help checking speaker-load requirements and planning your QUATTROCENTO installation.