Quattro Field Effect Amplifier by Roberto Tognon
The crowning achievement of Roberto Tognon — born from over one year of research and development to create a car amplifier unlike anything built before. Featuring the highest quality components sourced globally, the Quattro delivers exceptional audio performance in a precision CNC-milled chassis.
"Quattro" means absolute tonal correctness, transparency, detail, control, articulation, and soundstage. In four words: An Amplifier Built For Music.
In stock and shipping to USA, Canada, and Mexico.
Product Overview
Lateral MOSFET audio power stage
Full stabilized dual power supply
High current power MOSFET for single pair drive
MUNDORF capacitors on power and audio stages
Full discrete dual FET metal chassis drive stage
105μm gold plated PCB
Polymeric capacitors on all audio stages
Silver mica capacitors on audio stages
Composite CNC milled chassis
High quality gold plated connectors
MUSES72323 digital potentiometers with LCD display
Input sensitivity adjustment in 0.25dB steps per channel
Master level control for all channels simultaneously
Technical Specifications
Power Output
4 channels @ 4Ω — 4 x 150W RMS
4 channels @ 2Ω — 4 x 280W RMS
Electrical
Frequency Response: 4Hz – 150kHz (–3dB)
THD+N (20Hz–20kHz @ 1W): <0.01%
THD+N (1kHz @ 1W): <0.003%
Signal to Noise Ratio: >115dB
Max Input Signal: 10.6 Vrms (30Vpp)
Input Impedance: >20kΩ // 220pF
Working Voltage: 11–15.5V DC
Current Draw (typical @ 4Ω): 25A
Current Draw (max @ 4Ω): 60A
Idle Current (typical): 3.7A
Display Monitoring
Voltage IN • Chassis Temperature • Master Level
Channel Attenuation (0.25dB steps) • Firmware Version • Serial Number
Physical
Dimensions: 450mm x 270mm x 90mm
Weight: 23.15 lbs
Operating Temperature: 0–50°C
Over-Temperature Protection: 85°C (±5%)
