• Amplifier class: Class AB
• Channels: 4
  
• Power @ 4 Ω stereo (14.4 V): 70 W per channel
  
• Power @ 2 Ω stereo (14.4 V): 110 W per channel
  
• Power @ 4 Ω bridged (14.4 V): 220 W per channel
  
• Minimum speaker load: 2 Ω
  
• Input sensitivity: 5 V to 350 mV
  
• Input impedance @ 1 kHz: 20 kΩ
  
• Frequency response (-3 dB): 9 Hz – 40 kHz
  
• THD: 0.09%
  
• Signal-to-noise ratio (rated power): 102 dB
  
• Signal-to-noise ratio (CEA-2006, 1 W): 84 dB
  
• Channel separation (rated power): 58 dB
  
• Damping factor (20 Hz – 20 kHz): >130
  
• Weight: 2.1 kg
  
• Dimensions: 270 mm × 150 mm × 60 mm
  
• Finish: Brushed Silver

• Class AB 4-channel design focused on clean, direct amplification
• Stable to 2 Ω stereo for flexible speaker pairing
  
• Bridgeable channels for higher output where needed
  
• Wide stated bandwidth (9 Hz – 40 kHz, -3 dB) for full-range duties
  
• No onboard crossover processing (intended to be run full-range or with external processing)

• Front + rear speaker systems needing a compact 4-channel amplifier
• 2-way active front stages when DSP or head unit provides crossovers
  
• Bridged applications where fewer channels with more power are preferred
  
• Installations where space is limited but Class AB topology is required

The Revolution 3A4 makes sense when you want a compact Class AB 4-channel amp that’s easy to integrate and doesn’t add complexity. The power ratings are straightforward, it’s stable down to 2 Ω stereo with bridging available, and it’s designed to run clean without relying on built-in crossovers or processing. For modern installs where space is tight and you still want predictable Class AB behaviour across common speaker loads, it’s a practical choice that’s easy to plan around and tune properly.