• Product type: Compact mono Class D subwoofer amplifier
  
• Series: Hydrogen Series
  
• Model: GZHA MINI ONE-K
  
• Channels: 1
  
• Output power @ 4Ω: 340W RMS
  
• Output power @ 2Ω: 600W RMS
  
• Output power @ 1Ω: 1000W RMS
  
• Maximum output power: 1200W, CEA-2006A / 10% THD+N
  
• Link-mode output: 2000W RMS @ 2Ω using two amplifiers
  
• Frequency response: 10Hz–200Hz
  
• Crossover functions: HPF / LPF / BPF
  
• Bass boost: Adjustable
  
• Phase control: 0° / 180°
  
• High-level input: Yes
  
• Auto turn-on: Yes
  
• Link mode: Yes
  
• RCA output: Full-range line output
  
• Bass remote: GZTA wired bass remote included
  
• Input sensitivity: 300mV–6V
  
• Internal fusing: 3 × 35A
  
• Dimensions: 135 × 322 × 52mm

• Delivers 1000W RMS at 1 ohm from a compact 135mm-wide chassis
  
• Link mode allows two amplifiers to produce 2000W RMS at 2 ohms
  
• High-level input and auto turn-on support cleaner factory-system integration
  
• Adjustable filtering, bass boost and phase control provide useful subwoofer setup flexibility
  
• Included wired bass remote puts everyday subwoofer level adjustment within reach

• High-output subwoofer systems wired to a 1-ohm final load
  
• Compact builds that need substantial mono amplifier power
  
• OEM-retain audio upgrades using speaker-level signal
  
• Systems that may later expand to two linked MINI ONE-K amplifiers
• Daily high-output and SPL-oriented bass systems with suitable electrical support

The main reason is the 1000W RMS output from such a compact chassis. It gives an installer genuine subwoofer power without allowing the amplifier to dictate the entire packaging of the build.