Amphion BaseTwo25

Amphion BaseTwo25 Powered low-frequency extension system with 2 x subwoofer towers and 2 x 900W amplifier


  • Perfectly integrated time and phase coherent, three-way system, extending all the way down to 20Hz.
  • Extremely robust 25 cm (10”) woofers with matching 25 cm passive radiators mounted in back to back force canceling mode on both sides of the cabinet.
  • Driven by 2 x 900W amplifiers housed in a 2U rack chassis and a stand-alone 1U filtering module with variable-volume control.


Operating principle: One-way, passive radiator

Drivers: 10” aluminum woofers with 10″ passive radiators

Weight: 70 kg (154 lbs)

Crossover point: 100 Hz

Frequency response: 20 – 100 Hz ±3dB

Handmade in Finland

Amphion BaseTwo25