Velodyne Impact X 15

Impact X 15: 15-inch active bass-reflex subwoofer

An active subwoofer from the Impact X series, with a 15" front-firing driver and a bass-reflex slot on the rear, shaped to reduce air turbulence. The cabinet is 22 mm MDF with a 30 mm front baffle, with a dimmable display.

Amplification and controls

The class D amplifier includes a circuit that limits distortion when it is driven hard. Nine DSP presets, recalled from the remote control, adapt the response to the programme and the room; the low-pass crossover is adjustable from 50 to 180 Hz and phase is 0/180°. Stereo/LFE RCA and high-level inputs, RCA output.

Connecting it to the system

It connects to the subwoofer (LFE) output of a home cinema receiver or, in a stereo system, to the line outputs of the preamplifier or to the speaker terminals through the high-level input. With automatic power-on it wakes up by itself when a signal arrives and goes back to standby when the music stops.

• 15" woofer, 550 W RMS amplifier (1000 W dynamic)
• Frequency response: 23–180 Hz at ±3 dB, 18–220 Hz overall
• Dimensions: 44 × 48 × 59 cm (W × H × D), weight 35 kg
• Finish: matt black