Velodyne Acoustics Vi-Q 15 Subwoofer

Velodyne Acoustics VI‑Q 15 – Premium 15‑Inch Sealed Subwoofer

The Velodyne VI‑Q 15 is the flagship subwoofer in the VI‑Q line, crafted for powerful, accurate low‑end performance. It delivers deep bass extension, robust output, and sophisticated control to suit both high-end stereo systems and home theaters that demand authority in the bass without compromising precision.

What Sets It Apart

• Carbon‑fiber cone with a 3‑inch, four‑layer, ~76 mm voice coil for expressive movement, reduced distortion, and improved responsiveness under load. 

• Class‑D amplification delivering 650 W RMS with peaks up to 1200 W, backed by a high‑efficiency power supply and MOSFET transistors to handle demanding bass passages cleanly. 

• Sealed (acoustic suspension) enclosure with a rigid build: 50 mm thick 21‑layer plywood / multiplex front baffle, 22 mm HDF / plywood side panels, all engineered to suppress panel resonance and deliver tight, controlled bass. 

Performance Specs

• Frequency response is approximately 23 Hz – 180 Hz (±3 dB), with extended usable output down to ~18 Hz (±10 dB). 

• Low‑pass crossover adjustable from 50 Hz to 180 Hz (12 dB/octave slope), plus a phase switch (0° / 180°) to align output with your main speakers. 

Connectivity & Controls

• Inputs:
  • Stereo/LFE RCA (gold‑plated)
  • Balanced XLR (nickel‑plated)
  • High‑level speaker‑level input 

• Outputs:
  • RCA stereo/LFE output
  • Balanced XLR output 

• Additional Controls:
  • Power mode switch: Off / Auto / On 
  • Phase switch (0° / 180°) 

Physical Attributes

• Dimensions (including feet & connectors): ~ 48 × 48 × 56 cm (W × H × D) 

• Weight: approx 25 kg (net), shipping weight ~28 kg