VELODYNE DD-12 SUB, CHERRY FINISH, SUPER CLEAN!

Velodyne DD-12 Powered Subwoofer. Cherry finish, approx. 5 yrs old, rated 8/10 (can't find any marks on it). This sub is owned by one of our employees who purchased it new and has used it gently in his home two channel system. Included factory packing, manual, and full accessory kit.

New was $3,000, sell for $1200.

Overview

With the Velodyne Digital Drive 12" Powered Subwoofer, the response of the subwoofer is measured using a supplied microphone, and various parameters can be adjusted to match the subwoofer to the main speakers and equalize the response of the subwoofer to produce the best sound at the listening position. All of this is done in the digital domain: the analog signal is converted to digital using a 20-bit A/D converter, then the signal is processed using a powerful (31.6 million IPS) Texas Instruments TMS320LF2407 DSP chip, and finally the signal is converted back to analog by a 20-bit DAC and sent to the built-in amplifier. The amplifier itself is an Energy Recovery class-D digital model producing a whopping 1250W.

The DD-12 is extremely compact, with a sleek, elegant appearance, and the combination of the new amplifier and driver, plus the enhanced servo control, enables the DD-12 to produce bass that goes deep with minimal distortion—bass that is tuneful as well as powerful, suitable for music as well as movies.

Its digital calibration and setup options allow the DD-12 to perform well in rooms where subwoofers without this sort of technology are unable to realize their potential, virtually eliminating the minor response deviations in the bass range and producing an extremely linear frequency response.

Specifications

Digital Drive DD-12 sealed-box powered subwoofer
Driver: 12" cone with 19.3-lb magnet structure, tandem 3" push-pull voice coil
Frequency response: 17–120Hz, +/-3dB
Harmonic distortion: <1% typical
Highpass crossover: 80Hz @ 6dB/octave
Lowpass crossover: 15–199Hz, variable in 1Hz increments; 6–48dB/octave slope
Subsonic filter: 15–35Hz, variable in 1Hz increments; 6–48dB/octave slope
Phase: 0–180°, variable in 15° increments
Amplifier output: 1250W RMS, 3000W peak
Inputs: line-level L&R, LFE (mono) line-level RCA, balanced XLR, speaker level L/R
Microphone: balanced XLR
Through (L&R): line-level RCA
EQ output: video, L&R
Other inputs/outputs: RS-232 in, RS-232 out
Dimensions: 14.5" x 14" x 15.5" (HxWxD)
Weight: 75 lbs