Used Good
The Velodyne CT‑100 is a powered active subwoofer that emerged in the late 1990s and early 2000s as an affordable, high‑performance bass extension solution for home audio systems. Velodyne has long been respected for pioneering servo‑controlled subwoofer technology and robust low‑frequency performance, and the CT‑100 exemplified that reputation in a more compact package designed to compete with contemporaries at similar price points.
At its heart, the CT‑100 uses a 10‑inch forward‑firing woofer paired with a bottom‑firing ported enclosure, helping it produce deep bass down to around 28 Hz (–3 dB) — a notably strong extension for subs of its size during its time. It houses a built‑in 100 W RMS Class A/B amplifier with up to ~250 W peak power, giving it both muscle and control when reproducing low frequencies.
The CT‑100 was designed to be versatile in setup: it includes both line‑level and speaker‑level inputs, adjustable low‑pass crossover (40–120 Hz) and phase control (0/180°), plus volume and auto‑on controls, allowing it to be tailored to various system configurations and room acoustics. Such flexibility made it a popular choice for pairing with bookshelf, tower, or surround speakers with limited low‑end capabilities.
Users who came to own the CT‑100 generally praise it for robust output and deep extension at its price point — particularly for home theater effects and movie soundtracks. In classic user reviews, listeners have described the sub as having “great punch and deep bass, enough to satisfy a rocker appetite” and “excellent authority and power, especially considering its range and price.”
Many owners also note that the CT‑100 can be surprisingly musical and clean with music playback, provided it’s tuned properly. One reviewer commented that it “delivers smooth, accurate bass even at modest volumes, without sounding boomy or one‑note,” underscoring its balanced character when integrated into a stereo or multichannel system.
Today, the CT‑100 is appreciated among audio enthusiasts as a nostalgic yet capable performer, especially for second systems, budget builds, or vintage separates setups — and it often outperforms similarly sized subs from its era.
Key Specifications
Here’s a consolidated list of the main specifications for the Velodyne CT‑100:
Type: Powered active subwoofer (Class A/B)
Driver: 10″ forward‑firing woofer with 2″ four‑layer copper voice coil
Amplifier Power: 100 W RMS / ~250 W peak
Frequency Response: ~28 Hz – 120 Hz (±3 dB)
Low‑Pass Crossover: Adjustable 40 – 120 Hz (12 dB/24 dB slope)
High‑Pass Crossover: 85 Hz passive (6 dB/octave)
Inputs: Line‑level (RCA) and speaker‑level inputs
Outputs: Line‑level and speaker‑level pass‑through
Controls: Volume, low‑pass frequency, phase (0/180°), auto on/off
Protection: Anti‑clipping and over‑excursion circuitry
Crossover Slope: 12 dB/octave initial, 24 dB/octave ultimate
Cabinet: Ported enclosure (front woofer, bottom port)
Dimensions: ~17″ H × 14″ W × 17.5″ D
Weight: ~53 lb (24 kg)
Phase Control: 0°/180° selectable
Finish: Typically matte black
User & Enthusiast Impressions
“Great with movie effects; plenty of punch and deep bass for a mid‑size room.” — Long‑time owner review.
“Smooth, accurate bass that doesn’t overpower the mix — musical yet powerful.” — Vintage user feedback.
“Setup control panel may be basic, but when tuned it integrates well with mains.” — Community commentary.
Bottom Line: The Velodyne CT‑100 Subwoofer remains a respected classic among vintage audio gear, offering deep, powerful bass, versatile connectivity, and tunability that helped it stand out in its era. While surpassed by modern subwoofers in technical refinement, it continues to be valued for its performance and legacy in home theater and music systems.