KEF KASA500 DSP Controlled Class-D Amplifier
KASA500
KEF KASA500 DSP Controlled Class-D Amplifier
The KEF KASA500 is engineered to provide powerful and precise amplification for KEF Ci architectural subwoofers. Its Class-D design delivers 250W per channel into 4Ω and can be bridged to produce 500W into 8Ω at less than 1% THD. DSP-based control optimises bass performance, while the adjustable 40Hz–140Hz crossover can also be bypassed through software when required. Selectable stereo RCA, mono LFE and speaker-level inputs provide flexible system integration. With a compact 2U rack-compatible chassis and 12V trigger input, the KASA500 is designed for professional home cinema and custom installation environments.
KASA500
Details & Specifications
| Brand |
KEF |
| Model |
KASA500 |
| Product Type |
DSP Controlled Subwoofer Amplifier |
| Amplifier Class |
Class-D |
| Colour |
Black |
| Unit Measurement |
Piece |
| Stereo Output Power |
2 × 250W into 4Ω |
| Bridged Output Power |
1 × 500W into 8Ω |
| Total Harmonic Distortion |
<1% THD |
| Primary Application |
KEF Ci Architectural Subwoofers |
| Crossover Frequency Range |
40Hz–140Hz |
| Crossover Bypass |
Software Bypass |
| Control System |
DSP Controlled |
| RCA Inputs |
Selectable Stereo RCA Line-Level |
| LFE Input |
Mono RCA LFE |
| Speaker-Level Input |
Stereo Speaker Level |
| 12V Trigger Input Voltage |
8–14V DC |
| Maximum Trigger Current |
1.5mA |
| Trigger Connector |
⅛ in. Female Plug |
| Trigger Polarity |
Tip Positive or Tip Negative |
| Dimensions (H × W × D) |
88 × 432 × 304 mm |
| Dimensions |
3.5 × 17 × 12 in |
| Dimensions with Feet |
92 × 432 × 304 mm |
| Dimensions with Feet |
3.625 × 17 × 12 in |
| Dimensions with Rack Ears |
88 × 483 × 304 mm |
| Rack Dimensions |
3.5 × 19 × 12 in |
| Rack Space |
2U EIA |
| Weight |
4 kg / 9 lb |
KEF is a British loudspeaker manufacturer known for developing advanced acoustic technologies focused on accurate, natural and highly detailed sound reproduction. Its engineering approach combines innovative driver design, cabinet development and extensive acoustic research across both traditional Hi-Fi and contemporary audio systems.
Technologies such as Uni-Q® and Metamaterial Absorption Technology demonstrate KEF’s focus on improving dispersion, imaging and overall acoustic performance. From compact speakers to high-end reference designs, KEF develops products for listeners seeking precise stereo reproduction and immersive listening experiences.
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