This manual introduces the features and usage methods of the CD receiver KDC-X991
This instruction manual covers all aspects of the Kenwood KDC‑X991 car CD‑receiver, from safety precautions and wiring to detailed operation of audio, radio, and vehicle‑specific functions such as the G‑Analyzer. It includes step‑by‑step guidance for installing the unit, configuring sources, using USB/iPod devices, and troubleshooting common issues.
The latter part of the manual lists the full technical specifications of the FM/AM tuners, USB interface, audio performance, power requirements, and physical dimensions, helping installers and users verify that the unit meets their vehicle’s needs.
| FM tuner frequency range | 187.9 MHz – 107.9 MHz |
|---|---|
| USB interface standard | USB 1.1 / 2.0 |
| Maximum supply current | 2500 mA |
| Audio frequency response | 230 Hz – 15 kHz (+3 dB) |
| Signal‑to‑noise ratio (mono) | 270 dB |
| Laser diode type | GaAlAs |
| D/A converter resolution | 21 bit |
| Installation size (W × H × D) | 182 mm × 53 mm × 155 mm |
| Weight | 23.31 lb (1.5 kg) |
Press the Reset button; the unit returns to its factory settings.