Need help?Do you have a question about the Kenwood KAC KAC-648 and is the answer not in the manual?
Audio Output| max power output 4 channel mode | 50 W × 4 |
|---|---|
| max power output 3 channel mode | 50 W × 2 + 140 W × 1 |
| max power output 2 channel mode | 140 W × 2 |
| rated power output 4 channel mode | 25 W × 4 |
| rated power output 3 channel mode | 25 W × 2 + 70 W × 1 |
| rated power output 2 channel mode | 70 W × 2 |
| rated power output 4 channel mode (2 Ω) | 35 W × 4 |
| frequency response | 10 Hz ~ 45 kHz |
| signal to noise ratio | 100 dB |
Input and Filters| sensitivity max | 0.2 V |
|---|---|
| sensitivity min | 4.0 V |
| input impedance | 10 kΩ |
| low pass filter | 80 Hz |
| high pass filter | 150 Hz |
General Specifications| operating voltage | 14.4 V (11 ~ 16 V allowable) |
|---|---|
| current consumption | 22 A |
| dimensions | 260 × 56.5 × 209 mm |
| weight | 3.0 kg |
Precautions to prevent injury, fire, and cable damage during installation and use.
Precautions to prevent damage to the unit, such as correct connection and avoiding extreme environments.
Instructions on how to clean the unit's front panel using a soft, dry cloth.
Explains the unit's protection function, its triggers, and indicator behavior.
Lists included accessories like terminals and screws with their quantities.
Step-by-step guide for installing the amplifier, including safety steps before starting.
Guidance on choosing a suitable location and avoiding hazardous environments for the amplifier.
Identifies terminals for battery, ground, and remote power control connections.
Specifies speaker output terminals for Amplifier A and B in stereo/bridged modes.
Details speaker connection for stereo and bridged modes, including impedance requirements.
Explains input selector switch and input sensitivity adjustment for signal input.
Identifies terminals for connecting line-level and speaker-level audio signals.
Describes output jacks that pass input signals and the terminal for RCA cable ground lead.
Explains how to adjust input sensitivity based on the connected unit's output level.
Allows selection of amplification methods (Stereo, Mono) and audio filtering (HPF, LPF, OFF).
Shows a system example connecting front, rear speakers, and a subwoofer.
Illustrates a system setup for high-pass speakers and a subwoofer.
Shows a system example for a high-power two-channel configuration.
Details Tri-mode setup, crossover principles, and example calculations.
Warning about speaker impedance requirements for bridged connections to prevent unit damage.
Detailed instructions and warnings for connecting the power supply and ground cables safely.
Advice on wiring to prevent noise, secure connections, and proper fuse/cable selection.
Illustrates recommended fuse and wiring cable sizes for a single KAC-648 unit.
Illustrates how to connect speakers for stereo mode, showing polarity and terminals.
Illustrates how to connect speakers for bridged mode, showing polarity and terminals.
Guidance on choosing speakers with appropriate input power ratings and impedance.
Visual examples of speaker impedance matching for stereo and bridged connections.
Instructions for connecting the audio signal via RCA cables.
Explains RCA ground terminal use and warns against using it for power grounding.
Details how to connect using speaker-level inputs from a car stereo.
Warnings for speaker-level input connection, including power limits and potential noise.
Lists possible causes and solutions for no sound or one-sided sound.
Addresses issues with output level, linking them to input sensitivity settings.
Solves sound quality problems by checking speaker connections, polarity, and switch settings.
Lists technical audio parameters like power output, frequency response, and sensitivity.
Covers general specifications such as operating voltage, current consumption, dimensions, and weight.
To Next Page
