About the Kenwood KAC-748
Kenwood's KAC-748 4-channel amp features variable high-pass and low-pass crossovers (50-200 Hz), front and rear. You'll get the best possible sound from your system by sending just the right frequencies to each speaker. And you'll have multiple hookup options. Drive 2 pairs of stereo speakers, or bridge the 2 rear channels to power your subwoofer, and use the 2 front channels for your main stereo pair.
This 4-channel Kenwood is built with MOSFET-switching power supplies for fast response, maximum output, and cooler operating temperatures. Larger-than-usual noise-suppression filters make sure that all you hear is music. Speaker-level inputs allow easy connection to any head unit.
Details:- 2-, 3-, 4-channel, or Tri-Way output
- 100 watts x 2 in bridged mode
- 50 watts x 4 at 2 ohms
- requires 10-gauge power and ground leads wiring and hardware not included with amplifier
- anti-thump circuit for quiet turn-on
- speaker short, thermal overload, and DC protection
- extra-large toroidal noise filters
- speaker-level inputs
- gold-plated preamp outputs
- 50-200 Hz variable high-pass/low-pass crossovers, individually-selectable on front and rear channels, 12 dB/octave
- 11-5/8"W x 2-1/4"H x 12-5/8"D
- 1-year warranty
What's in the box:
Kenwood KAC-748 owner's manual
- Black amplifier with silver trim; 30-amp blade fuses; Rubber terminal cover; 4 self-tapping mounting screws; Warranty card; Instructional manual (English/Spanish/French)
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More details on the Kenwood KAC-748
Features & specs
Performance | ||
---|---|---|
RMS Power Output (Watts x Channels) |
35 x 4 | |
Peak Power Output (Watts x Channels) | 70 x 4 | |
Power at 2 Ohms (Watts x Channels) | 50 x 4 | |
Power at 1 Ohm (Watts x Channels) | --- | |
Bridged Power (Watts x Channels) | 100 x 2 | |
Minimum Impedance Bridged | 4 | |
Minimum Impedance Unbridged | 2 | |
Minimum Impedance | 2 | |
Best Frequency Response | 5-50k Hz | |
THD at Rated RMS Power | 0.08% | |
Signal to Noise Ratio | 100 dB | |
Input Voltage | 14.4v | |
Features | ||
Amplifier Class | AB | |
Low-Pass Crossover Frequency | 50-200 Hz | |
Low-Pass Slope (dB/octave) | 12 dB | |
High-Pass Crossover Frequency | 50-200 Hz | |
High-Pass Slope (dB/octave) | 12 dB | |
Bass Boost | No | |
Bass Boost Frequency | N/A | |
Fan Cooled | No | |
Fuse Rating | 30 x 1 | |
Speaker Level Inputs | --- | |
Preamp Outputs | 1 pair Gold RCA | |
Width (inches) | 11-5/8 | |
Height (inches) | 2-1/4 | |
Depth (inches) | 12-5/8 | |
Parts Warranty | 1 YEAR | |
Labor Warranty | 1 YEAR |
Product Research
Specifications
Features
Inputs and Outputs
Specifications
Rated power output at 2 ohms: 50 W x 4 (1 kHz, 0.8% THD)
Max power output at 4 ohms: 70 W x 4
Max power output at 4 ohms, bridged: 200 W X 2
Input impedance: 10 kohms
Operating voltage: 14.4 V (11-16V allowable)
Current consumption (1 kHz, 10% THD): 28A
Features
Protection circuitry:
- Speaker output contacts ground
- Unit malfunctions and DC is sent to speaker output
- Thermal: when internal temp exceeds 248 degrees F
- Loss of ground of headunit or amp
Controls:
- Crossover frequency controls: One for A, one for B; variable from 50-200 Hz
- Filter controls: One for A, one for B; each one can be set for high pass, OFF, or low pass
- Operation controls: One for A, one for B; each one can be set for stereo, L+R combined or mono (L channel)
- Input selector: You can select A/B position when using a source unit with dual RCA outputs or A position with amplifies any signal input to the "A" by both A and B (so an RCA "Y" adapter is not needed).
- Input sensitivity knobs (variable from min to 4V): One for A and one for B
- GND screw
- Gold plated strip terminal: For power, ground and remote turn on
- Gold plated terminal strip: For front and rear; left and right loudspeakers (bridged = Left+ and Right-)
- Gold plated terminal strip: For speaker level input for front and rear; left and right loudspeakers.
- Gold plated RCA stereo input for A
- Gold plated RCA stereo input for B
- Gold plated RCA stereo output for A+B (note that this output is always stereo, even when the amp is set to mono mode)
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