Kenwood Audio Receiver AR 404 Manual

The Kenwood Audio Receiver AR 404 is a high-quality stereo receiver featuring AM/FM tuner, multiple audio inputs, speaker outputs, tone controls, and remote control operation. With 100 watts per channel output, this receiver delivers powerful, clear audio performance for home entertainment systems. Below are key sections for safety, features, installation, setup, operation, and troubleshooting.

1. Features at a Glance 2. Installation 3. First-Time Setup 4. Specifications 5. Controls and Settings 6. Connecting Devices 7. Radio Operation 8. Audio Settings 9. Care & Maintenance 10. Regulatory Information 11. Troubleshooting

Features at a Glance

Key components: Stereo amplifier, AM/FM tuner, Remote Control, Speaker terminals, Audio input jacks, Headphone jack, Power connector.

Feature	Description
Power Output	100W per channel (8 ohms)
Tuner Section	AM/FM stereo with 30 presets
Audio Inputs	CD, AUX, Phono, Tape
Speaker Outputs	A/B speaker selection
Headphone Jack	For private listening
Tone Controls	Bass, Treble, Balance
Remote Control	Full function remote included
Power Supply	AC 120V, 60Hz
Dimensions	17" W × 5" H × 14" D
Weight	15.4 lbs

Installation

Unpack and inspect contents. Place on stable, well-ventilated surface.

Connect speakers: Use speaker wire to connect to A/B speaker terminals.
Connect audio sources: Use appropriate cables for CD player, turntable, tape deck.
Connect antenna: Attach FM antenna and AM loop antenna.
Plug into AC power outlet.

WARNING! Ensure proper ventilation; do not block ventilation openings. Use correct speaker impedance.

First-Time Setup

Power on receiver; initialize system settings.

Set input source: Select CD, AUX, Phono, or Tape as needed.
Tune radio: Use TUNING knob to find stations; press MEMORY to store presets.
Adjust volume: Start with low volume and increase gradually.
Set tone controls: Adjust bass and treble to preference.

CAUTION! Do not connect speakers while power is on. Ensure all connections are secure.

Specifications

Power Output: 100W + 100W (8 ohms, 20Hz-20kHz)
Total Harmonic Distortion: 0.08%
Frequency Response: 10Hz-100kHz
Signal-to-Noise Ratio: 100dB
Tuner Section: FM/AM with 30 station presets
Input Sensitivity: Phono: 2.5mV, CD/AUX: 200mV
Input Impedance: Phono: 47k ohms
Tone Controls: Bass ±10dB, Treble ±10dB
Power Consumption: 240W
Dimensions: 430 × 128 × 355 mm

Controls and Settings

Front Panel: POWER, VOLUME, INPUT SELECTOR, TUNING, BASS, TREBLE, BALANCE, SPEAKER A/B.

Remote: POWER, VOLUME, MUTE, INPUT SELECT, TUNING, PRESET, BASS, TREBLE.

Input Selection: CD, AUX, Phono, Tape. Tone Controls: Bass (±10dB at 100Hz), Treble (±10dB at 10kHz). Balance: Left/Right channel balance. Speaker Selection: A, B, A+B. Tuner: Manual tuning, auto seek, preset memory.

Connecting Devices

Audio Sources: CD player, turntable, tape deck, auxiliary devices. Speakers: Main speakers A/B.

Turn off receiver before connecting devices.
Match cables to inputs (RCA for audio sources).
Connect turntable to PHONO input only.
Select appropriate input source on front panel.

Tip: Use high-quality cables for best audio performance. Keep cables away from power cords.

Radio Operation

AM/FM stereo tuner with 30 station presets.

Select tuner input: Press INPUT until TUNER is selected.
Tune stations: Use TUNING knob or remote arrows.
Store presets: Tune to station, press MEMORY, select preset number.
Recall presets: Use numbered buttons or PRESET buttons.
FM stereo: MONO/STEREO switch for weak signal areas.
Auto seek: Press and hold TUNING for automatic station search.

WARNING! Ensure proper antenna connection for best reception. Avoid placing near computers or other electronic devices.

Audio Settings

Tone Controls: Adjust bass and treble to suit listening environment and music type. Balance: Correct left/right channel imbalance. Loudness: Enhance bass at low volume levels. Speaker Selection: Choose A, B, or both speaker sets.

Care & Maintenance

Unplug before cleaning. Use soft, dry cloth for exterior. Keep away from moisture and extreme temperatures.

CAUTION! Do not use liquid cleaners or aerosols. Ventilation openings must remain unobstructed.

Regulatory Information

Troubleshooting

Symptom	Possible Cause	Corrective Action
No power	Power cord/outlet	Check power connection; try different outlet.
No sound	Speaker connections/volume	Check speaker wires; ensure volume not muted.
Poor radio reception	Antenna placement	Reposition FM antenna; extend AM loop antenna.
Distorted sound	Input level/speakers	Reduce volume; check speaker impedance.
Remote not working	Batteries/obstacles	Replace batteries; ensure clear path to sensor.

Reset: Disconnect power for 30 seconds to reset microprocessor.

Service: Contact authorized Kenwood service center for repairs.