Kenwood 440S Manual

The Kenwood 440S is a professional-grade stereo receiver featuring AM/FM tuner, 40 watts per channel output, multiple audio inputs, phono preamp, tone controls, speaker selector, and remote control capability. Designed for high-fidelity audio reproduction with advanced tuning features and connectivity options. Below are key sections for safety, features, installation, setup, operation, and troubleshooting.

Features at a Glance

Key components: Stereo receiver with AM/FM tuner, Remote Control, Multiple audio inputs, Speaker terminals, Phono input, Headphone jack, Tone controls.

Feature	Description
AM/FM Tuner	Digital tuning with preset stations
Audio Output	40 watts per channel (8 ohms)
Phono Input	For turntable connection with RIAA equalization
CD Input	Dedicated input for CD players
Aux Input	For additional audio sources
Tape Monitor	Tape input/output with monitoring
Speaker Selector	Switch between speaker sets A/B
Headphone Jack	For private listening
Tone Controls	Bass and treble adjustment
Loudness Control	Enhances bass at low volumes

Installation

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

1. Connect speakers: Use speaker wire to connect to A/B terminals, observing polarity.
2. Connect antenna: Attach FM antenna to antenna terminals; AM loop antenna to AM terminals.
3. Connect audio sources: Use appropriate inputs (Phono, CD, Aux, Tape).
4. 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.

1. Set input source: Rotate INPUT selector to desired source (Phono, CD, etc.).
2. Tune radio: Press TUNER button, use tuning knob or seek function to find stations.
3. Set presets: Store favorite stations in memory (up to 30 presets).
4. Adjust tone: Set bass and treble to preference; engage loudness if desired.
5. Select speakers: Choose speaker set A or B using speaker selector.

CAUTION! Ensure all connections are secure before powering on.

Specifications

• Power Output: 40 watts per channel (8 ohms, 20Hz-20kHz)
• Total Harmonic Distortion: 0.08% (1kHz)
• Frequency Response: 10Hz-50kHz (+1/-3dB)
• Input Sensitivity: Phono: 2.5mV, CD/Aux: 150mV
• Signal-to-Noise Ratio: Phono: 80dB, CD/Aux: 95dB
• Tuner Section: AM/FM with 30 station presets
• Inputs: Phono, CD, Aux, Tape
• Outputs: Speaker A/B, Tape Out, Headphone
• Power Requirements: 120V AC, 60Hz, 180W
• Dimensions: 17-1/8" W × 5-1/4" H × 13-3/8" D

Controls and Settings

Front Panel: POWER, INPUT SELECTOR, VOLUME, BASS, TREBLE, LOUDNESS, SPEAKER SELECTOR, TUNING, HEADPHONE JACK.

Remote: POWER, VOLUME UP/DOWN, MUTE, INPUT SELECT, TUNER PRESETS, TUNING.

Tone Controls: Bass (±10dB at 100Hz), Treble (±10dB at 10kHz). Tuner: Manual tuning, auto seek, preset memory. Input Selection: Phono, CD, Aux, Tape. Speaker Selection: A, B, A+B, Off.

Connecting Devices

Multiple audio source connectivity with dedicated inputs.

1. Turntable: Connect to PHONO input using RCA cables.
2. CD Player: Connect to CD input using RCA cables.
3. Tape Deck: Connect to TAPE IN/OUT for recording/playback.
4. Additional sources: Use AUX input for other devices.
5. Speakers: Connect to SPEAKER terminals observing polarity.

Tip: Turn volume to minimum when connecting/disconnecting devices.

Radio Operation

AM/FM tuning with preset memory capability.

1. Select tuner: Press TUNER button on front panel or remote.
2. Tune stations: Use TUNING knob or SEEK buttons to find stations.
3. Store presets: Tune to desired station, press and hold preset button (1-30).
4. Recall presets: Press numbered preset button for instant station access.
5. FM stereo: Automatic stereo/mono switching; stereo indicator lights when receiving stereo signal.
6. AM tuning: Use AM band for news, talk, and sports programming.

WARNING! Ensure proper antenna connection for best reception.

Audio Features

Tone control system with loudness compensation and source direct mode.

Bass/Treble Controls: Adjust frequency response to room acoustics and listening preference. Loudness: Engages bass boost at low volume levels for fuller sound. Source Direct: Bypasses tone controls for pure signal path. Tape Monitor: Allows recording from any source while listening to another.

Care & Maintenance

Unplug before cleaning. Use soft, dry cloth for exterior; compressed air for ventilation openings.

CAUTION! Do not use liquid cleaners; avoid moisture contact. Keep away from heat sources.

Regulatory Information

FCC Part 15: Class B digital device; complies with interference limits for residential use. Copyright © Kenwood Corporation. For support, visit www.kenwood.com or contact 1-800-536-9663.

Troubleshooting

Symptom	Possible Cause	Corrective Action
No power	Power cord/outlet	Check power cord connection; test outlet; ensure power switch on.
No sound	Speaker connections/volume	Check speaker wires; ensure speaker selector on; adjust volume.
Poor radio reception	Antenna placement	Reposition FM antenna; ensure AM loop antenna connected properly.
Distorted sound	Input level/speakers	Reduce volume; check source device output; verify speaker impedance.
Remote not working	Batteries/obstructions	Replace batteries; ensure clear path to IR sensor; check remote mode.

Reset: Disconnect power for 30 seconds to reset microprocessor.

Service: 1-800-536-9663; www.kenwood.com