Marantz SR7300OSE Manual

The Marantz SR7300OSE is a high-performance AV surround receiver featuring Dolby Digital, DTS, and Dolby Pro Logic II decoding, 7-channel amplification with 100W per channel, multiple audio/video inputs including component video, digital optical/coaxial inputs, AM/FM tuner with 40 presets, multi-room capability, and advanced setup options with on-screen display. Below are key sections for safety, features, installation, setup, operation, and troubleshooting.

Features at a Glance

Key components: 7-channel amplifier, remote control, multiple audio/video inputs, component video switching, digital audio inputs, multi-room capability.

Feature	Description
Power Output	100W x 7 channels (8 ohms, 20Hz-20kHz)
Audio Decoding	Dolby Digital, DTS, Dolby Pro Logic II
Video Inputs	Component video, composite video, S-video
Digital Inputs	Optical and coaxial digital audio inputs
Tuner	AM/FM with 40 station presets
Multi-room	Zone 2 audio output capability
Inputs	6 audio/video inputs, phono input
Outputs	7.1 channel preamp outputs, subwoofer output
Remote Control	Learning remote with macro functions
Setup	On-screen display setup menu

Installation

Unpack and inspect contents. Place in well-ventilated area.

1. Connect speakers: Match speaker polarity (+/-) to receiver terminals.
2. Connect video sources: Use component, composite, or S-video inputs as needed.
3. Connect audio sources: Use analog or digital inputs for CD, DVD, etc.
4. Connect subwoofer: Use LFE/subwoofer output.
5. Plug into AC power.

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

First-Time Setup

Power on receiver; follow on-screen display setup.

1. Speaker configuration: Set speaker sizes (large/small) and distances.
2. Crossover settings: Configure crossover frequency for small speakers.
3. Input assignment: Assign digital inputs to appropriate sources.
4. Radio tuning: Auto-scan and store AM/FM stations.
5. Test tones: Use built-in test tones for speaker level calibration.

CAUTION! Ensure all connections are secure before powering on.

Specifications

• Power Output: 100W x 7 channels (8 ohms, 20Hz-20kHz, 0.08% THD)
• Frequency Response: 10Hz-100kHz (+1/-3dB)
• Signal-to-Noise Ratio: 100dB (line level)
• Total Harmonic Distortion: 0.08% (20Hz-20kHz)
• Inputs: 6 A/V inputs, 3 component video, phono, 4 digital audio (2 optical/2 coaxial)
• Outputs: 7.1 preamp, Zone 2 audio, component video monitor
• Tuner: AM/FM with 40 presets
• Power Consumption: 650W maximum
• Dimensions: 440mm x 427mm x 171mm (W x D x H)
• Weight: 15.5 kg

Controls and Settings

Access setup via remote control or front panel. Front Panel: POWER, INPUT SELECT, VOLUME, TONE, SURROUND MODE.

Remote: POWER, INPUT SELECT, VOLUME, MUTE, SURROUND MODE, numeric buttons, menu navigation.

Audio Settings: Bass, treble, balance, loudness, tone defeat. Surround Modes: Dolby Digital, DTS, Dolby Pro Logic II, stereo, direct. Setup Menu: Speaker configuration, input assignment, radio presets, multi-room setup.

Connecting Devices

Audio Sources: CD player, turntable (phono), tape deck, etc. Video Sources: DVD player, cable/satellite box, gaming console.

1. Turn off receiver and devices before connecting.
2. Match cable types to appropriate inputs (component, composite, digital).
3. Assign digital inputs in setup menu for proper decoding.
4. Select input via INPUT SELECT on front panel or remote.

Tip: Use high-quality cables for best audio/video performance.

Audio Setup and Calibration

Advanced audio configuration for optimal surround sound.

1. Speaker levels: Adjust individual channel levels using test tones.
2. Speaker distances: Set delay times for proper sound synchronization.
3. Crossover: Set appropriate crossover frequency (80Hz recommended).
4. Surround modes: Select appropriate decoding for source material.
5. Night mode: Dynamic range compression for late-night listening.

WARNING! Avoid extreme volume levels that could damage speakers or hearing.

Multi-Room Operation

Zone 2 functionality for second room audio.

1. Connect Zone 2 speakers to dedicated terminals.
2. Enable Zone 2 in setup menu.
3. Select Zone 2 source independently from main zone.
4. Control Zone 2 volume separately.

Note: Zone 2 operates in stereo mode only.

Care & Maintenance

Unplug before cleaning. Use soft, dry cloth only; avoid liquids.

Keep unit clean and dust-free. Ensure proper ventilation at all times.

CAUTION! Do not use chemical cleaners; keep away from moisture and heat sources.

Regulatory Information

FCC compliant: Class B digital device. CE marked for European compliance. Manufactured under license from Dolby Laboratories. DTS and DTS Digital Surround are registered trademarks. For support, visit www.marantz.com or contact authorized service centers.

Troubleshooting

Symptom	Possible Cause	Corrective Action
No sound	Input selection/speaker connections	Check input selection; verify speaker connections; ensure volume not muted.
No video	Input selection/cable connections	Verify input selection; check video cable connections; try different input.
No surround sound	Source material/settings	Ensure source has surround encoding; check surround mode selection.
Remote not working	Batteries/obstructions	Replace batteries; ensure clear line of sight to IR sensor.
Overheating	Ventilation blockage	Ensure adequate ventilation; clear vents of obstructions.
Radio poor reception	Antenna connection	Check antenna connections; reposition antenna for better reception.

Reset: Main power off for 30 seconds, then restart.

Service: Contact authorized Marantz service center; www.marantz.com