marantz 1520 manual

The Marantz 1520 is a high-performance stereo receiver featuring 150 watts per channel, advanced audio processing, multiple connectivity options including phono input, digital inputs, and Bluetooth compatibility. Below are key sections for safety, features, installation, setup, operation, and troubleshooting.

Features at a Glance

Key components: High-power amplifier section, Remote Control, Phono input, Digital inputs, Bluetooth connectivity, Speaker terminals.

Feature	Description
Power output	150 watts per channel (8 ohms)
Phono input	For turntable connection with MM cartridge
Digital inputs	Optical and coaxial digital inputs
Bluetooth	Wireless audio streaming capability
Speaker terminals	For A/B speaker connections
Headphone jack	For private listening
Tone controls	Bass and treble adjustment
Loudness	Enhances bass at low volumes
Source direct	Bypasses tone controls for pure sound
Remote control	Full function remote included

Installation

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

1. Connect speakers: Use speaker wire to connect to A/B speaker terminals.
2. Connect audio sources: Use appropriate inputs for turntable, CD player, etc.
3. Connect digital sources: Use optical or coaxial cables for digital audio.
4. Plug into AC power outlet.

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

First-Time Setup

Power on receiver; follow initial setup procedure.

1. Speaker setup: Select A/B speakers using front panel controls.
2. Source selection: Choose appropriate input for each connected device.
3. Bluetooth pairing: Enter pairing mode and connect mobile device.
4. Audio adjustment: Set bass, treble, and balance to preference.

CAUTION! Ensure all connections are secure before powering on.

Specifications

• Power Output: 150W + 150W (8 ohms, 20Hz-20kHz)
• Total Harmonic Distortion: 0.05%
• Frequency Response: 10Hz-100kHz
• Inputs: Phono, CD, Tuner, Aux, Tape, Digital optical/coaxial
• Outputs: Speaker A/B, Tape out, Headphone
• Bluetooth: Version 4.0, A2DP profile
• Dimensions: 17-1/4" W x 6" H x 15-3/4" D
• Weight: 25.4 lbs
• Power Requirements: 120V AC, 60Hz

Controls and Settings

Front Panel: POWER, VOLUME, SOURCE SELECT, SPEAKER A/B, TONE controls, HEADPHONE jack.

Remote: POWER, SOURCE SELECT, VOLUME, MUTE, TONE controls, numeric buttons for presets.

Audio Controls: BASS, TREBLE, BALANCE, LOUDNESS, SOURCE DIRECT. Source Selection: PHONO, CD, TUNER, AUX, TAPE, BLUETOOTH. Speaker Selection: A, B, A+B. Display: Source indicator, volume level, Bluetooth status.

Connecting Devices

Analog: Phono, CD, Tuner, Aux inputs. Digital: Optical/coaxial inputs. Wireless: Bluetooth.

1. Turn off receiver before connecting devices.
2. Match cable types to appropriate inputs.
3. Ensure proper grounding for phono input.
4. Select corresponding source on front panel or remote.

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

Audio Sources

Supports multiple audio sources including vinyl, CD, digital, and wireless.

1. Phono: Connect turntable with ground wire; select PHONO source.
2. CD Player: Use CD input with RCA cables.
3. Digital Sources: Connect via optical or coaxial cables.
4. Bluetooth: Pair device and select BLUETOOTH source.
5. Tuner: Connect FM/AM antenna for radio reception.

WARNING! Do not connect phono source to non-phono inputs.

Advanced Features

Source Direct: Bypasses tone controls for pure audio signal. Loudness: Compensates for Fletcher-Munson curve. Tone Controls: Adjustable bass and treble. Speaker Selection: A/B speaker switching.

Care & Maintenance

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

CAUTION! Do not use liquid cleaners; avoid blocking ventilation openings.

Regulatory Information

FCC Part 15: Class B digital device compliant. CE marked for European compliance. Copyright © 2024 Marantz; all rights reserved. For support, visit www.marantz.com or contact customer service.

Troubleshooting

Symptom	Possible Cause	Corrective Action
No sound from speakers	Speaker connections/settings	Check speaker wires; ensure A/B speakers selected; verify volume level.
Distorted sound	Overload/connections	Reduce volume; check source device; verify proper connections.
Bluetooth not connecting	Pairing mode/distance	Ensure receiver in pairing mode; check device distance; reset pairing.
Phono input noisy	Grounding/cables	Verify ground wire connected; check cartridge alignment; replace cables.
Remote not working	Batteries/obstructions	Replace batteries; ensure line of sight to IR sensor; check distance.

Reset: Disconnect power for 30 seconds to reset.

Service: Contact authorized Marantz service center for repairs.