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Protector circuit

This unit is equipped with a high-speed protection circuit. The purpose of this circuit is to protect the speakers under circumstances such as when the output of the power amplifier is inadvertently short-circuited and a large current flows, when the temperature surrounding the unit becomes unusually high, or when the unit is used at high output over a long period which results in an extreme temperature rise.

When the protection circuit is activated, the speaker output is cut off and the power supply indicator LED flashes. Should this occur, please follow these steps: be sure to switch off the power of this unit, check whether there are any faults with the wiring of the speaker cables or input cables, and wait for the unit to cool down if it is very hot. Improve the ventilation condition around the unit and switch the power back on.

If the protection circuit is activated again even though there are no problems with the wiring or the ventilation around the unit, switch off the power and contact a DENON service center.

Note on speaker impedance

The protector circuit may be activated if the set is played for long periods of time at high volumes when speakers with an impedance lower than the specified impedance (for example speakers with an impedance of lower than 4 /ohms)

are connected. If the protector circuit is activated, the speaker output is cut off. Turn off the set’s power, wait for the set to cool down, improve the ventilation around the set, then turn the power back on.

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Denon AVR-1802/882 manual Protector circuit

AVR-1802/882 specifications

The Denon AVR-1802 and AVR-882 are notable models in Denon's lineup of audio/video receivers, catering to home theater enthusiasts who demand quality sound and versatility. These receivers, popular in the early 2000s, combine advanced technologies with user-friendly features to deliver an immersive audio experience.

One of the standout features of the Denon AVR-1802 is its high-power output, capable of delivering 80 watts per channel across seven channels. This allows it to effectively drive a full home theater speaker setup, ensuring that every sound, from the subtlest whispers to the most explosive action sequences, is rendered with clarity and depth. The receiver supports both Dolby Digital and DTS decoding, allowing users to enjoy a wide array of movie soundtracks with impressive fidelity.

The AVR-882, while slightly more advanced, shares similar audio capabilities and adds features like multi-room audio support and enhanced connectivity options. It includes multiple HDMI inputs, allowing users to connect various devices such as Blu-ray players and gaming consoles without the hassle of constantly switching cables. The ability to process high-definition audio formats makes both receivers compatible with modern home theater setups.

In terms of processing power, both models utilize Denon’s proprietary processing technology, which enhances audio clarity and improves the overall listening experience. The inclusion of Advanced AL24 Processing ensures that digital audio is upsampled effectively, maintaining the integrity of sound as it passes through various stages.

Another commendable characteristic is the intuitive user interface and setup process. Denon has designed these receivers with ease of use in mind, featuring an on-screen display that simplifies the navigation of numerous settings. The presence of automatic speaker setup technology, often referred to as EQ calibration, allows users to optimize audio performance based on the unique acoustics of their room.

Connectivity options are robust as well, with numerous analog and digital inputs, including composite, component, and S/PDIF connections for versatile compatibility with older and newer devices, making these receivers suitable for a variety of setups.

Overall, the Denon AVR-1802 and AVR-882 exemplify the blend of power, technology, and convenience that Denon aims to offer, promising both casual listeners and serious audiophiles a quality audio experience that stands the test of time. Their features not only enhance home theater configurations but also ensure vibrant audio playback for music and movies alike, making them valuable additions for anyone looking to elevate their entertainment experience.