Read these instructions.
Keep these instructions.
Heed all warnings.
Follow all instructions.
Install in accordance with the manufacturer's Instructions.
Do not use the speakers near water, and do not immerse them in any liquid or pour any liquid on them.
Do not block the openings in the speaker cabinets, never push objects into speaker vents or slots because of fire or electric shock hazards, and provide sufficient space around the speakers for proper ventilation.
The apparatus shall not be exposed to dripping or splashing and that no objects filled with liquids, such as vases, shall be placed on the apparatus.
Do not install near any heat sources such as radiators, heat registers, stoves, or other apparatus (including amplifiers) that produce heat.
Do not defeat the safety purpose of the polarized plug.
A polarized plug has two blades with one wider than the other. The wide blade is provided for your safety. If the provided plug does not fit into your outlet, consult an electrician for replacement of the obsolete outlet.
Protect the power cord from being walked on or pinched particularly at plugs, convenience receptacles, and the point where they exit from the apparatus.
For added protection during lightning storms, unplug the speakers from the electrical outlet and turn off the computer.
Unplug this apparatus when unused for long periods of time.
Water and moisture 
Ventilation 
Location 
Cleaning 
Lightning 
Servicing is required when the apparatus has been damaged in any way, such as 
Please adjust the audio to proper volume to avoid damaging your health and the system.
2005
R451 specifications
Edifier Enterprises is renowned for its commitment to delivering high-quality audio products, and the R451 speaker system epitomizes this legacy. Designed with both aesthetics and performance in mind, the R451 caters to audiophiles and casual listeners alike, making it an ideal choice for diverse listening environments.One of the standout features of the R451 is its dynamic range. This bookshelf speaker system utilizes a two-way design, which includes a 4-inch bass driver and a 13mm silk-dome tweeter. This configuration allows for a broad sound spectrum, ensuring that low frequencies are delivered with depth and richness, while high frequencies remain clear and crisp. This balance makes the R451 particularly effective for reproducing various music genres, from classical to electronic.
The R451 also incorporates advanced technologies that enhance audio quality. Its built-in digital signal processor (DSP) optimizes sound performance by preventing distortion, ensuring that even at high volume levels, the audio remains pure and nuanced. Additionally, the inclusion of a crossover network efficiently divides the audio signal between the bass and treble drivers, allowing each speaker to perform at its best.
Another notable characteristic of the R451 is its versatile connectivity options. It features multiple input ports, including RCA and AUX, allowing users to connect various devices like smartphones, computers, or turntables with ease. This flexibility makes the R451 not just a speaker system, but a multimedia hub for any audio setup.
Aesthetically, the R451 boasts a sleek design with a wood finish that complements both modern and traditional decors. The compact size of the speakers makes them suitable for any room, whether as part of a home theater system or in a workspace.
In terms of usability, the R451 is user-friendly, featuring simple controls for volume and bass adjustment, allowing users to tailor their listening experience according to their preferences.
In conclusion, the Edifier R451 represents a fusion of style and substance. With its comprehensive range of features, cutting-edge technology, and user-centric design, it stands as a formidable contender in the realm of bookshelf speakers, offering an engaging listening experience for everyone.