azur 651A

Speaker B connections

The Speaker B connections on the back of the amplifier allow for a second set of speakers to be used (i.e. speakers located in another room). The Speaker A/B button on the remote control allows the two sets of speakers to be toggled on and off. Refer to the Remote Control section of this manual for more information on the Speaker A/B operation.

Set either A or B, or both A and B may be selected for use.

Note: When using two pairs of speakers, use speakers with a minimum nominal impedance of 8 ohms each.

Speaker A

Main Room

Amplifier

Speaker B

Room Two

Pre-Out connections

ENGLISH

The Pre-Out sockets are for connecting to the input sockets of a power amplifier, or active subwoofer. The diagram below shows how to connect the amplifier to an active subwoofer via either a mono Sub in or Stereo Line In inputs on the subwoofer.

Right

speaker

Amplifier

Left

speaker

 

Or

Sub

Line

In

In

Subwoofer

 

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Cambridge Audio 651A user manual Speaker B connections, Pre-Out connections

651A specifications

Cambridge Audio’s 651A integrated amplifier stands as a testament to the company's dedication to providing high-quality audio performance. Designed to deliver a rich sound experience, this amplifier combines technology and craftsmanship, making it a favorite among audiophiles and casual listeners alike.

One of the key features of the 651A is its Class AB amplification design. This technology ensures that the amplifier produces a warm and dynamic sound, with plenty of detail and clarity. The output power of 75 watts per channel at 8 ohms makes it capable of driving a wide range of speakers, providing impressive dynamic range without distortion.

The 651A is equipped with a high-quality digital-to-analog converter (DAC), which enhances the audio signal from various sources, including digital music players and computers. This DAC is especially beneficial for users who want to enjoy superior sound quality from their digital library. The amplifier also includes multiple inputs, such as five line-level connections and a dedicated phono stage for turntables, allowing users to connect their favorite sources with ease.

Cambridge Audio’s 651A features a comprehensive power supply designed to deliver steady and clean power to the amplifier. This is crucial for maintaining audio integrity, especially during demanding musical passages. The heavy-duty toroidal transformer plays a vital role in this aspect, providing efficient power distribution for optimum performance.

In terms of build quality, the 651A boasts a robust and stylish chassis that not only enhances its aesthetic appeal but also minimizes vibration and interference. The intuitive front-panel design includes a large volume knob and source selection buttons, making it easy to navigate through various inputs.

Additionally, the 651A incorporates advanced technology such as the proprietary Cambridge Audio Adaptive EQ. This feature allows the amplifier to optimize sound quality based on your listening environment, ensuring that you always enjoy the best possible audio experience.

Overall, the Cambridge Audio 651A integrated amplifier combines high-quality components with advanced technology, resulting in a product that offers remarkable sound performance and versatility. Whether you’re enjoying classic vinyl records or streaming the latest digital hits, the 651A provides an immersive listening experience that stands out in the crowded audio market. This amplifier exemplifies Cambridge Audio's commitment to innovation and quality, making it a top choice for those seeking both performance and reliability in their audio setup.