Technical specifications

azur 550A/650A

Troubleshooting

550A

Power output

THD (unweighted)

Frequency response (-1dB) S/N ratio (ref 1W)

Input impedances

Power Amp damping factor Max. power consumption Standby power consumption Bass/Treble controls

Dimensions

Weight

60 watts (into 8Ω)

<0.002% @ 1kHz, 80% of rated power <0.05% 20Hz - 20kHz, 80% of rated power

<0.02% 20Hz - 20kHz @ 10W

5Hz - 50kHz

>92dB (unweighted)

47kohms

>100

500W

<1W @ rated mains

Shelving, ultimate boost/cut +/- 7.5dB @ 20Hz and 20kHz

120 x 430 x 350mm

(4.7 x 16.9 x 13.8”)

8.0kg (17.6lbs)

There is no power

Ensure the AC power cord is connected securely.

Ensure the plug is fully inserted into the wall socket and is switched on. Check the unit is switched on at the rear panel.

Check fuse in the mains plug or adaptor.

There is no sound

Make sure the unit is not in Standby mode.

Check that the source component is properly connected.

Check that 'Tape Mon' is not switched on (unless tape input is required). Check that your speakers are properly connected.

Check that the correct speaker outputs are switched on (‘Speaker A/B’ button on the remote control).

If source LED is flashing, turn ‘Mute’ off.

There is no sound on one channel

Ensure that balance control is in the correct position.

Check speaker connections.

ENGLISH

650A

Power output

THD (unweighted)

Frequency response (-1dB) S/N ratio (ref 1W)

Input impedances

Power Amp damping factor Max. power consumption Standby power consumption Bass/Treble controls

Dimensions

Weight

75 watts (into 8Ω)

<0.002% @ 1kHz, 80% of rated power <0.03% 20Hz - 20kHz, 80% of rated power

<0.02% 20Hz - 20kHz @ 10W

5Hz - 50kHz

>92dB (unweighted)

47kohms

>100

600W

<1W @ rated mains

Shelving, ultimate boost/cut +/- 7.5dB @ 20Hz and 20kHz

120 x 430 x 350mm

(4.7 x 16.9 x 13.8”)

8.4kg (18.5lbs)

Check interconnects.

There is a loud buzz or hum

Check turntable or tone arm for ground and connection lead fault. Ensure no interconnects are loose or defective.

Ensure that your tape deck or turntable is not too close to the amplifier.

Unable to make or play tape recordings

Check that ‘Tape Mon’ and ‘Tape Out’ have been connected correctly.

There is weak bass or diffused stereo imaging

Ensure that speakers are not wired out of phase.

The sound is distorted

Check that the volume or tone controls are not set too high.

Protection LED flashing

See section on CAP5 protection system.

The remote handset will not function

Check that the batteries have not expired.

Ensure that nothing is blocking the remote sensor.

In the event that the above solutions do not remedy your problem, please consult our frequently asked questions (FAQ) section on our website: www.cambridge-audio.com/sts/faqs

For all servicing, in or out of warranty, please contact your dealer.

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Cambridge Audio 650A, 550A user manual Technical specifications, Troubleshooting

550A, 650A specifications

Cambridge Audio, a revered name in the audio industry, is renowned for producing high-quality amplification solutions. Among its distinguished lineup, the 650A and 550A integrated amplifiers stand out for their exceptional performance and innovative features, making them favorites for both audiophiles and casual listeners.

The Cambridge Audio 650A amplifier is designed to deliver powerful and precise sound, harnessing a robust 75 watts per channel into 8 ohms. This amplifier features an advanced toroidal transformer, which enhances efficiency and reduces electromagnetic interference, ultimately providing cleaner audio. The 650A employs Cambridge's proprietary Class A/B amplifier technology, ensuring a rich and warm sound signature that appeals to lovers of diverse music genres. Additionally, the inclusion of a high-quality headphone output allows for a private listening experience with minimal signal degradation.

In contrast, the 550A model offers a more straightforward approach while still maintaining impressive audio fidelity. Delivering 50 watts per channel into 8 ohms, the 550A is perfect for smaller setups or compact spaces. Its Simple and elegant design hides sophisticated technologies aimed at achieving high-performance output. The amplifier features a high-quality pre-amp section, making it versatile enough to accommodate various audio sources, including vinyl players, CD players, and digital streaming devices.

Both amplifiers feature a solid metal chassis that minimizes vibrations, preserving sound integrity. They also come equipped with multiple inputs, allowing users to connect different sources easily. The 650A and 550A include tone controls to customize the sound signature according to personal preferences, and discrete circuit design to enhance signal clarity further.

Additionally, both amplifiers showcase Cambridge Audio's commitment to user-friendly design principles. With intuitive controls and a clear display, users can enjoy a hassle-free experience, whether adjusting settings or switching sources.

In conclusion, the Cambridge Audio 650A and 550A integrated amplifiers exemplify the brand's dedication to high-quality audio performance. With advanced technologies, robust power, and versatile connectivity, these amplifiers cater to a broad range of listening preferences and environments, ensuring that music is experienced as the artist intended. Whether opt for the powerful 650A or the conveniently efficient 550A, users can expect an unparalleled audio experience that elevates their musical journey.