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Canopus - Mono Power Amplifier
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Do you own a home cinema system which fails to please when you listen to music?

Or are you in the process of building up a good but value-for-money, traditional audio system?

Perhaps you need a couple of identical power amps in order to bi-amp your speaker system, or even drive it actively?

Maybe you need help in setting up a multi-room system?

For all these purposes, the CANOPUS mono power amp could be the ideal choice.

The vast majority of amplifiers in our digital age - due to typically high input levels - do not have a preamplifier, but instead have only a volume pot followed by the power amplifier. Consequently, sound quality is entirely determined by the actual power stage.

However, power amplifiers are very often - especially those normally used in less expensive home cinema components - of inferior quality. The poor sonic results from such amplfiers is unsurprising when you consider that their power stages often claim to deliver several-hundred watts of power when they are only fed by one- or two-hundred-VA power supplies. In more demanding applications, such as music reproduction, this low-tech approach is pathetically inadequate. Luckily, as most home cinema amplifiers and receivers have 'pre-amp' outputs for connection to outboard power amplification, this problem can be cured by adding power amps, such as the CANOPUS.

As a multifunctional component, it can be used in multichannel home cinema set-ups, as well as in true audio applications, with excellent results.

The CANOPUS is a 3-stage, Class-AB mono power amp design, using fully discrete components. Its power supply consists of a 100 VA torodial transformer and two 10,000 �F capacitors, manufactured by BHC to Heed's own specifications, whilst its output stage is built with complementary Darlington, 25 A power transistors. Due to its balanced circuit topology, the CANOPUS is barely susceptible to external interference. Its input sensitivity and impedance enable the user to connect the CANOPUS directly to a CD-player or one of our phono stages.

But have compromises been made for size and price? Absolutely not! The CANOPUS is a discrete design in the best audiophile tradition, extensively hand-built with custom-made components inside. This has all been achieved at a price that almost beggars belief, and with an accomplished sound quality that high-end audiophiles cannot believe.

In short, it is almost a unique high-end bargain!

Technical Specifications:
Input Sensitivity/Impedance: 500mV/10 kOhm
Power Output (continuous, 20Hz-20kHz): 35/50 W (8/4 Ohm)
Signal to Noise ratio: 100 dB
Distortion: 0,03%
Frequency Range (Filtered): 4 Hz - 60kHz (+/- 1dB)


Download [ Paul Messengers review of the Canopus & Luna system from Hi Fi Plus issue 30. ]
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