Linn KLIMAX CHAKRA 500 Twin, Руководство пользователя

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10
Installation
Mains supply
Operation
The KLIMAX CHAKRA 500 Twin has Automatic Voltage Selection (AVS), allowing it to operate from 90 Vac to
253 Vac. This allows it to be connected to the mains anywhere in the world and the internal power supply will
automatically adjust to the incoming supply. When used with a mains supply below 140 Vac, two seconds after
switching on the amplifier, the power supply switches to its low range.
Mains supply and performance
The KLIMAX CHAKRA 500 Twin’s switch mode power supply provides excellent tolerance to lesser quality mains
supplies, allowing it to perform at close to its best, even with supplies that are fairly badly corrupted.
Perhaps an even more significant benefit is that, unlike conventional power amplifiers, it has very little impact on
the incoming mains supply. Contrary to popular belief, a conventional audio amplifier does a lot more damage to
the mains supply than just about anything else in your house and the mains distortion introduced in this way can
adversely affect the performance of other audio components.
Linn’s switch-mode powered amplifiers circumvent this problem and can therefore help to improve the sound of
all the other components in the system.
Mains supply and output power
For all normal music or AV system operation the actual 'average' output power of the KLIMAX CHAKRA 500 Twin is
much less than its maximum rating of 200 watts per channel, thus providing an abundance of headroom. For
example, a reasonable listening level requires an average output of about 1 watt per channel and a very
enthusiastic listening level would average about 40 watts per channel. With most loudspeakers, 2 x 40 watts
output would give an SPL (sound pressure level) of between 100 dBA and 110 dBA, which is a level of
considerable power (in real terms it approximates to ‘loud party’ volume).
The maximum continuous output of the KLIMAX CHAKRA 500 Twin is something that very few loudspeaker drive
units (or crossovers) could endure for more than a few seconds. And a typical tweeter, for example could only take
it for a fraction of a second, before its voice-coil vaporised. All this means that even though the 'on the laboratory
bench' measurements could show an input power of almost 1000 watts with a constant tone input and full rated
power, in actual operation it is never anywhere near this level. Given adequate ventilation, the amplifier will
operate continuously in any music or AV system at any realistic power level.
With a low mains supply (100 - 115 V), it should however be noted that using maximum load and a signal
generator on its input, the mains fuse may blow because lower voltage mains supplies are unable to safely
provide the amplifier with enough power to sustain its continuous maximum output.
Although it is extremely unlikely that the failure to achieve maximum power from your KLIMAX CHAKRA 500 Twin
will ever be an issue for anyone, if you do live in a part of the world that operates one of the lower mains voltages,
installation of a mains supply of 200 V or above for this product is likely to be beneficial in terms of performance.