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發表於 2010-11-24 06:52 AM
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本帖最後由 Triangel 於 2010-11-24 07:13 AM 編輯 The Chord Electronics SPM 4000 is Chord's highest stereo power amplifier, offering their state of the art technology, combined with enormous reserves of instantly delivered, precisely controlled power that make the SPM 4000 sound effortless and able to fill even some of the largest spaces. Arguably the ultimate stereo power amplifier for just over £11k, the SPM 4000 is only bettered by going for a set of Chord's mono power amplifiers.
The SPM 4000 features a high frequency power supply that works on approx. 51Hz rather than the standard 50Hz of UK power supplies, the amplifier is isolated from the effect that poor quality or noisy mains that can have on the sound of traditional amplifiers that are based on standard toridial transformers. The power supply rails operate nominally at ± 110 volts (Not 220 in HK ), well above that which most amplifiers can accommodate. This and other advanced techniques enables the ultra high frequency low ESR power supply to store a great deal more energy far more efficiently. Clipping is virtually impossible. Furthermore, compared to other amplifiers of asimilar power rating the SPM 4000 weighs in at a mere 50Kg. Another new technique is used to protect the amplifier against overload, internal and external short circuits. The output signal path is totally free of any fuses or sound-degrading resistive components often employed for overload sensing. The SPM 4000 is designed to surpass the highest European safety and electromagnetic interference standards.
The amplifier sections are also highly sophisticated designs that make the most of the best high voltage, lateral structure MOSFETs available, 32 x 150 watt devices per channel. Combining the subtlety and musicality of a good valve design with the punch and accuracy of 'state of the art' solid state products. The result is a 'sliding bias' class A/B design with all drive circuitry operating in class A. At usual listening levels, most of the music will be reproduced in class A. Chord's no-compromise design philosophy means there is no better built amplifier. Individually hand-crafted, it is constructed to aerospace standards from the circuit boards up.
The SPM 4000 features both balanced (XLR) and single ended (Stereo) inputs for connection to a pre amplifier and gold plated speaker terminals accepting spade or banana connections. Machined from solid aluminium in double height casing, the SPM 4000 is a monster, offering enormous reserves of power that will drive some of the most demanding loudspeakers available with ease. Book a demo to hear what you've been missing. |
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