Kingrex SLAP, Руководство пользователя

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Pure DC is the best power source for the Hi End audio equipment. However, it is difficult to provide pure DC for
high watt power amplifiers as the large capacitor (battery) size required to meet the transient and bass demands
require careful design considerations for practical use consideration.
The power voltage and current supply is very important for operating the power amp which if not properly
designed, will affect the sonic performance directly.
The output stage of a power amplifier during peak power operation will draw a instantaneous high current from
the DC voltage rails. DC voltage is supplied by the rectifier diodes, which convert AC to DC, to and through the
filtering capacitors, which smooth the ripple voltage and also act as a power reservoir. Performance of the power
supply largely depends on the capacity of these components. When the output power of the amp is relatively low,
the demand on the current is small and steady, the supply will be stable and will not deteriorate. When the output
power is relatively high, more DC current will be drawn from the capacitors, putting a strain on the rectifier diodes
and causing AC ripple voltage. When a ripple voltage exists, it will cut short the recharging time of the capacitors
and develop a 120Hz pulse noise that in turn interfere the output stage transistors, inducing distortion within the
audible frequencies. The best solution to overcome this is by adopting a power supply capable of extremely large
current(probably 5 to 10 times of what is required to meet normal demand) and very large capacitors to sustain the
supply. Under such circumstances, a reliable battery power supply can fulfill the dual role of large current and large
capacitor.
The battery power supply provides the required current for operation while maintaining a very large reserve for
transient and bass heavy passages. The SLAP uses YUASA NP7-12 (12V/7AH) sealed lead-acid battery which has
a maximum output of 105A w/o pulse noise which is a very good match for the under 20 Watt output of Class T or
Class D amplifiers.
Why the SLAP(battery power) is better than a PSU(linear power supply)?