Brochure

Specialized SMPS Operation
Small, Light and High Efficient SMPS Operation
DPA-SERIES is greater than 94% high efficient SMPS and greater than 92% high efficient amplifier and
has achieved high efficient SMPS and amplifier beyond the limitations of world top-class amplifiers.
High Power SMPS Operation beyond PA / SR Ranges
A distance between amplifiers and speakers can be long in PA system, so impedance is supposed to
be bigger by line.
But, it is unrealistic that using a thick speaker cable have cost a lot to reduce the impedance of the line.
Thus, high impedance amplifier makes the output voltage and speaker’s impedance high to keep
amplifier’s power.
Make sure that amplifier’s power should be kept enough by raising the current because the impedance
of line and speaker is low in SR system. Thus, high impedance amplifier(power amplifier) is based on
driving voltage and low impedance amplifier(SR amplifier) is based on the current drive system.
SMPS - Switch mode power supply in DPA-SERIES amplifier provides high power and high capacity.
DPA-SERIES amplifier can be used in both high impedance and low impedance system by supplying
the current to drive enough although it is connected to low impedance SR speaker.
PA
(Public Adress)
DPA SRPA
SR
(Sound Reinforcement))
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