Product Description Preamplifier circuit does not use an operational amplifier (IC), it adopted the current feedback amplifier circuit of the full-discrete configuration. Further implement a discrete amplifier module HDAM®-SA2 + HDAM®-SA3 boasts an overwhelming high slew rate, achieve excellent channel separation leads to the high speed of a super-high region. The power amplifier of full discrete, newly equipped with the V / I servo circuit. Perform an efficient accurate amplification, faithfully feed the audio signal to the transistor of the final. Not only reducing noise, reproduces the sense of scale that exceeds the class. And, after conducting a sound quality consider using a large speaker, verify that it is properly played until every corner of the music. Wiring performs a sound making top of also carefully adjusted and confirmed such or ground potential (routing of the wiring), improve the sound quality to change the power primary relay surge current to the big thing. In addition, increase the expressive power of sound aims to stabilize the bias circuit. Such as capacitors and transistors, it conducted a review of the circuit components that give significant impact on the sound quality, use a large number of audio-only parts. Adopt a gold-plated pin jack to all of the voice input / output terminal. Design, Marantz tradition symmetry (symmetric) layout, consists of a three-piece front panel, in the piece of the left and right of the beautiful round form, the center of a material with a damping effect that incorporates a glass fiber - to support the aluminum panels, both at a high level design and sound quality. Also with an automatic standby function, it will be automatically placed on standby when the state you do not operate for 30 minutes in a state where there is no input of the voice continues, reduce the wasteful power consumption. This feature can be set ON / OFF of the main unit.