Marantz PM7001 Features, CD Direct Buffer Amplifier, CD Direct Selector, Short Power Line Layout

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FEATURES

INTEGRATED AMPLIFIER PM7001

	INPUT SELECTOR									VOLUME
			PHONO	CD	TUNER	AUX/DVD	1 RECORDER	2
						MUTE
STANDBY
			REC SELECTOR	BASS			TREBLE	BALANCE	MIN		MAX
			OFF
P OWER ON/OFF	PHONES	TUNER	CD					1	SPEAKERS	2	SOURCE DIRECT
	AUX/DVD		PHONO
	RECORDER								ON		ON
	2	1							OFF		OFF

COPY

RECORDER2

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The PM7001 is an integrated amplifier developed on the design concepts of Marantz’s PM-11S1 high-end model amplifier.

• CD Direct Buffer Amplifier

The PM7001 incorporates a specialized input buffer amplifier nearby the CD input jack.This buffer amplifier faithfully transmits the CD input jack signal by preventing interference from between the left and right channels, and from the effects of other circuits. A discrete configuration high-speed buffer amplifier which is built on the HDAM®SA technology is incorporated into the buffer amplifier circuit.

• CD Direct Selector

The output of CD direct buffer amplifier has a specialized relay switch, which directly transmits the input signal by the shortest path to the pre-amplifier.

• Improved Momentary-Current Supply Capability

It is known that sound quality differs between amplifiers that use the same spec, and Marantz believes that this is caused by differences in speaker drive capability. The PM7001 main- amplifier has the capability to momentarily pass 25 amperes or more of current, providing high-powered drive to the speakers.

• Short Power Line Layout

In order to improve the momentary-current supply capability, a new layout which places priority on making the large current line connections as short as possible was adopted.

In this layout the power supply circuit, main-amplifier output stage, and heatsink are unified, and the large current line is arranged to be as short as possible while still achieving symmetry on the left and right sides.

• Current Feedback Amplifier

Both pre-amplifier and main-amplifier incorporate a high-speed current feedback amplifier circuit, which faithfully amplify signals from the CD player. Moreover, the high-speed current feedback amplifier reproduces a natural sound field space.

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