Marantz PM7001KI manual PM7001 KI Version Features

ENGLISH

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

1

2

-

+

-

+

L

R

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.

PM7001 KI Version Features

Compared to the PM7001, the PM7001 KI version contains the following upgrades.

• Current Feedback PHONO Equalizer

A high-speed current feedback circuit similar to the pre-amplifier and main-amplifier circuits was adopted in the PHONO equalizer for the MM cartridge.

• Newly Developed Toroidal Transformer

A newly developed Toroidal power transformer, which produces less vibration and magnetic leakage flux than previously, has been incorporated. The materials and manufacturing process of the ring-shaped core are strictly controlled to reduce vibration, while the short-ring attached to the perimeter of the transformer reduce magnetic leakage flux.

• High Performance Volume

The volume controller, which is often considered to be the core function of an amplifier, has been upgraded to an even more reliable type of controller.

• Large Capacitance Block Capacitor

A large capacity 18000∝F block capacitor is incorporated into the main-amplifier power supply circuit.

• Film capacitors and electrolical capacitors etc.

The capacitors used in high end models like the PM-11S1 are incorporated into the PM7001 amplifier.

• Copper-coated Chassis

2