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Marantz PM-KI Ruby Integrated Amplifier
Marantz PM-KI Ruby Integrated Amplifier
Marantz-PM-KI-Ruby-Integrated-Amplifier-gold
Marantz PM-KI Ruby Integrated Amplifier
Marantz PM-KI Ruby Integrated Amplifier gold
Premium Sound UK > Products > Hifi Separates > Integrated amplifiers > Marantz PM-KI Ruby Integrated Amplifier

Marantz PM-KI Ruby Integrated Amplifier

£3,499.00

The PM-KI Ruby is built with just one aim – audio performance – which is why it uses a fully discrete two-stage design with separate power supplies for the preamplifier and power amp section to reduce interference, and draws on the design of the flagship PM-10 amplifier with its moving coil/moving magnet phono stage. Also utilised is the newly-developed low-noise Marantz Musical Premium Phono EQ circuit, with both moving coil and moving magnet capability for today’s turntables.
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SKU: Marantz-PM-KI-Ruby-Integrated-Amplifier Category: Integrated amplifiers Tag: Marantz-PM-KI-Ruby-Integrated-Amplifier
  • Description
  • Additional information

Description

Key Features

  • Engineered and extensively tuned by a team led by Ken Ishiwata, drawing on more than 65 years of Marantz amplifier design knowledge
  • Marantz high-resolution preamplifier stage using proprietary HDAM technology
  • Switching power amplifier design derived from flagship PM-10 amplifier
  • Generous output: 100W + 100W (8 ohm), 200W + 200W (4 ohm)
  • Fully-discrete two-stage design for signal purity, with separate power supplies for preamp and power amplifier sections to reduce interference
  • Toroidal transformer dedicated to preamp for clarity and precision sound
  • Dedicated headphone amplifier with alldiscrete construction featuring HDAM-SA2
  • Linear volume control with new electric volume system
  • Laser-engraved ‘Ken Ishiwata’ signature and Ruby motif, marking Ken Ishiwata’s 40 years with Marantz

The Premium Built
It’s all built on a vibration-resistant double layer chassis for rigidity, with 5mm thick aluminum top lid, solid aluminum front, copper plated chassis and massive insulators. It is equipped with high-quality nickel-plated input terminals and high-purity copper speaker connections.

The Circuitry
The PM-KI Ruby features a current feedback design with newly-developed wide-range circuitry and a toroidal transformer dedicated to preamp for clarity and powerful sound.

The HDAM® SA3 circuitry offers the cleanest signal path and optimal dynamics through the amplifier, which delivers 100W per channel into 8ohm speakers, or 200Wpc into 4ohm. The audio signal path is made entirely from discrete components for optimal quality, with the RIAA equalization split into passive and active components: RIAA correction is carried out by a Marantz HDAM, while the all-discrete amplification runs in minimum-distortion Class A.

The Phono Stage
This is designed to deliver optimal sound quality by simplifying the signal path, the Marantz Musical Premium Phono EQ stage in the PM-KI amplifier can be used with both moving magnet and low-output moving coil cartridges, thanks to a built-in MC head amplifier.

And the design is all about lowering distortion by using two-stage amplification, combining Marantz HDAMs with JFETs (junction gate field effect transistors) in the input stage, giving high input impedance. This allows the no-negative-feedback design to be further simplified by the deletion of coupling capacitors – all then shielded – again reducing distortion and enhancing signal purity.

Laser Engraved SignatureMarantz PM KI Ruby gold
Marantz has been designing and making amplifiers for more than 65 years, and for 40 of those the products have reflected expertise of Ken Ishiwata.

Now, to mark his four decades with the company, the PM-KI Ruby amplifier has been developed and tuned by a highly experienced engineering team led by KI himself. And it arrives bearing Ken Ishiwata’s signature and a special Ruby motif.

Additional information

Brands

Marantz

Colour

Black, Gold

CD Players

Marantz PM-KI Ruby and SA-KI...

Marantz PM-KI Ruby and SA-KI Ruby System
Integrated amplifiers

Marantz PM6006 Stereo...

Marantz PM6006 Stereo Amplifier

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