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Enjoy a fully discrete two-stage design amplifier with separate power supplies for the pre-amplifier and power amplifier for signal purity and exceptional audio quality, everytime.
Audio purity reimagined
Key Benefits
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Built to perform
Constructed to the highest standards with a copper-plated chasses to reduce mechanical and electrical interference
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Masterfully tuned
Complete with thoughtful engineering, painstaking tuning and extensive listening sessions, PM-KI Ruby achieves the elevated output worthy of its name.
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Pure sound
Built to leverage enhancements, maintain the purest possible sound and supply the power needed to drive the most demanding speakers.
Balanced Power Amplification
Drawing on design elements of the PM-10, the PM-KI Ruby is built to leverage enhancements, maintain the purest possible sound and supply the power needed to drive the most demanding speakers.
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Current Feedback Amplifier
Current Feedback amplification is a well-known, Marantz-original circuit technology, thoughtfully designed to match the expectations of your Hi-Res music for wide-bandwidth and ensured high-speed reproduction.
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Marantz HDAM Technology
Marantz developed its own discrete circuit boards called Hyper-Dynamic Amplifier Module, or HDAM, to replace the chip-based amps used elsewhere. Using discrete surface mount components with short mirror-image left and right signal paths, the HDAM outperform the regular integrated Op-amps dramatically in Slew Rate and noise level.
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Marantz Musical Premium Phono EQ
Designed to deliver optimal sound quality by simplifying the signal path, the Marantz Musical Premium Phono EQ stage in the PM-KI-Ruby amplifier can be used with both moving magnet and low-output moving coil cartridges, thanks to a built-in phono amplifier.
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High Quality Volume Control
Newly developed electric volume control uses the latest volume control IC to realize better channel separation, dynamic range and distortion-reduction, while retaining the operational feel of an analog volume control device. The amplifier employs new Marantz-designed electric volume control for high linearity and best-in-class channel separation.
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Free Delivery*
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60-Day Returns*
All the details
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Technical Specifications
Features
Channels 2 Current Feedback Topology Yes Phono EQ: Marantz Musical Premium Phono EQ HDAM version SA3, SA2 Power Transformer: Toroidal / El Yes / No High Grade Audio Components Yes Customised Components Yes Symmetric PCB Layout Yes Aluminium extrusion heat sink Yes Balance / Bass / Treble / Loudness Yes / Yes / Yes / No Others
Linear Drive Power Supply Yes Liniear volume control Yes BI-AMP and Multichannel option No Shottky diodes Yes Input buffer amp No System block shielding: Copper / metal / none Yes / No / No Double Layer Bottom Plate Yes Low noise OLED display Yes Source Direct Yes Power Amp direct Yes Standby Mode Yes Inputs/Outputs
Audio Inputs 6 Phono Input: MM / MC Yes / Yes Marantz Musical Premium Phono EQ Yes Audio Outputs 2 Power Amp Direct IN Yes / No Cinch input [CD][PHONO]:Thick nickel plated independent terminals Others: Gold plated Speaker Terminal: Screw / Marantz / WBT No / Yes /SPKT-100+/ No Number of terminals 2 D-Bus Yes Floating Control Bus (3.5 mm mono jack x 2) Yes Headphone Out Yes Specifications
Power Output (8 / 4 Ohm RMS) 100 W / 200 W Frequency response 5 Hz-50 kHz Total Harmonic Distortion 0.01% Damping Factor 500 Input Sensitivity: MM 2.3 mV / 39 kOhm Input Sensitivity: MC 250 u V / 100 ohm Signal to Noise Ratio: MM/MC 88 / 75 dB Input Sensitivity: High level 220 mV / 13 kOhm Signal to Noise Ratio: High level 107 dB (2V input) Input Sensitivity: Power Amp Direct IN 1,1V / 13 kohm General
Available Colors: Gold / Silver / Black / Silver-Gold No / No / Yes / No Aluminum Front Panel Yes Power Consumption in W 130 W Standby Consumption in W 0,2 W Auto Power off Yes Detachable Power Cable Yes Remote Control RC005PMSA System Remote Function Yes Maximum Dimensions (W x D x H) in inches 17.32 x 17.83 x 5 Weight in lbs. 34.61
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Customer Reviews
PM-KI Ruby Support Materials
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Marantz. Born in New York
Marantz was founded in New York by the legendary acoustic expert Saul Marantz. Discover the history and heritage that lives to this day.
Incredible materials, incredible sound - a turntable crafted with rare care and distinction Incredible materials, incredible sound - a turntable crafted with rare care and distinction
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