Marantz PM-KI Ruby Owners Manual English - Page 4

ENGLISH Features High quality sound 0 HDAM®SA3 Module The HDAM® SA3 is a key amplifier module for current feedback amplifiers. It is installed in the voltage to current converter, the most crucial component, to improve the stability of the circuit and provide high-speed sound. 0 Linear Control Volume The HDAM®SA3 is combined with a JRC volume IC to achieve low distortion and high S/N. A range of volumes between 0 and -99.5 dB can be smoothly controlled in ±0.5 dB steps. 0 Hypex Switching Power Amplifier Module The power amplifier contains a Hypex NCore® switching power amplifier module. This switching amplifier module minimizes distortion from bass to treble and frequency characteristics are not changed by the impedance of the speakers, achieving extremely high performance. It can be used with a high-speed pre-amplifier circuit containing the HDAM® SA3 to faithfully and precisely convey the finely detailed information in DSD and high-resolution sound sources. 0 Marantz Musical Premium Phono EQ The new Marantz Musical Premium Phono EQ phono equalizer has been developed for MM/MC cartridges to produce rich sound that is more similar to analog. This circuit contains a new feedbackless equalizer amplifier and MC head amplifier developed by HDAM. J-FET input is used, enabling the input coupling condenser to be eliminated. This improves the purity of the signal path in the small signal section. 0 High Sound Quality Parts Employed High sound quality parts are used in every part of the circuit, including high sound quality MELF resistors and film capacitors. 0 Double-layered chassis 0 High-grade copper machined analog audio input connectors (CD/PHONO only) 0 High-grade Machined Copper Speaker Terminals High performance 0 F.C.B.S. A Floating Control Bus System (F.C.B.S.) enables the user to connect up to four PM-KI RUBY units, making a diversity of applications possible with complete bi-amp and multichannel connections. Moreover, a ground loop is not formed among multiple PM-KI RUBY units connected; therefore, sound quality is not adversely affected. 0 Bi-amp mode Complete bi-amp connection proposed by Marantz enables a level of reproduction of the acoustic field never before achieved. Synchronized operation of two PM-KI RUBY units is made possible by F.C.B.S. (Floating Control Bus System) connection, with each PM-KI RUBY in BiAmp mode working as a monaural integrated amplifier. 0 Power Amplifier Mode In this mode, this unit works as a power amplifier. 0 Tone Control Amplifier An electronic tone control amplifier is used to adjust the bass and treble volumes in 1 dB steps within a ±6 dB range. 3