Marantz PM8003 PM8003 User Manual - English - Page 5

Names aNd FuNctioNs Basic coNNectioNs Basic operatioN adVaNced coNNectioNs ENGLISH Features all-discrete curreNt-FeedBacK ampliFier Marantz' proprietary current-feedback circuit, using discrete components, is adopted in the pre amplifier and power amplifier. It is a high-speed amplifier using the latest technology developed for the higher-grade amplifiers. hdam-sa3 techNologY The V/I converter circuit, which is the key block of the current-feedback pre-amplifier and power amplifier, is equivalent to the HDAM-SA3 ampmodule developed for such higher-grade models as the SC-11S1. cd direct BuFFer ampliFier An input buffer amplifier exclusive for CD is mounted near the CD input jacks. This is a high-speed buffer amplifier made with discrete components, which avoids interference between right and left channels and can send the signals to the pre-amplifier with very high fidelity. improVed momeNtarY curreNt supplY aBilitY It is generally known that the sound quality is not necessarily the same even if amplifiers have the same specifications. Marantz considers the cause to be the power to drive speakers. The power amplifier of this unit has the ability to momentarily supply current of 25 A or more to drive speakers strongly. short-poWer-liNe laYout For strong momentary current supply, a short power-line layout unifies the power circuit and output stage of the power amplifier section. This layout allows connecting the large-current lines via the shortest route while to arranging the left and right channels symmetrically. all-discrete curreNt-FeedBacK phoNo eQualiZer As a phono equalizer amplifier for MM cartridges, a constant current-feedback PHONO equalizer of quality equal to that of the higher-grade model SC11S1 is used. douBle-shielded toroidal traNsFormer The unit is equipped with a toroidal power transformer to minimize vibration and leakage flux specific to the transformer. Especially to reduce leakage flux, which affects sound quality, the periphery is double-shielded, using a core ring and a short ring. BlocK coNdeNser oF large capacitY A large-capacity condenser of 18,000ЖF is used in the power circuit of the power amplifier. In the preamplifier, a 4,700ЖF condenser is used. high-perFormaNce Volume capacitor For high QualitY souNd douBle-laYered chassis high-grade speaKer termiNals BeFore use This section must be read before any connection is made to the mains supply. eQuipmeNt maiNs WorKiNg settiNg Your Marantz product has been prepared to comply with the household power and safety requirements that exist in your area. PM8003 can be powered by 120V AC only. copYright Recording and playback of any material may require consent. For further information refer to the following: - Copyright Act 1956 - Dramatic and Musical Performers Act 1958 - Performers Protection Acts 1963 and 1972 -Any subsequent statutory enactments and orders do Not locate iN the FolloWiNg places To ensure long-lasting use, do not locate the unit where: • Exposed to direct sunlight. • Near to sources of heat such as heaters. • Highly humid or poorly ventilated. • Dusty. • Subjected to mechanical vibrations. • On wobbly, inclined or otherwise unstable surfaces. • Radiated heat is blocked such as in cramped audio racks. To ensure proper heat radiation, ensure the below clearance from walls and other equipment. Left 8 inchs (0.2 m) or more Above 8 inchs (0.2 m) or more Right 8 inchs (0.2 m) or more Rear 8 inchs (0.2 m) or more Keep oBJects oFF Keep objects off the unit. Blocking the vent can result in accident and damage. do Not touch hot spots duriNg aNd immediatelY aFter use During and immediately after use, the unit is hot in areas other than the controls and rear panel connection jacks. Do not touch hot spots and especially the top panel. Contact with hot areas can cause burns. remote coNtroller operatioN trouBleshootiNg others 2