Integrated Amplifier

Optimized Design
To achieve such quality, while still delivering class-leading power, means optimizing each section of the amplifier for its task, just as would be done in a design using a separate preamplifier and monobloc power amps. Commonly, amplifiers use a single transformer, with separate power supply regulation for the preamplifier and power amplifier sections; the PM-10 takes things much further.

Pure Analog
Another important part of the noise-reduction here is the fact that the PM-10 is a purely analog amplifier: many rival designs are today including digital-to-analog conversion, or adopting digital amplification and volume control, but Marantz keeps things as clean and simple as possible with its highly-developed all-analog design. Why? Well, though it may seem convenient to have a DAC in the amplifier, digital circuitry is, by its very nature, noisy (in the electrical sense) and can interfere with the delicate analog signals passing through the amp. That's why Marantz chooses to design its Premium Series range with any digital-to-analog conversion in its Super Audio CD or network music players, keeping its amplifiers as pure and clean as possible.

Fully Balanced, From Input to Final Power Section
The benefits of balanced audio layout have long been understood: unlike a conventional layout, one half of the signal path is in the ground plane of either an amplifier or a cable, balanced working uses two conductors or paths - one for positive, the other for negative - and an entirely separate ground to protect them. The benefit in cables is that any external interference will affect both positive and negative conductors, but since the signals they are carrying are the mirror image of each other, they will mutually cancel out any effect - which is why such cables are widely used in pro audio and studio applications, where sources of hum are common, and the longer cable runs involved makes them particularly prone to picking up interference.

Balanced, Bridged Power Amplification
For the PM-10, Marantz wanted the purest possible sound, plus the power and dynamics to drive and control some of the world's most demanding speakers. To achieve this, they continued the balanced working found in the preamp stage right the way through to the power amplifier stage to its speaker outputs, and also adopted bridged working to develop the power required while maintaining that balanced design. This True Balanced Concept realizes a ground-free signal management from the input to the output.

Carefully Selected Components
Marantz has long built a reputation for choosing the best-possible components for its Premium Series products - and if it can’t find what it wants, it designs and builds the required part. That thinking informed the design of the Hyper Dynamic Amplifier Module (or HDAM): unhappy with the audio quality available from 'amplifier on a chip' IC components, the company designed its own alternative, in the form of a miniature amplifier module built entirely of discrete components. As with all such design decisions, the engineers selected and optimised the HDAM through extensive listening in dedicated Marantz facilities in Europe and Japan, and since it was introduced this component has both been developed and also found its way into an ever-wider range of products.

Specifications: 
-Channels 2
-Current Feedback Topology
-Full balanced circuitry architecture
-Dual Mono Power Amp construction
-Phono EQ Constant Current Feedback
-HDAM version SA3, SA2
-Power Transformer Toroidal and 2 x SMPS
-High Grade Audio Components
-Customized Components
-Symmetric PCB Layout
-Aluminum extrusion heat sink  (Separate)
-Copper plated chassis