Excellent and rare set of Marantz Reference amplifiers. These ones are 240 Volt.
Excellent condition, except for slight marks on the front of one power amplifier as shown in photographs.
Shipping from New Zealand so please bear that in mind.
We began with the historic Model 9. We improved that distinctive voice with the MA-9S1. And now we present the MA-9S2 as the latest step in our relentless pursuit of sonic accuracy. It defines new horizons in both musical performance and contemporary elegance.
When you first see the MA-9S2, you'll be impressed with its clean yet purposeful look. The 35mm-thick aluminum chassis and double-layer bottom plate forms an extraordinary rigid structure. Copper coating isolated delicate internal circuitry from extraneous interference.
Power output is the same (300 watts into 8 ohms, 600 watts into 4) as that of the MA-9S1. This "double down" capability speaks directly to the MA-9S2's current delivery prowess and, consequently, its ability to absolutely control any loudspeaker. Although this "brute force" approach might be adequate for some, the S2 incorporates several advances designed to further improve sound quality.
First, consider the power supply. The toroid power transformer benefits from a newly-developed "dual hemisphere" design with acoustical isolation augmented by silicon steel and a damped aluminum case. This greatly reduces internal vibration and sets the stage for finer resolution of sonic nuances. Shottky barrier diodes provide rectification for the voltage amplification stage to eliminate subtle ripples that can negatively impact overall clarity. Finally, the storage capacitor bank so important for the current amplification stage is 50% larger than that used in the S1 for even more prodigious yet superbly controlled bass response.
In addition to fully balanced differential topology, the S2 uses current feedback implemented with six HDAM-SA modules for faster response and lower noise.
Flexibility is a key element in the MA-9S2's appeal, too. Three switchable inputs (two single ended, one balanced) complement the biwire-capable WBT speaker outputs. The high-precision power meter lets you keep tabs on the amplifier. Or you can switch it off completely for concentrated listening.
All in all, the S2 is a textbook example of meticulous engineering. As did the original, this contemporary masterpiece redefines the art of audio amplification.
The SC-7S2 thoroughly updates the distinctive voice of the original Marantz Model 7 preamplifier and further improves on the acclaimed SC-7S1. This work of art defines new horizons in both musical performance and contemporary elegance. It is an enduring testament to the synergy of today's technologies with frequency response and channel separation far exceeding conventional requirements.
The SC-7S2 achieves these goals with a fully balanced current-feedback topology and a power supply based on a aluminum-encased toroid power transformer, Shottky barrier rectifier diodes, and low-ESR electrolytic storage capacitors for optimal power conditioning and distribution. Each input is fully buffered with Marantz-developed discrete circuitry for accurate signal transfer. Four Wolfson WM8816 high-precision multi-gang volume controls and 12 Marantz-proprietary HDAM-SA modules form an incredibly precise attenuation circuit fully capable of 0.5 dB resolution throughout its entire 100 dB range. Although the SC-7S2 is devoutly two-channel, it acknowledges multi-channel music with a floating bus (our F.C.B.S.) that allows you to control multiple units simultaneously for exciting multi-channel reproduction of any source.
The copper-plated aluminum chassis provides exceptional dimensional stability while copper and steel sub-members offer isolation from radio frequency (RF) and electromagnetic interferences (EMI). Adjustable muting and trim let you tailor the SC-7S2 to your preferences. You can turn off the display to totally reduce potential distractions. And a Marantz system remote control lets you enjoy the SC-7S2's exceptional performance from your favorite listening/viewing location.