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Direct Appliance of Modesto
Yamaha Integrated Amplifier with non-magnetic aluminum plate and balanced transmission
|Power On Consumption (watts)||420|
|Signal to Noise Ratio||93 dB|
|Product Weight (lbs.)||54.2|
An independent three-dimensional inner frame has been employed in order to provide a more solid mount for the large toroidal transformer, which is installed in the center of the A-S3000, considering the ideal weight balance. The completely copper-plated inner frame has a structure which integrates the front-back and left-right frames with a convex-shaped highly rigid main frame as its base, reducing vibration coming from all directions. For the base, to which the power transformer is installed on the inner frame, brass was selected by strictest examining the particular sonic properties of various materials by exhaustive listening tests. This material effectively reduces vibration caused by the power transformer, helping to create sound of greater clarity and spaciousness.
The top panel and the front panel are made of aluminum, a non-magnetic material, in order to eliminate any adverse effect on the audio signals. In the course of strictest examination of the sound quality, the front panel thickness was set at 0.28” and the top panel was set at 0.24” . This helps to realize an exceptionally natural, spacious sound by providing a highly rigid chassis structure and at the same time, skillfully controlling the impact of vibration. Moreover, heat dissipation openings on the top panel were formed by high precision cutting from both sides—front and back—of the panel and finished with thorough scrupulous attention to every detail. Stylish slits in the center, matching the companion CD-S3000 and its design, strongly emphasize the powerful power source unit inside by having the same width as the power transformer.
The insulators are crucial parts that block outside vibrations. They adopt Yamaha’ s original metal legs in order to maximize vibration control performance. The user can select point installation by applying the supplied spikes or plane insulation with the supplied pads and use these combined with an interlocking rack if desired.
The amplifier circuit design features independent preamplifier and power amplifier blocks and perfect left-right symmetry. Separation of the preamplifier, which handles low energy signals, from the power amplifier, which handles high-energy amplified signals, greatly reduces sound deterioration caused by mutual interference. Moreover, the left-right symmetrical design, which keeps the left and right power stages completely separate, ensures greater channel separation and enhances clarity of the stereo image.
The A-S3000 features fully balanced signal transmission. Moreover, the control system circuits (volume, tone, etc.) of the preamplifier feature totally balanced operation, realizing ideal balance in all stages.
|Power On Consumption (watts):||420|
|Signal to Noise Ratio:||93 dB|
|Product Weight (lbs.)||54.2|