Yamaha A-S3200
Yamaha stereo integrated amplifier with fully balanced circuitry, designed for precise musical reproduction and an open soundstage.
Description
The A-S3200 is a stereo integrated amplifier from Yamaha, designed to reproduce music with precision and naturalness. It is aimed at hi-fi systems where the amplifier forms the electronic heart of the installation, between sources and speakers.
The circuit is fully balanced, an architecture that improves the signal-to-noise ratio and the separation of the left and right channels. In listening terms, this translates into a more precise soundstage, where instruments and voices stand out more clearly from one another. The unit houses a large toroidal transformer, whose copper cable is drawn directly from the wound core in order to limit power loss when feeding the amplifier stages. The internal speaker wire, of PC Triple C type, benefits from a more linear structure intended to promote smoother signal transmission.
On the power supply side, the A-S3200 incorporates four large capacitors of 22,000 μF each, paired with oxygen-free copper terminals and brass screws to improve the connection between components. This available reserve of energy contributes to a soundstage described as expansive and open, with a low-impedance concept intended to limit energy losses while preserving the integrity of the audio signal.
This type of amplifier is aimed at a demanding listener with quality speakers who wants to get the best out of a classic stereo hi-fi system, without a separate power amplifier stage. Its design, oriented towards faithful reproduction, makes it a relevant choice for attentive listening in a two-channel configuration.
What to check before buying used
On this type of high-end integrated amplifier, test the volume and balance potentiometers, as well as the input selector: crackling or a cut-out on one channel indicates an oxidised contact. The large power supply capacitors should also be checked, as they lose capacitance with age, which can weaken the energy reserve and dynamic performance. Finally, a check of the protection relays and the solder joints around the toroidal transformer is recommended, as these are the points most heavily stressed over time.
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