IDENTIFICATION REFERENCE FOR SA100

SERIES POWER AMPLIFIERS

NOTE: All serial numbers and dates quoted are approximate only. Dates quoted are time of manufacture. Exact date and serial number of Mk changeover cannot be guaranteed.

Mk1

April 1990 through September 1994

Serial numbers 5629 through 6753

BJT input transistors

Most are wired with Furakawa input and output cables

Some are wired with Kimber input and output cables

U shaped chassis design

Not up-gradable to Mk2

Identified as Mk1 by checking for a non-removable base and a lack of countersunk screws on rear panel

Mk2

January 1994 through April 1998

Serial numbers 6397 through 8299

JFET input transistors

Most are wired with original Siltec input and output cables H chassis design

Changed from 4 heatsinks per side to 5 midway through production life cycle Up-gradable to Mk3 (if long chassis with 5 heatsinks per side)

Single Transformer

Identified as Mk2 by checking for a single power transformer and six countersunk screws on rear panel

Mk3

April 1998 through October 2001

Serial numbers 8299 through 0836

Same circuit board set as Mk2

All wired in generation three (G3) Siltec input and output cables Ground lift switch fitted to Mk3 midway through production life cycle Two transformers (paralleled - not configured as dual mono)

Identified as Mk3 by checking for twin power transformers or Mk3 designation on rear panel

NOTE: The SA102 is a new product, and no SA100 can be upgraded to SA102 specification.

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Plinius Audio SA-100 manual Identification Reference for SA100 Series Power Amplifiers, Mk1, Mk2, Mk3

SA-100 specifications

The Plinius Audio SA-100 is a high-end power amplifier designed to deliver audiophile-grade performance, characterized by its robustness and exceptional sound quality. With its sophisticated engineering and high-quality components, the SA-100 stands out in the realm of high-fidelity audio reproduction.

One of the main features of the SA-100 is its elegant and rugged construction. The amplifier is housed in a beautifully designed chassis that not only enhances its aesthetic appeal but also minimizes interference from external vibrations and electromagnetic resonance. The use of high-grade aluminum is not just for looks; it ensures durability and effective heat dissipation, which is critical for maintaining performance during extended use.

The SA-100 employs Class A amplification, known for its ability to deliver a transparent and natural sound. This class of amplification means that the signal is always active, enabling the amplifier to provide a smooth and uninterrupted power delivery to the speakers. The Class A operation contributes to the amplifier's warm tonal characteristics, making it suitable for a wide range of musical genres.

In terms of power, the SA-100 can deliver an impressive output of 100 watts per channel into an 8-ohm load, more than sufficient for driving most audiophile-grade loudspeakers. The dynamic range and headroom that the amplifier offers allow it to handle peaks in music without distortion, delivering an immersive listening experience.

A proprietary feedback circuit is utilized in the design of the SA-100, which helps in stabilizing the output and reducing distortion. This technology ensures that the sound remains faithful to the source material, allowing listeners to appreciate the nuances of their favorite recordings. The amplifier also features dual mono design, which separates the left and right channels to minimize crosstalk and improve imaging.

The versatility of the SA-100 is enhanced by its input configuration, which includes balanced and unbalanced connections, accommodating various sources. This allows users to set up their audio systems according to their preferences without compromising on sound quality.

Moreover, the Plinius Audio SA-100 showcases exceptional thermal management capabilities through sophisticated internal design, ensuring that the amplifier performs optimally without overheating.

Overall, the SA-100 is a testament to Plinius' commitment to high-fidelity audio, combining elegance, power, and innovative technology to create an amplifier that not only meets but exceeds the expectations of discerning audiophiles. Its impressive features and characteristics make it a worthy addition to any high-end audio system.