Plinius Audio SA-103 manual Input Terminals, Amplifier Configuration Selector ACS

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INPUT TERMINALS

Input terminals for your Plinius SA-103 Power Amplifier are easily accessible and fitted to the top centre area of the rear panel. A brief summary of connection possibilities is listed below, while a more detailed explanation follows later in this instruction manual.

RCA INPUTS LEFT & RIGHT: These standard RCA terminals are for use with unbalanced signals from most signal sources such as audio preamplifiers.

XLR BALANCED INPUTS LEFT & RIGHT: XLR connectors fitted to this amplifier are for use with balanced line signals from audio preamplifiers. Balanced signals are carried via a three way cable that connects all three pins at each end of the interconnect cable.

The XLR pin configuration used in all Plinius product is:

PIN 1 to GND

PIN 2 to +Signal

PIN 3 to -Signal

NOTE: Because of the way our XLR and balanced inputs are configured it is not possible to connect both XLR and RCA at the same time.

AMPLIFIER CONFIGURATION SELECTOR (ACS)

The Amplifier Configuration Selector (ACS) is a unique switching method that exploits all of the operational features of your Plinius SA-103 Power Amplifier. By using this switch it is possible to operate your amplifier with either balanced or unbalanced signals and achieve a stereo or mono output.

Stereo or Mono use of this amplifier will depend on the type of ancillary equipment employed with your system. If you wish to use this amplifier as a single channel (mono) Power Amplifier in a stereo high fidelity system, then another SA-103 will be required for the other channel. This will provide an extremely high performance option.

RCA STEREO

RCA BRIDGED MONO

XLR BALANCED MONO XLR STEREO

ALL MONO/BRIDGE OPTIONS USE RIGHT INPUT

AND LEFT + RIGHT+ OUTPUTS ONLY

AMPLIFIER CONFIGURATION SELECTOR

REFER TO OWNERS MANUAL FOR USAGE INSTRUCTIONS

AMPLIFIER CONFIGURATION SELECTOR

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Contents Page Serial Number Final Test Certified By Design Philosophy Contents Precautions Amplifier Features Front Panel Mute SwitchClass a Switch Page Amplifier Features Rear Panel Input Terminals Amplifier Configuration Selector ACSOutput Terminals Stereo BALANCED/UNBALANCED SignalsGround Lift Switch Mains SwitchMains Power Cord IEC Connector Output Terminals BRIDGED/MONOInstallation and Operation Placement and VentilationMains Voltage Connection Rear Panel Showing Location of INPUT/OUTPUT Terminals INPUT/OUTPUT ConnectionRCA Stereo RCA Bridged MonoXLR Stereo BI-WIRING XLR Balanced MonoTermination Quality Phasing or Polarity Connecting the Mains SupplyError Detection Fuse ProtectionEcologic Control MAINS/LINE Fuse LED Brightness ControlLoudspeaker Selection WHY Class a is Better Specifications Pages 7,20 IndexContact Details

SA-103 specifications

Plinius Audio SA-103 is an exceptional power amplifier designed for audiophiles seeking high-quality sound reproduction combined with robust performance. Renowned for its distinctive warm tone and ability to drive a wide range of speakers, the SA-103 stands out in the realm of high-fidelity audio equipment.

One of the primary features of the SA-103 is its impressive power output. Delivering 100 watts per channel into an 8-ohm load, and doubling that output into 4 ohms, this amplifier can effortlessly drive many speaker types, making it versatile enough for both dynamic home theater setups and demanding stereo listening environments. The amplifier’s dual mono design ensures that each channel operates independently, reducing crosstalk and providing a cleaner soundstage with greater separation between the left and right channels.

The SA-103 utilizes Plinius' unique “Class A biased” architecture, which enhances sound quality by delivering a warm, natural tone. This design minimizes distortion and provides high linearity throughout the amplifier's operating range. The added flexibility of a switchable gain setting allows users to adjust the output to suit their specific system requirements and room acoustics, ensuring optimal performance in various environments.

Another standout characteristic of the SA-103 is its robust construction. Built with high-grade components, including a heavy-duty transformer and custom-designed capacitors, the amplifier boasts durability and longevity. The premium build quality is not just for looks; it also contributes to reducing resonance and vibration, further enhancing audio clarity.

The input stage of the SA-103 features sophisticated circuitry that provides an incredibly low noise floor. This is particularly beneficial for critical listening sessions where high sensitivity is essential. Additionally, the amplifier is equipped with high-quality binding posts and XLR inputs, allowing for secure connections and compatibility with various audio sources.

Heat management is addressed efficiently in the SA-103, utilizing large heatsinks and a cooling architecture that ensures the unit operates smoothly even during extended use. Overall, Plinius Audio SA-103 represents not only an investment in high-performance audio gear but a commitment to delivering a pristine listening experience, characterized by depth, balance, and expressive detail. For anyone serious about audio quality, the SA-103 remains a compelling choice in the power amplifier landscape.