Plinius Audio SA-103 manual RCA Stereo, RCA Bridged Mono, XLR Stereo

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RCA STEREO

Connect your preamplifier or input signal to the two RCA inputs at the top of the amplifier back panel. Make sure you connect the red coded cable to the red RIGHT RCA input and the black (or white) cable to the black LEFT RCA input. Also make sure the RCA connectors are a snug fit and are inserted all the way in.

Next connect your loudspeaker wires to the output posts on either side of the rear panel. Connect your right loudspeaker (ie the one on the right of you when seated in your normal listening position) to the right output terminals, ensuring that the red positive (+) terminal is connected to the red terminal on your loudspeaker. Do the same with the black or negative (-) terminals.

Now turn the ACS switch fully clockwise so that it is in the RCA Stereo position. It is now safe to switch on your amplifier.

RCA BRIDGED MONO

This option configures your amplifier to drive one loudspeaker from one unbalanced signal fed to the red RIGHT RCA input. In bridged mono mode the only input made to your preamplifier is to the red RIGHT channel RCA input. The black LEFT channel RCA input is not connected.

Next your loudspeakers are connected to both positive (+) channel output terminals. So the positive red connection on your loudspeaker is connected to the red RIGHT amplifier output, and the negative black connection on the loudspeaker should be connected to the red LEFT amplifier output. DO NOT CONNECT ANYTHING AT ALL TO THE NEGATIVE (-) TERMINALS. MAKING A CONNECTION TO THE NEGATIVE (-) TERMINALS OF THE AMPLIFIER IN THIS MODE CAN CAUSE SERIOUS DAMAGE!

You can still connect two loudspeakers using the lower positive (+) amplifier output terminals. This is explained in the bi-wiring section following.

Now turn the ACS switch fully clockwise then one position counter-clockwise so that it is in the RCA Bridged Mono position. It is now safe to switch on your amplifier.

XLR STEREO

Connect your preamplifier or input signal to the two XLR inputs at the top of the amplifier back panel. Make sure you connect the RIGHT XLR input and LEFT XLR inputs to the right and left outputs from your preamplifier respectively. Also make sure the XLR connectors click into place.

Next connect your loudspeaker wires to the output posts on either side of the rear panel. Connect your right loudspeaker (ie the one on the right of you when seated in your normal listening position) to the right output terminals, ensuring that the red positive (+) terminal is connected to the red terminal on your loudspeaker. Do the same with the black or negative (-) terminals.

Now turn the ACS switch fully clockwise then two positions counter-clockwise so that it is in the XLR Stereo position. It is now safe to switch on your amplifier.

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Contents Page Serial Number Final Test Certified By Design Philosophy Contents Precautions Class a Switch Amplifier Features Front PanelMute Switch Page Amplifier Features Rear Panel Amplifier Configuration Selector ACS Input TerminalsBALANCED/UNBALANCED Signals Output Terminals StereoMains Power Cord IEC Connector Mains SwitchGround Lift Switch Output Terminals BRIDGED/MONOMains Voltage Connection Installation and OperationPlacement and Ventilation INPUT/OUTPUT Connection Rear Panel Showing Location of INPUT/OUTPUT TerminalsXLR Stereo RCA StereoRCA Bridged Mono Termination Quality BI-WIRINGXLR Balanced Mono Connecting the Mains Supply Phasing or PolarityEcologic Control Error DetectionFuse Protection LED Brightness Control MAINS/LINE FuseLoudspeaker Selection WHY Class a is Better Specifications Index Pages 7,20Contact 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.