The pin assignments of these XLR input connectors are:

Pin 1: Signal ground

Pin 2: Signal + (non-inverting)

Pin 3: Signal – (inverting)

Connector ground lug: chassis ground

These pin assignments are consistent with the standard adopted by the Audio Engineering Society (AES14-1992).

If you are using your Classé power amplifier with a Classé preamplifier, you’re all set – just take standard balanced interconnect cables and plug them in.Then engage that input on the power amplifier by configuring it as described in Initial Setup.

If you are using another brand of preamplifier, please refer to the operating manual of your balanced-output preamplifier to verify that the pin assignments of its output connectors correspond to your amplifier. If not, have your dealer wire the cables so that the appropriate output pin connects to the equivalent input pin.

2Single-Ended (RCA) Input

Single-ended cables using RCA connectors are the most common form of analog connection used in consumer electronics. When implemented carefully and with use of high quality interconnecting cables, this standard can provide excellent performance. Classé has gone to extraordinary effort to ensure that the single-ended (RCA) inputs of your power amplifier are as good as possible. However, this connection standard cannot offer the immunity from interference that balanced interconnection does—hence our recommendation to use the balanced inputs when possible.

If you elect to use the single-ended inputs of your Classé power amplifier, you need to engage them by configuring the amplifier as described in Initial Setup.

3Speaker Outputs

A pair of high quality five-way binding posts is provided for each channel of the amplifier.

Although the binding posts on your Classé amplifier will accept bare wire connections, we strongly recommend the use of high quality spade or hook lugs, crimped and soldered onto the ends of your speaker wires. Using high quality connectors will ensure that your speaker connections do not gradually deteriorate from fraying and oxidizing bare wires. It also helps prevent accidental short-circuits from poorly-terminated connections.

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Classe Audio CA-5100 owner manual Single-Ended RCA Input, Speaker Outputs
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CA-5100 specifications

The Classe Audio CA-5100 is a high-performance power amplifier designed to deliver exceptional sound quality and reliability for audiophiles and music enthusiasts. Renowned for its robust build and superior audio performance, the CA-5100 is part of Classe's tenured lineage of premium audio equipment, making it a standout choice for both hi-fi home systems and professional audio setups.

One of the main features of the CA-5100 is its power output. With a total output of 100 watts per channel into 8 ohms, this amplifier can drive a wide range of speakers, making it versatile for various audio environments. When operating at 4 ohms, the power output rises to an impressive 200 watts per channel, ensuring that it can handle demanding speaker loads without compromising sound quality.

The CA-5100 employs Class A/B amplification design, which is known for its balance between sound fidelity and efficiency. This technology allows for low distortion and high power efficiency, resulting in a warm and natural sound that audiophiles crave. The dual-mono architecture of the amplifier ensures that each channel operates independently, providing excellent channel separation and reducing crosstalk for a more immersive listening experience.

One of the notable characteristics of the Classe Audio CA-5100 is its premium construction. It features a heavy-duty chassis that minimizes vibrations and interferences, allowing for cleaner signal transmission. Additionally, high-quality components, such as oversized transformers and large filter capacitors, contribute to its high current delivery capability, ensuring robust performance even at high volumes.

The amplifier is equipped with proprietary technologies, including advanced thermal management systems, which dissipate heat effectively to maintain optimal performance and longevity. The CA-5100 also includes various input options to accommodate different audio sources, such as balanced XLR and unbalanced RCA inputs, ensuring compatibility with a wide range of audio devices.

In conclusion, the Classe Audio CA-5100 embodies high-end audio engineering principles, offering exceptional sound reproduction, robust power handling, and a build quality that reflects Classe's commitment to excellence. Whether used in a dedicated listening room or as part of a professional audio system, the CA-5100 stands as a testament to what high-performance amplifiers can achieve, delivering an unforgettable auditory experience for any listener.
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