MOON W-8 Dual-Mono Power Amplifier

Rear Panel Layout

Figure 1: Rear panel of Moon W-8 Dual-Mono Amplifier

The rear panel will look similar to Figure 1 (above). Each channel has one balanced (differential) input on an XLR connector and one unbalanced (single-ended) input on a RCA connector. There is no switch to toggle from balanced mode to single- ended mode. You may operate the amplifier in either mode, but only one mode at one time for each channel. In the event that you’re using the balanced XLR inputs, you must first remove the factory installed “dummy” XLR jumpers (see figure 2 below) from the back panel XLR connectors and store them in a safe place. These jumpers are required ONLY when using the single-ended RCA inputs. In the event that you decide to switch to single-ended input mode, you must reinstall the XLR jumpers (between pins 1 and 3) exactly as show below:

Figure 2: XLR connector without and with jumper accessory

There are two pairs of heavy duty gold-plated speaker binding posts for each channel to accommodate bi-wiring. They are each labelled “Speaker Output 1” and “Speaker Output 2”.

The upper mid-section has an RS-232 input on a DB9 connector. To the right of this connector are two 12 Volt triggers, each on a 1/8” mini-jack; one input and one output, the latter for use in the event that wish you to “daisy chain” a second power amplifier on the same trigger circuit. The lower mid-section has from left to right; the “AC Fuse” socket cover; the power “main switch”; and the “AC Input” IEC receptacle for the power cord.

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Rear Panel

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Simaudio owner manual Rear Panel Layout, Rear panel of Moon W-8 Dual-Mono Amplifier

W-8 specifications

The Simaudio W-8 is a high-end power amplifier that exemplifies exceptional audio performance and craftsmanship, catering to audiophiles seeking uncompromised sound quality. As a part of Simaudio's Moon series, the W-8 is engineered to deliver power and precision, making it an ideal choice for serious music enthusiasts.

One of the hallmark features of the W-8 is its impressive power output. With an ability to deliver 250 watts per channel into an 8-ohm load, and 500 watts into 4 ohms, the W-8 provides ample headroom to drive even the most demanding speaker systems. This power is coupled with a very low distortion level, ensuring that the integrity of the audio signal is maintained regardless of volume levels.

The W-8 incorporates Simaudio’s proprietary technologies to enhance performance. One such technology is the use of fully balanced, differential circuitry, which significantly reduces noise and distortion, delivering a crystal-clear sound. Additionally, the W-8 employs a class A/AB amplification design that combines the efficiency of class AB operation with the finesse of class A. This hybrid approach allows for linear performance across the audio spectrum while preserving dynamic range.

Another notable characteristic of the Simaudio W-8 is its robust build quality. Housed in a sleek aluminum chassis, the amplifier features an elaborate thermal management system that ensures optimal performance during extended listening sessions. With a dual mono design and separate power supplies for each channel, the W-8 minimizes crosstalk and enhances stereo imaging.

In terms of connectivity, the amplifier provides extensive options, including XLR and RCA inputs, as well as speaker binding posts that accommodate a variety of cables. This versatility ensures that the W-8 can seamlessly integrate into various audio setups, allowing for greater flexibility and customization.

Moreover, Simaudio places a strong emphasis on user experience, which is evident in the W-8's intuitive layout and operational simplicity. Its understated aesthetic ensures it fits well into any audio system while also standing out as a statement piece.

In conclusion, the Simaudio W-8 is an amplifier that excels in performance, design, and technology. Its powerful output, advanced circuitry, and premium build quality make it a standout choice for audiophiles who desire an amplifier that can deliver a truly immersive listening experience. Whether for music production or refined listening, the W-8 stands as a testament to Simaudio's commitment to high-fidelity audio.