MOON P-7 Dual-Mono Preamplifier

Rear Panel Connections

Figure 2: Rear panel of MOON P-7 Preamplifier

The rear panel of the MOON P-7dual-mono preamplifier will look similar to Figure 2 (above). There are three rows of input and output connectors. On the top row is a full-function bi-directional RS-232 port control and status for custom integration or automation and uses a DB9 connector. Immediately to the right of the RS-232 port are two (2) “SimLink” connectors labeled “in” and “out” on 1/8” mini jacks. Please refer to the next section entitled SimLink for more details. As well, there’s a 1/8” mini-jack input for use with aftermarket infrared remote control receivers.

The middle row contains all single-ended inputs/outputs on RCA connectors. As a result of this preamplifier’s dual-mono design, the left channel inputs are located on the left side and the right channel inputs are locted on the right side. There are four pairs (4) of single-ended inputs (S1, S2, S3, S4) and two pairs (2) of single-ended outputs. One output pair, labeled V1, is a variable output and the other, labeled F, is a fixed output that bypasses the volume control. You should always connect your power amplifier to the V1 output, unless your power amplifier has its volume control that you intend on using instead of the P-7’s. This preamplifier is also equipped with a single-ended tape monitor loop loacted in the center of this row of connectors.

The bottom row contains all balanced inputs/outputs on XLR connectors. There are two pairs (2) of balanced inputs (B1, B2) and one pair of variable balanced outputs (V2). In the central area of this row are two 12 Volt trigger outputs, each on a 1/8” mini-jack as well as the “AC Fuse” socket cover; the power “main switch”; and the “AC Input” IEC receptacle for the included AC power cord. Alternatively, you may use a dedicated high-performance AC power cord designed for preamplifiers. Finally, there are three (3) connectors which are reserved for future use that are labeled “DC Output R”, “DC Output L” (both on 4-pin XLR conenctors) and “Comm” (on a 8-pin Ethercon connector).

Don’t hesitate to use high quality interconnect cables. Poor quality interconnect cables can degrade the overall sonic performance of your system.

All rear panel connectors have been chosen because they provide the best possible connections for your unit. A poor contact will degrade the signal substantially, and plugs and sockets should all look clean and free of dirt and corrosion. The easiest way to clean them is to remove the cables from their sockets and push them back in again. This procedure requires that your preamplifier and the rest of your components be completely turned off.4

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Rear Panel Connections

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Simaudio owner manual Rear Panel Connections, Rear panel of Moon P-7 Preamplifier
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P-7 specifications

The Simaudio P-7 is an impressive piece of audio equipment that stands out in the realm of high-end preamplifiers. It is celebrated for its meticulous engineering, exceptional sound quality, and extensive capabilities. Designed and manufactured in Canada, the P-7 incorporates Simaudio's commitment to innovation and aesthetic appeal, providing audiophiles with an unparalleled listening experience.

One of the prominent features of the P-7 is its meticulous build quality. It features a robust chassis that not only enhances durability but also minimizes resonance, which could otherwise interfere with sound clarity. Simaudio implemented a dual-mono design in the P-7, ensuring that left and right channels operate independently to produce a perfectly balanced signal. This architectural choice contributes significantly to the unit's outstanding imaging and soundstage.

The P-7 includes a sophisticated circuit design that employs high-quality components throughout. For instance, it utilizes custom-made capacitors and precision resistors to ensure optimal signal integrity. The preamplifier's discrete transistor amplifiers are designed to deliver an incredibly low noise floor, which translates to a purer sound free from unwanted interference.

Another defining characteristic of the P-7 is its versatile connectivity options. It is equipped with multiple inputs, supporting both balanced XLR and unbalanced RCA connections. The ability to switch between formats ensures compatibility with a wide array of audio sources, including digital and analog components. Furthermore, the P-7 includes a comprehensive set of outputs, allowing connections to various power amplifiers and recording devices.

The P-7 also features an intelligent control interface, which includes a user-friendly remote. This allows for effortless adjustments to volume levels, input selection, and other features from a distance, enhancing the overall listening experience. Additionally, it is designed to integrate seamlessly with other components within Simaudio's Moon series, maintaining an aesthetic congruence while optimizing performance.

In terms of performance, the Simaudio P-7 is praised for its transparent sound reproduction and tonal accuracy across a broad frequency spectrum. It is particularly renowned for retaining the nuances and dynamics in recordings, producing an immersive audio experience that captivates listeners. The unit's exceptional resolution and detail retrieval make it a favorite among audiophiles looking for fidelity that does not compromise on emotional engagement.

Overall, the Simaudio P-7 preamplifier combines innovative technology with exquisite craftsmanship, delivering a compelling solution for those seeking high-performance audio. Its robust feature set, outstanding sound quality, and user-friendly design make it a prominent choice for anyone serious about their audio experience.
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