Software Setup

MOON P-7 Dual-Mono Preamplifier

Front Panel Controls (continued)

The rotary “volume” control determines the gain setting, which ranges from ‘0.0dB’ (no output) to ’80.0dB’ (full output). This control does not function like a typical volume: When you rotate the dial, either clockwise to raise the volume or counter- clockwise to lower the volume, you are actually engaging a precision optical encoder which selects, via a relay network, very high quality metal-film resistors that the audio signal passes through. The result is a proprietary gain circuit, called M-eVOL, that doesn’t degrade the audio signal regardless of the setting, unlike all potentiometer based circuits. Since this circuitry operates in a fully balanced differential mode, no noise is introduced to the audio signal. Futhermore, since there are no actual moving parts, this technology has a minimum life expectancy of one million rotations.

The MOON P-7preamplifier provides a range of one-hundred and thirty (130) unique volume settings. This is achieved as follows: Within the 0.0dB to 30.0dB range, you can increase and decrease the volume in 1.0dB steps. From the 30.0dB to 80.0dB range, you can increase and decrease the volume by either 0.5dB or 1.0dB steps; By rotating the volume control slowly, the level will change by 0.5dB increments. A quicker rotation will change the volume in 1.0dB increments.

Note: To change the balance between the left and right channels, please refer to the section “Remote Control Operation”.

The “Input +” and “Input -” buttons allow you to choose which input source you wish to listen to. The MOON P-7dual-mono preamplifier has a total of seven (6) inputs; The first three (2) inputs are fully-balanced and use XLR connectors labeled B1 and B2. The next four (4) inputs are single-ended and use RCA connectors labeled S1, S2, S3 and S4. Assuming that you’re currently listening to a source component connected to input B1, the “+” allows to sequentially scroll forward through the available inputs from B2 to S4. The “-” button allows you to sequentially scroll backwards from S4 to B2. Holding down either the “+” or “-“ button will allow only a single change of the selected input. You must press the button again to select the next or previous input.

The “Setup” and “OK” buttons are used for programming the numerous software functions available on this preamplifier. The next section, entitled “Software Setup”, explains their usage in detail.

The MOON P-7preamplifier includes powerful software that allows you to configure it to meet your specific needs. For each of the seven (7) inputs, you can assign a label to replace the factory assigned name (i.e. B1, S1, etc.), assign a maximum volume level of less than 80.0dB, create an offset volume level ranging from –10.0dB to +10.0dB, bypass the volume control (to exclusively use the source component’s volume instead) and disable the input completely when it’s not in use. As well, you can assign any and all inputs to activate each of the P-7’s two 12 Volt triggers. Finally, there’s a facility to reset all software settings back to their factory defaults. Please refer to the accompanying quick reference diagram for a snapshot of the entire Setup menu layout.

When you are in Setup mode, there are three (3) front panel items used to program this preamplifier; The “Setup” button for navigating up and down through the various menu levels, the rotary volume control for scrolling through the available choices within each programmable item, and the “OK” button for confirming and saving your selections.

What follows are step-by-step examples of how to configure an input, assign the two 12 Volt triggers and reset the software back to the factory default.

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Front Panel Controls / Software Setup

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.