MOON i 3.3 Integrated Amplifier

Optional Balanced Input

The balanced input option provides for one additional line-level input on an XLR connector. The “B1” input uses a fully balanced differential circuit and is intended for use with a source component that outputs a fully balanced differential signal. The MOON i 3.3 optional balanced input takes full advantage of the benefits of balanced circuitry:

When using an unbalanced interconnect, the audio signal runs through both the center wire and the shield/ground wire. Any noise picked up by this interconnect (ie. nearby magnetic fields such as an AC power cord) will be reproduced by both the preamplifier and amplifier, then heard through the loudspeakers. Conversely, a balanced interconnect has three separate conductors; one for the ground and two for the actual signal. These two signals are identical except that one is 180 degrees out of phase with the other. For example, when one conductor is carrying a signal of +10 Volts, the other will be carrying a signal of –10 Volts. When these two inverted signals on a balanced line are output from the MOON i 3.3, any noise picked up by the interconnect will be eliminated since a differential circuit amplifies only the difference between these two signals: Noise on a balanced interconnect will be equal on both conductors and therefore not be processed.

Rear Panel Connections

Figure 4: MOON i 3.3 Rear panel

The rear panel will look similar to Figure 4 (above). There are four (4) pairs of single-ended analog inputs on RCA connectors labeled CD, A1, A2 and A3/P. The left channel inputs are located on top and the corresponding right channel inputs are located directly below. In the event that your MOON i 3.3 is equipped with the aforementioned optional phono section, the input labeled ‘A3/P’ must be used to connect your turntable interconnect leads to this integrated amplifier. If you don’t have the optional phono section installed, then this input can be used in the same way as CD, A1 and A2 inputs.

The MOON i 3.3 integrated amplifier also has two pairs of non-amplified outputs labeled ‘FIX’ and ‘VAR’, located next to the A3/P input. The ‘FIX’ output is intended as an input to a recording device such as a cassette tape deck or CD-Recorder Player. Keep in mind that the output level is fixed and cannot be adjusted by the i 3.3’s volume control. The ‘VAR’ output is designated for output to a power amplifier with single-ended RCA inputs in the event that you wish to use your MOON i 3.3 as a preamplifier only. Keep in mind that the output level is variable and adjusted by the i 3.3’s volume control.

In the event that your MOON i 3.3 is equipped with the aforementioned the balanced input option, you will find one pair of XLR balanced inputs to the right of these non-amplified outputs. These are intended to be used with a source component that outputs a balanced signal.

____________________________________________________________________________________

Optional Balanced Input / Rear Panel Connections

11

Page 10 Page 12
Page 11
Image 11
Simaudio i 3.3 owner manual Optional Balanced Input, Rear Panel Connections
Page 10 Page 12

i 3.3 specifications

The Simaudio i 3.3 integrated amplifier exemplifies high-performance audio engineering, combining advanced technology with elegant design to cater to audiophiles' precise needs. One of its standout features is the high-quality analog and digital connectivity, allowing users to seamlessly integrate a variety of source components while maintaining superior sound quality.

At the heart of the i 3.3 lies a powerful amplification circuit, delivering 50 watts per channel into 8 ohms, and up to 100 watts per channel into 4 ohms. This capability ensures that the amplifier can drive a wide range of loudspeakers, from efficient stand-mount designs to more demanding floor-standing models. The amplifier employs a state-of-the-art Class A/B design, providing the listener with a compelling balance of power and fidelity, ensuring a warm, rich sound signature across different genres of music.

The Simaudio i 3.3 integrates advanced digital technologies, including high-resolution digital-to-analog conversion capabilities. With support for formats up to 24-bit/192 kHz, users can enjoy their favorite high-definition audio files with remarkable clarity and detail. The built-in USB input facilitates direct connection to computers and digital devices, enhancing versatility in playback options.

In terms of user-friendly functionality, the i 3.3 comes equipped with an intuitive front panel layout and a comprehensive remote control. The front panel features easy-to-navigate inputs and volume controls, allowing fast adjustments for an effortless listening experience. It offers multiple analog inputs, a phono stage for vinyl enthusiasts, and a range of digital inputs for modern audio components.

One of the unique characteristics of the i 3.3 is its rugged construction and stylish design. With a solid aluminum chassis, the amplifier not only looks aesthetically pleasing but also provides shielding against interference, ensuring a clean power supply to the audio components for pristine sound reproduction.

In conclusion, the Simaudio i 3.3 integrated amplifier addresses the needs of today’s audio connoisseurs, combining classic amplification techniques with modern connectivity options. Its robust build quality, excellent sonic performance, and versatility make it an exceptional choice for anyone serious about their listening experience. Whether for casual listening or critical evaluation, the i 3.3 is poised to deliver a captivating audio experience.
Top Page Image Contents