The MOON 860A Power Amplifier is a balanced differential dual-mono design that effortlessly outputs 200 watts into 8Ω and 400 watts into 4Ω. Transparency and soundstage are exceptional, despite this amplifier's high power rating. Ultimately, the 860A will mate seamlessly with any loudspeaker allowing it to reach its full sonic potential, regardless of its load.
Several in-house developed advancements allow the MOON 860A to perform with both exceptional accuracy and a grain-free character; These
include (i) MOON output transistors, specifically designed for use in our amplifiers, providing tighter and more visceral bass performance, as well as
unprecedented linearity thoughout the entire frequency spectrum; and (ii) our advanced "zero global feedback" circuit, commonly referred to as Lynx.
Of course, key features you'd expect in a MOON Evolution Series product are present such as an RS-232 port and 12 Volt triggers for custom-install environments.
Finally, a plethora of user selectable cosmetic options are available at the time of purchase.
The MOON 860A replaces the MOON W-7
860A Photo Gallery
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| Inside view of the 860A |
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| Rear view of the 860A |
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| Wire-Frame view of the 860A |
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860A Technical Features · Lynx circuitry which is a "no overall feedback" design resulting in genuine real-time amplification, a more accurate musical reproduction with respect to tonality, virtually non-existent IMD and the elimination of common phase errors resulting from feedback · Custom proprietary toroidal transformer design with lower magnetic, electrical and thermal loss, yielding an improved power transfer and lower regulation factor. The result is increased current speed and better dynamics · A dual-mono oversized power supply · Precision matched and fully decoupled proprietary MOON Bipolar output transistors with unprecedented gain linearity resulting in improved bass response and even more accurate sonic reproduction · A high damping factor for superior musical dynamics, improved signal speed and refined timbre accuracy · A very short capacitor-free signal path for a faster transient response · Stable to any known speaker impedance · "Class A" output to 5 watts for greater efficiency · RS-232 port for (i) full unsolicited bidirectional feedback and (ii) firmware updates · 12 Volt trigger input/output for remote operation · 4-Layer printed circuit boards with pure copper tracings for a much shorter signal path; This results in greater sonic accuracy and a dramatically improved signal-to-noise ratio · Designed to be powered up at all times for optimal performance · Low operating temperature for a longer than normal life expectancy · Ultra rigid chassis construction to minimize the effects of external vibrations · Accurate matching of the very finest quality electronic components in a symmetrical circuit design. |
| 860A Detailed Specifications | |
| Type | Solid State |
| Configuration | Dual-Mono / Balanced |
| Power Supply Transformers | 2 x 0.5kVA |
| Power Supply Capacitance | 121,200µF |
| Class Of Operation | A/AB |
| Balanced Inputs | XLR - 1 pair |
| Single-ended Inputs | RCA - 1 pair |
| Input Device Type | J-FETs |
| Input Impedance | 47.5KΩ |
| Input Sensitivity | 1,100mV RMS |
| Output Device Type | Bipolars - 12 per channel |
| Output Binding Posts | WBT - 1 pair per channel |
| Output Power @ 8Ω | 200 Watts |
| Output Power @ 4Ω | 400 Watts |
| Output Power @ 2Ω | 800 Watts |
| Output Power - Bridged Mono | 800 Watts |
| Frequency Response | 10Hz - 200kHz (+0/-3dB) |
| Output Impedance | < 0.01Ω |
| Damping Factor (static) | > 800 |
| Gain | 31dB |
| Signal-to-noise Ratio | 106dB @ full power |
| Maximum Output Voltage | 40 Volts |
| Slew Rate | 42 V/µs |
| Maximum Current - Peak | 48 amperes |
| Maximum Current - Continuous | 22 amperes |
| Crosstalk @ 1kHz | -105dB |
| IMD | Unmeasureable |
| THD (20Hz - 20kHz @ 1 watt) | 0.015 % |
| THD (20Hz - 20kHz @ 200 watts) | 0.04 % |
| 12 Volt Trigger Input/Output Operation | Direct Logic (0V = off, 12V=on) using a 3.5mm mono jack with an Input/Output impedance of 1000Ω and current requirement of 12mA |
| RS-232 Port | 9-pin female DB connector |
| Power Consumption @ idle | 55 watts |
| AC Power Requirements | 120V / 60Hz 220-240V / 50Hz |
| Fuse Replacement 120V / 220-240V | 8.0A long fast blow / 4.0 long fast blow |
| Shipping weight | 90 lbs / 40 kgs |
| Dimensions (w x h x d) | 18.75 x 7.5 x 17.5 in. (47.6 x 19.1 x 44.5 cm.) |