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MOON LIMITED EDITION SERIES
                   
Updated: August 2, 2005
P-5 LE Dual-mono Preamplifier
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Simaudio Ltd. brings you the MOON Limited Edition series, representing a genuine
leap forward in both sonic excellence and physical appearance. The MOON P-5 LE balanced
differential Dual-mono Preamplifier employs a class "A" open loop circuit topology, an exceptionally
short and a capacitor-free signal path using a fully discrete "shunt to ground" gain stage. The
P-5 produces no detectable sonic colorations.
Originally introduced in 1997, the MOON P-5 has garnered many colossal reviews and numerous
awards from the global audio press including a long-standing place in the prestigious "class A"
category of Stereophile Magazine's "Recommended Components" listing. During's it's illustrious
life-cycle, the MOON P-5 has undergone various minor changes on occasion, either as a result
of the availability of new and improved parts and/or subtle design changes, culminating in the
Limited Edition version.
Unique to the LE version of the MOON P-5 is an entirely redesigned power supply that allows
for an even higher level of musical reproduction than before. Superior (and more substantial),
filtering, isolation, and regulation plus the addition of inductor filtering has both lowered
the noise floor, and increased the channel separation. Sonically, the dynamic range is increased
and music emerges from an even blacker background silence than before.
MOON Limited Edition series features include polished chrome accents, a ½"
thick brushed & anodized silver faceplate, a custom 2 meter Cardas power cord and a Limited
Edition serial number plaque. Beginning in January 2004, we will be producing only 250 units
of the MOON P-5 LE.
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Significant Design Features
An oversized outboard power supply housed in a separate matching chassis ·
8 stages of DC voltage regulation ·
An exceptionally short signal path measuring only 9 inches in length from the rear
panel's input to output connectors, yielding a much faster transient response ·
Fully balanced circuitry throught the entire preamplifier ·
Open loop zero feedback circuit topology using absolutely no capacitors anywhere in the audio
signal path ·
Proprietary designed fully discrete "shunt to ground" gain stage employing a precision relay network
which uses only one metal film resistor at any given time (rather than a series of resistors),
for the audio signal to pass through, resulting in a gain control that doesn't degrade sonic
performance regardless of the selected setting ·
J-FET input devices and MOSFET output devices ·
A custom proprietary toroidal transformer design with lower magnetic, electrical and thermal loss,
yielding an improved power transfer and lower regulation factor, resulting in increased current
speed and better dynamics ·
One single-ended audio input which bypasses the gain stage to accomodate a component, such as home-theatre processor,
whose own volume control is used instead ·
Accurate matching of the very finest high quality electronic components ·
A symmetrical circuit design ·
Pure copper circuit board tracings with extremely low impedance characteristics ·
Extremely rigid chassis construction to minimize the effects of external vibrations ·
Improved reliabilty through the elimination of moving parts ·
Designed to be powered up at all times for optimal performance ·
Low operating temperature for a longer than normal life expectancy.
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Specifications:
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| Type |
Solid State |
| Configuration |
Dual Mono |
| Power Supply Transformer |
0.5kVA |
| Power Supply Capacitance |
70,000µF |
| Class Of Operation |
Class A |
| Design |
Open Loop / Fully Balanced Differential |
| Single-ended inputs   (RCA) |
5 pairs |
| Balanced Inputs   (XLR) |
1 pair |
| Input Device Types |
J-FET |
| Input Impedance |
47,500 ohms |
| Input Sensitivity |
200mV - 4.0V RMS |
| Tape Output |
1 |
| Tape Monitor Loop |
None |
| Output Device Types |
MOSFET |
| Balanced Outputs   (XLR) |
1 Pair |
| Single-Ended Outputs   (RCA) |
1 Pair |
| Output Impedance - XLR |
110 ohms |
| Output Impedance - RCA |
220 ohms |
| Gain Control |
RBG ry   (fully discrete) |
| Gain - XLR |
12dB |
| Gain - RCA |
9dB |
| Signal-to-noise Ratio |
100dB @ full output |
| Maximum Output Voltage - XLR |
10 Volts |
| Maximum Output Voltage - RCA |
5 Volts |
| Frequency Response |
20Hz - 20kHz   (+0 / -0.1dB) |
| Crosstalk @ 1kHz |
-72dB |
| IMD |
unmeasurable |
| THD   (20Hz - 20kHz) |
0.05% |
| Headphone output |
None |
| Available Faceplate Finish |
Silver |
| Remote Control |
All-Aluminum Full Function |
| AC Power Requirements |
120V / 60Hz     240V / 50Hz |
| Fuse Replacement - 120V |
2A long slow blow |
| Fuse Replacement - 230V |
1A long slow blow |
| Number of Chassis |
2   (matching) |
| Warranty   (USA & Canada) |
10 years |
| Shipping Weight |
42 lbs / 19 kgs |
| Dimensions - Preamplifier   (W x H x D) |
17 x 4 x 15 in.   (43 x 10 x 38 cm.) |
| Dimensions - Power supply (W x H x D) |
17 x 4 x 15 in.   (43 x 10 x 38 cm.) |
       
Specifications are subject to change without notice.
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