LEGACY PRODUCTS
EVOLUTION Series
P-7 Preamplifier
Launched: 2006
Discontinued: 2013
MOON P-7 Silver MOON P-7 Black
The MOON P-7 preamplifier is a dual-mono fully balanced differential design, representing the next generation of MOON high-performance audio components. Using several newly developed proprietary technologies, this preamplifier yields absolutely no sonic colorations, an incredible level of transparency, and a very impressive signal-to-noise ratio. Further raising the bar, the P-7 can be fully integrated into a custom-install environment via an RS-232 port. As well, a plethora of user selectable cosmetic options are available at the time of purchase.

P-7 Photo Gallery

Inside view of the P-7
 
Rear view of the P-7
 

P-7 Technical Features

· A dual-mono oversized power supply using 2 toroidal transformers in conjunction with 5 stages
  of DC voltage regulation and extensive choke filtering
· M-eVOL volume control circuit based on a resistive array configuration with no sonic degradation
  of the audio signal regardless of the selected volume setting
· Power supply voltage regulation includes i²DCf (Independent Inductive DC Filtering); There is one inductor
  dedicated to each integrated circuit type component (DAC, Op-Amp, etc.) in the audio circuit's signal path;
  24 stages in all
· 130 individual volume steps in 1dB and 0.5dB increments
· M-Lock for "user selectable" maximum volume setting lock-out for each line input
· "Gain offset" for each individual line input with a ±10dB range
· Each line input is fully configurable to be "home-theater ready", where the gain section of the P-7
  is bypassed
· RS-232 port for (i) full unsolicited bidirectional feedback and (ii) firmware updates
· IR input for external control
· 12 Volt trigger output for remote operation
· SimLink™ controller port for 2-way communications with other compatible MOON components
· 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
· 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
· Includes FRM-2 remote control.
 
P-7 Detailed Specifications
Type Solid State
Configuration Dual-Mono / Fully Balanced
Power Supply Transformers 2 x 10VA (audio);   1 x 10VA (controller)
Power Supply Capacitance 44,000µF
Circuit Topology Open Loop
Balanced Inputs   (XLR) 2 pairs
Single-ended inputs   (RCA) 4 pairs
Input Impedance 22,000Ω
Input Sensitivity 200mV - 4.0V RMS
Monitor Loop 1
Balanced Outputs   (XLR) 1 Pair
Single-Ended Outputs   (RCA) 2 Pairs   (variable & fixed)
Output Impedance   (RCA / XLR) 50Ω / 100Ω
Gain Control M-eVOL   (R-2R)
Gain 9dB
Signal-to-noise Ratio   (20Hz - 20kHz) 115dB
Maximum Output Voltage - XLR 12 Volts
Maximum Output Voltage - RCA 6 Volts
Frequency Response 5Hz - 100kHz   (+0 / -0.1dB)
Crosstalk @ 1kHz -115dB
IMD unmeasurable
THD   (20Hz - 20kHz) 0.002%
12 Volt Trigger Output Operation Direct Logic (0V = off, 12V=on) using a 3.5mm
mono jack with an output impedance of 1000Ω
and current requirement of 12mA
SimLink™ Port 1 input + 1 output each on 1/8" mini-jack
RS-232 Port 9-pin female DB connector
IR input 1/8" mini-jack
Remote Control FRM-2 All-Aluminum Back-lit Full Function
Display Type 8 character dot matrix LED
Power Consumption @ idle 20 Watts
AC Power Requirements 120V / 60Hz   220-240V / 50Hz
Fuse Replacement   120V   /   220-240V 500mA short slow blow   /   250mA short slow blow
Shipping Weight 40 lbs / 18 Kgs
Dimensions (w x h x d) 18.75 x 5.4 x 17.6 in.   (47.6 x 13.7 x 44.7 cm.)
  Specifications are subject to change without notice.