Consonance PM-7 Solid State Phonostage w/ separate Power Supply

phonostage and power supply - front view
phonostage rear panel
power supply rear view
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$595.00
Voltage:: 115V/60Hz for North America only
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 This Consonance PM-7 phonostage has also been sold on western market under model number Consonance PM-8. 

This is an Open Box item for clearance - this unit has only been used for demonstration with extremely low hours like NEW. Only one unit available - ship from Calgary, Canada to Canada and USA for 115V/60Hz use only. Extremely well built low noise phonostage - comparable western brands will fetch for $1500 and above! 

 

Manufacturer's Description: 

In the PM-7 each preamplifier is independently configurable via a series of DIP switches that control gain and resistance. An additional DIP switch acts as a "rumble filter" to allow you to limit low-frequency response to 2Hz or 20Hz. Three DIP switches allow loading to be adjusted from 24 ohms to 1k ohm for moving-coil (MC) cartridges; and, for moving-magnet (MM) types, 47k ohms in unbalanced mode. There are switch positions for values of 24,130,150, 1k, and 47k ohms.
Capacitance adjustment for M Ms is limited: 100 pF. A Three-switch DIP-switch array offers gains of 80, 150, 775, 850, 1300, 1400, 1900, 2000 times.

The heart of the PM-7 is a super-quiet analog device microphone preamp based on op-amps. After the adjustable linear gain stage, the signal passes through a passive low-pass RIAA filter and the low-frequency cutoff switch, followed by active RIAA equalization. The low-impedance unbalanced signal can then be output directly.

 

A past owner of Consonance PM-8 ( western model for PM-7)'s review can be found online as follows:

"Top of the line Consonance Opera PM-8 MM/MC preamp with adjustable impedance and gain. Comes with separate matching outboard power supply, each part resting on 3 sorbothane cones. Ultra quiet gain stages (96dB SNR compared to the usual 80dB SNR in the best phono stages in this price range). Based on the latest ultra low noise studio microphone preamplifiers and an all passive RIAA EQ network. Will handle pretty much any MM or MC cartridge ever made including those harder to properly match HOMC models."

 

Specification:



CONTROL FUNCTIONS: Power On/Off ,Switch for Gain and Impedance
HARMONIC DISTORTION (for 2V RMS at output): 0.001%
INPUT INTERFACES: 1 group (RCA)
OUTPUT INTERFACES: 1 group (RCA)
GROUNDING INTERFACES: 1 group
SIGNAL/NOISE: 96dB
CONSUMPTION:20watt

Customer Reviews

Overall:
Reviewed by Rachel Zhang, 07/06/2018

"Top of the line Consonance Opera PM-8 MM/MC preamp with adjustable impedance and gain. Comes with separate matching outboard power supply, each part resting on 3 sorbothane cones. Ultra quiet gain stages (96dB SNR compared to the usual 80dB SNR in the best phono stages in this price range). Based on the latest ultra low noise studio microphone preamplifiers and an all passive RIAA EQ network. Will handle pretty much any MM or MC cartridge ever made including those harder to properly match HOMC models."