NASH
MC/MM PHONO PREAMPLIFIER
REVISION P
R
A – JUNE 2018
Copyright © 2018, M2Tech Srl
11
M2Tech
www.m2tech.biz
3. Back Panel
OUT
LINE 2
DC IN
15V
DC
EXTERNAL
SUPPLY
MC
MM
LINE 1
CHASSIS
LOAD
GAIN
10
1k
3
30
DB
16.5
12
7.5
169
675
90
21
S/N:
MM IN
Z-MATCH
MADE IN ITALY
TR IGGER
IN 12 VDC
POWER
MODE
A
B
NASH
M2TECH
5
7
6
8
9 10
11
12 13 14
15 16
17
Figure 2
5) MC gain pot.
Set the MC stage gain by this pot as indicated by the app or following
your preferences. Gain can be selected 3dB to 30dB, which adds to the MM gain.
6) Chassis post.
Connect the earth wire of the turntable’s cable. It can also be used to
connect the
NASH
to a good earth to reduce stray noises pickup.
7) MC input resistance pot.
Set the MC stage input impedance by this pot as indicated
by the app or following your cartridge’s manual indications. Resistance can be selected 10
Ohms to 1000 Ohms.
8) MC input.
Connect a low output cartridge (typically less than 1mV). Female RCA.
9) MM input.
Connect a medium or high output cartridge (typically 1-5mV). Female RCA.
10) MM input resistance and capacitance selection DIP-switches.
When using the MM
input, set these switches according to the app or following your cartridge’s manual
indications. See chapter 10 for details.
11) Line inputs.
Connect line-level sources like tuners, tape decks, TV’s. Female RCA.
12) Outputs.
Connect to your preamplifier or integrated amplifier. Female RCA.
13) Power mode switch.
Allows for choosing the way the
NASH
behaves when power is
applied. See chapter 8 for details.
14) External supply input.
To improve the
NASH
performance, power it by the
Van Der
Graaf MkII
connecting one of its 4-pin outputs to this input using the cable provided with
the
Van Der Graaf MkII
.
15) 15V
DC
power input.
Connect the stock wall adaptor to this input. 5.5/2.1mm barrel
plug with positive on internal contact.
