SME M2 Series Manuale utente
The best pick-up arm in the world
INSTRUCTIONS SERIES M2 MODELS M2-9-10-12
Introduction
The Series M2 embraces three models the M2-
9, M2-10 and M2-12 offering pivot to stylus
dimensions covering virtually all turntable
requirements.
These arms offer at reasonable cost meticulous
build quality with all the most important features
including lightweight stainless steel tonearm,
detachable magnesium headshell with azimuth
adjustment, tungsten balance weight, superb
quality ball race bearings etc., and a level of
stiffness and rigidity to suit all types of cartridge.
All M2 arms are equipped to receive an
accessory fluid damper, FD-M2 for use where
severe floor vibration is encountered.
2
Contents
Page
2 Introduction
4 General arrangement
5 Dimensions
6 Specifications
7 Packing list
8 Parts identification
9 Preparing the arm mounting board
10 Fitting the arm
11 Audio lead
12 Fitting the cartridge
13 Fitting the headshell
14 Longitudinal balance
15 Vertical tracking force (VTF) adjustment
16 Arm height (VTA) adjustment
17 Azimuth adjustment
18 Horizontal tracking angle (HTA) adjustment
19 Positioning the armrest
20 Anti-skate adjustment
21 Operation
22 Adjusting and cleaning the arm lift
23 Appendix
3
General arrangement: M2-9, M2-10 & M2-12
4
Dimensions
M2-9 M2-10 M2-12
A - Pivot to stylus 233.20 239.30 308.81
B - Pivot to turntable centre 215.40 222.00 295.60
C - Cartridge fixing centres 12.70 12.70 12.70
D - Offset Angle 23.63º 23.23º 17.62°
E - Linear offset 93.47 93.47 93.47
F - Overhang 17.80 17.30 13.21
G - Height above mounting surface 87.00 max 87.00 max 87.00 max
63.00 min 63.00 min 63.00 min
H - Mounting surface to underside of headshell 67.40 max 67.40 max 67.40 max
43.40 min 43.40 min 43.40 min
J - Depth below mounting surface 46.00 46.00 46.00
K - Balance weight radial clearance 51.00 51.00 51.00
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Specifications
M2-9 M2-10 M2-12
Effective mass (g) 9.50 9.60 12.00
Cartridge balance range (g) 5-12 5-12 5-12
Vertical tracking force (VTF) 0-2.5 0-2.5 0-2.5
Maximum tracking error (degree/mm) 0.013 0.013 0.010
Null points: Inner (mm radii) 66.04 66.04 66.04
Outer 120.90 120.90 120.90
Weight, net (g) 590.00 605.00 675.00
Audio lead:
1.2m long balanced hybrid cable with
gold plated phono plug connections to amplifier
and independent ground system.
Internal wiring:
LCOFC.
Output:
RCA phono
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Packing list
The pack is the only one in which your Series M2 precision pick-up
arm can be safely transported. Please keep it for possible future use.
It contains the following:
Series M2 precision pick-up arm.
Detachable headshell.
Instruction book.
Mounting template.
Alignment protractor.
Shell hardware. ………………… Finger lift and two washers.
One pair #3-48 UNC x 11mm alloy
fixing screws and nuts.
2.0 A/F hexagon wrench.
Set of 4 M3 x 20mm button head screws
Mounting hardware. …………… 4 nuts and 4 washers.
4 arm mounting washers.
Audio lead.
Bias Weight.
Bias Guide.
0.89 A/F hexagon wrench.
Warranty card.
Sachet of silica gel.
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Parts identification
Illustration shows arm fitted with FD-M2 Fluid Damper.
Anti-skate Guide
Anti-skate Weight
Balance Weight
Dip-Screw
& Locknut
Damper Cover Anti-Skate
Leve
r
Damper Bath
Arm Lift
Bedplate
VTF Indicator Label
Arm Rest
Shield Can VTA Thumbwheel
Tone-Arm Pillar Clamp Screw
Headshell
Clamp Bolt Mounting Washer
Base
Clamp
Washer Base Clamp Nut
Ground
Terminal
Detachable
Headshell Control
Lever
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101 Preparing the arm mounting board
Where the deck is not already cut to accept an
SME arm, it will need to be prepared as follows:
Pierce the centre point A of the mounting
template to accept a pin or needle about 50mm
long. Place the template on the record spindle
and keeping it parallel with the surface on which
the arm will be mounted pass the pin vertically
through the centre point A and spike it into the
pick-up mounting board.
102
Disengage the template from the spindle and
maintaining the same alignment slide it down
the pin and onto the mounting board. This will
position the base for maximum effective
movement when adjusting the horizontal
tracking angle (HTA), see 125. Anti-clockwise
rotation from this position up to approximately
40° can be made to meet individual needs but
is not critical provided that the requirements of
the alignment protractor can be satisfied. Note
that the rear overhang requires a 51mm radial
clearance from the point shown on the
template.
103
Using a scriber or a compass point, spike
through the centre points B and centres of the
four fixing holes. Remove the template and
mark two Ø28mm circles about the points B
already centred. Join these together
tangentially with two parallel lines to complete
marking out.
Drill four Ø4mm fixing holes and two Ø28mm
holes. Cut away the remaining area to form a
slot and finish the edges with a file and
glasspaper. If a hole saw is not available chain
drill a series of small holes around the inside of
the line, saw and file out.
With suitable tools and technique the procedure
is similar for materials other than wood.
9
104 Fitting the arm
Remove the inner base clamp nut and base
clamp washer. Pass the loop at the lower end
of the anti-skate guide over the base clamp bolt
and fit the base clamp washer. Ensure that the
loop on the anti-skate guide is fitted into the
counterbore in the underside of the washer and
the slot is aligned with the anti-skate guide.
Replace the base clamp nut and tighten, lightly.
105
Fit a mounting washer to each of the four
counterbores in the upper surface of the
bedplate.
106
Position the arm on the mounting board and
insert the M3 button head screws into the holes.
If the holes are not tapped M3 to accept the
screws directly, it will be necessary to fit the
nuts and washers under the board. Tighten fully
using the 2.0mm A/F wrench.
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Questo manuale è adatto per i seguenti modelli
3
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