Dual Shure M 71 MB D Owners Manual

Page 1

Dual automatic turntable

SHURE M 71 MB-D

This unit is equipped with the hi-fi stereo magnetic pick-up
cartridge SHURE M 71 MB-D. The standard 0,6 mil diamond
stylus (Fig. 4) permits tracking of stereo- and LP records.
For 78 RPM records a replacement stylus assembly DN 321
(SHURE N 75-3) is available as an optional accessory.

Technical am
Needle :

Recommended stylus
prawn:

F requency range:
Output:

Output difference
betwenn channels:
Isolation

between channels:
Compliance :

Intermodu Iation
distortion:

Net weight :
End resistance:
Special acctssory:

DN 325

(SHUFIE N 71 M-Bl
0.6 mil diamond needle
for all micro-groove and
stereo records

Color coding: beige

2-3 9

20 c.p.s. to 20 k.c,p.s,

Minimum 0.8 mV / 1 crn/sec per
channel at 1 k.c,p.s.

Maximum 1.6 mV / 1 cm/sec per
channel at 1 k.c.p.s.

Maximum 2 dB at i k.c.p.s.

Minimum 20 dB at 1 k.c.p.s.
Horizontal 20 x 10'6 om/dyn
Vertical 20 x 106 cmldyn

At 2.5 g stylus pressure. 8 cm/sec
velocity, less than 4%

5.5 p

47 K 9

ON 321 (SHURE N 753)

2.5 mil diamond needle

for 78 rpm-records

Tracking prawn: 3 g

Frequency response ~ Stereo and crosstalk damping, measured with
equalizer pro-amplifier WV 46

Test record: DIN 45 541 (recording curve 5180-515-15 1s)
hacking pressure: 2.5 9, record player: Due! 1019

For proper balancing of the tonearm~
(see operating instructions for your Dual
automatic turntable) the needle protector
(weight approximately 0.52 9) should be
removed from the pick-up cartridge
(Fig. 2).

The novel snap-on mounting of this
pick-up cartridge on the cartridge holder
eliminates all mounting hardware. The
snap-on mounting secures perfect geo
metrical alignment of the stylus tip.

Removal of pick-up mridgo from
mounting pm.

Remove complete pick-up head from the
tonearm and remove slipvon connectors
from contact prongs of cartridge. Hold
the mounting plate with one hand and
pull down cartridge. The snepon mount-
ing of the cartridge on the cartridge
plate is shown fig. 3.

Attantionl

The stylus assembly should be removed
from the cartridge (see Fig. 4) before
mounting or removing same from the
cartridge holder.

Pick-up cartridges with 1/1 standard
mounting dimensions can be mounted
on the cartridge holderwith conventional
mounting hardware.

Fig.2

Fig.3

Fig.4