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Fig. 5.6. Measuring arrangement for recording frequency response of
amplifiers in the
range
2 Hz to
200ooo
Hz.
B,oel
&
Ki"''
-
M"""rino
Qbjoct,
~esponse
of
Amplifier
B•Uel
&
Ki"''
OODDDDDDDDDDDDDDDDDDDDDDDDODDDDDDDDDDOO
O
OODDODDODOD
d;,
Ro<o.dino
No.,
51on.
,
v
N
1
0o1o,
23-6-65
p
_,
-.5..Q..d.lL_
z~
L...J,
20dB llmv
-
2
Hz
S
'C
20
SO
100
200
21fz"
1000
2000
5000
10000
20000
50000
100000
QP 1141
ll>t.
Rongo'
_5.Q_
dB
RO<tiflo,,
____EMS__
loww Lim.
F._
Hz
Wrttlng
SpMd:
_____50___
mm{sec.
Papef
Speed:
_____!Q__
mmfsec.
{65f33
Fig. 5.7. Amplitude vs. frequency
characteristic
of a Hi-Fi amplifier recorded
by the
equipment
shown in
Fig. 5.6.
ACOUSTICAL MEASUREMENTS
Frequency Response of a Loudspeaker (Tweeter).
By connecting the Level Recorder with the B
&
K Microphone Amplifier
Type 2604, the
Condenser
Microphone
Type
4133, a
Cathode
Follower Type
32
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