(Line In; (Line In Effect Output); Mon Out; Pgm Out/Tape Rtn Monitor - Tascam M-300 Series Operation & Maintenance Manual

1-10. F R EQUENCY RESPONSE
Set the input and output levels to nominal as
in previous paragraphs and connect an oscillator
to the input jack and a wide range (more than
1 00 kHz) level meter to the output jack.
F requency response ranges are as follows:
-->
M I C IN PGM OUT 20 Hz - 30 k Hz
Other I nputs --> Other Outputs
1 - 1 1 . T.H.D.
T . H . D . is also measured with the input and out­
put levels set to nominal as previously described.
Connect a low distortion oscil lator to the input
jack, and a 30-kHz L.P.F. and a distortion
meter to the output jack. Set the oscil lator
fl
� MIC TO PGM OUT
(150 SOURCE)
LINE TO PGM OUT
� L INE TO PGM OUT
1 LINE TO EF F/AUX OUT
1 LINE TO ST OUTPUT
1 LINE TO MONO OUT
1 LINE TO MON OUT
1 LINE TO SOLO OUT
�J
d B
�J
dB
20 Hz - 30 k Hz
308
DIN
8 2: MI C
60 dB
86 dB
80 dB
85 dB
86 dB
83 dB
84 dB
B6 dB
output to 1 kHz and read the distortion meter.
Specs are as follows :
1 M I C I N -> PGM OUT
1 LI N E I N -> PGM OUT
1 LI N E I N
.... STE R E O OUT

. ... MON OUT

1 LI N E I N
1 LI N E I N -> E F F ECT OUT
1 LI N E I N -> AUX OUT
... . SOLO OUT
1 LINE I N

1-12. S/N RATIO

S/N ratio should be measured with the input and
output l evels set to nominal as previously
described and a 1 50-ohm dummy load con­
nected to the M I C IN connector.
Specs are given in the table below.
312
I HF-A DI N
62 dB 52 dB
87 dB
1 H L I N E
82 dB 77 dB
87 dB 82 dB
8B d B 85 dB
85 dB
B6 dB
B8 dB
1 1
1 -
0.025 % or less
0.02 % or less
0.02 % or less
0.02 % or less
0.02 % or less
0.02 % or less
0.02 % or less
320
I HF-A DIN
IH F-A
20 2: MI C I
50 dB
58 dB 55 dB
BO dB 73 dB 75 dB
84 dB 78 dB 80 d B
87 dB 84 dB B6 dB