Yamaha HS8 Service Manual page 18

HS8/HS7/HS5
2-2-2 Maximum Output
Measurement condition Criteria
The following outputs are obtained, total har-
monic distortion is measured.
The signal is input to
the INPUT 1 (XLR).
SPOUT (LF)
Red-Black
The following outputs are obtained, total har-
monic distortion is measured.
The signal is input to
the INPUT 1 (XLR).
SPOUT (HF)
Yellow-Blue
* Measure this inspection within 5 seconds.
2-2-3 Total Harmonic Distortion
Measurement condition Criteria
The following outputs are obtained, total har-
monic distortion is measured.
The signal is input to
the INPUT 1 (XLR).
SPOUT (LF)
Red-Black
The following outputs are obtained, total har-
monic distortion is measured.
The signal is input to
the INPUT 1 (XLR).
SPOUT (HF)
Yellow-Blue
18
HS8 THD + N =
Min +23.6 dBu 1% or less.
HS7 THD + N =
Min +22.4 dBu 1% or less.
HS5 THD + N =
Min +20.0 dBu 1% or less.
HS8 THD + N =
Min +26.1 dBu 1% or less.
HS7 THD + N =
Min +25.1 dBu 1% or less.
HS5 THD + N =
Min +23.3 dBu 1% or less.
HS8 THD + N =
+21.0 ± 0.2 dBu 0.2% or less.
HS7 THD + N =
+20.1 ± 0.2 dBu 0.2% or less.
HS5 THD + N =
+18.8 ± 0.2 dBu 0.2% or less.
HS8 THD + N =
+21.8 ± 0.2 dBu 0.2% or less.
HS7 THD + N =
+20.7 ± 0.2 dBu 0.2% or less.
HS5 THD + N =
+19.3 ± 0.2 dBu 0.2% or less.
2-2-4 Frequency Response
Measurement condition
The signal of -20dBu is input to
INPUT 1(XLR), and the output
voltage is measured.
The signal of -10dBu is input to
INPUT 1(XLR), and the output
voltage is measured.
1.7kHz
-20dBu
47.0Hz
-20dBu
1.8kHz
-20dBu
51.0Hz
-20dBu
Each signal is
input to INPUT
1.7kHz
1(XLR), and the
-20dBu
output voltage is
measured.
65.0Hz
-20dBu
2.9kHz
-10dBu
2.7kHz
-10dBu
3.1kHz
-10 dBu
Criteria
A1
SPOUT(LF)
A2
Red-Black
A3
A4
SPOUT(HF)
A5
Yellow-Blue
A6
T h e r a n g e
of -3.0±2dB
based on A1.
The range of
+ 9 . 9 ± 2 d B
based on A1.
T h e r a n g e
of -3.0±2dB
based on A2.
SPOUT(LF)
Red-Black The range of
+ 5 . 8 ± 2 d B
based on A2.
The range of
-3±2dB based
on A3.
The range of
+ 4 . 5 ± 2 d B
based on A3.
T h e r a n g e
of -3.0±2dB
based on A4.
T h e r a n g e
SPOUT(HF)
of -3.0±2dB
Yellow-Blue
based on A5.
T h e r a n g e
of -3.0±2dB
based on A6.