There are also TRS jacks for linking etc. They are wired as follows:
TIP
-
HOT (+)
RING
-
COLD (-)
SLEEVE
-
SHIELD/SIG. GROUND
Figure 4. TRS phone plug
The input impedance is sufficiently high (20kohms balanced) to allow
"daisy-chaining", or multiple parallel input connections. To daisy-chain, use
the TRS jacks provided on each channel. The input circuits also have high
enough headroom to accept the maximum output level from virtually any
low-level signal source.
Figure 5. Rear panel connectors
Martin Audio – MA1.3 Power Amplifier
E
NGLISH
9
SIG.GND
– +
INPUT
CH.B
CH.A
Nor
mal P
ol.B
Re
v
erse P
ol.B
Stereo
Link A+B
Gain 37 dB
Gain 32 dB
Mono Bridge
XLR
1/4"
Pin 1 Gnd Sleeve
2 Pos Tip
3 Neg Ring
Must be grounded
230V AC 40-440Hz
CONTENTS
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