Quest Engineering QTA 1480P, Руководство пользователя

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QTA 1360P/1480P
User Manual
User Manual Q-Tech Commercial Series
QTA 1360P/1480P
4
Power Source
AC Power Source
The supply transformer has been designed for
AC 240V /115V (±10%) 50 /60 Hz.
DC Power Source
Battery Connection (24Vdc)
When using external batteries, please ensure
the amplifier is grounded via the screw
terminal. (Electrical stability of the system
will be improved by providing a good earth
ground.) When connecting batteries, please
ensure correct polarity.
Main Connections
Each input has XLR and Phone jack input.
Use the one you want
Pin Assignments:
Balanced Audio (3 pole XLR):
Pin 1:
Ground / Screen
Pin 2: In phase / +ve / Hot
Pin 3: Out of phase / -ve / Cold
Unbalanced Audio (3 pole XLR):
Pin 1:
Ground / Screen
Pin 2: Signal
Pin 3: Ground / Screen (connect to pin 1)
For best performance when using long lines
between microphones/mixer and or amplifier
use balanced lines. These have the effect of
canceling out any noise or hum that may be
induced into the cables.
Speaker Output Connection
The speaker output screw terminal is on the
rear panel. It can connect low impedance 8
ohm, or high-level 70V or 100V speaker. Use
only one of these output connections for
corresponding speaker.
As a guide for the correct gauge of wire, we
recommend the following:
Link Output Connection
Use XRL (female) to connect booster output
to another amplifier.
A distribution amplifier should be used when
more than 6 amplifiers need to be looped.
100V
Up to 50m AWG25-26 (0.15mm2)
50m - 200m AWG20 (0.5mm2)
Over 200m AWG18 (0.75mm2)
70V
Up to 50m AWG24 (0.20mm2)
50m - 200m AWG17 (1.0mm2)
Over 200m AWG16 (1.5mm2)
Low
Impedance
(4
Ω)
Up to 10m AWG18 (0.75mm2)
10m - 30m AWG13 (2.50mm2)
1
3
2
Plug
1
3
Socket
2
Viewed from Solder
Side of Plug/Soceket