User Guide

POWER
AMPLIFIERS
TX25OBA
TX5OOBA
.
1OO Volt
Une
Output
.
Balanced lnput
.
Mosfet Reliability
The TX250BA
and
TX500BA
are h
gh performance power
amplifiers us
ng hlgh voltage rnosfet
trans stors
in
therr
output stages to ensure maximum re iabilty
and
performance.
Mechanicaily,
these amplifiers are
so dly constructed
from
aluminlum extrusions wrth
generous
heat
sinking,
to ensure coo
,
effrcient operation. They
are a compact size, B9mm
high,
suited for direct mounting nto a stan-
dard 482mm wde rack. Handles
on the
front
panel
faci
tate the ease of
rack
mountrng and
remova.
Technical Specifications:
TX25OBA
TX5OOBA
POWER OUTPUT
250 watt
RMS 500 watt RlvlS
FREQUENCY RESPONSE
60Hz to 20kHz t 1 dB
DISTORTION
THD <0.1olo
at
Rated
Output
SIGNAL TO NOISE
>-75
dB
INPI.JT SENSITIVITY
1.5 Volts
(Transformer
Balanced)
OUTPUT
100 Volts
(Max
40 OHM Load)
CONTROLS LED
VU
N/eter,
Mains On/Off Rocker
Switch
with Built- ln Neon.
Preset
volume contro screwdriver adjustable
FAULT INDICATION
Automatrc Protection
against
DC ln
the output line or high temperature
due to
over oad or extreme ambient temperatures.
In
both cases
amplifier w I shut down then recyc e. Fault
and temp
LED indication
on the front
panel.
FUSES
Load Fuse
3
AMP
qu
ck acting
Supply
fuse
(DC)
5
AM P
quick
act ng
Supply
fuse
(AC)
4 AIV
P slow b ow
DIN/ENSIONS
89HX482WX260Dmm
89Hx482Wx380Dmm
WEIGHT
POWER REOI]IREMFNT
12 Kg
240 VAC
(on
y)
15 Kg