ASR Audio Systems Friedrich Schaefer, D-35745 Herborn, Germany +49 / 2772 – 42 905
High End Integrated Amplifier ASR Emitter I and II version 2009 on Page 13
Adjusting the input level
To avoid difference in volume when switching from one input to another, the input level of each
high level input can be adjusted. The input with the lowest level (like a phono preamplifier or an
analogue tuner) should be left unaltered and work as a reference to adjust the input level for the
other high level inputs of the ASR Emitter.
Please choose the input that you want to adjust. Please press the “Mode”-button on the ASR
remote control (or the „Tape Monitor“-button on the front plate)
four times
– the yellow „Input
level“-LED is flashing. Now either use the “Vol“-buttons (upper “Vol”-button = increases input
level, lower “Vol”-button = decreases input level) on the ASR remote control or the middle knob
of the ASR Emitter to adjust the input level for the chosen input. For all other inputs do equal.
Adjusting the configuration of the ASR Emitter
The ASR Emitter is equipped with internal DIP switches to configure the unit. Factory setting
depends on the features of the individual unit. To re-configure your ASR Emitter individually,
please contact your authorized ASR Audio Systems dealer. The left and right switches are for
separate adjustments and are set different left and right.
High Frequency compensation switch
The
high frequency compensation
of the output stages in the Emitter can be increased with two
switches on the mainboard, located in the middle left and right. Pos 2 means higher compensation.
High Compensation increases the
stability
with difficult loads like high-capacitive cables or
impedance critical
loudspeakers. The
sound
becomes at the same time a little bit
smoothe
r.
By the way also the sound in the
burn–in time
can be arranged somewhat more pleasant.
4.0
Protection circuits of the ASR Emitter
Every ASR Emitter is equipped with several
protection circuits
to avoid any damage on the unit
itself and on your loudspeakers. Trouble during operation will be indicated by a flashing red LED
„Fault“. The ASR Emitter and the voltage supply is
switched OFF
, if the protection circuits
detect over-temperature, short circuit and/or repeated overloads during operation. To restart the
operation please put left knob to the „Off“-position for some seconds.
4.1
Impedance-check before the ASR Emitter is switched ON
Normally the ASR Emitter has a direct output without relay. When the Emitter is
equipped
with a
second loudspeaker
output or
headphone
all outputs are switched with
relays
.
In this case the outputs are checked for
short circuit
to avoid damages.
After switching the ASR Emitter ON, the DC impedance is checked during the countdown from
„99“ to „11“. If the impedance is lower than 1,5 ohms the Emitter stops the countdown and a red
led bar
“Short circuit“
is flashing. In this case please check the speaker cables for shorts.
When you don’t find a fault please detach the speaker cables from the ASR Emitter and try again.
If the red Led is still flashing, please contact your authorized ASR Audio Systems dealer.