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 20
7.0
Technical Data
ASR Emitter
: integrated amplifier with adjustable input sensitivity, relays step switch volume
control (75dB), remote control, six high level inputs switched via relays.
Input stage with
FET inputs
and separate voltage stabilization, output stage with high internal
feedback, output and driver stage built with complementary MOS-FETs, temperature-depended
regulation of bias 400/600mA (ASR Emitter I/II), amplifier operates mostly in class A mode,
no capacitors in the signal path, full DC operation with offset regulation.
PCB double-sided 2x 108 µ
copper gold plated, signal wires made out of pure silver and
shielded, separate grounding for each channel and for signal routing and voltage supply,
pcb assembly with silver solder, electrolytic and foil capacitors are installed for buffering
of the operational voltages in the main unit and the external power supplies.
External power supply
with 2x 700 VA (ASR Emitter I )/ power supplies with 4x 700 VA
(ASR Emitter II) rated power, with more than 1000 VA output (impulse) for each Philbert-
Mantelschnitt- transformer, separate transformers and rectifiers for positive and negative
voltages (two transformers each in separated cases per channel for the ASR Emitter II).
A built-in 72 VA transformer supplies the input stages and the controls with + 15 volts.
Six relays for each power supply are used to switch the transformers in energy saving or
normal power mode. The supply voltages are shown via 10 Leds in the power supply unit.
The cases of the power supplies are made of heavy-duty metal for a better shielding,
the main unit of the ASR Emitter is made of acrylic glass.
RMS output power at 20Hz to 20kHz, 0.1 % distortion, both channels driven:
ASR Emitter I Basic
2x 140 watts/8 ohms, 2x 250 watts/4 ohms, 2x 450 watts/2 ohms, 2x 600 watts/1 ohm
ASR Emitter I Exclusive:
2x 160 watts/8 ohms, 2x 290 watts/4 ohms, 2x 520 watts/2 ohms, 2x 700 watts/1 ohm
ASR Emitter II Basic:
2x 250 watts/8 ohms, 2x 450 watts/4 ohms, 2x 800 watts/2 ohms, 2x 1200 watts/1 ohms
ASR Emitter II Exclusive:
2x 290 watts/8 ohms, 2x 500 watts/4 ohms, 2x 900 watts/2 ohms, 2x 1400 watts/1 ohms
Dynamic output power:
about 1,5x RMS output
Distortion:
from 50mW to -1dB under RMS output 1kHz <0.02%, from 20Hz to 20kHz <0.1 %
Signal-to-noise-ratio:
> 90dB (at 1 watt/8 ohms)
Frequency response
: -0.2Hz to 500kHz (- 3dB)
Input impedance:
10 k ohms
Gain:
up to 28 dB in position „1“,up to 43dB in position „2“ depending on volume set
Input sensitivity:
level „61“ = 2,0V, level „76“ = 0,4V (for 150 watts into 8 ohms)