ASR
Audiosystems have been successfully building integrated amplifiers,
pre amplifiers, and phono pre-amplifiers since 1980. The concept
for their integrated amplifiers are totally different from
all other integrated amplifiers.
Friedrich Schaefer, owner and head of development at ASR Audiosystems
has a very definite idea of how an amplifier should sound:
The musical reproduction should be homogeneous and natural.
ASR Audiosystems has only one goal: combining the harmony
and musicality of a superb tube amplifier with the accuracy
and sovereign power distribution of modern transistor amplifiers.
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ASR Philo Brochure - 95 KB
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The Emitter I is the entry model, offering all the qualities
of the Emitter- family. Separate power supply are keeping
electro-magnetic fields and vibrations away from the
control unit.
The power supply unit is equipped with two large and
powerful PM (Philbert-Mantelschnitt) transformers with
a smaller PM transformer for Standby operation.The two
power transformers are switched ON softly with 5 high
power relays in the energy saving mode. If required,
they can be switched via a current limiter into normal
operation mode.
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The sovereign entrance into the class of our large integrated
amplifiers. The Emitter II was developed in order to
drive the most pretentious loudspeakers with ease of
power.
A basic requirement for this unit is an over dimensioned
current supply: For each channel, one separate power
unit with two large, heavy and powerful PM (Philbert-Mantelschnitt)
transformers with energy saving circuit. In total, 3
transformers generate eight different voltages.
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For a perfect sound and musical picture, an amplifier
has to be supplied with a very clean and stable supply
voltage to the input stage. This is of the up-most importance.
You have the option to supply the input stage of the
Emitter with a perfect voltage, achieved with a separate
accumulator power unit.
A separate unit is supplied with the Emitter and is
connected with a separate cable to the control unit.
The accumulator power unit consists of 6 accumulators,
each 6 Volt/12 Ah, plus an additional buffering capacity
of 400.000 uF. An automatic charging circuit is incorporated.
When the Emitter is switched OFF, the accumulators are
charged with a low current supply.
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The new ASR Mini-Basis Phono-Preamplifier is built in
a case made from high-quality, lightly transparent acrylic
glass like all ASR amplifiers. The inscription is engraved
and coloured by hand.
The Mini-Basis is adjustable in the input impedance
(22, 100, 47.000 ohms) and in the gain (+10dB, +16dB,
+30dB, +35dB, +40dB)to use it with all usual MM (Moving
Magnet) and MC (Moving Coil) pickups.
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The
ASR Basis Exclusive is our most complex Phono preamplifier
and is in series equipped with the expensive MIL chip
AD 843 SQ. The external power unit is based on the Battery-power
unit for the ASR emitter with 400.000 uF additional
filtering. In the housing of the ASR basis a buffer
with a
further 700.000 uF is installed.
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