ASR Audio Systems Friedrich Schaefer, D- 35 745 Herborn +49 (27 72) 42 905
2.0
Connecting the ASR Basis Exclusive
2.1
Connecting to a preamp or an integrated amplifier
U
ATTENTION:
U
Before connecting cables to the inputs or outputs please switch the main unit OFF.
After you made this connections you may connect the power cord to the AC outlet as last cable.
On the back panel of the main unit the output sockets ( named with „Out“) are located left and right
of the power supply cable. The input sockets are located left and right of the „Out“ sockets and are
named with „In“. The RCA sockets for the
right channel
are marked with a
red
ring, for the
left
channel
with a
white
ring.
The ASR Basis Exclusive has two outputs RCA for unbalanced and XLR for balanced connection.
You can use them both also together upon your needs.
When you are using the balanced inputs you are not obliged to use the balanced out.
The preferred output is the unbalanced type, cause the balanced signal is made with a converter.
2.2
BCC
Connecting the tone arm cable
Moving Coil
(MC) and
MM cartridges
can be connected to the ASR Basis Exclusive.
Balanced or unbalanced connection can be used at the inputs of the Basis Exclusive !
But we
strongly recommend
the use of
balanced connection !
The ASR Basis Exclusive is
designed
for using the
balanced input
and has
best results
only with
balanced input connection.
!!
Cartridge
s are like microphones the only
balanced sources
from their construction !!.
With
unbalanced connection
at the input you don’t have the full possible sound quality.
The use of the
balanced output
is not obligatory together with the use of the
balanced input
.
Definition of a Balanced connection :
A
balanced
tone arm cable must have
two conductors
and a
separate shielding
.
This shielding has to connected separately to ground and should never be connected to the plus or
Minus wires- otherwise you will get heavy distortions, cause the shield will work as antenna !
Balanced cables can be connected at both the RCA or the XLR plug
. Both inputs sockets are
internally connected. The RCA inner pin is connected to Plus, the outer ring to Minus.
The pins on the XLR sockets are international standard: 1 = Ground, 2 = Plus 3 = Minus.
The only advantage of using XLR is that the third pin 1 can be used for ground connection of the
shield. At RCA the shield must be connected separately to the big ground pole plug connector.
A tone arm cable that has already
two wires
and be converted simply by connecting the shield to
ground ( the black pole plug at the Basis ) instead of to the outer ring at RCA what is minus.
At
balanced connections
the adjustments have to be made at both 12 Pin Dip switches left
and right. The switch
Dip
No. 12
has to be
OFF.
Please connect the ground cable of your turntable to the (black) pole terminal on the back panel.
High End Phono-Pre-Amplifier ASR Basis Exclusive version 2010 Page 4
