ASR Audio Systems Friedrich Schaefer, D- 35 745 Herborn +49 (27 72) 42 905
3.0
Adjusting the ASR Basis Exclusive
The ASR Basis can be perfectly adjusted to match the needs of your cartridge.
Before you do any adjustments inside the ASR Basis Exclusive
a)
use the enclosed (silver) 3mm Allen wrench to remove the top plate of the main unit
(please mark the front- and backside of the top plate before removing it!)
b)
behind the „Input" sockets of each input there are two 12 fold DIP switches to exactly
adjust the ASR Basis Exclusive to your cartridges. Please find the drawing at page 10.
c)
the input resistance can be adjusted on Dip No 1 to 10 at the 12 fold DIP
switches named „Input Resistance".
d)
The switching between balanced and unbalanced mode is done at the right Dip No 12.
e)
the gain can be adjusted on the 6fold DIP switches named „Gain Adjust"
f)
the low frequency cut Off can be adjusted to 2 Hz (switch to „On") or 20Hz
(switch to „Off") on the 2 fold DIP switches named „Low" and "2 Hertz"
The DIP switches have two different settings: „On" or „Off"; please be sure, that the
switches are set correctly (when set correctly, you will hear a slight „click")
3.1
Choosing the input mode, switching in unbalanced mode
The Basis needs to be adjusted to the input mode based on different kind of connections you use.
Please read page "Connection the tone arm cable" for more info.
When you use unbalanced cable you have to switch the right Dip No. 12 to ON.
Otherwise hum or popping noises may occur. This Dip switch is marked with "Unbalanced".
With balanced cable please switch the No. 12 to Off, otherwise you won't get out
the full quality of the balanced connection.
!! Balanced Cable Dip No. 12 right OFF, unbalanced cable Dip No. 12 ON !!
3.2
Adjusting the input resistance in balanced mode
Adjustment of the input resistance ( from 10 ohms to 20 kilo ohms ) can be easily made on the
switches No. 1-10 on the 2 pieces 12 fold DIP switches named „Resistance Adjust".
In balanced mode both the Dip switches marked with "Unbalanced" and "Balanced"
No. 1 to 9 per input channel must be adjusted in the same way to get the same load resistance for
both the positive and negative input !
Please set the DIP switches exactly the same for the right and the left channel.
The chart at the right half between the two rows of Dip switches shows the resistance values for
balanced mode.
For example for 94 Ohms you have to switch Dip No. 3 at the left and the right Dip switch marked
with "Unbalanced" and "Balanced" to ON. For 2 k for example put both Dips No. 7 to ON.
High End Phono-Pre-Amplifier ASR Basis Exclusive version 2010
turn
the unit
OFF
U
U
U
Page 6
.
U
Need help?
Do you have a question about the Basis Exclusive and is the answer not in the manual?
Questions and answers