Connecting The Asr Mini-Basis; Connecting To A Pre- Or An Integrated Amplifier; Connecting The Tone Arm Cable; Adjusting The Asr Mini-Basis - ASR Mini-Basis MK II Manual

ASR Audio Systems Friedrich Schaefer, D- 35 745 Herborn +49 (27 72) 42 905
2.0

Connecting the ASR Mini-Basis

2.1 Connecting t o a pre- or an integrated amplifier
ATTENTION: Please disconnect the power cord from the AC outlet before you connect
any cables at the ASR Mini Basis.
The input sockets are located on the back panel of the main unit left and right of the ground
clamp. The input sockets are located left and right of the output sockets. The sockets for the
right channel are marked with a red ring, for the left channel with a black ring.
Please connect the output sockets of the ASR Mini Basis with high quality unbalanced
(RCA) cables to a high level input of your pre- or main amplifier.
2.2

Connecting the tone arm cable

Either Moving Magnet (MM) or Moving Coil (MC) cartridges can be connected to the
ASR Mini-Basis via unbalanced (RCA) cables.
Please connect the ground cable of your turntable to the ground clamp on the back panel of
the ASR Mini-Basis. If any hum occurs, try to route the ground cable in different manners –
your goal should be to eliminate hum completely.
3.0

Adjusting the ASR Mini-Basis

Before you do any adjustments inside the ASR Mini-Basis please disconnect
the power cord from the AC outlet.
a) to adjust the ASR Mini-Basis, please remove the cover of the main unit.
Please use a 3 mm Allen wrench to loose the four screws
b) inside the main unit you find four DIP switches to adjust the ASR Mini-Basis
c) in input resistance can be adjusted at the 10 pole DIP switches
d) the gain can be adjusted at the 6 pole DIP switches
d) the DIP switches have two different settings: „ON" or „OFF"; be sure, that the switches
are correctly set (when set correctly, you will hear a slight „klick")
c) please set the DIP switches exactly the same for the right and the left channel
3.1

Adjusting the input resistance

The ASR Mini-Basis can be perfectly adjusted to bring out the best sound out of every cartridge
you may ever use. Adjustment of the input resistance can be made from 47 kOhms for MM
cartridges to 12 Ohms for low output MC cartridges.
We know from experience that if you are using an adjustment with a lower input resistance the
ambiance is improved with limited dynamics, with a higher input resistance the overall performance
is brighter and more dynamic, but definition and precision are limited.
You can easily find out the perfect setting for you: make an adjustment and listen to the system.
The adjustment you like best is the one you should choose!
Phono-Pre-Amplifier ASR Mini-Basis MK II Page 3