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ASR Basis Exclusive Manual

High end phono-pre-amplifier
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ASR Audio Systems Friedrich Schaefer, D- 35 745 Herborn +49 (27 72) 42 905
Table of contents of this manual
1.0
1.1
1.2
1.3
2.0
2.1
2.2
2.3
3.0
3.1
3.2
3.3
3.4
3.5
3.6
3.7
4.0
4.1
4.2
4.3
4.4
5.0
5.1
5.2
5.3
5.4
5.5
6.0
6.1
6.2
7.0
High End Phono-Pre-Amplifier ASR Basis Exclusive version 2010
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Page 1

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Summary of Contents for ASR Basis Exclusive

  • Page 1: Table Of Contents

    ASR Audio Systems Friedrich Schaefer, D- 35 745 Herborn +49 (27 72) 42 905 Table of contents of this manual Receiving the ASR Basis Exclusive Unpacking the ASR Basis Exclusive Setting up the ASR Basis Exclusive Important safety precautions Connecting the ASR Basis Exclusive...

  • Page 2: Receiving The Asr Basis Exclusive

    Use care in unpacking your ASR Basis Exclusive. Inspect it for any shipping damage and call your dealer immediately if any is found. ! Do not plug your ASR Basis Exclusive into an AC outlet if you find shipping damage ! Provided with the ASR Basis Exclusive are the following accessories:...

  • Page 3: Important Safety Precautions

    1. Before operating the ASR Basis Exclusive Phono Pre-amplifier, please read ALL operating and safety instructions. 2. Never place the ASR Basis Exclusive or the battery power supply near heat sources such as radiators, fireplaces, stove, or other appliances that produce heat. Avoid placing the ASR Basis Exclusive where it will be subject to direct sunlight or low temperatures.

  • Page 4: Connecting 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.

  • Page 5: Connecting The Separate Battery Power Supply

    Leds in the main unit stopped shining, please wait at least two hours before connecting the two units again. By this you prevent the ASR Basis Exclusive from harm through the high current that may occur when you have residual energy in the capacitors.

  • Page 6: Adjusting The Asr Basis Exclusive

    „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. the input resistance can be adjusted on Dip No 1 to 10 at the 12 fold DIP switches named „Input Resistance“.
  • Page 7 ASR Audio Systems Friedrich Schaefer, D- 35 745 Herborn +49 (27 72) 42 905 Adjustment for 200 Ohms Balanced Possible adjustments on the left right 12 fold DIP switches „Input Resistance“ The following chart shows you on the left column the value you get when you switch On the Dip switches shown in the right columns.

  • Page 8: Adjusting The Input Resistance In Unbalanced Mode

    ASR Audio Systems Friedrich Schaefer, D- 35 745 Herborn +49 (27 72) 42 905 With a higher input resistance the overall performance is brighter and has more dynamic, but definition and precision are decreased. Higher values than 500 ohms makes only small changes in the sound characteristic.
  • Page 9 ASR Audio Systems Friedrich Schaefer, D- 35 745 Herborn +49 (27 72) 42 905 Possible adjustments on the left 12 fold DIP switch „Input Resistance“ in unbalanced mode The following chart shows you on the left column the value you get when you switch On the Dip switch shown in the right columns.

  • Page 10: Adjusting The Input Capacity

    – the result is the value you have to adjust in your ASR Basis Exclusive. For balanced mode you can use the Dip switches Number 11 left and right to in increase the input capacity from 100 to 570 pF.

  • Page 11: Settings For Common Cartridges

    ASR Audio Systems Friedrich Schaefer, D- 35 745 Herborn +49 (27 72) 42 905 Settings for common cartridges MC cartridge Med MC cartridge Low Output, balanced Output, balanced 950 Ohms,+12dB 94 Ohms, +18dB MM cartridge High MC cartridge Medium Output, unbalanced...

  • Page 12: Operating The Asr Basis Exclusive

    Operating the ASR Basis Exclusive General Operation The knob on the front plate of the ASR Basis Exclusive has the following functions : position „Off“: the unit is turned off. position „Line“ („Line A“ and „Line B“) if your unit is equipped with two inputs) : the main unit is turned ON and is supplied with current out of the charging transformer.

  • Page 13: Battery Capacity Display

    ASR Audio Systems Friedrich Schaefer, D- 35 745 Herborn +49 (27 72) 42 905 Battery capacity display The capacity of the batteries can be monitored by pushing the button at the back side of the ASR Battery Power supply unit. 10 green led bars will shine when the batteries are fully charged.
  • Page 14 Electromagnetic fields. Action : Remove power supplies from the surroundings, or try to put the record player as well as the Basis Exclusive at another places. Connecting the tone arm cable with an unbalanced cable to the ASR Basis Exclusive, although the ASR Basis Exclusive is set to operate in balanced mode Action: switch the ASR Basis Exclusive to unbalanced mode (see 3.1)

  • Page 15: Battery Life Expectancy

    Like all batteries they lose their capacity of storing electrical power over the years. When the ASR Basis is able to play only one day without recharging, the batteries should be replaced. To get best results, please replace the batteries after 5-7 years of use.

  • Page 16: Function Description Of The Separate Battery Power Supply

    ASR Basis Exclusive is supplied again out of the batteries. • fully charged, the batteries can supply the ASR Basis Exclusive for approximately 60 hours. To lengthen the lifetime of the batteries please turn the main unit to the „Line“ position after approximately 24 hours of playing in “Batt”...

  • Page 17: Technical Data

    ASR Audio Systems Friedrich Schaefer, D- 35 745 Herborn +49 (27 72) 42 905 Technical Data ( Effective date: July 2010 ) Signal-to-noise-ratio: (depends on settings) with 5 mV MC input signal and 1 volt output: > 77dB with 0.5 mV MC input signal and 1 volt output: >...

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