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X2.5 Owner's Manual
Aug 10, 2006
1
X2.5 Owner's Manual

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Summary of Contents for Pass Laboratories X2.5

  • Page 1 X2.5 Owner’s Manual Aug 10, 2006 X2.5 Owner’s Manual...
  • Page 2 The X2.5 minimizes the number of components in the signal path, and yet retains exemplary objective performance specifications. It pushes the edge of the art in exploring how much subjective quality is obtainable with a new but very elementary gain stage.
  • Page 3 The unbalanced input impedance of the preamplifier is 33 kOhms. In balanced mode, the input impedance is higher, with a differential impedance of at least 66 kOhms. X2.5 Owner’s Manual...
  • Page 4 (the up pointing arrow representing “on” and the down pointing arrow representing “off ”) Mute, Tape, Mono, and Amp. The leftmost function as selected by the two mode switches is X2.5 Owner’s Manual...
  • Page 5 When the right-front and left-front outputs of the processor are routed through input 4 of the X2.5 (with the gain of the X2.5 set for Unity gain), the volume will be under full control of the processor and the X2.5’s action will be totally transparent.
  • Page 6 The X2.5 to our knowledge is unique in that its gain may be attenuated to match the requirements of a wide variety of electronics and speakers. The gain control toggles between two settings, offset from one another by 10 dB.
  • Page 7 The use of a micro-controller allows all of the preamplifier functions to be repeatable and accurately controlled. The micro processor only controls the functions of the preamplifier. At no X2.5 Owner’s Manual...
  • Page 8 The power supply for the X2.5 consists of a toroidal power transformer delivering an unregulated +/- 45 volts which is actively regulated before feeding passive filtering and powering the constant current sources which bias the gain stages.
  • Page 9 17” W x 11.5 “D x 3.5”H Shipping Weight 28 Lbs in packing “Pass”, “pass”, “Pass Labs”, “Pass Laboratories”, Supersymmetery”, “Aleph”, and “Zen” and are all registered trademarks of Pass Laboratories, Inc., and all rights thereto are protected by law. X2.5 Owner’s Manual...
  • Page 10 Product with altered or missing serial numbers will be suspected as counterfeit product. Pass Laboratories will not repair or in any way indemnify any counterfeit or cloned product. Pass Laboratories does not offer products in voltages intended for inter- national markets either to authorized Pass Labs dealers or to third parties located in the United States or Canada.
  • Page 11 Power Cords: Pass Laboratories provides a power supply cord that meets all legislated requirements for the market in which the product was originally sold. If you choose to substitute an after-market product we urge you to choose one that is fully safety rated by the necessary local authority.

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