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Pass Laboratories X2.2 Owner's Manual
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Pass Laboratories X2.2 Owner's Manual

Pass labs preamplifier owner's manual x2.2
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X2.2 Owner's Manual
Aug 10, 2006
1
X2.2 Owner's Manual

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Summary of Contents for Pass Laboratories X2.2

  • Page 1 X2.2 Owner’s Manual Aug 10, 2006 X2.2 Owner’s Manual...
  • Page 2 The X2.2 employs a patented new type of volume control that offers significantly better performance than seen before in an electronic control.
  • Page 3 Next to the inputs on the rear panel, the preamplifier offers tape inputs through both XLR and RCA connectors. This output is a direct connection to inputs 1, 2, 3, and 4 when they are selected from X2.2 Owner’s Manual...

  • Page 4: Description Of Operation

    Pass Labs product. The front panel of the X2.2 has all its control functions moderated by five momentary pushbuttons. From left to right these buttons are labeled input, tape, volume (down), volume (up) and mute.
  • Page 5 Should you wish to upgrade the 2.2’s status to a full function remote control preamplifier, this may be acomplished at the factory. With additional circuitry and new front panel the X2.2 may be turned into an X2.5 This upgrade adds an informative vacuum fluorescent display, balance control, display brightness, mono, unity function, gain setting and remote control capability.
  • Page 6 With balanced operation, the common-mode rejection of the preamp reflects the intrinsic common-mode rejection of the topology, the matching of the gain devices, and the matching of the attenuator channels. In this case we have been able to keep X2.2 Owner’s Manual...
  • Page 7 The power supply for the X2.2 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 8 Foresthill, CA 95631 Tel: 530.367.3690, Fax: 530.369.2193, www.passlabs.com © 2006 Pass Laboratories Inc. “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.

  • Page 9: Warranty Information

    In the case of safety issues, no product shall be returned to the customer without those safety issues being corrected to the most recent accepted standards. Removal or alteration of original Pass Labs serial numbers voids the factory warranty. Product with altered or missing serial numbers will be suspected as counterfeit product.
  • Page 10 Servicing: To reduce the risk of fire, electrical shock or other injuries, the user should not attempt to service the device beyond that which is described in the operating instructions. All other servicing must be referred to qualified service personnel. X2.2 Owner’s Manual...