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Von Schweikert Audio VR-4SR Mk2 Instruction Manual

World-class speaker systems for audio and home theater
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Released October 2007
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Summary of Contents for Von Schweikert Audio VR-4SR Mk2

  • Page 1 Released October 2007...

  • Page 2: Table Of Contents

    CARE FOR THE FINISH....................PAGE 13 INTRODUCTION Thank you for investing in a Virtual Reality speaker system designed by Von Schweikert Audio. Used properly, the VR-4SR Mk2 will give you many wonderful years of exciting musical reproduction, closer to the emotional truth of the composer, performer, and producer’s intent. In order to fully benefit from the VR-4SR Mk2's powerful magic, please read the following instructions thoroughly.

  • Page 3: Break-In

    Do not discard the boxes or otherwise alter the contents, as the inspector will want to see the damage as you found it. Since Von Schweikert Audio has no control over the shipping companies or their damage claim policies, it is imperative that you follow the instructions from the freight company agent explicitly.
  • Page 4 SETUP 1. Please do not install the spikes until the proper placement has been determined. If you try to move the speakers around with the spikes installed, you can damage your floor and/or rip out the spikes, so please be careful and install the spikes only when you are confident that the speakers have been placed in the proper position.
  • Page 5 the best image focus and widest sound stage. However, since your taste may vary, you may well prefer the extra depth achieved with no toe in; i.e., the speakers parallel to the side walls. ON SHORT WALL: Placing the speakers on the short wall and sitting far back in the long end of the room may give you a concert hall experience if your room is large.

  • Page 6: Wiring

    CARPETED FLOORS: Install the spikes after break in – this is easily accomplished with two people, one tipping the speaker back while the other installs the spikes. Be careful not to let the M/T unit fall off the woofer module! If one person installs the spikes, remove the M/T modules before attempting to install the spikes.

  • Page 7: Bi-Amping

    WOOFER MODULE BINDING POSTS: Note that two pairs of binding posts are offered on the woofer module, and are generally connected together with the metal straps provided when only one cable is to be used. These two pairs of binding posts on the woofer module enable a “quad”...

  • Page 8: Placement

    Balancing of the volume levels when using amps with different input sensitivities can be accomplished by outboard level controls available from your dealer at very modest cost. If the amplifiers have input sensitivities which are fairly close, even if they are different brands, there will be no need for level controls.
  • Page 9 omnidirectional sound, and your ear/brain hearing mechanism will clearly know this. The VR Virtual Reality design will simulate this huge soundfield, with it’s involving depth and dimension. However, correct placement is required to achieve the best possible sound quality. Amazingly, moving the speaker only a few inches can make the difference between good sound and great sound due to the reflective properties of your room! Note that this fact is true with most high quality speaker systems.

  • Page 10: Rear Ambience Driver

    curtain of sound between them, your room’s reflections and/or seating distance is destroying the coherent sound that was engineered into the VR design. To eliminate this unwanted effect, you will need to determine whether the room’s reflections are at fault, or whether you are not in the “sweet spot.”...
  • Page 11 BASS RESPONSE TUNING BACKGROUND INFORMATION: Since enclosed rooms will affect the bass response due to standing wave formation, a woofer tuning feature has been designed into the VR series of speakers. Deep bass in the 20-40Hz range is highly desirable in a reference speaker design, since hall reverberation at low frequencies is a sonic clue to both depth and hall size.
  • Page 12 lengths that the waves take before arriving at the listening position. Although the first arriving bass wave will have flat frequency response, fractions of a second later the same waves have bounced off of the front wall, rear wall, side walls, and the floor. These reflections both reinforce and cancel the original direct wave, depending on the wave length vs.

  • Page 13: Lack Of Bass

    grapefruit into the vent and push the ball upwards, into the woofer cavity. Do this in both speakers, and if one handful is not sufficient to reduce the overall bass level, continue to place Dacron balls upwards into the woofer cavity. B).

  • Page 14: Trouble Shooting

    metal film resistor to equalize the sensitivity of the louder speaker in order to make a fair test.) Here at the factory lab, we have used several brands of electrostatic and ribbon speakers for comparison and have been consistently amazed at the results we are achieving with dynamic cone drivers! Since the VR design is quite transparent, lacking audible coloration and distortion, it is necessary to use only the finest sounding equipment available to drive the VR-4SR Mk2's.

  • Page 15: Care For The Finish

    Pledge on a soft rag and apply to the finish. Never spray wax or Windex on the veneer itself, as the overspray may stain the grill cloth and/or transducers. Happy Listening for all of us at Von Schweikert Audio!