Table of Contents
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Von Schweikert Audio
World Class Reference Speaker Systems for Music and Film
~ INSTRUCTION MANUAL
SHIPPING DAMAGE................................................................................... PAGE 2
BREAK-IN.................................................................................................... PAGE 3
INITIAL SETUP............................................................................................ PAGE 3
ROOM CONFIGURATION......................................................................... PAGE 4
WIRING........................................................................................................ PAGE 6
BI-AMPING.................................................................................................. PAGE 7
PLACEMENT............................................................................................... PAGE 7
PINK NOISE TEST FOR FOCUS................................................................ PAGE 8
REAR AMBIENCE DRIVER....................................................................... PAGE 9
WOOFER TUNING/BASS RESPONSE ADJUSTMENTS......................... PAGE 10
TUNING WOOFERS FOR TUBE AMPS.................................................... PAGE 12
LACK OF BASS........................................................................................... PAGE 13
LEAD TRAP.......................................................................... PAGE 13
CHOOSING ELECTRONICS....................................................................... PAGE 13
TROUBLE SHOOTING............................................................................... PAGE 14
ROOM PROBLEMS AND TREATMENT.................................................. PAGE 15
CARE FOR THE FINISH............................................................................. PAGE 16
SPECIFICATIONS.................................................................. PAGE 16
T
hank you for investing in a Virtual Reality speaker system designed by Von
Schweikert Audio. The Virtual Reality design was perfected over a 23- year
period after several years of research at California Institute of Technology and
consists of Acoustic Inverse Replication and is driven by the Global Axis
Integration Network. Please visit our website at www.vonschweikert.com for further
technical information.
When set up correctly, the VR-4jr system can reproduce the sound of a live musical
event to an uncanny degree. However, since this model is extremely transparent, it
should be used only with electronics and cables that are transparent and neutral in tone
quality. Any coloration heard in your system is not generated by the speaker system, as
the VR-4jr is nearly a laboratory instrument. In fact, the VR-4jr is far more transparent
and neutral than most commercial recordings, although even average recordings will
allow you to hear the "magic" of the Virtual Reality Design!
Ph (760)410-1650
E-mail:albertvonn@aol.com
VR-4jr
TABLE OF CONTENTS
Fax (760)410-1655
~
Website:www.vonschweikert.com
~
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Summary of Contents for Von Schweikert Audio VR-4jr
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Page 1: Table Of Contents
Integration Network. Please visit our website at www.vonschweikert.com for further technical information. When set up correctly, the VR-4jr system can reproduce the sound of a live musical event to an uncanny degree. However, since this model is extremely transparent, it should be used only with electronics and cables that are transparent and neutral in tone quality. -
Page 2: Shipping Damage
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 3: Break-In
Von Schweikert Audio World Class Reference Speaker Systems for Music and Film BREAK-IN The VRs use proprietary drivers custom made for this system. Raw drivers are broken in for roughly 200 hours at considerable volume to reach suspension behavior’s “steady state”... -
Page 4: Room Configuration
Von Schweikert Audio World Class Reference Speaker Systems for Music and Film Starting Location: There are a number of considerations regarding initial placement, particularly involving bass response and basic imaging. In general, bass response is strengthened when the speakers are placed close to the rear or side walls, while imaging is enhanced by pulling the speakers further into the room, away from walls. - Page 5 Von Schweikert Audio World Class Reference Speaker Systems for Music and Film in the center. Your dealer can recommend tuning products he/she carries and may be able to install them. If your dealer does not offer this service, call the above- mentioned tuning companies for further information.
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Page 6: Wiring
Von Schweikert Audio World Class Reference Speaker Systems for Music and Film CARPETED FLOORS: Using the spikes after break-in and correct placement will tighten up the bass and lock in the soundstage. Make sure that you level the speakers so they don’t rock, and use the locking nuts to make sure the spikes won’t vibrate loose. -
Page 7: Bi-Amping
Von Schweikert Audio World Class Reference Speaker Systems for Music and Film BI-AMPING THE VR-4 SERIES: If the tightest bass is desired, use a solid state amplifier on the woofer modules. If you value “image float” and liquid-sounding midrange/treble response, use a tube amplifier on the M/T’s. You will not need an outboard crossover, since the crossovers in the speakers will still continue to work. -
Page 8: Pink Noise Test For Focus
Von Schweikert Audio World Class Reference Speaker Systems for Music and Film 2. The secondary waves, which are reflected from the room’s boundary surfaces. The reflected sound is delayed according to the distances involved from the speaker to the boundaries, then back to the listener. It is important for the reflected sound-field to integrate properly with the initial wavelaunch, since out-of-phase reflections will interfere with both frequency response and image focus. -
Page 9: Rear Ambience Driver
Von Schweikert Audio World Class Reference Speaker Systems for Music and Film 2. If you are not sitting in the focal point, the noise will be diffuse, without a center image. Although you will hear noise coming from the center, it will sound as diffuse as the sound coming from the speakers themselves. -
Page 10: Woofer Tuning/Bass Response Adjustments
Von Schweikert Audio World Class Reference Speaker Systems for Music and Film somewhat overly detailed, it may be possible that no rear fill is necessary nor desirable. If you hear ‘brightness’ creep into the overall balance, it may be time to back off on the Spatial Dimension Control. -
Page 11: Standing Waves And "Boom
Von Schweikert Audio World Class Reference Speaker Systems for Music and Film GENERAL TUNING INFORMATION: Both the volume level of the bass and the frequency response of the woofer system can be altered easily by several methods in order to equalize the room’s influence on the bass response. Although the VR bass... -
Page 12: Tuning Woofers For Tube Amps
Von Schweikert Audio World Class Reference Speaker Systems for Music and Film The physics of bass response are the same for the listener or the speaker when interchanged. That means that you can place one speaker where you wish to sit, then play the repeating bass line, and then walk around on the other side of the room where you want to place the speakers. -
Page 13: Lack Of Bass
180 lbs to fill both chambers, but that may be excessive). • Place the VR-4jr upside down on a soft surface, such as a towel, and remove the bottom plinth. • Poor approximately 25-50 lbs of lead into the opening. Shake the speaker until the lead settles. -
Page 14: Trouble Shooting
Von Schweikert Audio World Class Reference Speaker Systems for Music and Film Since there are thousands of different combinations of components, we cannot give any specific recommendations. Your VR dealer, however, is experienced with many types of components and should be consulted for best results. We have made an effort to seek out... -
Page 15: Room Problems And Treatment
Von Schweikert Audio World Class Reference Speaker Systems for Music and Film harsh, lacking depth. Most experts recommend leaving the equipment on to avoid the damage associated with cold turn-on, since the most wear to the electronic components in an amplifier results from the inrush of current from the wall into a cold part. Once the unit is left on, the voltages and temperatures stabilize, resulting in better sound and component life. -
Page 16: Care For The Finish
Von Schweikert Audio World Class Reference Speaker Systems for Music and Film CARE FOR THE FINISH: Only Windex and a soft cloth should be used to remove fingerprints from the wood finish (wax is not necessary and will attract dust). Use a stiff brush to dust the cloth socks, being careful not to poke the midrange or tweeters in the upper module. - Page 17 Von Schweikert Audio World Class Reference Speaker Systems for Music and Film Weight: Midrange/Tweeter 26 lbs each. Woofer 52 lbs each. System 78 lbs each. Warranty: Ten Years excluding abuse or burnt voice coils due to amplifier clipping. 930 Armorlite Drive, San Marcos, CA 92069...