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Von Schweikert Audio
World Class Reference Speaker Systems for Music and Film
VR-4jr
~ INSTRUCTION MANUAL ~
TABLE OF CONTENTS
SHIPPING DAMAGE................................................................................... PAGE 2
BREAK-IN.................................................................................................... PAGE 3
INITIAL SETUP............................................................................................ PAGE 3
ROOM CONFIGURA
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Von Schweikert Audio World Class Reference Speaker Systems for Music and Film Since sound quality was our primary target, we used live musical instruments fed into the speaker to assess its design target during the final stages of “voicing” the system. When correctly installed, the VR-4 Series 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 fr
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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” prior to actual loudspeaker development. By contrast, production units receive 12 to 24 hours of break-in. Since the fluidity and dynamic range of the speaker depends on free movement, you may notice a sli
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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. With your VR loudspeakers and the following suggestions you
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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. CUBIC ROOM DIAGONAL LOCATION: Rooms with mathematically repeating dimensions (like 16 x 16 x 8', for instance) will have a midbass/lower midrange ‘loading’ effect due to the s
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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. WIRING The best sound staging and transparency from the VR-4 series results from bi-wiring the speakers, but if a bi-wire set is not initia
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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. Although it is true that louder output can be obtained by high-pass f
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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 fo
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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. Even though the speakers will image music when set up like this, the imaging will be diffuse and non-localized. There won’t be enough ‘body’ to the images, and it will be
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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. In a room that’s fairly dead, with soft sounding gear, it may be necessary to use the Spatial Dimension control fully on. BASS RESPONSE TUNING BACKGROUND INFORMATION: Since enclosed
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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 systems measure ruler flat in larger rooms that have good dimensional ratios, (using both gated sine wave and maximum length sequence FFT signals), smaller room
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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. When you find a neutral zone, where the bass is not too loud nor too soft, that’s where you place that particular
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Von Schweikert Audio World Class Reference Speaker Systems for Music and Film power. In these cases, it will be necessary to move either the speaker position or the listening position in order to optimize the response. By playing a recording with a repeating bass line, try walking around the room until you find the places where there is apparent bass. It will be necessary, in some cases, to reposition the speakers in order to allow the room to boost the bass by using th
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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 dealers who are experienced in the art of component matching and have full trust in their abilities, so please use their expertise when b
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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. If in doubt, check with the ele
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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. SPECIFICATIONS Woofer System: Twin 6.5" Extreme-duty drivers with aerospace composite cones and long- throw Low Disto
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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. 17 930 Armorlite Drive, San Marcos, CA 92069 Ph (760)410-1650 Fax (760)410-1655 E-mail:albertvonn@aol.com ~ Website:www.vonschweikert.com
