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. This does not mean you must purchase the most expensive gear, just good sounding electronics, especially in the front end. Many digital products have limited depth and excess treble brightness caused by overemphasis of harmonic structure. The VR’s will enable you to easily hear the differences even between digital cables, which theoretically, should have no sonic signature! Any sonic qualities you attribute to the VR's are actually coming from the chain preceding the speakers. When using neutral driving equipment, the VR-4SR Mk2’s will be found to have virtually no sound of their own!

Since there are thousands of different combinations of components, we can not give any specific recommendations for electronics or cables. 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 building a system around the VR series of loudspeakers.

Your VR dealer should have the necessary resources to investigate any problems you may experience when setting up a world class reference system. However, if you find that you need specialized help, either in acoustical or electronic interactions not well understood by your dealer, please don’t hesitate to contact the factory by emailing your request to: albert@vonschweikert.com. A qualified engineer will assist you with any problems you are experiencing in achieving world class sound.

BRIGHTNESS: A very common problem is brightness, and is wrongly attributed to the speakers since they are the apparent source of all sound. Some of the causes of brightness are:

1.Powerline Noise. Can be ameliorated with a proper line conditioner.

2.Cable Resonance. Too many brands of different cables which interact improperly. Switch interconnects, including the digital cable, to a different brand.

3.Digital Noise. Use a powerline filter on DAC only. Many times the harshness is created by digital noise bleeding into the preamp, so don’t put the preamp on the same filter as the DAC.

4.Lack of Proper Break-in. Please break speakers in 300 hours with loud music.

5.Source Material. Unfortunately, most commercial CD’s are bright! Try using the Green Felt Pen and the various CD treatments available, they work like magic.

6.Transistor Sound. Older transistor gear is bright and lacks depth. Invest in newer gear.

7.Dirty Connections. Proper maintenance of a system requires cleaning of all RCA connectors once a month; don’t forget to clean the AC plug prongs. Tube sockets and pins need to be cleaned as well, and is a source of tube glare, along with tube deterioration itself. See your dealer for cleaners.

8.Cold Equipment. The entire system must be left on (excluding tube amplifiers) continuously for best sound quality. Cold equipment, especially transistor preamps and DAC’s, sound thin, sterile, and lack depth and dimensionality. Cold transistor amplifiers sound harsh, lacking depth. Most experts recommend leaving the equipment on to avoid the damage associated with cold turn-on, since the

VR-4SR MK2 specifications

Von Schweikert Audio is known for pushing the envelope in high-fidelity audio design, and the VR-4SR MK2 stands as a testament to this ambition. This floor-standing speaker model blends cutting-edge technology with exceptional craftsmanship, making it a standout choice for audiophiles seeking rich, immersive sound.

The VR-4SR MK2 is engineered with a multi-driver configuration, featuring a dedicated ribbon tweeter and dual 7-inch woofers. This combination is designed to provide an expansive soundstage while maintaining precise imaging. The ribbon tweeter is a hallmark of Von Schweikert's design philosophy, allowing for extended high-frequency response and a level of detail that many speakers struggle to achieve. It delivers clear and airy treble, ensuring that high notes resonate without harshness, making it perfect for both classical and contemporary music.

One of the key technologies utilized in the VR-4SR MK2 is the company's proprietary RCM (Resonant Chassis Management) system. This technology minimizes the resonance that can color sound reproduction, resulting in a cleaner and more accurate audio signal. The cabinet is also engineered to reduce standing waves, contributing to a tighter bass response and enhancing overall clarity.

In terms of build quality, the VR-4SR MK2 features a beautifully crafted enclosure that is visually appealing and functionally effective. With a sleek design available in various finishes, it can complement modern and traditional décors alike. Its robust construction not only enhances the aesthetic but also ensures durability over time.

The speaker’s sensitivity rating of 89 dB makes it relatively easy to drive, meaning it can be paired with a wide range of amplifiers without compromising performance. Whether you're using a high-powered amplifier or a more modestly powered unit, the VR-4SR MK2 maintains consistent performance across different playback levels.

Moreover, flexibility is a crucial aspect of the VR-4SR MK2. Its rear-firing ports allow for tailoring the bass response to fit different room acoustics, making it adaptable in various setups. This helps users achieve optimal sound reproduction regardless of their listening environment.

In conclusion, the Von Schweikert Audio VR-4SR MK2 encapsulates the perfect blend of innovative technology and meticulous craftsmanship. With its dynamic range, impressive imaging, and aesthetic appeal, it remains a worthy contender in the realm of high-end audio speakers, promising a captivating listening experience for music enthusiasts.