Tuning the Stealth power link cable

Your VRE-1 uses a custom-built power-link cable from Stealth Audio Cables. This cable includes a carbon-composite sleeve that will slide along its length. The position of this sleeve has a “tuning” effect - moving it will affect the sound of your preamp to some degree. I find the effect to be significant enough to bring it to your attention. You may or may not find it meaningful in your system, but I suggest that it is worth investigating.

In my listening tests I have found that a “golden ratio” tuning adjustment seems to work well. The overall cable length is around 62” (157.5cm), and this places the sleeve at about 24” (61cm) from one end (see photo below).

As always, I encourage you to experiment. I have also found that turning the cable around (exchanging the ends) made some difference in the sound - a bit more “laid back” in one direction, and a bit more dynamically lively in the other. There is no explanation for this - the cable design is completely symmetrical (you are also free to call me crazy if you wish ;-)

Have fun, and enjoy your music.

VRE-1 specifications

SMc Audio VRE-1 is a high-performance vacuum tube preamplifier that exemplifies the art of audio engineering, with a focus on delivering exceptional sound quality and versatility. This preamplifier is designed for the discerning audiophile who values both the warmth of analog sound and the precision of modern technology.

One of the standout features of the VRE-1 is its fully balanced design, which not only minimizes noise and distortion but also enhances the dynamic range of audio signals. This configuration makes it an ideal choice for both professional studios and high-end home audio systems. The balanced architecture ensures that signals maintain their integrity over long cable runs, preserving detail and clarity.

The VRE-1 incorporates premium quality components, including hand-selected vacuum tubes that contribute to its rich, organic sound. The use of high-quality capacitors and resistors further enhances its audio performance, allowing for a wide frequency response that captures every nuance of the original recording. The carefully crafted circuit topology is designed to achieve a smooth frequency response while minimizing phase distortion, delivering a natural and engaging listening experience.

In terms of connectivity, the VRE-1 is equipped with multiple inputs and outputs, including XLR and RCA connections. This versatility allows it to integrate seamlessly into various audio setups, whether you're connecting it to a power amplifier, digital sources, or other components. The unit also features a remote control, adding convenience to the listening experience.

An additional highlight of the VRE-1 is its adjustable gain settings. Audiophiles can easily customize the output level to match their source components, ensuring optimal performance and synergy within any system. This feature is particularly beneficial for users with a diverse range of source equipment, allowing for tailored sound reproduction without compromise.

SMc Audio has also placed a strong emphasis on aesthetics, with the VRE-1 showcasing a classic design that complements any audio environment. The solid chassis and premium finish not only contribute to its durability but also enhance its visual appeal.

In conclusion, the SMc Audio VRE-1 is a remarkable vacuum tube preamplifier that combines innovative technology with high-quality craftsmanship. Its balanced design, premium components, versatility in connectivity, and customizable gain settings make it a standout choice for anyone seeking to elevate their audio experience. Whether you are a seasoned audiophile or just beginning your journey into high-fidelity sound, the VRE-1 promises to deliver an immersive listening experience that captures the essence of your favorite music.