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SMc Audio manual VRE-1 Design Highlights

Models: VRE-1

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∙Circuit Ground Connector: This binding post offers access to the system electrical ground if needed. There is normally no connection to this post.

∙Main Input Group: 4 pairs of inputs are provided, labeled 1 thru 4 (corresponding to the front panel Input Selector switch). Input 1 is a dedicated balanced input with XLR connectors, while 2 thru 4 are via RCA unbalanced connectors. I feel that this will be the most useful arrangement for most users since it is still rare for someone to have more than 1 balanced source piece. However, the fact is that all of the inputs are actually balanced - all connections go directly to the input transformers via “floating” (ungrounded) lines. If you happen to have more than one balanced source, custom XLR-to-RCA adapters are available to convert inputs 2 thru 4 to fully-balanced operation.

VRE-1 Design Highlights

Your VRE-1 is the product of many years of careful research into all aspects of preamplifier behavior - circuit topology, parts performance, physical layout, chassis materials, and power supply design. After many years in the audio field dealing with equipment that colors or changes sound, I wanted to develop a preamplifier that would impose no character of its own, acting as a transparent window onto the original music and recording. We’ve all heard that claim before…the old “straight wire with gain” once again . Well…yes! That’s correct. However, unlike past attempts sometimes characterized as “cold” and “analytical,” my development work has been guided by an unwavering commitment to deliver the warmth and soul of music as it is recorded and heard in live circumstances. What I’ve achieved is a synthesis of the best attributes of passive circuits (tonal neutrality, natural harmonic texture, freedom from noise and active-circuit distortion) with the best characteristics of active preamps (great dynamics, vivid clarity, wide-open dimensionality, outstanding bass foundation and slam) as well as the relaxed musicality of the best tube designs.

Let’s address the issue of tubes for a moment. I have experimented extensively with tubes, both in the preamp circuitry and in the power supply. In my experience, tubes simply cannot deliver the degree of tonal neutrality that I demanded for the VRE-1. My goal was not to make yet another “good sounding” preamp, but rather to deliver an absolutely transparent window onto the original recording or master tape.

My listening tests led me to an exceptionally transparent JFET buffer circuit with no gain which, when paired with my choke-filtered power supply, produces unparalleled overall performance. When I found the right set of coupling transformers (Lundahl on the input; Jensen on the output), the last pieces of the puzzle fell into place and the VRE-1 was born. Its transformers act as a kind of

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SMc Audio manual VRE-1 Design Highlights
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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.