PS Audio BHK Signature Preamplifier

About this product
"This is the best-sounding preamplifier I have ever designed or heard," states Bascom H. King about the PS Audio BHK Signature preamplifier. King, a legend with more than 50 years of high-end design experience and responsible for revered products from the likes of Marantz and Audeze, guided every aspect of this reference musical instrument's development – from the zero-loss vacuum-tube input stage to the resolution-perfect volume and balance controls. Featuring an oversized toroidal analog power supply that feeds 5 MOSFET-based discrete regulators, discrete parts and resistors, balanced circuit topology, a high-bias Class A MOSFET output stage, and a state-of-the-art headphone amplifier, the Stereophile Class A Recommended BHK Signature takes into account every individual element that impacts playback and optimizes them for extraordinary performance. Greater than the sum of its exceptional parts, this Colorado-made marvel presents music with beguiling openness, spaciousness, transparency, nuance, detail, and richness. You'll enjoy dynamic extension beyond 100kHz at the top end and far below 0.1Hz on the other extreme. Simply put, BHK Signature allows you to hear what you've been missing by revealing the information on your recordings that makes high-end audio an inimitable experience. BHK Signature is also the rare audio showpiece that considers the needs of the user – and makes everything simple. Home-theater bypass modes for each input, custom-input naming, effortless input switching via remote or panel button, and polarity control are all at your fingertips. DC output triggers further expand your control options, and vacuum-tube standby preserves the life of the two 12AU7 dual-triode vacuum tubes while the internal solid-state circuitry remain active. In the mood to change up the tubes? BHK Signature invites tube rolling as any 6, 7, or 12 Series tubes can be placed inside the preamplifier. For your sources, five identical balanced and single-ended inputs provide the lowest-possible distortion and highest linearity. PS Audio also strove to elevate your relationship with the volume control, which is a combination of an input-stepped attenuator coupled with control of the actual gain of the vacuum tube that results in breathtaking clarity. And the near-zero-output impedance, transformer-coupled, MOSFET and discrete headphone amp – perfect for private listening pleasure – could easily be its own product. A testament to King's legacy, BHK Signature is a virtuoso preamplifier for the ages. "PS Audio's BHK Signature preamp is one of the finest audio components I've had in my home. It didn't solve my problems, but it could sure distract me from them—and, with the right recordings, even trigger catharsis or philosophical insight." —Jim Austin, Stereophile, Class A Recommended Component All Inputs Converted to a Pure Balanced Signal BHK Signature features five identical balanced and single-ended inputs. Each of the inputs, whether single-ended (RCA) or balanced (XLR), are immediately converted to a pure balanced signal by the dual-triode vacuum tube for lowest distortion, highest-linearity performance. Input switching is accomplished through hand-selected double-pole double-throw, gold-plated relays chosen for sonic neutrality. The signals are passed directly through the multi-stage attenuator controlling both volume and balance. If the preamp is going to be part of a home-theater system controlling the main left and right channels, each input can be user-assigned as a home-theater bypass. Hand-Selected and Matched 12AU7 Tubes Serve as Gain Stage The heart of any preamplifier is both the gain stage that provides the amplification and the volume control that manages how loud or soft the music plays. Inside the BHK Signature, a pair of hand-selected and matched 12AU7 dual triode vacuum tubes provides the unit's gain. The tubes are fed from a discrete MOSFET-based high-voltage regulator on their plates, and a discrete MOSFET constant current source on their cathodes. The filament voltage is supplied from a separately regulated supply delivering a clean source of free flowing electrons.

SKU
UTRA0001107MS

Warranty
This unit comes with a 45 day Music Direct warranty.

What's Included:

Notes
8/10 condition, with a couple of light scuffs and scratches on the top of the unit. All inputs tested, and sonically perfect.

Shipping Policy
Shipping for this item is free in the CONUS. If you require shipping to Alaska, Hawaii, or Puerto Rico, please contact us first before making an offer.

Payment details
We accept all major credit cards. If you'd like to purchase this using a PayPal account, add 3% to the transaction.

Returns
This product comes with a 14 day return policy. If you're not satisfied with it's performance, let us know and we'll be happy to help. In the rare case this product comes to you defective, we'll pick up the shipping charges to bring it back here.

Contact Information
Have questions? Feel free to call us at 800-449-8333. We're happy to help!