David Berning Quadrature Z Tube Monoblock Power Amplifiers; Pair

David Berning

David Berning Quadrature Z Tube Monoblock Power Amplifiers; Pair

$12,486.79

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+ $249 Shipping to contiguous US
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Current stock: 1

David Berning Quadrature Z Tube Monoblock Power Amplifiers Highlights

Product: David Berning Quadrature Z Tube Monoblock Power Amplifiers; Pair

Product SKU: 69297

Serial Number: 07423, 07424

Input Voltage: 120V

Cosmetic Description: Good cosmetic condition with some minor visible cosmetic wear including a bit of discoloration on the top cover above the tube section of both amplifiers, along with some minor scuffs and scratches on the tops, sides, and rear surfaces of both amplifiers. This pair does show a few blemishes, but is attractive overall and has been well cared for.

What is Included: Pair of amplifiers, Two Sylvania 33JV6 tubes, Six Russian 33JV6 tubes , Four Motorola 16GK6 tubes, Six TungSol 12AT7 tubes, Two Power cables

Functional Notes: Operational condition of this item is excellent, fully tested and no issues found.

Age: Unknown

# of Owners: 1

Tobacco Exposure: No

Service History: None

MSRP: $30000

Other Notes: "The Quadrature Z applies the ZH technology to a higher power application, and in particular higher output current capability. The term "quadrature" refers to the interleaving of the impedance conversion process in that parallel impedance conversions are taking place with phase overlap so that all conversion dead time is eliminated. This means that the coupling between the output tubes and the speaker in the Quadrature Z is much tighter than it is with the previous ZH products. The impedance conversion in the Quadrature Z requires doubling the number of parts that are normally needed, and thus only the most demanding applications can justify the additional cost." - David Berning

Product Specifications

Shipping: Cost to ship this item within the contiguous United States is a flat rate of $249- including packaging and insurance. For all other locations including Hawaii, Puerto Rico and Alaska, please request a quote prior to purchase. Items with factory packaging will be double boxed. When factory packaging not available re-usable shipping box with custom injected-foam mold will be used. (for all items over 10 lbs). Note that all items valued over $750 will require a signature upon delivery.

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