The M5-HPA is a solid-state design descended directly from the flagship monoblocks. It will be substantially less expensive, but will offer an astonishing amount of the flagship's sonic magic. While the M7-HPA is designed specifically for Vandersteen's Model Seven Mk II speakers, the M5-HPA will work with a much wider variety of loudspeakers and Vandersteen powered subwoofers. To accomplish this goal, while the M7-HPA’s high-pass is fixed at 100Hz, the M5-HPA’s internal high-pass filtering is adjustable to any of the following five settings: 20Hz, 40Hz, 80Hz, 100Hz, 200Hz.

Vandersteen for years has employed high-pass filtering with powered subwoofers for the ultimate in powered-bass performance. When paired with a Vandersteen powered-bass speaker like the Quatro Wood CT the M5-HPA forms a complete powered-bass speaker system in which the amplification is perfectly optimized over the entire frequency range.

Richard Vandersteen is responsible for the M5-HPA’s overall design and architecture; the amplifier was developed and is built in partnership between Vandersteen Audio and Dean Klinefelter, a talented designer and engineer in his own right. 
Vandersteen powered-bass speaker systems are the ultimate expression of Richard Vandersteen’s philosophies on design and performance, formed over decades of industry-leading design & research & innovation.

M5-HPA Technical Attributes

Zero-Feedback Solid-State Design with Dual-Single-Ended Circuits Connected by the Speaker Load 
All Signal Transistors N-Channel Bipolars 
No Emitter Resistors
Minimal Circuit Path with only 5 Parts in Signal Path per Phase
10 Separate Power Supplies
Adjustable High-Pass Filter (20Hz, 40Hz, 80Hz, 100Hz, 200Hz)
300Watts into 4 Ohms / 150Watts into 8 Ohms
Made in the USA

Price:  $15,000/pair estimated retail price,

About Vandersteen Audio

Vandersteen Audio designs and manufactures time- and phase-correct loudspeakers and superb electronics. Every Vandersteen loudspeaker is designed to be as true and accurate to the signal received from the amplifier as possible, but with unsurpassed natural musicality and “Dimensional Purity.” All Vandersteen products are proudly designed and manufactured in the USA, in Hanford, CA.