Our best quality sub pair for matching with the Model Seven series of speakers.

Starting at $25,500 / Pair

Prices shown do not include duty, taxes, or freight

Available Finishes

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(*) indicates upgrade finishes.

Vandersteen Audio has done its best to photograph these wood finishes on each product page, but please know that while the woods we receive from our vendors are unfailingly high in quality, no two pieces of wood are ever exactly alike. This is dictated by nature. We promise that your speakers will look gorgeous, but not that they will precisely match the photos you see on our website or on our dealers’ in-store demo speakers.

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Although initially designed as the bass section for a new statement-level speaker, the SUB NINE proved to be an outstanding solution as a stand-alone stereo sub pair mated with the Model 7 statement floor-standing loudspeaker or any high-quality speaker.  Each sub enclosure features a 13" downward-firing, slot-loaded woofer with a patented cellulose-fiber/foam cone and 400-watt amplifier.  These mono subs feature in-room-specific adjustments, including 11-bands of equalization and an adjustable Q.  This adjustability means that your system is specific to the unique bass response of your listening room, and contour and level controls mean the subs can sit in a wide variety of locations within the listening space.

SUB NINE Specifications

Subwoofer Driver

13 Inch Long-Throw Patented Foam Filling Paper Sandwich Woofer with Dual 3" Voice Coils in Patented Symmetrical Drive Motor-Driven Differentially.  Tinsel Leads Woven into Spider made of Stiff Cast Aluminum

Subwoofer Amplifier


400-Watt Linear Amplifier with Switching Power Factor Corrected Regulated Power Supply

Amplifier Power

400 watts 

Frequency Response

- 3dB @ 20Hz to 100Hz
Contour Control Continuously Adjustable form a Q = .5 to Q = 1
Level Control

Continuously Adjustable for Speaker Sensitivity of 82 dB to 92 dB

Input Terminals

(2) 5-Way binding posts that accept high-level input

from power amplifier

Dimensions (WHD)

17”w  x 20”d x 21”H and 23"w X 29"d X 32.5"h packaged (each)


108 lbs. Net and 136 lbs Gross (each)

Country of Manufacture

Made in the USA

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