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Designed by five-time Grammy award-winning engineer/producer and iconic studio owner/designer Allen Sides


With its exceptional acoustic design, the A125-M is equally suited to use as a mono subwoofer or LFE in surround sound applications or as a bass extension in a stereo system. Working in perfect unison with all speakers from our range, the A125-M offers all the power with outstanding accuracy.


For those who want more than just "some bass": the A225-M is the ideal addition to any PSI Audio monitoring system, granting the same trademark fidelity to the lowest frequencies - precision down to 24 Hz!


This is a highly accurate low-frequency delivery system.


Adjustable low-pass filter to set the perfect crossover frequency.


Dual 9in MSP+ hybrid drive long-throw woofers for accurate low-end frequency reproduction.


It has 2 x 25 cm woofers (top) and matching 2 x 25 cm radiators (below) mounted in back to back force-canceling mode on both sides of the cabinet. The system is driven by 2 x 900W amplifier, and controlled by Amphion’s signature filtering module with a variable-level attenuator.


With a separate LFE-channel input with +10dB sensitivity, variable crossover frequency between 35-260 Hz, a complete system consisting of the subwoofer with two back to back 10" woofers, powered by Amphion FlexAmp500, and required cabling and electronics.

MSRP: $1,995.00

major advantage of the Sub6 is its footswitch input. This allows you to connect a footswitch which cuts off the subwoofer and deactivates the high-pass crossovers on the outputs powering the monitors.


The Avalanche active sub-woofer is primarily designed to compliment our existing Rock and Boulder models, seamlessly transforming them into full range 3-way and 4-way systems and extending their low frequency performance down to an incredible 22Hz. It is also the perfect 2.1 or 5.1 partner in a surround-sound setup to The Rocks and Boulders.


The B.A.B.E. transforms the existing 3-way Boulder into a true 4-way monitoring system. With flexible soffit mount or free-standing installation options, the system can be mounted horizontally or vertically.

MSRP: $5,025.00

Active Studio Subwoofer

MSRP: $3,185.00

Active Studio Subwoofer


Studio Monitor Subwoofer 160w, 1x8.5"


7" Studio Subwoofer- Available in Matte Black, White, and Piano Gloss Black


Active Studio Monitor Subwoofer 1000w, 1x21.5


Active Studio Powered Subwoofer with 10" Long Throw Speaker, 200-Watts RMS, Tuned Enclosure and Variable Low and High Pass Filters

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