Painstakingly hand-crafted
Cabinets are totally inert made of "Q-stone" cast marble
Time and phase coherent
Over 30 years of research, technical knowledge and professional experience has been invested in each & GMA design
For details visit GreenMountainAudio.com


Speakers  
Continum 3  
Calypso  
Pico Mideo  
Pico Executive  
  Aperture Center/Shelf  
  Callisto  
Vortex  

"The verdict thus writes itself: The Green Mountain Audio Continuum 3 is a bona fide,all-out assault at the time-coherent state-of-the-art..."
"I’ve heard and owned a lot of speakers in the last 22 years...and this one is the best of all."
"The most coherent three-way I've ever heard."
"These speakers have what it takes."
"I'm no longer searching."

"The £26,000 Gershman's did not stand a chance!"
"It's not your regular box speaker. Nothing else looks like it and nothing else sounds like it...but that's what Roy achieves by using advanced physics and mathematics to design his speakers...the pictures don't do it justice...I love the dynamics, clarity, and speed...performance normally associated with speakers costing three to four times more... unprecedented sound for under $10,000." --Joe Martelli, JM Sound



Slim tower hides all curves and acoustic-control devices.
Shaped cast-marble for midrange driver and tweeter.
Acoustic foam sound control,next to midrange and tweeter.
2" aerodynamic woofer port(s).
Cast-marble woofer faceplate(s).
Cast-marble midrange and tweeter housings. First order crossover circuit.


Miniature tower AND bookshelf 3-way.
3" aerogynamic woofer port.
Cast marble woofer faceplate.
Cast marble midrange and tweeter housings.
Q-Stone cast marble recipe.
Compressively-damped tweeter chassis.
First-order crossover circuit.



Eight-piece cast marble cabinet.
New adhesives for reduced marble resonance.
Cabinet shaped per C-3 mathematics.
Twin bass ports act as diffusers behind woofer.
Felt lining behind woofer sub-faceplate.
Anti-resonance-shaped base platform.
 

first-order crossover circuit
new adhesives for reduced marble resonance
Texture-Kote paint
Q-Stones cast marble recipe
two-piece, all cast-marble cabinet
controlled dispursion
marigo damping materials


 
 

Cast marble midrange and tweeter enclosure.
Q-Stone cast marble recipe.
First-order crossover circuit.
Compressively-damped tweeter chassis.
Controlled dispersion.


 

Improved crossover.
Hardwood trim.
Q-Stone cast marble recipe.
First-order crossover circuit.
Compressively-damped tweeter chassis.
Tuned,vibration-isolation feet