Montana Speakers



PBN has developed a complete series of speakers incorporating the same innovative design. Their breathtakingly real performance and deep aural conviction have created, according to critics, the essence of “thereness”… that seemingly magical capacity to create a visceral sense of presence.

The M! series ranges in size from the seven-foot Master Reference hybrid MR!777AT with two superlative 18” woofers to the scaled-down M1!5 with twin 12” woofers. The original M2!5 sensation, with dual classic 15” woofers wedded perfectly with a mid-range/tweeter compression horn driver and the just-introduced M3!5 with a 18” woofer, midrange, and unique ribbon tweeter complete the line.

The M Series – now expanded to give you a perfect choice for your listening environment. If you are ever afforded an opportunity to audition one of the M! Series in performance, do not pass it up.


Each Innerchoic cabinet is built with a precision-cut series of layered, ultra-dense MDF Ranger Board sections. The proprietary round-ribbed interior pattern functions literally as an internal anechoic chamber. That’s why we’ve named it the “Innerchoic” design. It absorbs waffling, reflective sound waves while modulating a soundscape unheard until now. With the addition of the Super League Series, now for the first time featuring Innerchoic cabinet architecture, we offer seven models to choose from.


The amazing success of PBN’s Innerchoic© series has led, quite naturally, to this third generation of our celebrated Super League series – and the most advanced of the Montana line. The power, poise and exhilarating sense of perfection achieved by this trio of über-speakers has been elevated to even higher levels of performance – with an inside-out transformation to our Innerchoic “sound chamber” design.

The original challenge, both met and surpassed by the Super League system, was to deliver impeccably refined audio within the unforgiving realities of spacious venues. They should “go big” without losing the dexterity of “going small” – a feat few others have attempted, let alone achieved.

And now, with the full integration of PBN’s patented Innerchoic cabinet architecture, the majestic sweep of the sculpted, balanced sound unique to the classic Super League is rendered with even greater purity.