ALT Boulder 3000 SERIES Innovative technologies, intelligent construction, and unmistakable design. Over time these efforts become second nature. Boulder's 3000 Series is the summit of high performance.

ALT Boulder 3010 Preamplifier The 3010 Boulder’s engineers have proven traditional wisdom wrong and achieved something monumental. The Boulder 3010 is easily the greatest performing preamplifier in the history of the company. It’s also the most flexible preamp Boulder ever designed. Which very likely makes it the finest preamplifier.

ALT Boulder 3050 MONO Power Amplifier The Boulder 3050 Mono Amplifier, is Boulder's flagship & most potent, largest, and most luxurious product in over 30 years of sound system design. These are Boulder’s premier power amplifiers, the unmistakable peak of Boulder abilities.

ALT Boulder 3060 Stereo Power Amplifier The Boulder 3060 Stereo Amplifier contradicts conventions and redefines striving for perfection. Attempts are made to push the boundaries of what is thought to be possible. These projects involve countless hours of research, experimentation, and hard work, with each step creating small improvements.