All
Boulder
Website:https://boulderamp.com/
Est. year: 1984
Boulder Amplifiers is a Colorado company building solid-state amplifiers, preamplifiers and digital source components, founded in 1983 by Jeff Nelson in Boulder, Colorado. It started out building professional studio electronics and moved later into high-end home audio, where it is known for very large, heavy machined chassis and an approach with no fixed price ceiling. Its first amplifier, the 500, appeared in 1984.
Range & what it's known for
Products are grouped into numbered series. The compact 800 Series covers efficient designs such as the 866 integrated amplifier, the 1100 Series includes the 1110 preamplifier with the 1151 mono and 1160 and 1162 stereo power amplifiers, the 2100 Series sits above it with models such as the 2150 mono amplifier, and the 3000 Series is the top tier. The 3050 mono amplifier, rated at 1,500 watts, is the most powerful model the company has built. A defining trait is the in-house discrete gain stage, which began as the 990 module derived from the work of Deane Jensen and later evolved into the 993, 99H and 99H2.
Who owns it and where it's made
Boulder is privately held, and the company says its ownership has stayed the same since it was founded. Jeff Nelson, self-taught in electronics, had earlier designed broadcast gear such as the Tomcat cart machine. Design, machining and assembly take place in a purpose-built 23,000 square foot factory in Louisville, Colorado, opened in 2016, with its own CNC machine shop and surface-mount circuit board production.
The lineup in this catalog
Amplifiers and DACs. The 3000 Series separates cost well above USD 100,000, while the least expensive Boulder models sit near USD 10,000.
Who it's for
Boulder is a fit for anyone driving hard-to-drive speakers who wants plenty of power and are planning a long-term system built in one place in Colorado. The 866 integrated amplifier is the simplest way in, combining preamplifier and power amplifier in one box. From there the path leads to 1100 Series separates, then the 2100 Series, and finally the 3000 Series for those with the budget and the room for very large components.
Range & what it's known for
Products are grouped into numbered series. The compact 800 Series covers efficient designs such as the 866 integrated amplifier, the 1100 Series includes the 1110 preamplifier with the 1151 mono and 1160 and 1162 stereo power amplifiers, the 2100 Series sits above it with models such as the 2150 mono amplifier, and the 3000 Series is the top tier. The 3050 mono amplifier, rated at 1,500 watts, is the most powerful model the company has built. A defining trait is the in-house discrete gain stage, which began as the 990 module derived from the work of Deane Jensen and later evolved into the 993, 99H and 99H2.
Who owns it and where it's made
Boulder is privately held, and the company says its ownership has stayed the same since it was founded. Jeff Nelson, self-taught in electronics, had earlier designed broadcast gear such as the Tomcat cart machine. Design, machining and assembly take place in a purpose-built 23,000 square foot factory in Louisville, Colorado, opened in 2016, with its own CNC machine shop and surface-mount circuit board production.
The lineup in this catalog
Amplifiers and DACs. The 3000 Series separates cost well above USD 100,000, while the least expensive Boulder models sit near USD 10,000.
Who it's for
Boulder is a fit for anyone driving hard-to-drive speakers who wants plenty of power and are planning a long-term system built in one place in Colorado. The 866 integrated amplifier is the simplest way in, combining preamplifier and power amplifier in one box. From there the path leads to 1100 Series separates, then the 2100 Series, and finally the 3000 Series for those with the budget and the room for very large components.
