For more than twenty-five years Boulder has been building high quality audio components in Boulder, Colorado. 

With an unrivalled reputation for sound quality and construction, Boulder electronics are cherished by audiophiles all over the world. Every single component must define its category and push the limits of what is possible in audio engineering, regardless of price point.

All Boulder products are made for the reproduction of music exactly as it was performed and recorded. Boulder electronics are transparent, accurate, fast, rugged and reliable, with minimal distortion and noise, and absolutely no coloration or “sound” of their own. By designing and engineering every aspect of their equipment in-house, Boulder has set the benchmark for audio performance for over a quarter century. 
Reliability is a cornerstone and in this age of throwaway electronics, virtually every Boulder component ever shipped is still in use; indeed, most remain in the hands of their original owners. 

We have always loved the Boulder products, but ever since we met Jeff Nelson and his team we have recognised soulmates in our journey: an entire company where everyone we talked to shared the same obsessive dedication to achieving audio perfection.

Boulder 500 Series

Every audio project has to begin somewhere. When Boulder’s engineers began work on the 508 Phono Preamplifier, they began with inspiration from the absolute pinnacle of vinyl playback: the 2008 Phono Preamplifier, easily the most celebrated phono stage of all time. But that’s where the similarities end. Where the 2008 was pure excess, the 508 is pure efficiency.

508 Phono Preamplifier

The 508 Phono Preamplifier is the perfect example of real efficiency combined with the utmost in simplicity. Pure analogue phono amplification, that’s really all that is needed. As the smallest Boulder in more than two decades, the 508 packs an enormous amount of performance in a single, small chassis. The elegant chassis is carved from a single block of aluminium. The performance level is stunning. Music is presented with incredible resolution and impact, it really punches above its weight.

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Model 508

Model 508

Boulder 1100 Series

The 1100 Series is a range of truly high-end components from Boulder which push the limits of technology and provide class-leading accuracy, power and realism. The 1160 was the first component in this line and offers staggering performance at this price point, incorporating many new technologies from the 2100 and 3000 series.

Other components include a true reference-level 1110 Stereo Preamplifier and the remarkable 1108 Phono Preamplifier. Since then we have seen it become the standard by which streaming disc players are measured.

In addition, the phenomenal 1161 power amplifier has just had its debut. The new amp is a smaller 150 watt version of the 1160, and sized to be the same depth and width as the 1110. Additionally, the new amp will not require the large 32a Walther power connector, opening up more options to use one's own choice of power cable. Powerful and refined, it also shares the same casework as the 1160, with its beautifully machined front faceplate which depicts the topography of Flagstaff Mountain near Boulder, Colorado.

The reviewer praised the Boulder 1110 for its “speed, clarity, and superfast transients”, but more importantly, he added “I have not found any area that has not been considered for improvement. And, the music! Absolutely musical! I could not detect any colour being inserted by the Boulder siblings. They did not offer a warm, cool, or shaded tonal signature. Everything was by the book.” He concluded by saying, “That topographic map is there for a reason; this climbs to new heights.”

HiFi+, Subsequent Winner of Best Preamplifier 2018

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Boulder 2100 Series

We are extremely proud of this mid-category range – world famous for being so far ahead of its peers.  Again, this generation is built upon the fundamentals of the past while making meaningful strides forward in technology and design. The best components in the world are the ones that makes you focus on the music (that passes along without alteration) instead of the electronics, and to be clear the very things that make analogue playback so special are the things that the 2100 passes along without alteration.

Included in this Series is the 2108 Phono Preamplifier, the 2160 Stereo Power Amplifier, a 2150 Mono Power Amplifier, the 2120 Digital-to Analogue Converter and the 2110 Preamplifier. 

The 2108 is the most recent addition to the family offering vast improvements in sound quality over its predecessor through the use of better ground paths and planes, revised circuit topology, and lowering of the static noise floor. The increased use of surface-mount PCB technology has also yielded improvements in noise radiation, propagation delay, parasitic capacitance and the elimination of lead inductance in selected circuits. It also offers improvements in unit-to-unit quality and consistency with the added benefit of improved long-term reliability.

“In short, what you get is an unburstable, unflappable, and unfussy amplifier duo that would be conditionally stable even if you were using it to jump-start a battleship. And that defines the Boulder performance, too. This is an amplifier with depth. No musical signal – no matter how complex - will challenge it, and no loudspeaker – no matter how difficult to drive – will ruffle its feathers.” 

Alan Sircom, The Abso!ute Sound commenting on the pairing of the 2110 Preamplifier and 2160 Stereo Power Amplifier

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Boulder 3000 Series

In terms of luxury and high-performance, the 3000 Series sits at the very summit. The 3010 is easily the greatest preamplifier in the history of the Company. It’s also the most flexible preamp they have designed. The 3010 is a four-chassis preamplifier with each major portion of circuitry isolated from the others to maximize performance. In doing this, Boulder has eliminated crosstalk and achieved a -102 dB noise floor for the preamplifier. Completing the Series is the 3060 Stereo Power Amplifier and the 3050 Mono Power Amplifier.

“These amplifiers deliver unbelievably tight pace and texture in the low-frequency register, regardless of volume level, again giving a feeling of being in the performance instead of just listening to it. Acoustic bass is fleshed out perfectly, with just the right amount of resonance and texture, while electric bass growls as it should.

I’m continually amazed by the new experiences these amps deliver—from the Beatles to Metallica. As Ella Fitzgerald and Louis Armstrong run through “Isn’t this a Lovely Day,” I feel as if the room’s walls are missing and the performers are walking around me as they sing.

This is not a case of paying three times as much for a minuscule increase in performance; this is a mind bender. You’ll never be the same”

Tone Audio - 3050 Monoblock Amplifiers

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Boulder is one of the last remaining ‘high-end’ electronics manufacturer in North America to engineer and produce all aspects of its products in-house. Join us on the journey to find out for yourself why Boulder can take your music listening experience to a whole new level. For Boulder it is never enough to simply fill a market niche, to create a product solely for the purpose of giving someone something expensive to buy. Every single Boulder must define its category and push the limits of what is possible in audio engineering, regardless of the price.