Boulder
Amplifiers
Preamplifiers
Best Known For
Amplifiers
/
Used Products
26
 Available
Average Price
$20,001-$40,000
Brand Popularity
126
 of 900+
Products Listed
16
Review Count
59
Founding Year
1984
Headquarters
United States
Boulder
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What's unique about the brand

Boulder is among the elite tier of hifi amplifier brands. Based in Colorado, they are recognized for their exceptionally low-noise and high-power Class A and Class AB amplifiers. They are frequently cited as "dream systems" by audiophiles and reviewers.

What reviewers are saying

We read all the reviews. Here's what reviewers feel most strongly about:

  • Boulder prioritizes a "straight wire with gain" philosophy, focusing on neutrality and avoiding any specific sonic signature, allowing the source material to dictate the sound.
  • The brand is known for a distinct industrial design, often featuring topographical contours and heatsinks that are considered aesthetically pleasing.
  • They are committed to building all components in-house, including metalwork and circuit boards, to maintain exceptional quality control and durability, resulting in products with high secondary market value.
  • Boulder's products are designed for long-term use and reliability, withstanding daily use and long periods of being left on with excellent circuit protection, although power consumption can be high.

Our favorite reviewer quotes:

  • "In the review, I added, "It was like analog on acid. Every note, every musical gesture became the most important, most profound note ever struck—until the next one."" (https://www.stereophile.com/content/analog-corner-300-boulder-2108-consolidated-audio-monster-can)
  • "The Boulder 1110/1161 are without a doubt the most competent, detailed, transparent, and neutral equipment I have personally had the pleasure of using." (https://headphonesnstuff.blog/2023/12/08/boulder-amplifiers-1110-1161-prepower-amps-full-review)
  • "Without question, this was the finest midrange from a Class A/B amplifier that I have experienced in my listening room. That includes separates and integrated amplifiers." (https://positive-feedback.com/reviews/hardware-reviews/boulder-866-integrated-amplifier)
  • "With the clarity and low noise floor on the Boulder 508 Phono Preamplifier, I could have no longer stayed in the room. As it was, I hit 100 dB or more easily and had a big smile on my face the whole time." (https://futureaudiophile.com/boulder-508-phono-preamplifier-reviewed)
  • "At the low end of the audioband, for example, the heavily accentuated kick drum in "My Queen Is Nanny of the Maroons," from Sons of Kemet's Your Queen Is a Reptile (LP, Impulse! 6736432), thumped with a tactility, tautness, and definition that made its sound as clean in its retrieval of detail as it was effortless in its delivery of amplitude." (https://www.soundstagehifi.com/index.php/equipment-reviews/1255-boulder-amplifiers-508-phono-stage)
  • "With the Boulder 866 Integrated, I heard nothing but incredible detail, noises that were captured on the recording but not part of the performance, and a fantastic string section. This isn't the style of music I usually listen to for pleasure, but I often use it as a laboratory tool to put a components performance on display." (https://audiophilestyle.com/ca/reviews/review-boulder-866-integrated-amp-r968)
Want to report a correction? Please contact us. We'd love to hear from you. Note that much of the data, recommendations, and summaries on ExtremeHiFi are researched after thousands of hours of loving labor. We archive our site's data and its pages on Archive.org and monitor for those repurposing the data. We also fingerprint data to know when text and numbers came from us.

Our interview with the brand

What are two key technological innovations or strong opinions that differ you from other brands?

What's your approach to customer support?

What are your favorite tracks for showcasing the strength of your products?

What other products pair best with yours?

From Julian's interview with
.

Lineup comparison

We think it's helpful to understand how their products compare. To learn more about each, scroll to the section above to click through to individual product pages.

Boulder 861

  • Positioning: The entry-level model in Boulder's lineup, designed for smaller spaces and efficient systems.
  • Description: Offers a compact design with 75W peak power per channel, making it ideal for small rooms or setups where space is limited.

Boulder 1161

  • Positioning: A mid-range option, offering a balance between size and power for those who need more than the 861 but less than the 1160.
  • Description: Delivers 200W peak power per channel. It shares the same operational features as the larger 1160 but in a more manageable size.

Boulder 1160

  • Positioning: A high-performance model in the 1100 series, offering significant power and advanced features.
  • Description: With 300W per channel, it features improved thermal management and a new grounding system, setting it apart from the 1161 by offering greater power and clarity.

Boulder 2160

  • Positioning: A premium model in the 2100 series, offering top-tier performance and power.
  • Description: Provides 600W per channel, making it one of Boulder's most powerful amplifiers. It features a fully-balanced design and advanced thermal management, surpassing the 1160 in power and performance.

Boulder 3060

  • Positioning: The flagship model, representing the pinnacle of Boulder's amplifier technology.
  • Description: Delivering 900W per channel, the 3060 is designed for the ultimate audio experience, with unmatched power and precision. It features a pure Class A operation and extensive use of Boulder's highest performing gain stages.
Website author headshot
Julian Shapiro
ExtremeHiFi Writer

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What other products pair best with yours?

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Our interview with the brand

What are two key technological innovations or strong opinions that differ you from other brands?

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What are your favorite tracks for showcasing the strength of your products?

What other products pair best with yours?

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ExtremeHiFi
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