For several decades—from well before I toured the Boulder factory in 2016—I've wanted to get a handle on the best sound the now–41-year-old company can offer. Multiple listening sessions at shows had more than hinted at excellence. But neither my time in Boulder's large, dedicated music room, which was intentionally dry, nor exposure at various hi-fi shows left me convinced that I'd heard Boulder's full potential.

My first opportunity for an in-home audition came in 2021, when I reviewed the 866 stereo integrated amplifier ($17,500 with DAC, $16,000 without). But that entry-level (by Boulder standards) product, which Senior Engineer Jameson Ludlam said was released to build brand awareness and expand the company's reach by offering "a more accessible product that provides the features we think many people are looking for with the performance they have come to expect from Boulder," only provided a peek at the excellence I expected Boulder to achieve.

So when a last-minute review cancellation opened space to review the just-released Boulder 1151 mono power amplifier ($47,000/pair), I thought, "At last!"

Munich’s annual High End show took place May 15–18 at the MOC Event Center. Considered the biggest and most important audio show in the world, High End Munich is where distributors meet with brand principals and often expand their portfolios. The show also draws throngs of European audio lovers and journalists.

Meet audio legend Richard Vandersteen at three exclusive events on the West Coast. As the founder and head engineer of Vandersteen Audio he is renowned for groundbreaking speaker designs that have helped define high-end audio for decades. He's offering audio enthusiasts a unique chance to hear from him firsthand at these special events.

I began the test series I discussed in Colloms on Cables with the first company to respond to our request for review samples: AudioQuest. Their loom comprised a pair of Robin Hood Zero loudspeaker cables; Pegasus I/C interconnects, both unbalanced RCA and balanced XLR; Blizzard AC power cables; and Vodka Ethernet cables. AudioQuest has decades of experience with audio cables, supplying a huge range from high-quality "industrial" cables—some available in bulk for custom-install applications and manufacturing—to more familiar audiophile constructions. Their designs are highly finessed and exquisitely terminated, some executed in exotic materials, particularly solid silver. An established bedrock of engineering underlies AudioQuest's cables. They're based on high-quality, nontwisted conductors, low-loss insulation materials, well-known construction geometries, and a nuanced approach to subtler aspects including conductor purity and cable-draw finish.