COPPER

A PS Audio Publication

Issue 17 • Free Online Magazine

Issue 17 MY TURN

Boulder Amplifiers

Boulder Amplifiers

Somewhere back in the last century, from around 1976 to 1983, a California company called Pacific Recorders & Engineering (PR&E) designed and built tape cartridge machines for radio stations. One PR&E model, the Tomcat (an acronym for Theory Optimized Microprocessor Controlled Audio Transport, if you can believe that), was said to be more durable and have better  S/N and better sound quality than anything else on the market. Cart machines were used for easy playback of commercial spots, as well as for music.

PR&E branched out into amplifiers, microphone preamps and mixing boards for broadcast and recording applications, and their reputation for high performance and durability spread. Occasionally, audiophiles would stumble upon a PR&E amp, and again, the company’s reputation spread.

As have zillions of Californians before him and since, company head Jeff Nelson relocated to Colorado in 1984. The company was housed in an old farmhouse in Superior, south of Boulder, Colorado, and the company was renamed Boulder Amplifiers.

Soon thereafter, the company’s focus shifted from pro gear to high-performance consumer products. A pro-model amp, the 500, featured the standard pro-style indicators and controls on its front panel. The 500 AE–”Audiophile Edition”—deleted the gewgaws and had only a power switch.

For over 30 years now, Boulder  has designed and built indestructible amps, preamps, and other components. Products feature impressive, heavily-machined casework that is all done in-house, a rarity these days. The impression given by their products is a sense of being built for maximum performance and durability with cost no object.

The company’s new, purpose-built  23,000 square foot facility in Louisville, Colorado will allow the company to pursue even bigger/better/badder projects. It’ll be interesting to see what they come up with!

Special thanks to Rich Maez for the tour.

IMG_9470
Boulder Amplifier's new facilities
IMG_9471
CNC milling machines used to build Boulder Amplifier chassis
IMG_9476
Rich Maez, Director of Sales and Marketing, shows some finished metalwork
IMG_9478
Finished amplifier heat sinks
IMG_9482
The oversized bead-blast chamber where metalwork receives a satin finish
IMG_9486
Assembly area
IMG_9489
Massive 3060 amp on the engine stand used for moving the largest models
IMG_9490
Inside the 3060
IMG_9493
Other amplifiers awaiting final assembly and test
IMG_9495
Auto insertion pick and place component machine for PCB assembly
IMG_9496
Wave solder machine to solder PC boards

More from Issue 17

View All Articles in Issue 17

Search Copper Magazine

#233 A Report From The Total Hi-Fi Experience Show SoCal 2026 by B. Jan Montana Aug 03, 2026 #233 Bluegrass Meets Country, Folk, Jazz and More in All That We Carried by The Squid City Slingers by Frank Doris Aug 03, 2026 #233 Corey Glover and One Tribe Nation: A Variegated Musical Collective by Ray Chelstowski Aug 03, 2026 #233 Excursions with Clive: The Late Clive Davis, A Personal History by Wayne Robins Aug 03, 2026 #233 AI, Art, and Music: A Conversation With Synthography Art by Joe Caplan Aug 03, 2026 #233 New American Symphonies: A Rediscovered Gem and a Vital Contemporary Work by Frank Doris Aug 03, 2026 #233 The Vinyl Beat: Genesis, the Dave Clark Five, Antonio Carlos Jobim and More by Rudy Radelic Aug 03, 2026 #233 How to Play in a Rock Band, 26: When It's Time to Record Your Music by Frank Doris Aug 03, 2026 #233 More From T.H.E. Show 2026, and the People Who Made it Happen by Harris Fogel Aug 03, 2026 #233 Underappreciated Artists, Part Three: Icehouse by Rich Isaacs Aug 03, 2026 #233 The Surprisingly Rich and Varied Music of Somalia by Steve Kindig Aug 03, 2026 #233 A Remarkable Discographic Legacy: The LP Recordings of the Basel Symphony Orchestra by Stephan Haberthür Aug 03, 2026 #233 From The Audiophile’s Guide: The Importance of Loudspeakers by Paul McGowan Aug 03, 2026 #233 From Swimming Pool to New Listening Room: A Conversation with Norman Varney of AV RoomService by Gilles Laferrière Aug 03, 2026 #233 PS Audio in the News by PS Audio Staff Aug 03, 2026 #233 Audio Jewelry by Peter Xeni Aug 03, 2026 #233 Enrich Your Life by Frank Doris Aug 03, 2026 #233 The Searcher by James Schrimpf Aug 03, 2026 #232 What came first: Art or Music? A Conversation With Artist Jose Acosta by Joe Caplan Jul 06, 2026 #232 Blow By Blow: The Jeff Beck Story: An Insightful Book About a Guitar Icon by Ray Chelstowski Jul 06, 2026 #232 Creed Over Camaraderie? by B. Jan Montana Jul 06, 2026 #232 Chronicles of a Sound Pilgrim at the 2026 Montreal Audiofest by Hugues Morin Jul 06, 2026 #232 The Vinyl Beat: Summer Grooves by Rudy Radelic Jul 06, 2026 #232 Hibbing Hillbilly Dylan's Acoustic Rock by Wayne Robins Jul 06, 2026 #232 Quad Quads and Plasmatronics Tweeters: An Extraordinary System Comes to Life by Frank Doris Jul 06, 2026 #232 In Praise of Live Music, Once Again by Ted Shafran Jul 06, 2026 #232 Allnic Audio’s L-9000 Preamplifier: Design and Engineering Innovation by Howard Kneller Jul 06, 2026 #232 “Best Of” Lists and Rage Bait: Enough Already by Frank Doris Jul 06, 2026 #232 Quick Takes: Bud Shank, Paulo Almeida, Jakob Dreyer, Tim Eriksen and Peter Irvine by Frank Doris Jul 06, 2026 #232 My Impressions of AXPONA 2026, Part 2 by Frank Doris Jul 06, 2026 #232 How to Play in a Rock Band, 25: Encounters With Famous Musicians, Part Three by Frank Doris Jul 06, 2026 #232 Budgets, and Systems From Small to Outrageous by Paul McGowan Jul 06, 2026 #232 PS Audio in the News by PS Audio Staff Jul 06, 2026 #232 Hand It Over by Frank Doris Jul 06, 2026 #232 Difference of Opinion by Peter Xeni Jul 06, 2026 #232 Wabi-sabi Tree by James Schrimpf Jul 06, 2026 #231 Piano Prodigy Jude Kofie Releases His Debut Album On Octave Records by Frank Doris Jun 01, 2026 #231 Underappreciated Artists, Part Two: City Boy by Rich Isaacs Jun 01, 2026 #231 Music and the Art of Creation: Talking With Saxophonist Rob Scheps by Joe Caplan Jun 01, 2026 #231 How to Play in a Rock Band, 24: Further Adventures at the 2026 Montauk Music Festival by Frank Doris Jun 01, 2026 #231 Courtney Barnett: Creature of Habit by Wayne Robins Jun 01, 2026 #231 Angine de Poitrine: Interstellar Guitar Rock Saviors Headed for Late-Night TV Pop Stardom? by Mark Lepage Jun 01, 2026 #231 My Impressions of AXPONA 2026, Part One by Frank Doris Jun 01, 2026 #231 2026 La Jolla Concours d'Elegance: Another Aesthetic Feast by B. Jan Montana Jun 01, 2026 #231 Country Music Icon Jo Dee Messina’s Bridges: A New Beginning by Ray Chelstowski Jun 01, 2026 #231 The Luxury Dispatch Hosts a Video Podcast With Ken Kessler by Ken Kessler Jun 01, 2026 #231 The Vinyl Beat: Tracking in the Motor City by Rudy Radelic Jun 01, 2026

Boulder Amplifiers

Boulder Amplifiers

Somewhere back in the last century, from around 1976 to 1983, a California company called Pacific Recorders & Engineering (PR&E) designed and built tape cartridge machines for radio stations. One PR&E model, the Tomcat (an acronym for Theory Optimized Microprocessor Controlled Audio Transport, if you can believe that), was said to be more durable and have better  S/N and better sound quality than anything else on the market. Cart machines were used for easy playback of commercial spots, as well as for music.

PR&E branched out into amplifiers, microphone preamps and mixing boards for broadcast and recording applications, and their reputation for high performance and durability spread. Occasionally, audiophiles would stumble upon a PR&E amp, and again, the company’s reputation spread.

As have zillions of Californians before him and since, company head Jeff Nelson relocated to Colorado in 1984. The company was housed in an old farmhouse in Superior, south of Boulder, Colorado, and the company was renamed Boulder Amplifiers.

Soon thereafter, the company’s focus shifted from pro gear to high-performance consumer products. A pro-model amp, the 500, featured the standard pro-style indicators and controls on its front panel. The 500 AE–”Audiophile Edition”—deleted the gewgaws and had only a power switch.

For over 30 years now, Boulder  has designed and built indestructible amps, preamps, and other components. Products feature impressive, heavily-machined casework that is all done in-house, a rarity these days. The impression given by their products is a sense of being built for maximum performance and durability with cost no object.

The company’s new, purpose-built  23,000 square foot facility in Louisville, Colorado will allow the company to pursue even bigger/better/badder projects. It’ll be interesting to see what they come up with!

Special thanks to Rich Maez for the tour.

IMG_9470
Boulder Amplifier's new facilities
IMG_9471
CNC milling machines used to build Boulder Amplifier chassis
IMG_9476
Rich Maez, Director of Sales and Marketing, shows some finished metalwork
IMG_9478
Finished amplifier heat sinks
IMG_9482
The oversized bead-blast chamber where metalwork receives a satin finish
IMG_9486
Assembly area
IMG_9489
Massive 3060 amp on the engine stand used for moving the largest models
IMG_9490
Inside the 3060
IMG_9493
Other amplifiers awaiting final assembly and test
IMG_9495
Auto insertion pick and place component machine for PCB assembly
IMG_9496
Wave solder machine to solder PC boards

0 comments

Leave a comment

0 Comments

Your avatar

Loading comments...

🗑️ Delete Comment

Enter moderator password to delete this comment:

✏️ Edit Comment

Enter your email to verify ownership: