Boulder Amplifiers 3050
Boulder’s 3050 delivers effortless high-power control with a relaxed, expansive soundstage: music swells to concert levels without hardness or strain. Jay’s Audio Lab heard extraordinary bass authority, cool-running composure and exceptional command of demanding loudspeakers, making this pure-Class-A monoblock a formidable reference for systems that demand unlimited scale.
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Nicely Roasted
Sound Quality
90/100
Build Quality
95/100
Value for Money
85/100
Pros
Exceptionally relaxed, composed presentation remains unstrained and non-aggressive at very high volume.
Powerful bass authority and an opened-up, spacious soundstage.
Drives demanding speaker loads with immense control while remaining remarkably cool in use.
Exceptional synergy reported with Magico S7 loudspeakers.
Cons
Ultra-luxury pricing makes it inaccessible for most buyers.
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What Reviewers Are Saying
SOUND QUALITY PERFORMANCE 90/100
The available review describes an exceptionally composed, expansive and powerful presentation, with an unusual sense of ease as level rises. Direct comments on fine-detail retrieval are limited, but tonal poise, spatial openness and effortless control receive emphatic praise.
Transparency Resolution
78/100
The reviewer calls the 3050 the best power amplifier he has heard and says it redefined ultra-high-end performance for him. However, the review offers little direct discussion of low-level detail, treble grain, background silence or resolution specifically.
Tonal Balance Musicality
94/100
Jay's Audio Lab repeatedly characterizes the presentation as among the most relaxed he has heard in his room. Even when played loudly, the sound is said to swell naturally rather than becoming forward or aggressive, suggesting an unusually calm and musically composed character.
Dynamics
96/100
The 3050 is praised as effortlessly unstrained at any volume, with the reviewer saying it remains collected even when pushed very hard. Its 1,500W-per-channel rating, pure-Class-A operation and stated indifference to difficult speaker loads support the report of immense headroom and control.
Soundstage Imaging
93/100
The reviewer says the soundstage opened up and links that spaciousness to the amplifier's relaxed presentation. While there is no detailed discussion of image specificity or depth layering, the reported sense of scale and openness is strongly positive.
Assessments of Build Quality, Usability, and Overall Propositions.
Build Quality
95/100
Jay's Audio Lab calls the 3050's construction unlike any amplifier he has owned, describing it as built on “another planet.” The review also reports remarkably cool operation under extreme playback levels, while the specifications document a 355-pound amplifier with pure-Class-A operation, balanced XLR inputs and exceptionally substantial power delivery.
Value for Money
85/100
At roughly $285,000-$306,000, this is an uncompromising ultra-luxury purchase. The reviewer feels its performance gap over other amplifiers he has owned is significant and commensurate with the asking price, but stops short of portraying it as a bargain or a clear value leader against similarly priced rivals.
Reviews & Sources
Professional reviews and sources for this product's Watt'n Potatoes analysis.
Online Reviews & Mentions
YouTube Reviews
Forum Mentions
No forum mentions found yet
Specifications
- Peak Power, 8 Ohms
- 2100W
- Peak Power, 4 Ohms
- 3000W
- Peak Power, 2 Ohms
- 6000W
- THD, 8 Ohms, 1500W
- 20-2 kHz: 0.0005%, 20 kHz: 0.0035%
- THD, 4 Ohms, 1500W
- 20-2 kHz: 0.0008%, 20 kHz: 0.0045%
- THD, 2 Ohms, 1500W
- 20-2 kHz: 0.0014%, 20 kHz: 0.0110%
- Equivalent Input Noise (EIN), 20kHz BW
- 1.5 μV
- Magnitude Response, 20 to 20KHz
- +0.00, -0.04 dB
- Magnitude Response, -3dB at
- 0.015 Hz, 200 kHz
- Voltage Gain
- 26dB
- Input Impedance
- Balanced: 200KΩ, Unbalanced: 100KΩ
- Common Mode Rejection (Balanced only)
- 60 Hz: 90dB, 10 kHz: 70dB
- Inputs
- 3-pin balanced (XLR)
- Output Connectors
- 2 sets of 6 mm / .250-inch wingscrews
- Power Requirements
- 220-240 VAC, 50-60 Hz, 300W nominal, 6000W at maximum output
- Weight
- Amplifier: 355 lbs. (161 kg), Base: 86 lbs. (39 kg), Shipping: 563 lbs. (256 kg)
- Amplifier Topology
- Pure Class A to full rated output
Manufacturer's Description — Boulder Amplifiers
Power corrupts. Absolute power corrupts perfectly. The Boulder 3050 Mono Amplifier, our flagship, is our most powerful, largest, and most luxurious product in over 30 years of sound system design. These are Boulder’s premier power amplifiers, the unequivocal peak of our abilities. Few people will ever see or hear them and fewer still will be lucky enough to own them. And yet because of their very existence the limits of sound reproduction have been pushed further than ever before. Even Robb Report magazine acknowledged their superiority with their Best of the Best award
At every step of the 3050s development, one fundamental objective was consistent: the pursuit of absolute perfection in sound quality. Mission accomplished.
Boulder's biggest, most powerful, and highest performing amplifier, each built to order for its new owner
Completely designed, manufactured, and hand-assembled at our facility in Louisville, Colorado
1,500 watt power output into any load means absolute clarity and control of loudspeakers
Aluminum base, cut to match the angles and footprint of both the left and right amplifiers
Intelligent microprocessor control so amplifiers can automatically set proper turn-on sequence via Boulder Link and transmit any necessary information to a Boulder preamp's display
Every 3050 contains two of Boulder's highest performing gain stages, the 99H, available only in 3000 Series products
Full Class-A biasing to maximum output, managed with an analog circuit that reduces bias current whenever possible to increase efficiency and reduce heat
120 output transistors for unequaled damping and power delivery
Four transformers per amplifier, each DC filtered, sealed in machined housings, and potted in a proprietary epoxy for silent operation
Circuit boards are installed in aluminum mounting frames precisely machined to fit the board and sandwiched with a layer of damping material
Left and right amplifier chassis are mirror-imaged and feature multiple surface angles to break up any reflected sound
Differentially balanced, instrumentation-style input circuitry for ideal electrical interface with any preamplifier or source component
Verified Dealers
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Authorized dealers for Boulder Amplifiers 3050
- 3mA Audio — online and in-store — Houston, Texas, United States (website)
- Absolute Hi End — in-store — Ormond, Victoria, Australia (website)
- American Sound — in-store — Richmond Hill, Ontario, Canada (website)
- Ana Mighty Sound — online and in-store — Paris, Île-de-France, France (website)
- Audio Advisors — in-store — West Palm Beach, Florida, United States (website)
- Audio Element — in-store — Pasadena, California, United States (website)
- Audio Gallery — online and in-store — Las Rozas de Madrid, Comunidad de Madrid, Spain (website)
- Audio Y Cine — online and in-store — Sevilla, Andalucía, Spain (website)
- Class A Audio — in-store — Notting Hill, Victoria, Australia (website)
- David Lewis Audio — in-store — Philadelphia, Pennsylvania, United States (website)
and 35 more verified dealers
