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The H.H. Scott 280 (or Type 280) is a rare, vintage 80-watt monoblock vacuum tube power amplifier introduced in the late 1950s. As the most powerful tube amplifier produced by the iconic American manufacturer H.H. Scott, it is highly sought after by audiophiles and collectors for its "Laboratory" series build quality and warm, vintage sound. [1, 2, 3, 4, 5]Key Features and SpecificationsDesign Type: Mono-block power amplifier (requires a separate preamplifier, such as the matching Scott 121-C or 121-B, and must be purchased/used in pairs for stereo sound). [1, 2, 3, 4]Power Output: 80 watts. [1]Tube Complement: Uses 11 tubes per unit, typically consisting of:(4) EL34 (6CA7) output tubes(3) 12AX7 tubes(2) 5U4GA rectifier tubes(1) 6BX7 voltage regulator(1) 6AL5 bias rectifier [, 2]Notable Features: Features dual-level inputs, a variable damping control, and an early form of "Dynamic Power Monitor" output protection. [1]Current Status and ValueBecause of its rarity and historical significance to the golden age of hi-fi, the Scott 280 is considered an "ultimate grail" piece by vintage audio collectors. Original models command high prices on the secondary market (often thousands of dollars for a functioning pair), though unserviced units typically require complete electrical restoration—such as replacing old capacitors—to operate safely and optimally today. This was just updated where needed replacing coupling caps as well as others. It was fully tested and operates flawlessly. In great condition considering its age. You won't be disappointed. Its rather heavy so Shipping is $150
At US$2,500, this is well above the obvious used-market comparison point for a vintage Scott preamp and feels ambitious unless the unit is exceptionally original, recently serviced, and complete. Comparable Scott gear often trades much lower, while only the nicer, properly sorted examples push into this territory.
The HH Scott 280 has the kind of sonic pedigree that keeps collectors interested: big, full-bodied presentation, strong tube-era character, and real appeal if you’re pairing it with efficient speakers and an all-vintage chain. The upside here is mostly in condition and provenance—original knobs, caps, paperwork, and a clean, stable service history matter a lot. At this price, expect proof, not promises.
Independent perspective — not a price guarantee. Always verify condition, accessories and provenance before purchase.
H.H. Scott emerged as a cornerstone of American hi-fi in 1947, founded by MIT-trained engineer Hermon Hosmer Scott in Cambridge, Massachusetts. Initially housed in an old shoe factory, the company built on Scott's pre-war innovations in noise suppression to pioneer FM tuners and stereo integration, distinguishing itself from an earlier Chicago firm by adopting the H.H. initials. This heritage positioned H.H. Scott at the forefront of the post-war audio boom, shaping the golden age of high-fidelity sound.
The brand focused on premium home audio components, excelling in tube amplifiers like the legendary 299 model, groundbreaking FM stereo tuners such as the 350, and integrated receivers. Its product range emphasized engineering precision in amplification and tuning, delivering exceptional clarity and performance that defined mid-century listening experiences.
Today, H.H. Scott holds iconic status among vintage collectors and audiophiles, revered for its benchmark role in establishing hi-fi standards during the 1950s and 1960s. Though production ceased decades ago, restored originals command premium prices in the niche market for golden-era American gear, prized for their robust build and timeless sonic excellence.
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