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Jeff Rowland Design GroupModel One Power AmplifierThis pristine amplifier has been in use in my home since 1993 and its sound quality is still as impressive as the day it arrived! Jeff himself personally performed final calibrations, so this amp is as good as it gets. Yes, it is solid state, not tube, but the mellow, sweet sound avoids categorizing. It is very likely that your system will sound better than it ever has!I have used this amplifier since day one in differential mode (balanced) operation using pro-style XLR 3-pin locking input connectors. This is the only way to go in my opinion, as it provides the ultimate in noise rejection, though single ended RCA jack connections are also provided if your preamp does not provide balanced output. Additionally, with selectable input impedance and gain settings also on the rear, the Model One can be optimized for a wide range of preamplifiers and system configurations.The Model One is widely regarded as one of the most influential high-end solid-state amplifiers produced before 2000. Don’t let the seemingly modest 60 watts per channel fool you— the amplifier’s extraordinary circuit design allows it to deliver power far beyond its nominal rating. The amp includes a rear panel bridging switch should you wish to use it as a monoblock, and as the specs show, this amp will produce an amazing 500 W into a 2-ohm load (think multiple driver subwoofer)! I have used this amp in both stereo and bridged-mono modes over the years, and it always provided incredible performance.Jeff’s design of the Model One features a thick, beautifully machined aluminum chassis and minimalist face plate. Internally, Jeff encapsulated critical circuitry in thermally conductive epoxy for stability and longevity, and the layout is optimized to minimize noise and signal degradation.Sonically, the Model One is known for its remarkable transparency and control. Reviewers frequently highlight the amplifier’s ability to combine solid-state authority with tube-like musicality. In listening tests, the Model One is often described as delivering a smooth, grain-free midrange, extended highs, and powerful yet articulate bass. The amplifier’s high damping factor allows it to maintain tight control over loudspeaker drivers, producing well-defined low frequencies and impressive dynamic precision.Critics have also noted the amplifier’s ability to reveal subtle musical details without sounding analytical. As one reviewer observed, the amplifier delivers “a virtually ruler-flat frequency response” and exceptional signal integrity, attributes that contribute to its neutral tonal balance and accurate reproduction of complex recordings.Even after many years, the Model One remains highly respected in audiophile circles. For listeners seeking a classic amplifier that delivers both technical excellence and musical engagement, the Model One stands as a landmark achievement in high-end audio design.SpecificationsType: Solid-state stereo power amplifierPower Output:60 W per channel into 8 ohms120 W per channel into 4 ohms215 W per channel into 2 ohmsBridged Output:240 W into 8 ohms360 W into 4 ohms500 W into 2 ohmsPower Bandwidth: 0.3 Hz – 300 kHz (–3 dB)Total Harmonic Distortion: <0.035% at rated powerSlew Rate: 70 V/µsDamping Factor: >200 (20 Hz – 20 kHz)Output Current: 22 A peak continuous; 55 A peak (short duration)Input Sensitivity: 136 mV for 1 W into 8 ohmsInput Impedance: Selectable 100kΩ / 20kΩ / 600ΩGain: Typically 26 dB (dealer adjustable)Dimensions: 15 in W × 5.75 in H × 15 in DWeight: 48 lb (21.8 kg)
The Jeff Rowland Model One is a revered, mid-2000s stereo power amp known for its black anodized chassis and clean, dynamic sound that avoids the grain of cheaper rivals. At US$1,595, this listing is a strong bargain, sitting just below the 25th percentile of US$1,609 from our database of ten recent comparable USD asking prices, and well under the median of US$3,106.
This is a worthwhile buy because the Model One delivers Jeff Rowland’s signature low-noise, high-headroom performance that enthusiasts still chase for critical listening. Its all-black anodized build is durable and timeless, and at this price, it offers significant upside for anyone seeking premium American power without the three-figure markup. With no condition flags in the listing and a price that screams opportunity, it’s a clean buy for a well-loved amp.
Independent perspective — not a price guarantee. Always verify condition, accessories and provenance before purchase.
Jeff Rowland Design Group
Founded in 1984 in Colorado Springs, Colorado, Jeff Rowland Design Group emerged as a pioneering force in high-end audio engineering. The company was established with an uncompromising vision: to become the undisputed leader and innovator in precision audio reproduction. From its inception, the brand distinguished itself through cutting-edge technological advancement, most notably by being among the first manufacturers to embrace and refine class D amplification during the 1990s when the broader industry remained skeptical of the technology.
The brand's product portfolio centers on precision-engineered separates, with amplification as its cornerstone. Jeff Rowland is best known for its power amplifiers and preamplifiers, which showcase the company's obsessive focus on eliminating distortion and achieving sonic transparency. The lineup has expanded to include integrated amplifiers and digital-to-analog converters, reflecting the evolution of digital audio sources into the modern listening environment. Each component is meticulously crafted, often machined from single blocks of aerospace-grade billet aluminum—a signature manufacturing technique that defines the brand's aesthetic and structural integrity.
Jeff Rowland occupies the rarefied tier of ultra-premium, niche luxury audio. The brand commands a devoted following among serious audiophiles and has accumulated numerous industry accolades for its uncompromising sound quality and build excellence. However, the substantial cost of its products positions it firmly beyond mainstream reach, making it accessible only to collectors and enthusiasts willing to invest significantly in reference-grade audio performance. Over four decades, the company has maintained its reputation as an unqualified leader in high-end amplification design.
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