RADAR is a price search engine. We link to the original listing — we never sell direct. Transactions happen on the source site.
I'm the original owner, purchased in 2008. Features Two pairs XLR input connectors for balanced system configurations.Three pairs RCA input connectors for unbalanced system configurations.Two pairs of parallel, high-current, balanced line level preamplifier outputs to allow driving of external amplifiers, subwoofers, zones, etc.Fully-balanced transformer-coupled inputs provide universal compatibility with other components and eliminate ground loop noise and EMI.Fully-balanced circuit topology implemented on all inputs and outputs.Bypass function allows for transparent use in combination audio/home theater systems.Regulated, high-current, linear power supply provides stable operating voltage with the lowest possible noise and distortion artifacts under all operating and line conditions.Low power consumption permits constant power-up operation to eliminate warm-up time.Optical encoder type volume control maintains quiet, trouble-free performance and accuracy over the entire lifetime of the product.Dual range volume control allows large volume level changes when knob is rotated abruptly, yet allows small, precise volume level changes when knob is rotated slowly.Six function, hand-held infrared remote transmitter.Ultra-low resonance, structurally rigid chassis, precision-machined from a solid block of aircraft grade 6061-T6 aluminum.No phono module.Concerto SpecificationsOverall Gain20 dBGain Range99.5 dB, 199 Equal IncrementsGain Resolution0.5 dB, +/- 0.03 dB Over Entire RangeFrequency Response10 Hz – 280 kHz, -3 dBMaximum Input Level15 volts RMS @ 0 dB GainMaximum Output Level13.5 volts RMSCCIF Intermodulation Distortion, 19/20 kHz90 dB, 20 Hz – 20 kHzInput Impedance40K ohms Balanced or UnbalancedChannel Separation> 90 dB, 20 Hz – 20 kHzInputs2 pair Balanced (XLR)1 pair Unbalanced (RCA)Unity Gain (Bypass)3 pair Unbalanced (RCA)Outputs2 pair Balanced (XLR) Line LevelPower Consumption7 wattsPreamplifier Weight21 lbs. / 9.8 kgOverall Preamplifier Dimensions (H) x (W) x (D)3.2” x 17.3” x 12.9” 80mm x 440mm x 328mm
Are you getting a genuinely strong used price, or just a fair one on a scarce, desirable piece? At US$3,300, this sits very close to the recent used market for the Concerto family, with one preamp sale at US$3,490 and another listing at about US$3,250, so this reads as fair-to-good rather than a steal.
That’s still attractive because the Concerto is well-regarded for refinement, control, and a very quiet, authoritative presentation that suits revealing systems. If it’s complete with remote, original packing, and shows clean cosmetics and stable operation, it’s a solid buy; the main thing to verify is that all functions work properly, since older high-end preamps are best judged by condition and provenance more than by age alone.
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.
See all Jeff Rowland listings on RADAR.
eBay UK
GB
eBay US
audio-markt.de
Good
DE
eBay UK
GB
eBay US
eBay US
