Jaguar is pleased to offer EAR electronics, some of the most musical tube gear in existence. When it comes to high-end tube amplifiers, there are hundreds of brands on the market, many costing much more than EAR. However, at Jaguar we're only interested in amps like EAR or Lamm, which are created by visionary designers and stand above the others as truly unique and special. Numerous available models allow you to select one that's the best match for your system and the sound character you're going for.
The EAR HP-4 Headphone Amplifier is one of the finest headphone amplifiers in the world. It uses four 6SL7 valves, properly matched to the load through renowned transformers, to deliver nearly 1W of high quality, low distortion power into either high or low impedance headphones. The output circuit configuration uses de Paravicini’s Enhanced Triode Mode, as employed in the highly successful V20 and 859 integrated amplifiers, while the input is also transformer coupled giving the flexibility to accept balanced or unbalanced signals from the preamplifier.
For the greatest user convenience the EAR HP-4 Headphone Amplifier has its own volume control, while input signals can be independently switched through to the power amplifier for headphone and/or loudspeaker listening. As with all EAR products, reliability is paramount and the expected valve life is in excess of 10,000 hours.
The EAR HP-4 has connections for 4 pairs of headphones, with inputs selectable for Low or High Impedance, as well as Balanced or Single Ended operation.
"The HP4 made me want to touch it, to turn it on, to plug in and get lost. That’s about as much as you can ask for from any component, but the fact that this one actually can take you somewhere else shoots this amp to the very top of the design charts."
"I’ve heard amps that can do a lot of wonderful things. But I’ve never heard an amp that was clearly better than this offering from E.A.R. Different? Sure. But better? No."
"The HP 4 cannot be ignored or surpassed. To hear the E.A.R. HP 4 is to own it. I bought the review sample. It is the state of the art!"
EAR (formerly “Esoteric Audio Research”) is the brainchild of Tim de Paravicini, whose name has been associated since the 1970s with electronics of the highest fidelity. De Paravicini’s innovative techniques have not only borne fruit in products for EAR, but in designs for some of the world’s most highly regarded electronics manufacturers. Some of these designs have been continually prized—and sought—by discerning listeners for decades after their introduction.
Tim de Paravicini has also made unique contributions to the world of professional recording and mastering. Users of his tape recording systems, microphones, and other recording technology include performers Pink Floyd and Lenny Kravitz, the Altarus and Water Lily record labels, and renowned recording and mastering engineers like Robert Ludwig, Joe Gastwirt, and James Guthrie. One of the world’s highest-ranked mastering facilities, The Exchange in London, uses two playback systems in which the entire chain--from tape machines and equalizers to cutter amplifiers and monitoring equipment—is EAR-designed and built. Mobile Fidelity Sound Labs uses his LP cutting system, as well as a playback tape deck with his electronics.
EAR amplifiers are unequalled in their ability to deliver a pure rendition of the signal fed into them, free from the colorations and distortions of most amplifiers. Tim de Paravicini has been instrumental in investigating the role of ultrasonic resonances in amplifier circuits and their effect on transient response. He has also undertaken significant original research on the subjective effects of distortion. This research has not only facilitated the interpretation of amplifier measurements, but has shed light upon the correlation between measurements and sound quality. The results are easy to appreciate—EAR amplifiers are among the most accurate amplifiers ever made.