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Rogue Audio Hera II Line/Phono Preamp

1 Review

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Comments from Rogue Vacuum tube audio amplifiers have long been recognized by the audio community as providing significantly better sonics than solid state transistor-based designs. Unfortunately, well designed vacuum tube products are much more expensive to produce than their solid state counterparts. As a result, this superior technology has only been available to a small but fortunate group of audio enthusiasts. Enter Rogue Audio. Our amplifier designs combine the finest in tube-circuit topology with meticulously engineered circuit layout to achieve superior performance. Unflagging attention to the integrity of the audio signal path and power supplies results in truly superior designs. The most discriminating audiophile will delight in the impeccable fidelity of recordings reproduced through our amplifiers. The matchless quality of Rogue amplifiers is obvious at first glance. However, Rogue’s quality is not just skin deep. Ultra-high tolerance components, two-ounce copper circuit boards, and silver plated switches are just a few of the many features which separate Rogue products from the competition. Our amplifiers have been designed to be extremely reliable. Electronic components are rated far beyond their intended use, and only the highest quality components are incorporated into our designs. The rugged aluminum chassis are treated to resist scratching and corrosion and the machined aluminum faceplate and knobs are anodized to protect their appearance. At Rogue Audio, we believe that a truly great performing amplifier should dress the part. And from the heavy aluminum faceplate and knobs to the gold connectors in the rear, Rogue amplifiers speak to the audiophile’s aesthetic sense. Our expressive appearance is the brainchild of world class industrial designers who have created a perfect unity of form and function. The sophisticated styling and elegant lines of our amplifiers are intended to please the upscale tastes of high-end devotees. High-end amplifiers typically command stratospheric prices. Rogue Audio was founded on the belief that great amplifiers can be designed and manufactured at affordable prices. Rogue products provide outstanding value with performance that rivals the very best amplifiers at any price. Our amplifiers are engineered using a quality-by-design philosophy, and every one of our components is hand assembled and tested by highly skilled technicians and engineers. The confidence we have in our products is evidenced by a generous warranty that is certain to please today’s quality-conscious consumer. Hera II Details After more than three years of research and development, Rogue Audio proudly introduces the Hera II reference preamplifier. The Hera II ’s innovative and proprietary circuitry utilizes eight of the Russian military’s 6H30P tubes in a balanced design that stretches the bounds of modern preamplifier technology. And that technology translates into amazing detail, smoothness and refinement which has effectively redefined the level of performance that can be expected from a reference caliber preamplifier. The Hera II is feature rich yet sacrifices nothing to sonic integrity. Many of today’s high end designers make extensive use of microprocessors and the digital domain to support features that ultimately detract from the audio performance -- At Rogue Audio we eschew such technology. Every aspect of the Hera II's design is aimed at maintaining near perfect signal integrity. To that end, we have developed cutting edge circuitry that is realized using only the very finest components available today. A motorized TKD potentiometer provides ultra smooth volume control and all functional switching is done via heavy duty silver switches rather than being routed through a silicon chip. Capacitors, resistors and all other critical parts are of the highest quality as well. The two box chassis itself is a fully machined work of industrial art that provides the electrical isolation necessary for the incredibly low noise floor of the Hera. The ultra-sophisticated design also includes a phase invert button, balance bypass, processor loop, unity gain bypass and a host of other features. Our driving design goal for the Hera II was to set a new benchmark in vacuum tube preamplifier technology - we believe we have succeeded. Everything Audio Review If you play in the high-price audio world, and want a transparent analog gain device with plenty of connectivity, the Rogue Audio is about as state-of-the-art as you will find. Sure you can always spend more money, but will it sound better than the Hera II? Not likely. Try this preamp; you'll love it. Highly recommended and totally deserving of the EAN Stellar Sound Award! User Manual
  • Eight 6H30P tubes
  • Remote controlled TKD potentiometer with mute function
  • Phase invert button
  • Home theater (unity gain) bypass
  • Mono button
  • Processor Loop
  • Tape monitor
  • Balance/Balance defeat
  • Five gain settings
  • Machined aluminum two box chassis
  • 4 pairs RCA inputs
  • 2 pairs RCA outputs
  • 1 pair Balanced XLR inputs
  • 2 pairs Balanced XLR outputs
  • 1 pair unity gain inputs (cinema bypass)

  • Technical Data:
  • Main Chassis: 18.25” W x 15.25” D x 5” H
  • Power Chassis: 18.25” W x 15.25” D x 3.5” H
  • Weight 53 pounds
  • Shipping weight 60 pounds
  • Frequency response: 5Hz - 150KHz +/- 0dB, 1Hz-300KHz +0/-3dB
  • THD <0.1%
  • Gain 12dB single ended 15dB Balanced
  • Rated output 1V RMS
  • Output impedance 120 Ohms
  • Maximum Output 25V Peak
  • Ratings & Reviews

    1 review

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    Rich O'Keeffe, Berwyn Pa


    Along with my Rogue 150s the combination couldn't be better. After three or four years now i still approach this pre amp with a smile on my face. Quite as quite could be.