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Rogue Audio Hera II Reference Two-Piece Tube Preamp

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Pickup currently unavailable at SkyFi 479

Rogue Audio Hera Ii Reference Two-Piece Tube Preamp Preamplifier

Rogue Audio Hera II Reference Two-Piece Tube Preamp

SkyFi 479

Pickup currently unavailable

479 South Broad Street
Glen Rock NJ 07452
United States


The best preamp Rogue could build for under $10k with no limits in design, parts selection, and build quality. MSRP $7,495.00.

This piece was lightly used and well cared for by its previous owner with no signs of wear.  

Tested in our lab and working perfectly.  Includes a second set of the "Russian military’s 6H30P" tubes which are pretty rare. 

Comes complete with the original box, remote and all cables.  

Hera II Preamplifier
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.

Click here to read a full review!

Download product literature here 

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General Features:
- Eight 6H30P tubes
- Remote controlled stepped attenuator w/ volume and mute
- 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 sets RCA inputs
- 2 sets RCA outputs
- 1 set Balanced XLR inputs
- 2 set Balanced XLR outputs
- 1 set unity gain inputs

- 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-250KHz +0/-3dB
- THD <0.1%
- Gain 12dB single ended 15dB Balanced
- Rated output 1V RMS
- Output impedance 120 Ohms
- Maximum Output 25V Peak

Please click here for detailed specifics regarding our specialized packing process that separates us from the rest.



Original Box








Physical Condition


Working Condition


SKU: 100139