Top 10 Bravo Audio V2 Class A 12AU7 Tube Multi-Hybrid Headphone Amplifier – Headphone Amps

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1. Bravo Audio


Bravo Audio V2 Class A 12AU7 Tube Multi-Hybrid Headphone Amplifier

Bravo Audio #ad - Parallel 3. 5mm and RCA stereo inputs. Includes high-quality Shuguang 12AU7 tube. Gain control with Japanese ALPS potentiometer.
BrandBravo Audio #ad
ManufacturerBravo Audio #ad
Height3.11 Inches
Length1.73 Inches
Weight1.1 Pounds
Width3.11 Inches
Part NumberV2



Comfortable, Stereo, Great-Sounding, High Sensitivity, HIFIMAN HE400SE Stealth Magnets Version Over-Ear Open-Back Full-Size Planar Magnetic Wired Headphones for Audiophiles/Studio, Sliver

HIFIMAN #ad - Audio players. Maximum comfort for hours of listening pleasure Thanks to its newly designed adjustable lightweight headband, the HE400se remains cool and comfortable for hours, even in excessively warm weather. The reduced distortion yields pure sonic output that is accurate and full-range.

A dual-sided high-performance 3. 5mm cable is packaged with a 6. 35mm adapter for maximum compatibility with a wide range of devices. Durable connections the headphone’s drivers are protected by a newly designed casing for enhanced durability and protection from the elements. Hifiman’s advanced magnet design is acoustically transparent, dramatically reducing wave diffraction turbulence that degrades the integrity of the sound waves. Acoustically invisible stealth magnet unlike the sound waves created by a conventional magnet, the special shape of Stealth Magnets enables the waves to pass through the magnets without generating interference.

The he400se’s high sensitivity makes it the perfect match for low-voltage sources, including portable hi-res. What is a planar headphone? what are its benefits over other designs? Planar headphones feature conductive layers that cover nearly the entire diaphragm, resulting in significantly lower distortion than conventional dynamic headphones.
BrandHIFIMAN #ad
ManufacturerHIFIMAN Electronics #ad
Height7.09 Inches
Length12.05 Inches
Weight0.86 Pounds
Width10.51 Inches
Part NumberHe400SE

3. Riverstone Audio


Upgrade for 6AK5 / 6J1 / 6J1P / EF95, Riverstone Audio, Tested/Matched Pair 2 Tubes 7-Pin GE JAN 5654W Fully-Tested Vacuum Tubes, JAN 5654W Platinum Grade Pair

Riverstone Audio #ad - Unless specifically permitted by your amplifier manufacturer do NOT SUBSTITUTE FOR ANY OTHER TYPE OF 7-PIN TUBE. We reject 50% to 60% of the tubes we test. Important***** amplifier damage can occur if you substitute the wrong type of tube. Test results are provided with all tubes sold by riverstone audio.

All vacuum tubes sold by riverstone Audio will have the "Riverstone Audio" name, logo and QC label on the boxes***. We guarantee that the ge 5654w tubes selected for these matched pairs test at NOS levels at or above 4400 micro-mho and a plate current of 6. 4 ma or higher. The best warranty available in the audio tube business. The 5654w tubes are noS and were obtained from factory-sealed military surplus boxes. Tested and matched pair 2 tubes of low-noise 7-pin nib/nos ge jan 5654w vacuum tubes.

Considered one of the best of the 5654 / 6ak5 / ef95 family of tubes for audio use. 5654w tubes should only be used to directly replace 7-pin 6j1, 6ak5, 6j1p / 6j1p-eb / 6zh1p-ev, 6ak5w and ef95 tubes. We have been testing and using vacuum tubes for many years and know what it takes to select the best vacuum tubes for long life low-noise audio applications. We do not recommend purchasing vintage vacuum tubes unless actual test results are provided with the tubes. Spec.
BrandRiverstone Audio #ad
ManufacturerGE #ad
Part NumberPair (2 pcs) Matched 5654W Vacuum Tubes



AptX HD, Qudelix-5K Bluetooth USB DAC AMP with LDAC, AAC Dual ES9218p 3.5mm Unbalanced & 2.5mm Balanced Output, aptX Adaptive

QUDELIX #ad - Qualcomm qcc5124 bluetooth chipset hfp / aptx hd / avrcp ldac / aptX Adaptive / HSP / A2DP / AAC. Dual es9218p hifi dac 2. 5mm balanced 4v rmS 3. 5mm unbalanced 2V RMS. 500ma li-po battery / 6~20 hours streaming. Plastic body black with anti-scratch uv coating / 52. 8h x 26. 7w x 15. 6d mm including clip / Aluminium Clip Dark Gray / 25g. Bluetooth and usb dac 96KHz/24bit with embedded double-precision equalizer.
BrandQUDELIX #ad
ManufacturerQudelix,Inc. #ad
Height0.61 Inches
Length2.07 Inches
Weight0.06 Pounds
Width1.04 Inches
Part NumberQudelix-5K

5. Schiit


Schiit Magni Heresy 100% Op-Amp-Based Headphone Amp and Preamp

Schiit #ad - Made in USA. Utilizes super high quality parts, including a multiple paralleled output stage with feedforward.
BrandSchiit #ad
ManufacturerSchiit #ad
Part NumberSCH-07-3H-FA

6. Douk Audio


Douk Audio U3 Mini Class A Headphone Amplifier HiFi Desktop Home Stereo Amp DC5V

Douk Audio #ad - With strong drive power, easily to drive most high-impedance headphones such as: HD580/HD600/HD650/K701/K702/Q701/DT880/T70/T90/SR225/SR325/RS1e. Smooth and mellow sound, suitable for listening to vocals or string music, classic or pop music, and even with unique charm when playing rock.

Adopting original ti-ne5532 classical op amp and transistor expanding current circuit, and the sound is warm and delicate, using 1300mA large current output transistor working in class A status, with ultra-low distortion, full and mellow. Adopting innovative circuit design, the amplifier circuit can always work at a high voltage of 26V, and the background noise index is excellent. With wide frequency response extension, DC 5-20V wide input working voltage, excellent purity and transparency, excellent transient response, and good dynamic range.

Pluggable op amp socket design, convenient to upgrade different op amps and bring much DIY fun and playability for audiophiles. Mini size with exquisite appearance and most cost-effective, better sound field and details, brings big surprise for all audiophiles, easily to drive most headphones in the market, providing larger power, very suitable for home/office desltop audio system use.
BrandDouk Audio #ad
ManufacturerDouk Audio #ad
Part NumberXZ-U3

7. INFI Audio


INFI Audio Hybrid Class AB Tube Amplifier Power Amp with Bluetooth Home Audio HiFi Stereo Receiver Integrated Amp AUX Bluetooth USB Optical Coaxial for Home Theater

INFI Audio #ad - Metal cutting knob for more delicate control. If you encounter any problems, please contact our customer service team immediately. Those connection allows you to enjoy the “Tube”Sound. Exquisite materials: power amplifier used Aluminum and Metal casing which provided stronger protection.

Perfect service: 1year warranty gives you a great shopping experience. 100w hybrid tube amplifier: 35w 4 ohm / channel& 50w 8 ohm / channel. Front panel has independent Treble/ Bass/ Volume adjustment Knob. Supplied with a replaceable tubes. Connectable with cd player, tv by using RCA & AUX, Smartphone, Bluetooth, U disk, Optical and Coaxial.

Build-in 6h3n: replaceble with 6n3/56706. 3v, protection cover removable : the use of thickened steel wire meshed for the tube protection cover not only adds protection of the tubes, old version build-in 12ax7/12at7/12au7random&replaceble 12v, but also provides cooling performance and user safety. Stereo input&output: super powerful extension, pc, dvd player, multiple audio sources.
BrandINFI Audio #ad
ManufacturerINFI Audio #ad
Height5.91 Inches
Length10.24 Inches
Width13.19 Inches
Part NumberINFI Audio-IF-AD05
ModelINFI Audio-IF-AD05

8. Willsenton R8 KT88/EL34 x4 Tube Integrated AMP Power Amplifier Headphone (Black)


Willsenton R8 KT88/EL34 x4 Tube Integrated AMP Power Amplifier Headphone Black

Willsenton R8 KT88/EL34 x4 Tube Integrated AMP Power Amplifier Headphone (Black) #ad - Willsenton r8 is an integrated amplifier, it is a Power Amplifier too there is a group Power amp input, it is a Headphones amp too. Triode and ultra-linear selection are available which can be switched by the button on the amplifier.

The default matching tubes of this machine is KT88. Pure hand-made, Point to point manual welding. If you need another 2 new sets of tubes, please purchase in addition. There is a red selection button on the Back of the amp to switch. With a remote control, Vacuum tube protective cover, Fuse and an English manual. One amplifier can used wiht tube el34, so, kt88 or 6550, you can get 3 kinds of sound from different models tubes.
BrandWillsenton R8 KT88/EL34 x4 Tube Integrated AMP Power Amplifier Headphone (Black) #ad
ManufacturerW #ad
Height20.08 Inches
Length19.69 Inches
Weight66.14 Pounds
Width11.81 Inches
Part NumberWillsenton R8 KT88
ModelWillsenton R8

9. FiiO


FiiO E10K USB DAC and Headphone Amplifier Black

FiiO #ad - Usb connection — connects to your laptop via its micro USB connection, which also provides it with power. Low noise floor — the unit has an optimized low-pass filter and selectable bass boost circuit that are designed for a low noise floor in all states.

Portable design — a sleek, brushed aluminum shell and chassis allow for durable, portable use. Unbelievably low noise floor optimized active low-pass and bass circuit designs ensure lower noise floor in any situation, so your music is truly played back faithfully. Dac chip—the internal dac chip is a pcm102 and can handle pcm files up to 24-bit/96 kHz while improving audio quality via a linear filter, reduced delay and internal silence on changing tracks, and no phase shifts.

At the same time, the headphone/line/coaxial up to 24 bit/192kHz outputs make it easier to connect to other equipment. The usb type-c connector gives the device more compatibility.
BrandFiiO #ad
ManufacturerFiiO #ad
Height3.11 Inches
Length0.83 Inches
Weight0.17 Pounds
Width1.93 Inches
Part NumberE10K

10. Donner


Donner EM1 Rechargeable Portable Personal in-Ear Monitor Amplifier Analog Headphone Amplifier Stereo Headphone Earphone Amp Volume Control Audio Booster with XLR and TRS Input 3.5mm Output Jack

Donner #ad - Don't support microphone. Strong enduranceruns up to 12-hour long life Li-ion battery. Power and battery charging control with Led indicators.

Easy to carrysolid metallic belt-pack clip, High-tech, compact and portable designs for taking everywhere. Professional in-ear monitorOutstanding technical, sonic characteristics, high audio reproduction and no audio rendering for professional personal in-ear monitor. Practical interfacexlr and TRS input connector with locking mechanism, Stereo/mono source switch depending on cable connection. High power high power of headphone amplifier suited for high impedance professional headphone, make sure there is enough volume in noisy surroundings.
BrandDonner #ad
ManufacturerDonner #ad
Height1.61 Inches
Length4.09 Inches
Weight0.22 Pounds
Width1.61 Inches