Feliks Audio is a boutique manufacturer of hand-crafted tube amplifiers, with over 20 years of audio solutions development experience. We are a family business now in second generation. All our products are in-house engineered, tuned and assembled at our site in Lubliniec (Poland). We create special and unique designs, blending together technology and tradition. Originally, Feliks Audio focused mainly on custom made amplifiers tailored to client’s order. Over the time we have developed many innovative and sophisticated audio solutions. Thanks to that we have gained valuable knowledge and experience across broad range of applications. We focus on headphone tube amplifier, especially known for its OTL designs among them Espressivo, Elise and Euforia, have won many supporters across the world. Our products offer a perfect blend of passion for honest sound, great attention to technical details and beautiful finish. We have implemented strict manufacturing quality processes (CE/CCC audits proven). Design simplicity, minimizing the number of elements in projected signal path became our key approach that ensures sound produced by our devices is pure and true.
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This new flagship was designed from scratch to satisfy the most demanding head fi needs. It serves customers requiring not only immense output power (up to 8 Watts from the 300B tubes) to drive virtually any available headphones (dynamic or planar magnetic), but also provide utmost sound quality as a balanced Class A, single-ended design. The fit and finish is of course immaculate, with various natural oiled wood options available to customize the looks. If you’re looking for the best premium tube amplifier for your high-end headphones, we hope you have found your end-game.
Technical specification:
Class A Single-ended transformer coupled, balanced
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Frequency response: 8Hz÷100kHz ±3dB
Driver tubes: PsVane CV-181 mk2 (6SN7)
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Headphone outputs: 6.3mm and XLR
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2x unbalanced RCA inputs (IN1, IN2) and 1x balanced XLR input (IN3)
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AC voltage 50/60Hz 230V or 115V
1x pair of pre-amplifier output as RCA and
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Weight: 15.1kg (without packaging)
1x XLR (balanced)
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Dimensions:
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headphones with up to 8 Watts of power
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Developed to drive even the most demanding
Power tubes: 300B (standard or premium)
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amplifier, powered by the legendary 300B tubes ź
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Input impedance:
– 35x33x18.5cm (LxWxH) – without tubes
– For IN1 i IN2 (RCA) 100kΩ
– 35x33x24.5cm (LxWxH) – with tubes
– For IN3 (XLR) 10kΩ ·
(balanced)
Maximum voltage depending on
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Exclusive finish and extensive customization options
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Multiple inputs and outputs for maximum functionality
HiFiman H6SE, Susvara, Grado
– LO – up to 2V
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Balanced input / output XLR connections
GS3000e, Meze Empyrean,
– MID – up to 9V
Audeze LCD-5, Abyss Diana/1266
– HI – up to 16V
Impedance selector setting, without load:
PRODUCT PAGE
PRODUCT MOVIE
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Launched in 2021 to celebrate 20 years of making Feliks headphone amplifiers was originally planned as a short series special edition. Due to overwhelmingly positive feedback we decided to keep it as part of the regular portfolio though. Euforia AE represents pinnacle of Feliks Audio OTL technology by taking the proven Euforia amplifier concept and taking it to a new height.
Technical specification: ANNIVERSARY EDITION
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EUFORIA Special version of our flagship amplifier Euforia
Potentially best amplifier for dynamic headphones, will handle most planars
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High gloss space grey finish to celebrate the anniversary
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crystal copper wiring, top premium components)
Focal Utopia, Stellia, Meze Empyrean, Audeze LCD 1-4, Grado GS3000e
Frequency response: 7 Hz – 80 Khz +/- 3 dB (300 ohm) Power output: 280mW Amplification level: 20dB THD: 0.4 % (300 ohm, 20 mW) Optimal headphones impedance: 32 – 600 ohm including planar magnetics
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Pinnacle of OTL technology in the Feliks range (single
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– the 20th Anniversary Edition
Impedance: 100 k ohm
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Headphones output: Jack 6.3mm PRODUCT PAGE
PRODUCT MOVIE
Euforia is a beautifully handcrafted OTL that excels in both sound quality and the esthetics. It is built around two premium 6SN7 (CV181-TII) and two NOS 6AS7G tubes, supported by custom made high end transformer and high quality internals, like Mundorf and Nichicon capacitors, Dale and Caddock resistors, and delivers amazing dynamism, sound stage and level of details unusual for tube amplifiers, at the same time giving the unmistakably “tube” sound signature. Euforia's unique design allows for exceptional sound quality with a broad range of headphones – it is powerful enough to drive even demanding low impedance headphones (<32 ohm) including planar magnetics. The amplifier sports a unique CrossFeed function that
EUFORIA
allows user to control the channel separation level. Alternatively, Euforia can be used as pre-amp for both tube and transistor amplifiers.
Purest sound quality in timeless design ź
The most analytical sound signature of Feliks OTL's due
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Made of highest components – custom made
Technical specification:
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Nichicon/Mundorf capacitors, Dale/Caddock resistors
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transformers, hand made silver wiring,
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to use of pure silver internal wiring
Unique features like switchable Cross Feed – discover
Focal Utopia, Meze Empyrean,
new headphone listening
Audeze LCD 1-4, Audio-Technica ADX-5000
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Impedance: 100 k ohm Frequency response: 8 Hz – 75 Khz +/- 3 dB (300 ohm) Power output: 250mW Amplification level: 20dB THD: 0.4 % (300 ohm, 20 mW) Optimal headphones impedance: 32 – 600 ohm including planar magnetics Headphones output: Jack 6.3mm
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Elise is the warmest and most “tubey” sounding amplifier in Feliks Audio portfolio. Elise offers exceptionally dynamic sound stage and superb level of detail with the typical “tube” feel. The amplifier is a fully proprietary OTL design, hand-crafted here in Poland and built as point to point connections from high quality, carefully selected components, allowing it to deliver exceptional sound quality on a broad range of headphones. It is also a good looking piece of equipment, with its black, minimalistic and impeccably finished housing. As the amplifier is using a popular 6SN7 for driver tubes and 6AS7G (or 6080) for power tubes and has a significant power/current safety buffer, Elise has earned reputation of having huge tuning potential. Alternatively, Elise can be used as pre-amp for both tube and solid state amplifiers.
Technical specification:
Big tuning potential from “tube rolling”
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Often used as a pre-amplifier for stereo systems
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Warmest and most tubey signature of all Feliks amps
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First step into high-end
Beyerdynamic T1, Sennheiser HD 6xx/8xx, Focal Clear, ZMF range
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Impedance: 100 k ohm Frequency response: 10 Hz – 60 Khz +/- 3 dB (300 ohm) Power output: 200mW Amplification level: 20dB THD: 0.4 % (300 ohm, 20 mW) Optimal headphones impedance: 32 – 600 ohm Headphones output: Jack 6.3mm
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Many of you asked for a more affordable headphone amplifier. One that would still deliver stunning sound fidelity and don't compromise build quality. Please welcome echo - a „back to basics” OTL with enough juice to drive mid to high impedance headphones. We even given it a fully protected pre-amp functionality. All of that in a good looking chassis (real wood finish!) and supported by unmatched Feliks Audio attention to detail, customer service and reliability.
echo
Technical specification:
MKII
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OTL design for natural and linear sound signature
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Afforfdable with no corners cut on quality and finish
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First “proper” tube amplifier, good entry point to head-fi audio
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Your first proper tube amplifier
Beyerdynamic DT770/990, Sennheiser HD 6xx/8xx, Focal Clear, ZMF range (dynamics)
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Impedance: 100 k ohm Frequency response: 15 Hz – 45 Khz +/- 3 dB Power output: 350mW Amplification level: 20dB THD: 0.4 % (300 ohm, 20 mW) Optimal headphones impedance: 80 – 600 ohm Headphones output: Jack 6.3mm PRODUCT PAGE
Feliks Audio is a brand with a great tradition, recognized all over the world. If you are interested in distributing our brand, please contact us at: info@feliksaudio.pl.
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COMPANY BACKGROUND
Portfolio overview
Model
Type
ANNIVERSARY EDITION
EUFORIA
TOTL
OTL
echo
EUFORIA
OTL
MKII
OTL
OTL
Balanced/XLR Multi-source Headphone impedance
16-600
32-600
32-600
32-600
80-600
Power tubes
300B
6N13S
6N13S
6N13S
6N6P
Driver tubes
CV-181
CV-181
CV-181
6SN7
6N1P
Pre-amplifier