Feliks Audio Envy | Flagship Headphone Tube Amplifier

Experience Sublime Audio with the "Future Classic" Envy from Feliks Audio, the Last Class A Balanced Amp You'll Ever Need

Handcrafted in Poland with exclusive oiled wood finishes and solid metal chassis
Multiple inputs and outputs for maximum functionality including Balanced input / output XLR connections
Developed to drive the most demanding planar or dynamic headphones with up to 8W of power
'Standard' and 'Performance' custom modifications available

Note: All of our stock is the updated version which features a "Gain" knob, rather than the "Impedance" knob pictured in the product photos.


Premium Craftsmanship, Fierce Power
New in 2022, the Feliks Audio Envy is a single-ended class-A headphone amp with a transformer-coupled output, designed to handle planar magnetic or dynamic headphone with an impedance between 16 and 600Ω.
The Envy will drive even the most demanding of these headphones with up to 8 watts of power. Its heart-stopping design is offered with extensive customization options, and there are multiple inputs and outputs (including balanced XLR) for great flexibility. Headphone impedance selection is from 60 to 600Ω.
Customization
The Standard Edition includes:

Electro Harmonix Gold 300B power tubes
Premium copper signal wiring

The Performance Edition includes:

Full Music 300B power tubes
UPOCC (single crystal copper) signal wiring

Either edition is available in Walnut or Oak finishes.

Handcrafted in Poland
Feliks Audio is a boutique manufacturer of hand-crafted tube amplifiers with over 20 years of experience developing audio solutions. All products are in-house engineered, tuned, and assembled in Lubliniec, Poland.
The Envy was designed from scratch to be a flagship, destination tube amp, and Feliks has created a masterpiece. It is built on a solid metal chassis and finished with beautifully oiled solid wood.
Quality Components and Craftsmanship
The volume control uses an Alps Rk27 potentiometer, and (x2) two-stage preamplifier uses CV-181 tubes and Jantzen Superior Z-Cap coupling capacitors. Power tubes are the directly heated 300B tubes, and the output transformers are custom-made high-end audio units made by EDIS Ogonowski. The mains transformer is also an audio-grade unit by EDIS.
Biasing is fully automatic bias, and the electrical circuits are a zero-feedback design. The power tubes are heated with DC via a special circuit separate from the audio path. The power supply for anode voltages is based on MOSFET transistors and low-noise current sources.

The XLR balanced inputs use symmetrical high-end audio grade Lundahl transformers. Audio source selection is made using high-end relays, which are placed directly behind the input connectors, in order to limit interference and noise.
The amplifier is made using "point to point" technology. All wired connections are custom-made from single crystal copper (UPOCC) with a Teflon dielectric.

Specifications


Power tubes: 300B

Driver tubes: PsVane CV-181 mk2 (6SN7)

Unbalanced RCA inputs: (x2) IN1, IN2

Balanced XLR input: (x1) IN3

Input sensitivity: 1V RMS

Input Impedance

For IN1, IN2 (RCA) 100kΩ
For IN3 (XLR) 10kΩ



Pre-Amp Outputs

(x1) pair of RCA
(x1) pair of XLR



Maximum voltage on the above outputs is 5V (RMS) at output impedance of 600Ω and THD <0.5%


Impedance selector guidance

LO: up to 60Ω
MID: up to 300Ω
HI: up to 600Ω–mnh



Amplifier’s impedance

LO: 3.8Ω at 32Ω load
MID: 88Ω at 100Ω load
HI: 20Ω at 600Ω load



Output powered measured at MID impedance setting at load of 16Ω is 5W with THD ⩽1% (maximum 8W at THD >5%)


Frequency response: 8Hz÷100kHz ±3dB | 18Hz÷40kHz ±1dB

Headphone outputs: 6.3mm and XLR

AC voltage 50/60Hz: 115V version (±5%)

Power consumption: 110VA

Weight: 34 lbs

Dimensions: 13.8" x 13" x 7.3" without tubes | 13.8" x 13" x 9.6" with tubes
Feliks Audio Extended 3 Year Warranty

In the Box

Envy Amplifier
Matched pair of driver tubes CV-181 (6SN7)
Matched pair of power tubes 300B
AC cord
User Manual
Warranty Card