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New at Audio46Feliks Audio Envy (Performance Edition) Flagship Tube Headphone Amplifier
Product SKU: Envy Performance-Oak (USA, 120V)
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Product Details
(Specifications and appearance of this product are subject to change without notice)
↓ Details provided by Feliks Audio ↓
Class A Single-ended transformer coupled, balanced amplifier, powered by the legendary 300B tubes
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Performance Edition includes :
- Full Music 300B power tubes
- UPOCC (single crystal copper) signal wiring
ENVY HEADPHONE AMPLIFIER
The Envy amplifier is a Single Ended class A headphone tube amplifier, built around the
famous 300B tubes, with transformer coupled output, designed to handle any kind of planar magnetic or dynamic headphones with an impedance range between 16 to 600 Ohm.
The amplifier is built on a solid metal chassis and finished with a natural high-quality oiled
wood. On the front panel present are headphone outputs: balanced in XLR format and
unbalanced in 6.3mm format. Other selectors include touch-sensitive stand-by button,
volume control knob, impedance selector and audio source selector.
The audio source selectors allows choices of one of the three options: unbalanced RCA
source (IN1 or IN2) and balanced XLR (IN3, left and right channels).
The touch sensitive stand-by button has a LED indicator. For a full "power off" of the
amplifier please use the physical switch on the rear panel of the amplifier, near the AC
connector.
Envy can work as pre-amplifier with a high level of maximum output (up to 10V RMS). On the rear panel there is a pair of RCA pre-amplifier outputs as well as two XLR connectors for balanced pre-amplifier output. Output voltage level is regulated with the volume knob.
GAIN SELECTION
Envy supports all ranges of planar magnetic and dynamic headphones, using the GAIN
selector on the front panel for the best match. There are 3 settings, that regulate the output gain (i.e. limiting the maximum output voltage):
1) Low (gain)- recommended for dynamic headphones with impedance from 16 to 60Ohm
2) Mid (gain)- recommended for headphones with impedance from 60 to 300 Ohm, including most planar magnetic headphones
3) Hi (gain)- recommended for demanding planar magnetic headphones and dynamic
headphones with impedance from 300 to 600 Ohm
Selecting impedance/gain range to "Mid", stereo speakers (with a recommended sensitivity >94 db) can be connected to the 6.3mm headphone output and driven with approx. 5 Watt of output power.
ELECTRICAL DESIGN
The amplifier is made using "point-to-point" technology. All wired connections are custom made from single crystal copper (UPOCC – in case of Performance edition) with a Teflon isolation. On the input there is Alps Rk27 potentiometer, followed by a two-stage pre-amplifier with CV-181 tubes and hi-end coupling capacitors. Power tubes are directly heated 300B tubes. Output transformers as well as mains transformer are custom made hi-end audio units.
The amplifier has fully automatic bias and its electrical circuit is a "zero feedback" design. The power tubes are heated with direct current (DC) with a special circuit designed to separate the tubes heating from audio path powering. Power supply for anode voltages is designed on semiconductor and based on MOFSET transistors and low-noise current sources.
On the XLR balanced inputs, symmetrical audio-grade Lundahl transformers have been
used. Audio source selection is made using high end relays (low signal relays), which are placed directly behind the input connectors, in order to limit interference and noise.
IN THE BOX
- Matched pair of driver tubes CV-181(6SN7)
- Matched pair of power tubes 300B
- AC cord
- User Manual
- Warranty Card
SPECIFICATIONS
- Power tubes: 300B
- Driver tubes: PsVane CV-181 mk2 (6SN7)
- 2x unbalanced RCA inputs (IN1, IN2)
- 1x balanced XLR input (IN3)
- Input sensitivity: 1V RMS
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Input impedance:
– For IN1 i IN2 (RCA) 100kΩ
– For IN3 (XLR) 10kΩ - 1x pair of pre-amplifier output as RCA
- 1x pair of pre-amplifier output as XLR
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Impedance selector guidance:
– LO – up to 60Ω
– MID – up to 300Ω
– HI – up to 600Ω–mnh
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Amplifier’s impedance:
– LO at 32Ω load is 3,8Ω
– MID at 100Ω load is 8,8Ω
– HI at 600Ω is 20Ω
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Frequency response:
– 8Hz÷100kHz ±3dB
– 18Hz÷40kHz ±1dB - Headphone outputs: 6.3mm and XLR
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AC voltage 50/60Hz:
– 230V version (±5%)
– 115V version (±5%) - Power consumption: 110VA
- Weight: 15,1kg (without packaging)
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Dimensions:
– 35x33x18,5cm (LxWxH) – without tubes
– 35x33x24,5cm (LxWxH) – with tubes
