Violectric HPA V280 Headphone Amplifier

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The HPA V280 was developed to enable ultimate transmission quality for low, medium and high-impedance headphones. These may also be balanced versions

Due to its specific, variable, low-noise and low-distortion circuit design especially optimised for dynamic headphones, the HPA V280 fulfils even highest demands.
Like his "bigger brother" HPA V281 also HPA V280 uses the famous V200 amp technology to enable the typical uncolored but smooth sound signature.

Because of low internal gain the self generated noise from the amplifer is not audible.

Through balanced amp technology it is best suited for high impedance headphones.
Over 95 % of all headphone amplifiers in the market dont offer half the voltage.

because of powerful amplifiers able to deliver much more current a headphone needs.
Therefore best suited for low impedance headphones and even magnetostatic cans !!

through lowest output impedance.
Therefore best suited for full control even over critical headphones with the garantee to have flatest possible response.


-  Balanced inputs with gold-plated Neutrik XLR connectors
Unbalanced inputs with gold-plated ALPS RCA connectors
switchable unbalanced outputs with RCA connectors 
-  optional digital input (USB or Coax or Optical)96 or 192 kHz
PRE-GAIN = switchable input gain in five steps
Independent-channel design
ALPS RK27 High-Grade volume control 
High-Quality op-amps in the signal path
High-quality MKP capacitors in the signal path
0.1 and 1% metal film resistors throughout the unit
4 amplifiers with V200 technology
 1 balanced headphone output, Neutrik 4-pin, gold plated
2 single ended silver-plated Neutrik headphone outputs
Relay-based headphone output cutoff
-  2 large t
oroidal transformers
Large filtering capacitors in the power supply
-  Switchable ground
Rugged aluminium case with Nextel coating
-  Solid, laser-engraved aluminium front panel

  • The four built-in amplifiers provide balanced operation of headphones
  • Connection is made via 4-pin Neutrik XLR connectors.
  • Two “standard” headphones may be connected via 1/4" jacks on the front panel.
  • This amp may be equipped with one of six different digital inputs:
  • Coaxial, Optical or USB with either 24/96 kHz or 24/192 kHz
  • Case and back panel are made of aluminium and are Nextel coated.
  • The 8 mm frontpanel is black or silver anodized. The labeling is laser engraved.

Technical Data

Balanced Inputs: 2, gold plated XLR connectors
Unbalanced Inputs: 2, gold plated RCA conncetors
Impedance: 10 kohms
Unbalanced Line Outputs:  2, gold plated RCA connectors
Amplifier Channels: 4 (Stereo Push-Pull)
Nom. input level: + 6 dBu
Amplifier Gain: +8 dB
... with PRE-GAIN: -4 / +2 / +8 / +14  / +20 dB
Frequency range: 0 Hz ... 60 kHz (-0,5 dB)
Output Impedance: 0,165 Ohms
Damping Factor @5 0 Ohm: 300
Dynamic range: > 129 dB (A-wtd)
Noise: < -97 dBu (A-wtd)
THD+N: < -102 dB @ 10V in 100 Ohms (1W)
< -99 dB @ 4V in 32 Ohms (0,5W)
Crosstalk: < -115 / -105 dB (@ 1 / 15 kHz)
Max. output level (bal. mode): > 32,9 Veff in 600 ohms = 1800 mW
> 28,2 Veff in 300 ohms = 2650 mW
  > 23,0 Veff in 100 ohms = 5300 mW
  > 12,4 Veff in 50 ohms = 3100 mW
  > 9,1 Veff in 32 ohms = 2600 mW
  > 4,9 Veff in 16 ohms = 1500 mW
unbalanced Outputs: 2 x 1/4" phone jacks
balanced output 1, gold plated 4-pin XLR connector
Power supply: 230 / 115 V AC 30 VA
Dimensions: 170 x 49 x 320 mm (W x H x D)
Case Material: Aluminum


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