Headphone Amps

• Suitable for all headphones with impedances from 10 ohms
• Balanced and unbalanced analogue inputs and outputs (XLR, RCA)
• Laterality: Extreme fine balance control
• Mono / Stereo switching
• Maximum output power: 2 x 3.7 W (at 120 ohms)
• Frequency range: 10 Hz to 300 kHz (-3 dB)
• Total harmonic distortion: 0.00091% (KH), 0.00085% (line)
• Dynamic range: 135.5 dB (KH), 136.3 dB (line)
• Linear power supply with toroidal transformer
• Power consumption: Max. 40 VA
• Stand-by power consumption: 0.7 W
• Aluminium front and lid
• Housing made of powder-coated sheet steel
• Dimensions (W x H x D): 278 x 100 x 335 mm (with foot and volume control)
• Weight: 4.3 kg
• Colour: Black
• Made in Germany

• Powerful headphone amplifier for studio and hi-fi applications
• Infinitely adjustable crossfeed function - crosstalk between the two stereo channels for more realistic surround sound
• Digital input with 32 bit DA converter
• Class Compliant
• Support of sampling frequencies up to 768 kHz PCM as well as playback of DSD (DSD4 or DSD256)
• Pre-amplification by 2 Burr-Brown OPA 2134 SoundPlus operational amplifiers for extremely low noise and minimal distortion
• THD + N (0 dBu, 10 Hz - 22 kHz, 600 O): 0.002%
• Max. Input level: +22.5 dBu
• Noise (A-weighted, 600 O): -97 dBu
• Max. Output power (600 O): 2x 190 mW
• Max. Output power (250 O): 2x 330 mW
• Max. Output power (47 O): 2x 400 mW
• Frequency response headphone output (- 3 dB): 10 - 200,000 Hz
• Three switchable stereo inputs: 6.3 mm balanced TRS jack
• Unbalanced RCA and USB
• Headphone output: 6.3 mm stereo jack socket
• Dimensions (W x H x D): 210 x 49.6 x 220 mm
• Weight: 1.45 kg

• A 5-fold internally switchable gain (-6 / 0 / +6 / +12 / +18 dB) for low to high impedance headphones (16 to 600 Ohm)
• NF frequency range: 150 kHz (-3 dB)
• Alps potentiometer with good synchronisation
• Switching power supply: 115 / 230 V AC / 8 VA
• 2 Line inputs: Cinch unbalanced (L/R stereo)
• 2 Stereo headphone outputs: 6.3 mm jack
• Enclosure dimensions (W x H x D): 105 x 42 x 165 mm
• Front panel dimensions (W x H): 108 x 45 mm
• Weight: 1 kg

Violectric HPA V550 Pro; headphone amplifier with 256-step relay (for even finer tuning of the volume steps); with remote control for volume, mute, input selection, resampling and output selection; motorized volume control; balance control; 3 analog stereo inputs: 2x RCA (unbalanced), 1x XLR (balanced); +/- 18dB pre-gain for optimal matching to source and headphones; 4 powerful amplifiers, 6400 mW Pmax at 50 Ohms, 21V RMS at 600Ohms; monitoring of headphone outputs for DC voltage and overload; headphone and line-out path separately selectable; headphone outputs: 2x jack (6.3mm, unbalanced), 1x XLR (4-pin, balanced); Line Outs: 1x RCA L/R (unbalanced), 1x XLR L/R (balanced); +/- 18dB line-out signal adjustment to following devices; 2 toroidal transformers; including: remote control, power cord and user manual; dimensions (W x H x D): 290 x 80 x 248mm; weight: approx. 6kg; color: black

• 6x Independent ultra low-noise headphone amplifier
• 150 mW per channel
• With output control
• 2x Stereo input (A and B) with symm. 6.3 mm jack connectors
• Additional stereo input for every channel with level control
• Mix control between input A and B
• Talkback for separate microphones with XLR connector
• Direct stereo line output on every channel (1/4" jack)
• Size: 19"/1 U
• Incl. Power supply

• 4 Adjustable headphone outputs
• 6.3 mm stereo jack connections
• RCA L / R and 6.3 mm jack input
• Mono-stereo switchable
• Operation with external DC power supply
• Max. Output Power: 4x 100 mW
• Input impedance: 1 kOhm
• Includes 12 V DC 500 mA power supply

• Stereo input
• Four separate outputs
• Separate level adjusters
• Inputs and outputs 6.3 mm TRS jack
• Power supply PS-27 included