Violectric HPA V550 – Reference-Class Headphone Amplifier with Preamp Function

The Violectric HPA V550 is a high-end, analog headphone amplifier offering top-tier sound performance and exceptionally robust build quality. Designed in Germany by the renowned brand Violectric (built upon the professional legacy of Lake People), this model is the perfect solution for demanding audiophiles and professional users. As a hybrid device, combining headphone amplifier and line preamplifier, the HPA V550 adapts perfectly to nearly any source and headphone type – including high-impedance and planar magnetic headphones.

Product Highlights

• Analog headphone amplifier with built-in line preamplifier
• Supports both balanced and unbalanced headphones
• 3 analog inputs: 2× RCA, 1× XLR
• Headphone outputs: 6.3 mm, 4.4 mm Pentaconn, 4-pin XLR
• Line outputs: XLR and RCA
• PRE-GAIN adjustable in ±18 dB range (7 steps)
• Extremely low self-noise (< −103 dBu)
• Up to 6400 mW at 50 Ohms / 21 V RMS at 600 Ohms
• Wide frequency response: 5 Hz – 250 kHz
• Solid aluminum remote control included

Maximum Control & Crystal-Clear Sound

Thanks to its internal ±50 V power supply, the HPA V550 delivers high output voltage — ideal for high-impedance headphones. Simultaneously, very low internal gain ensures virtually inaudible self-noise. Its extremely low output impedance (0.15 Ω unbalanced / 0.3 Ω balanced) guarantees high damping factor, offering full control over even the most demanding drivers.

More than a Headphone Amp – For Audiophiles & Professionals

The V550 is not only a powerful headphone amp — it can serve as a high-quality line preamplifier in premium audio setups. With both RCA and XLR line-outs and independently switchable signal paths (line/headphone), it’s a versatile centerpiece for any hi-fi or studio system. The 7-stage PRE-GAIN feature allows precise level matching for various sources and headphones.

Premium Build & Convenient Operation

Encased in a rugged chassis made of up to 8 mm thick aluminum, the V550 offers both longevity and timeless elegance. All key controls are accessible on the front panel or via the included metal remote. The full dimensions are 290 × 90 × 275 mm (W × H × D), and gross weight is approx. 5.7 kg.

Use Cases

• High-end home headphone listening systems
• Professional mastering setups
• Audiophile systems with multiple source devices
• Central component in advanced stereo setups

Technical Specifications

• Inputs: 2× RCA, 1× XLR
• Outputs: 2× Line (RCA, XLR), 3× Headphones (6.3 mm, 4.4 mm, XLR)
• Dynamic range: > 131 dB (A-weighted)
• THD+N: < 0.001 %
• Frequency response: 5 Hz – 250 kHz
• Output impedance: 0.15 Ω / 0.3 Ω
• Power output: up to 6400 mW (50 Ω), 740 mW (600 Ω)
• Power supply: 230/115 V AC, dual toroidal transformers, >35,000 μF filtering
• Dimensions: 290 × 90 × 275 mm (gross)

Included in the box

• Violectric HPA V550
• Aluminum remote control
• Power cable
• User manual

Why choose the Violectric HPA V550?

This device combines German engineering precision with sonic excellence. If you're looking for a headphone amplifier that delivers crystal-clear sound, seamless source integration, and robust power handling, the HPA V550 is an elite solution built for reference-level performance.