Violectric HPA V550 PRO – Reference-Class Headphone Amplifier for Audiophiles The Violectric HPA V550 PRO is a high-end analog headphone amplifier with integrated preamplifier, designed for the most demanding audiophiles. Manufactured in Germany, this unit impresses with top-tier build quality, outstanding technical performance, and an incredibly clean, transparent sound signature.

Key Features 256-step relay-controlled attenuator for precise volume control Balanced and unbalanced headphone outputs: XLR 4-pin, Pentaconn 4.4 mm, 6.3 mm jack Individually adjustable PRE-GAIN feature in seven steps (-18 to +18 dB) Solid metal remote control for volume, input and output selection, mute Inputs: 2× RCA, 1× XLR – switchable from the front panel Outputs: 1× RCA, 1× XLR – switchable (HEAD / MUTE / LINE) Uncompromising Volume Precision At the heart of the HPA V550 PRO lies a relay-controlled volume attenuator with 256 steps. Instead of a standard potentiometer, the device uses precise 1% and 0.1% resistors, ensuring perfect channel balance with zero signal degradation or unwanted noise.

Versatile Applications The HPA V550 PRO serves as both a reference-class headphone amplifier and a premium stereo preamp. Thanks to the 7-step PRE-GAIN adjustment, it can be perfectly matched with any source or headphones, whether low- or high-impedance, including planar magnetic models.

Technical Specifications Analog inputs: 2× RCA (unbalanced), 1× XLR (balanced) Headphone outputs: 6.3 mm jack, 4-pin XLR, 4.4 mm Pentaconn (all balanced) Line outputs: 1× RCA, 1× XLR PRE-GAIN: -18 / -12 / -6 / 0 / +6 / +12 / +18 dB Dimensions: 290 × 80 × 248 mm (W × H × D) Chassis: solid black anodized aluminum Build Quality & Materials The HPA V550 PRO is housed in a precision-machined aluminum enclosure with a solid 8 mm front panel. High-quality components such as ALPS RK27 potentiometers and the robust metal remote control reflect its professional-grade construction.

Included in the Box 1× Violectric HPA V550 PRO 1× Remote control 1× Power cord 1× User manual Why Choose the Violectric HPA V550 PRO? If you're seeking the highest possible sound fidelity, dynamic headroom, and total control over your listening experience, the HPA V550 PRO delivers on all fronts. With unmatched precision, impressive power, and robust German engineering, this is the perfect choice for uncompromising audiophiles.