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Violectric HPA V550 PRO Headphone Amplifier - Desktop Sound, Refined
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violectric hpa v550 pro front panel view

Violectric HPA V550 PRO Headphone Amplifier

by Violectric
$3,599.99
Product Page Features
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Violectric HPA V550 PRO Headphone Amplifier - Robust and Powerful Desktop Audio

The Violectric HPA V550 PRO Headphone Amplifier boasts high-power output and low-noise performance, so you can drive dynamic or planar magnetic headphones to their fullest potential.

Plug in any headphone through the multiple input and output options and take full control over your music with the 256-step volume control and balance knob. Better yet, control the HPA V550 PRO through the included remote, and enjoy great sound at home or in the studio.

 violectric hpa v550 pro front view

What's In The Box?

  • Violectric HPA V550 PRO Desktop Headphone Amplifier and Preamp
  • Remote Control
  • Power Cord
  • Limited 5-Month Manufacturer Warranty

The HPA V550 PRO features a 256-Step Motorized Volume Knob for precise control over your music

The HPA V550 PRO separates itself from its HPA V550 brother with a 256-Step Motorized Volume Knob, designed to give you more precise control over your music. Alongside the beautiful motorized volume control is a balance knob, so you can create an immersive sound setup in any space.

 violectric hpa v550 pro front view on a table

The Violectric HPA V550 PRO is powerful, but quiet, so you can hear more details from your headphones

The highlight feature of the Violectric HPA V550 PRO is its incredible output power and low-noise performance.

Rated for up to 6400mW at 50 Ohms or 735mW at 600 Ohms, the HPA V550 PRO has enough juice to power the most demanding headphones.

Whether you're rocking a low-sensitivity dynamic headphone or a power-hungry planar magnetic, the HPA V550 PRO will extract the best from your gear. The best part? It does all this without introducing additional noise to your music, so you can hear details with incredible clarity.

violectric hpa v550 pro front angled view

Pre-Gain DIP Switch with Pre/Post Fader Switch so you can get the best sound for any setup

The HPA V550 PRO features a DIP Switch for Pre-Gain, so you can fine-tune the HPA V550 PRO to your preferred headphones or active speakers. The V550 PRO also features a Pre/Post Fader switch, so you can control sound with precision.

violectric hpa v550 pro aluminum remote on a table

Multi-input/output options, so you can use any headphone you like

The HPA V550 PRO headphone amplifier has all the input/output you could ever want:

  • 2x XLR 3-Pin Balanced Line Input (1 Stereo Pair, Rear Panel)
  • 4x RCA Coaxial Unbalanced Line Input (2 Stereo Pair, Rear Panel)
  • 2x XLR 3-Pin Balanced Line Output (1 Stereo Pair, Rear Panel)
  • 2x RCA Coaxial Unbalanced Line Output (1 Stereo Pair, Rear Panel)
  • 1x XLR 4-Pin Balanced Stereo Headphone Output (Front Panel)
  • 2x 1/4" TRS Unbalanced Stereo Headphone Output (Front Panel)

With support for XLR, RCA, and 1/4" TRS, you can plug in any headphone or active speaker and enjoy high-fidelity sound instantly - no need to swap cables or adapters.

violectric hpa v550 pro back view

Violectric HPA V550 PRO Specs

Number of Headphone Channels

Single Channel

Recommended Headphone Impedance

16 to 600 Ohms

Headphone Output Power

6400 mW into 50 Ohms (Max)

735 mW into 600 Ohms (Rated)

Analog Audio I/O

2x XLR 3-Pin Balanced Line Input (1 Stereo Pair, Rear Panel)

4x RCA Coaxial Unbalanced Line Input (2 Stereo Pair, Rear Panel)

2x XLR 3-Pin Balanced Line Output (1 Stereo Pair, Rear Panel)

2x RCA Coaxial Unbalanced Line Output (1 Stereo Pair, Rear Panel)

1x XLR 4-Pin Balanced Stereo Headphone Output (Front Panel)

2x 1/4" TRS Unbalanced Stereo Headphone Output (Front Panel)

Power Requirements

AC Input

Number of Headphone Channels

Single Channel

Recommended Headphone Impedance

16 to 600 Ohms

Headphone Output Power

6400 mW into 50 Ohms (Max)

735 mW into 600 Ohms (Rated)

Frequency Response

5 Hz to 250 kHz -0.5 dB

Gain/Trim Range

0 dB +6 dB

Maximum Input Level

+21 dBu

Maximum Output Level

+21 dBu

Dynamic Range

> 131 dBA

Impedance

Outputs:

< 1 Ohm

Line Inputs:

10 Kilo Ohms

THD+N

< -102 dB / < 0.0008% (At 1 kHz, 2 x 10V, 100R = 1W)

< -100 dB / < 0.001% (At 1 kHz, 2 x 4V, 32R = 0.5W)

Noise

< -103 dBu (A-Weighted)

Crosstalk

-105 dB (At 1 kHz)

-100 dB (At 15 kHz)

Channel Balance

6 dB

Damping Factor

320 at 50 Ohms (Unbalanced)

160 at 50 Ohms (Balanced)

Power Requirements

AC Input

AC Input Power

115 to 230 VAC, 50 / 60 Hz (T 1 A)

Power Consumption

50 VA

Dimensions

11.4 x 10 x 3.1" / 29 x 25.4 x 8 cm (with Feet)

Violectric HPA V550 PRO Manual

User Manual

Shipping is FREE on all orders to customers within the USA.

We don't want to mess around with fine print and extra charges. We like things to be simple and easy. 

Here's how shipping works around here:

  1. Place your order
  2. You'll receive a confirmation e-mail. This means we've received your order and have pre-authorized your payment method.
  3. We check the stock levels on your product.
    • If it's available, we'll get it shipped within 3 business days.
    • If it's not available, we'll reach out by email and make alternate arrangements.
    • If you placed a pre-order, we'll keep you updated by email on the status of your order.
  4. You'll receive another email with shipping/tracking information.

Learn More

We get it. Audio gear can be subjective. That's why we offer our industry-leading 365 day return policy. Here's a quick rundown;

  • 365 Day Returns, for ANY reason.
  • ZERO Return Shipping Cost
  • You will receive your hard-earned money back in your pocket, NOT store credit.

Learn More

We get it. You've got a lot of choice when it comes to online retailers. Here's why we think you should shop with us at HiFiSoundGear.

  • 365 Day Returns. Not happy with your product? We'll buy it back.
  • Free Shipping in the USA. No extra charges. Ever.
  • Price Match Guarantee. We'll beat another authorized dealer by 5% for the best prices online, guaranteed.
  • Zero Shenanigans. If we can't help you, we won't pretend like we can.
  • Old-School Service. We pride ourselves on the best service, anywhere.
  • Your Satisfaction Guaranteed. We handpick our products for quality, and we know you'll love them. But if there is ever something wrong, we'll fix it.
  • No Taxes (Except in CO) We're small enough that we don't need to charge taxes on your orders in any state but Colorado.

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