# Sennheiser HD 559 Open Back Headphone

- Category: Headphone
- Brand: ASTRO Gaming
- Model: A50 + Base Station
- Part number: 939-001517
- Price (US): $149.99
- Price last checked: 2026-08-06
- Rating: 3.9/5 from 1790 Amazon reviews
- Warranty: 2 years
- Product page: https://buildmypc.net/component-details/headphone/astro-gaming-a50-base-station-939-001517/

## Specifications

| Spec | Value |
| --- | --- |
| Brand | ASTRO Gaming |
| Model | A50 + Base Station |
| Type | Wired |
| Color | Black / Green |
| Frequency |  20 Hz - 20 kHz |

## Key Features

- Open back, around ear design. Connectivity Technology: Wired
- Powered by proprietary Sennheiser 38millimeter, 50-ohm transducers
- Soft, replaceable ear pads for enhanced comfort
- Robust 3 meter detachable cable and 6.3 millimeter jack
- Two year warranty when purchased from an authorized Sennheiser dealer

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