6550 Electro Harmonix Power tubes
The Electro Harmonix 6550 power tube is a favourite amongst Hi-Fi enthusiasts, providing gorgeous warm rich soundscapes for your favourite music. The sound they produce can be describes as wide yet tight bass sounds with smooth mids and precise highs. Specifically designed for valve Hi-Fi systems they produce the sounds you would expect. Electro Harmonix has designed these tubes with a four-pillar structure and mica spacers which helps ensure reliability, in addition, new leaded glass compound has been used to ensure vacuum integrity and in return long life.