Karl Groom
Biography
Karl Groom is a British guitarist and record producer. He is best known as a founding and the only constant member of the progressive metal band Threshold. His production and mixing credits are mainly with progressive and power metal bands.
Bio from Wikipedia
Discography
Records they worked on — most-collected first.
Credited work
742 releases · 163 albums · active 1990–2026
- Engineering · 905
- Performance · 758
- Production · 475
- Mastering · 180
- Other credits · 89
Studios: Thin Ice Studios · Halfway Houses · LamerLuser Studios · Outhouse Studios
Frequent collaborators
- Threshold (3)
- Pendragon (3)
- Arena (11)
- Galahad
- Edenbridge
- Lee Abraham
- Clive Nolan
- Landmarq













