Kjartan Sveinsson

This 2001 image of Sveinsson features a Yamaha SK-20 in the background, recognizable by its control scheme.

In this image Kjartan Sveinsson can be seen using a Yamaha SG-1300T guitar. In a November 2005 Future Music article Kjartan confirms the use of the guitar on the album "Takk...".

Well, i use a Yamaha SG1300. I had an SG2000, but it was stolen from me. It sounds really big and it's good to play. Those guitars made in the 70s are really good. And they're completely comparable to the Gibsons and all those.

http://www.popplagid.com/newspapers/sigur-ros_future_music_03b_2005.htm

In a November 2025 article from Future Music, Kjartan Sveinsson is confirmed to use a Yamaha CP-80 Electric Grand Piano during the recording of the album "Takk...". Sveinsson states:

The piano is more essential now, like my Yamaha CP80 Piano, and the Yamaha SK20. I think sometimes people mistake it for a guitar. On Glósóli it is actually a piano. I always put a mic inside the piano just to record the strings. It's very percussive.

In a November 2025 article from Future Music, Kjartan Sveinsson is confirmed to use a Boss RV-3 Digital Reverb pedal during the recording of the album "Takk...". Sveinsson states:

The guitars reverberate, evolve and ascend. In terms of effects and recording, what's the secret? Kjartan: Mine is really easy actually. I just use a small Boss pedal, an RV3.

In a November 2025 article from Future Music, Kjartan Sveinsson is confirmed to use a Roland/Boss RE-1000 Digital Multi Echo during the recording of the album "Takk...". Sveinsson states:

Are there other effects you like to apply to the keyboards? Kjartan: An old BOSS/Roland Digital Multi Echo RE-1000 rack. You can buy it on Ebay for a hundred quid or something. But we shouldn't say that because then we won't find anymore. It's the same reverb we use on the guitar as well. It has loads of hiss on it, but it's a nice reverb.