Caleb Scofield

Caleb is seen with his Ampeg SVT in this photo. He also mentions it is a 1974 SVT in this link:

https://jnewton13.tumblr.com/post/2446842801/six-questions-with-cave-ins-caleb-scofield

Caleb mentions his Sunn 1x18 cab in this source link. He replaced the speaker with an "800 watt Eminence".

In this live video with Old Man Gloom, we can see Caleb using a GK 800RB, most clearly at 2:30, on top of an Ampeg SVT amp and 8x10 cabinet.

We can also see him use it with Cave In on a few occasions, for example: https://www.youtube.com/watch?v=WxLPksNhEdU @ 0:42

In this live video of Cave In’s 2003 show in Belgium, we can see Caleb using the Marshall VBA400 on top of what appears to be a Marshall VBC 8x10 cabinet. The head and cabinet can be clearly seen behind him at the 1:37 mark.

We can see in this live video from Reading 2003 that Caleb is using a Marshall VBC 8x10 bass cabinet for his rig. His use of this cabinet in particular can be seen in quite a few live videos from Cave In’s European tour that year (https://m.youtube.com/watch?v=mQ06LJJ4pTQ is another example). At 2:02 you can see it clearly with a Marshall VBA400 and what appears to be a Ampeg SVT II Pro off to the left of it.

In an interview, Caleb Scofield stated that he uses the Ampeg SVT-810E 8x10 Bass Cabinet, as noted by source author jnewton13 on Tumblr.