Used Sunn 215B (8 ohm)
Here's a vintage Sunn cabinet loaded with two JBL K140 speakers. This is an 8 ohm cabinet, so it can be paired with any other 8 ohm box to make a monster stack. More mid-range-y and aggressive than other 215 cabs. This one has seen some use, as evidenced by its appearance, but structurally it's sound.