Marshall Kilburn III vs Middleton II

Whether you should choose the Marshall Kilburn III or Marshall Middleton II depends on your primary usage. The Kilburn III has a longer battery life with a warmer and fuller bass range. It also offers a higher output level and less compression. It offers room correction in addition to EQ tools. Although well built, it's not as portable as the Middleton II, which is smaller with a higher IP67 rating. The Middleton II also has a mic for taking phone calls. It has decently flat tuning, but it's not as boomy. You can EQ it to taste, but keep in mind that its lower max output means that bass frequencies tend to compress a bit more compared to the Kilburn III as you raise the volume. Still, its small size doesn't compromise the soundstage, and it fits more easily into a backpack for on-the-go.