Here's an Evans SES300 speaker cab; a 1x15", open back, 300 watts into 8 ohm, lightweight little monster. As Evans says, "When you need an extension speaker cabinet that can spawn a sonic whirlwind, consider the mighty SES300. It’s the only fifteen-inch speaker cabinet designed to fully complement all Evans Custom Amplifiers." Well, other amps as well, I suppose.

When purchased direct from Evans: "Your cost is only $748 (US dollars) for a tone as big as Texas!"
Ah, but, here, your cost is only CAD 650 (@USD 475) plus shipping to anywhere.

This one is in as-new condition, with its cover, which is in excellent condition.
Pedal steel players and jazz cats know Evans well for its small, powerful amps.
This cab is loaded with a 15” Eminence Beta speaker, rated at 300W into 8 ohms.

It weighs a mere 24 lbs, and dimensions are 18.5" × 11.5" × 18.75"
Small and light - the pix show it next to a tele, as well as with a small Koch head, for scale.

Come on down!