Adding a heat vent to the top of the cabinet, behind the handle, helps prevent overheating which is a known problem! Great sounding amp with a special clean/crunch sound as well!
![Marshall JTM612 [1995-1997]](https://img.audiofanzine.com/img/product/normal/5/5/5521.jpg?fm=pjpg&fit=max&s=46d8f36e3995906db0d4ee49bdf39efd){kind=small}
