The Edifier ES20 Portable Speaker is worth a look for those on a budget, and need a small speaker that can do pretty much everything the user asks.

The firm says its open-back cab series goes beyond neutral-sounding FRFR cabs by offering simulations of classic speakers as well as purely amplifying modeler tones ...

Abstract: The effective performance of the various types' modern storages assumes the solution of a number of tasks for the ensuring of raw materials reliable safety and the optimum use of a storage ...