Picked these up at a yard last weekend . I know nothing about them . They do function but need surrounds . The grills have EV badges . The back plate says electro-voice .made for sterling sound . EVS 1600 .12 inch woofer.4ish inch mid and a 2ish inch tweeter. I guess my question is . are they worth putting surrounds on . Ive got 6 dollars vested so far. anyone have any info?