The S 604 is a welcome addition to the highly successful S 600 series of Jamo speakers. With a 25mm/1in soft-dome-tweeter and a very powerful 165mm6½in woofer the S 604 gives a very convincing performance in a package that is very modestly sized. Combine a pair of these with a Jamo subwoofer like the SUB 250 and you have a very potent, stylish system.