I am enjoying Quad 405 amp - has pretty and engaging sound.
Although its an old design, it is an affordable classic British offering...A little over at 100 watts per ch advertised - as you know, this depends on who is doing the measuring and how it is done, so this probably is better than 303 amp - and they offer even more powerful one.
Its also smaller than most amps.
Their pre amp is good too - most people match them together - better than adcom, B&K, and other ones at the price point.