I know you said you weren't looking for software, but Cool Edit Pro does exactly what you want. We did a concert in 1979 that was a little too long to fit on two LPs so our record company in it's wisdom sped the whole thing up to fit. This made everything about a quarter tone sharp and to our ears a bit unreal. You can record into Cool Edit through the mic input of your sound card for live recording, or the line in if you're recording a record etc and either choose from changing the speed with no pitch change or changing the pitch with no speed change (or just changing both like with a tape recorder. It also has lots of effects such as limiting to smooth out the dynamic range and a range of echo types. I run it on an old P166 which is pretty slow so anything better than that will give you a good result.