The Summing Amp offers a sonic and ergonomic solution for music production. If you're savvy enough to realise that decent converters and a great little final analogue 'boosting and shaping' facility prior to the end of recording chain will improve your sound immeasurably then there are some great options out there depending on exactly what you require. If it's a simple sound enhancing option with a degree of effect insertion then we say look no further than the Phoenix Audio Nicerizer 16. ASAP Europe offers great deals on this unit. Alternatively Dangerous Audio, Neve and Thermionic Culture offer interesting options.