From the ability to either split the two channels coming in to your phones, or mix them together, to the way it's all layed out, the cueing section on the 600 has to be one of the best I've ever used.

The effects have been slightly improved in my opinion on the 500, but I can't think why. Just hit the big yellow button with the flanger set to 4/1 and you'll think you're Oakenfold for those four bars.

The Eq's are as tight as ever, really nicely laid out on the mixer so there's no chance of hitting the line/phono switch like on the Gemini series of mixers, the amount that they take out in each frequency is perfect - and the sound you're left with when killing the bass is not tinny and shrill like with the Gemini series.

The sampler's a nice idea too. Being able to record up to 8 seconds of the tune (all done through the beat counter, so you don't have to worry about edits like on the Numark mixers) then loop it seamlessly - get the crowd a bit antsy - then fire off to another tune - beautiful. The only thing I'd like is for the sampler to remember the last sampler even when the mixer's been turned on and off.

The amount of outputs, inputs, control and creativity made available through this mixer makes it more than worth the £750 current price tag - even when you think you could buy two SL's for that cost!!

If you have the money, are into long, drawn
out, seamless, creative trance/progressive mixes, and you have the money, I can honestly say (IMHO) that there is no better mixer out there.

refer:http://www.dooyoo.co.uk/dj-equipment/pioneer-djm600/106559/