Well, the Mixer ist still functioning. Only the Preamps don´t work anymore. So actually i still have a mixer. Just without preamps. And with the mx1604a (at least with mine) the noise level when you use more than one preamp was pretty high. A friend of mine has a bigger one (a Eurodesk with meterbridge) and there the noise is very decent.
But anyway my budget is around 100$ and I thought it might be more realistic to get fairly decent preamps for that money than a Mixer in that pricerange.