I have 4 Eminence Delta Pro 12 A Drivers with the Nominal Impedance* 8 ohms
Music Program 800W
Is this in a guitar cabinet? And since your moniker is djxxxx, I am going to assume not, what cabinets are these in? Are there horns?
IF the speakers are wired in parallel, that would be a 4 Ohm load and the CS-3000 will push ~1000 Watts per channel into a 4 Ohm load, so each speaker can get 500W - that should be fine.
The problem is that when i start to crank up the alternators to 1/2 way the speakers get really loud and start pushing hot air.
I am also going to assume that you mean "attenuators" and not alternators - unless that is some new DJ box I am unfamiliar with.
Here's a better way to start:
Read this paper on Gain structure:
Paper too complex? Here's an abbreviated version, but I have no way of knowing what else is on your system, so take proper caution.
- Turn down EVERY mixer & slider and Gain knob and attenuator you have to the least position.
- Turn the CS-3000 gain knobs (attenuators) to Max.
- Do you have a crossover or an EQ between the mixer and amp? If so, adjust those to 0 dB (usually 12 o'clock.
- Anything else between the mixer and the amp? Set it to 0 dBu.
- Set you music source (iPod, computer, whatever) to halfway.
- Raise your Master slider slowly until the volume is correct for the venue. Not enough volume? Get a bigger rig.
In addition i have 4 Eminence Omega Pro 18 A Drivers with Nominal Impedance* 8 ohms
Music Program 1600W
and would like to know which CS amp to buy to power all 4 Omega Pro 18 A from one single amp (2 drivers per channel)??/
Again, it depends on the cabinet they are in, are there other drivers? For just two per channel, wired in parallel, a CS-4080 at 2040 per side into a 4 Ohm load isa good pairing. An IPR-7500 would also be a good pairing.
These are as good a recommendations that can be made with the info you have provided.
A complete system listing will aid any further recommendations.