Thank you for those reference docs, they were a good read!! I'm an electronics technician so I know a good bit about the volts/ohm's/watts/clipping scenarios
but am most definitely a rookie when it comes to being a soundman. Leaning by the school of 'hard knocks' isn't always fun, but it can be exciting! I have been reading a ton of different forums on the net-better to learn from someone else's mistakes.
From reading other posts on this board & elsewhere, I'm betting I blew it (or it was previously damaged as it was acquired in trade) as we miked up the drummers' set a few weeks ago. I thought by engaging the 30hz filters on the mixer they'd protect the speakers from the kick drum...betting I was wrong now
Yes, another leaning experience
Specs on the SP5XT's say 400 Watts continuous, 800 Watts program,
1600 Watts peak.
Specs for the SP2G's are 300 Watts continuous, 600 Watts program, 1200 watts peak.
Specs for the amp are (Samson SX-1800) 600 wpc @ 4 ohms, or 400wpc @ 8 ohms. (RMS)
I'd always read it's better to have an amp that exceeds your speakers limits, and to run it without clipping than to expose the speakers to a clipping signal.
I've always been very careful when setting things up at soundcheck to set all the levels coming into the mixer 1st, then run the mixer up to averaging around the 0db mark with maybe +1, +2 on peaks, then dialed up the amp so the 'clip' lights just start to illuminate, then reduce the amp to the next lower detent on the pots. Only seen the clip lights come on faintly once or twice during practice, and I keep a fairly keen eye on it. Monitors are another story-the bane of my life!!
Mixer: I'm looking at picking up is a Behringer FBQ model; has an electronic crossover built in with seperate sub out xlr connector, also has high & low pass filtering. Depending on which model sub I find, I figure a 100hz crossover should protect the sp's a bit more. Amp for the subs is an Altec 9446, so that'll have plenty of kick.
Thanks again to everyone-I do appreciate any comments as I'm definitly a newbie to sound! Any and all comments welcome!!