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keith wrote: Major newbie question,
I have a Mackie M1400 amplifier feeding two 12" Electro-Voice "subs".
What are the comparative pros and cons between feeding each 8 ohm speaker with each side of the stereo amp (300 watts X2 @ 8 ohms) and feeding the two speakers in with the amp bridged to mono (1000 watts X1 @ 4 ohms mono)?
Also, I have a fairly regular gig at this place where I hang my speakers. Hanging the speakers is easy but wiring them is difficult. The owner has a large spool of single strand solid core copper wire, the kind used in commercial construction 20 amp AC wiring. I am currently re-hanging my 16m wires each gig but he said I could have the wire to string up in a (semi) permanent way with boxes on each end for speaker connectors.
My second quesion is this, is it better to use my 14 gauge speaker wires directly from amp to speaker (without any additional connections) or is it better to string the solid core (unknown guage but MUCH thicker than my 14 gauge wires) and connect the first 3m and the last 3m each time, creating two more connections between the amp and each speaker? By the way, this is a covered outdoor venue.
Thanks in advance.
Take care, Keith
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If you are talking about a pair of those EV subs wired in parallel, that is a 4ohm load. 1400 watts. While they rate the amp down to a 4 ohm load in bridge mode, what is its life expectancy really under heavy use at that load?
They also don't specify if that is peak or continuous. I looked up some EV 12 inch subs that are rated at 800 watts...also not specified if it is peak or continuous.
If that is a continuous rating from the amp, and a peak rating from the cabs, you are inviting destruction! Even if that is a peak rating from the amp and a continuous rating from the cabs it is still in the seriously likely to self destruct area!
Presuming that is a peak rating on the amp, adding a matched amp to run each sub in bridged mono, with a really good "brick wall" limiter could help you quite a bit! Your mismatch becomes safe to dial in!
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