Question:
i have 112 tube combo amp. with only one output for an external speaker. i just aquired 2 12" califone speakers today each it its own box. is there a way i can run my amp into both of these speakers even though i only have 1 output. would some kind of direct box work for this? each speaker has a 1/4" plug running out from the back of the speaker.
Answer:
Originally Posted by nick2282 i have 112 tube combo amp. with only one output for an external speaker. i just aquired 2 12" califone speakers today each it its own box. is there a way i can run my amp into both of these speakers even though i only have 1 output. would some kind of direct box work for this? each speaker has a 1/4" plug running out from the back of the speaker. well if you just wanted to use the externals you could unplug your internal speaker (if your amp has this option).
i think an Y-plug might work for this also.
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Yeah I don't see why a 1/4" splitter wouldn't work.
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A Y-splitter would work, but you have to remember, then, that you are running the speakers in parallel, and you need to adjust your amp's resistance accordingly. If you have two 8 ohm speakers, then they are 4 ohms wired in parallel. Basically, if all the speakers have the same impedance, you divide the impedance of a single speaker by the number of speakers wired in parallel.
Two 4 ohm speakers in parallel = 2 ohms
Two 16 ohm speakers in parallel = 8 ohms
Whatever you do, though, DO NOT RUN AN AMP FOR A HIGHER IMPEDANCE RATING THAN YOUR SPEAKERS. Your amp will be DAMAGED.
It's not totally reccomended to run a 16 ohm speaker set through an 8 ohm amp, either, but it's safer than running 4 ohms through that 8 ohm amp.
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Running an 8 ohm amp with a 16 ohm speaker won't hurt anything, you just won't get but around half the advertised wattage out of your amp. Running a lower impedance speaker setup than your amp is rated can very likely cause your amp to overheat and/or have a meltdown. You don't want a smoking amp halfway through a song. As long as your total speaker impedance is at or above what your amp is rated you're fine. External speaker outputs often have an ohm rating next to the jack that you need to make sure you're not below with your additional speakers. If the two speakers you have are rated with different impedances then it gets more tricky. If you've got one 16 ohm speaker and one 8 ohm speaker, for example, your formula for figuring out the impedance becomes 1/((1/8)+(1/16))...which is 1/.1875...which gives you an odd impedance of 5.3, which is fine to run on an amp rated at 4 ohms, you just won't get quite the power out of it that it's rated. Hope it all makes sense. Rainer's explanation was a tad confusing to me (the capitalized stuff) so I thought I'd elaborate.
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yeah a Y spitter would work. there really cheap also.
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im replacing the speakers with new ones