Wiring amplifier outputs in parallel isn't recommended unless the amp was designed with this in mind. The reason is that any slight differences in output level between the two channels will mean that the amplifiers 'fight' each other and try and source and sink current between themselves. That could lead to overheating.
If the amplifiers are already of a bridged type or a Class D type then they would probably suffer immediate damage.
If the amplifiers are already of a bridged type or a Class D type then they would probably suffer immediate damage.
imho only one speaker box to one out of the amp...........
and a mono signal (or only one channel of a stereo signal) at the (paralelled)
input(s)............
a piezo tweeter is a capacitor and has a rather high (frequency dependent) impedance.....
and a mono signal (or only one channel of a stereo signal) at the (paralelled)
input(s)............
a piezo tweeter is a capacitor and has a rather high (frequency dependent) impedance.....
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what? not sure i would do that either...i'm a little unclear on the question, are you asking what the output impedance of the amp would be or the speaker load impedance?
and not sure if the"highly artistic" hand rendering is depicting 1/4 inch phone plugs, if it does don't unplug any speakers while the amp is on!
and not sure if the"highly artistic" hand rendering is depicting 1/4 inch phone plugs, if it does don't unplug any speakers while the amp is on!
Amplifier is a solid state mixer pa amp, 4 ohms,150 watt.with 1/4 inch jack sockets,say.s on amp sockets wired parallel,
Speakers are no name one eight inch 4 ohm speaker and one piezo tweeter horn that i get no ohms reading from wired parallel.
I need to know if wired as drawing shows,would the overall ohms of speaker cabs be 4 ohms,or lower.?
Speakers are no name one eight inch 4 ohm speaker and one piezo tweeter horn that i get no ohms reading from wired parallel.
I need to know if wired as drawing shows,would the overall ohms of speaker cabs be 4 ohms,or lower.?
If the amplifier sockets are wired in parallel internally (so its a mono amp with parallel speaker outlets) then your two 4 ohm speakers will appear as a 2 ohm load to the amplifier.
So you need to be sure the amplifier can handle that low impedance.
The piezo tweeter will read open circuit, that's normal. Two of these also in parallel will not affect the overall impedance by any great amount.
So you need to be sure the amplifier can handle that low impedance.
The piezo tweeter will read open circuit, that's normal. Two of these also in parallel will not affect the overall impedance by any great amount.
if the output 1/4's are parallel then connecting your speakers will result in a 2 ohm load (question is will the amp tolerate it!)
so the piezzo's are giving you different readings?
mooly you beat me to it!
so the piezzo's are giving you different readings?
mooly you beat me to it!
Back of amp clearly states that the minimum load is 4 ohms.
If using both output jacks, your speaker cabs must therefore each be 8 ohms.
If using both output jacks, your speaker cabs must therefore each be 8 ohms.
If the speakers in your original pencil diagram were 8 ohm speakers, then plugging one cabinet into each amplifier output jack would give a safe load of 4 ohm.
If you mean wiring the two 4 ohm cabs in series, then the total load would be 8 ohm. This is possible, but requires non-standard wiring.
I'd like you to draw a diagram to show me that you know exactly how to do this! 😉
I'd like you to draw a diagram to show me that you know exactly how to do this! 😉
Let me ask this pertinent question - have you actually built two separate cabinets yet?
I ask this because it is easier to wire the two drivers together in series inside the ONE cabinet as shown in my diagram.
I ask this because it is easier to wire the two drivers together in series inside the ONE cabinet as shown in my diagram.
I have 2 ready made cabs with a driver and piezo horn in each,wired in parallel,these cabs have 40 watt 8 ohm drivers in them,I want to change these for 100 drivers 4 ohm.
well you have two 4 ohm speakers with some piezzos (and they don't count in terms of load because they're more like a capacitor)
so your left with two choices 2 ohm(two 4 ohm speakers in parallel) or 8 ohm (two 4 ohm speakers in series) short of adding resistance (and resistors don't make sound they convert sound to heat) there's no easy work around...
if your going to change speakers why not get 8 ohm? (or 16 ohm for that matter)
so your left with two choices 2 ohm(two 4 ohm speakers in parallel) or 8 ohm (two 4 ohm speakers in series) short of adding resistance (and resistors don't make sound they convert sound to heat) there's no easy work around...
if your going to change speakers why not get 8 ohm? (or 16 ohm for that matter)
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