A series inside a parallel... I riddle wrapped in an enigma

[88h88]

Is there anything inherently wrong with wiring a series/parallel speaker circuit like this?


The amp is rated 230w RMS bridged at 4 ohm with all speakers being 4 ohm resistance. Speakers 1 and 4 are 100w RMS, 2 and 3 are 30w RMS
My math says that 1/4 should be getting ~92w and 2/3 should be getting ~23w, but my gut says that's wrong

I'm trying to reuse the cheap speakers I had laying around

Looking at that makes my head hurt. And also my amp set fire to itself. Someone has asked if this was a good idea and I honestly have no clue myself.

[Bill Fitzmaurice]

It's much easier to understand if you view the two central 4 ohm drivers parallel wired as a single 2 ohm driver. The result is three drivers series wired, two at 4 ohms, one at 2 ohms. Voltage distribution will not be equal, so this arrangement should not be used. The differing power ratings of the drivers is moot. What does matter is the T/S specs and response will be different, so what you'll end up with is probably not worth doing.

[Bruce Weldy]

I'm trying to reuse the cheap speakers I had laying around

Like making stew out of leftover oatmeal, pickles, chocolate cake, and onions. Just 'cuz ya' got it, don't mean ya' gotta' use it.

[Tom Smit]

[CoronaOperator]

I get speakers 1 and 4 getting 36 watts each, and speakers 2 and 3 getting 9 watts each.