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Hi guys, I know its not the best idea but I'm running 2x speakers rated at 4 ohm impedance on an 8 ohm amplifier. The amp however is a 30watt RMS per-channel amp, and the speakers are rated at 50watt.

My question is, if I add another speaker per channel (total of 4 speakers now) and wire them in series to increase the impedance to 8 ohms to match the amp, will the perceived volume actually be louder? I am hoping to get more volume and increase the reliability of my system.
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Showing 2 responses by bifwynne

Al, just a simple electronics question. I would think that a speaker has its own electronic attributes of resistance, reactance and inductance. So . . . would the characteristics of the signal coming off the amp be changed as it passes through the first speaker into the second? In other words, hooking two four ohms nominal rated speakers up in series isn't as simple as 2 times 4 equals 8. If it was, why not just stick a high power 4 ohm resister in series with just one speaker? Last point - a 30 watt amp is a pretty low power amp. If the OP winds up overdriving the amp, it may clip.
Thanks Al. If I understand your post, presumably, the FR of each speaker hooked up in series will NOT change. Instead, the resistance at any particular frequency will double. I guess I'm still a bit confused because if, for example, a speaker's phase angle suggests that the speaker is presenting a reactive load at a particular range of frequencies, it's hard for me to understand how that attribute doesn't affect what the next speaker downstream will see. What would happen if the speakers were hooked up in parallel? Thanks for the electroncis lesson.