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Originally Posted by Meelo  That said, i'm having a bit of a problem with impedance matching -
i've scoured google, but seeing as this isn't too standard i'd rather double-check than find out the hard way;
It's an 8 ohm amp, and i want to connect it with three 8 ohm speakers.
Now, two of these actually test out @ 7 ohm each, and the third one, who came stock with the amp, tests out @ 6 ohms - meaning the closest i can make it is a 9.5 ohm impedance. |
Out of curiosity, how were you planning on setting these up? Some sort of paralell-series combination? I'm to lazy to do the math on how you reached 9.5.
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Originally Posted by Meelo What i've read through forums suggests you can connect a higher impedance cab to a lower impedance amp, but not vice versa. I also know that the average impedance range for amps nowadays is ~3 ohms.
Thing is, if a 6 ohm speaker works with my 8 ohm amp, wouldn't that be risky?
and if it isn't, did i get something wrong reading through the forums? |
Correct, you can always connect a higher impedance cab to a lower impedance amp. The main reason why this isn't done very often is because the output on the amp is the most efficient when you get your impedance as low as possible. The higher the impedance, the quieter the amp becomes.
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Originally Posted by Meelo Last, and most importantly - what are my chances of blowing something up connecting a 9.5 ohm set up to a 8 ohm amp? |
Your chances of blowing up your amp or your speakers are less on a 9.5 ohm speaker set than they would be on an 8 ohm set. The higher the impedance, the safer you are. I ran an 8 ohm speaker on an 4 ohm-capable amp for a while. The only drawback is that I got less wattage out of the amp, and it was therefore quieter than it could have been. Since it was a bedroom amp this wasn't a big deal to me. You're only 1.5 ohms over your minimum, you'll barely notice a difference.