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Dubious answer on cab impedance


Mr. Foxen
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[quote name='Mr. Foxen' post='404187' date='Feb 9 2009, 12:21 PM'][url="http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=330306553146&ssPageName=ADME:X:RTQ:GB:1123"]Peavey 4x10[/url]

I sent the dude a question 'Is this 4 or 8 ohm?

He replied



Is that even possible?[/quote]

No.

If it has 8 ohm drivers it can be 2 or 8 ohms.

If it has 16 ohm drivers it can be 4 or 16.

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[quote name='Ou7shined' post='404210' date='Feb 9 2009, 12:38 PM']Besides, I wouldn't buy anything off of someone who can't even be bothered to find the shift key to help make his auctions close to being legible.[/quote]

YEAH ANY PHULE KNO WHAT CAPS LOCK IS 4 ;-)

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[quote name='bennifer' post='412115' date='Feb 17 2009, 04:09 PM']Unless its got an impedance selection switch like the Marshall 1960 4x12 guitar cabs... you can set which way its wired on the back.[/quote]

There's still no way four 8 ohm speakers can be arranged to give 4 ohms. Two, eight or thirty two ohms, that's your choice.

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[quote name='bremen' post='412135' date='Feb 17 2009, 04:21 PM']There's still no way four 8 ohm speakers can be arranged to give 4 ohms. Two, eight or thirty two ohms, that's your choice.[/quote]

Actually you can, but it's not really recommended. You simply add a circuit into the 4 ohm selector so that extra resistors are added in parallel. The effect is that you have 8 drivers (4 real and 4 fake), but you lose half your power on the fakes! Also you need decent resistors as most will just burn out.
For anyone planning it - don't do it!

Stu.

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