2 ohm 212 to 8 ohm

jimmynumber9 · December 29th, 2009, 09:48 PM

Hi, I'm just wondering if it's possible to change a 212 2 ohm cab to a 8 ohm cab.

Thanks!

edgetone · December 29th, 2009, 11:20 PM

Yes. If the two 12's in your cab are 4 ohms each, wired in parallel for 2 ohms total, you can wire them in series for 8 ohms total.

jimmynumber9 · December 30th, 2009, 12:52 AM

what about 8 or 16 ohm speakers?

robt57 · December 30th, 2009, 12:56 AM

Quote:

Originally Posted by jimmynumber9

what about 8 or 16 ohm speakers?

two 8 ohm speakers will be wired parallel 4, and series 16
two 16 ohm speakers will be 8 or 32ohms

JayFreddy · December 30th, 2009, 12:58 AM

Use this impedance calculator:

http://www.duncanamps.com/technical/impedance.html

jimmynumber9 · December 30th, 2009, 01:00 AM

Thanks. So their's no way they can be anything but 4 ohm?

robt57 · December 30th, 2009, 01:15 AM

Quote:

Originally Posted by jimmynumber9

Thanks. So their's no way they can be anything but 4 ohm?

If yo have two speakers and it is correctly marked a 2 ohm cab, they can only be 4 OHM speakers/drivers.

You can wire the 2 4ohm speakers series and have an 8 ohm cab.

Jack Knife · December 30th, 2009, 09:13 AM

If you're looking to use that cab with an 8 ohm amp, get a Weber Z-Matcher and end all your cab-to-head matching issues forever

eugenedunn · December 30th, 2009, 09:37 AM

Yes, another vote for the mighty Weber Z-Matcher. A veritable Swiss Army Knife of connectivity.

jimmynumber9 · December 30th, 2009, 08:11 PM

I'll have to look into that. Thanks everyone

December 29th, 2009, 09:48 PM	#1 (permalink)
jimmynumber9 Tele-Meister Join Date: May 2009 Location: Kimball, NE Age: 18 Posts: 455	2 ohm 212 to 8 ohm Hi, I'm just wondering if it's possible to change a 212 2 ohm cab to a 8 ohm cab. Thanks! __________________ "Technological progress is like an axe in the hands of a pathological criminal."

December 30th, 2009, 12:52 AM	#3 (permalink)
jimmynumber9 Tele-Meister Join Date: May 2009 Location: Kimball, NE Age: 18 Posts: 455	what about 8 or 16 ohm speakers? __________________ "Technological progress is like an axe in the hands of a pathological criminal."

December 30th, 2009, 01:00 AM	#6 (permalink)
jimmynumber9 Tele-Meister Join Date: May 2009 Location: Kimball, NE Age: 18 Posts: 455	Thanks. So their's no way they can be anything but 4 ohm? __________________ "Technological progress is like an axe in the hands of a pathological criminal."

December 30th, 2009, 08:11 PM	#10 (permalink)
jimmynumber9 Tele-Meister Join Date: May 2009 Location: Kimball, NE Age: 18 Posts: 455	I'll have to look into that. Thanks everyone __________________ "Technological progress is like an axe in the hands of a pathological criminal."

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December 29th, 2009, 11:20 PM	#2 (permalink)
edgetone TDPRI Member Join Date: Oct 2007 Location: East TN Age: 50 Posts: 39	Yes. If the two 12's in your cab are 4 ohms each, wired in parallel for 2 ohms total, you can wire them in series for 8 ohms total.

December 30th, 2009, 12:58 AM	#5 (permalink)
JayFreddy Friend of Leo's Join Date: Nov 2006 Location: Dallas TX USA Age: 45 Posts: 2,977 12 Photos	Use this impedance calculator: http://www.duncanamps.com/technical/impedance.html

December 30th, 2009, 09:13 AM	#8 (permalink)
Jack Knife Tele-Holic Join Date: Oct 2003 Location: Minneapolis, MN, USA Age: 54 Posts: 787	If you're looking to use that cab with an 8 ohm amp, get a Weber Z-Matcher and end all your cab-to-head matching issues forever

December 30th, 2009, 09:37 AM	#9 (permalink)
eugenedunn Tele-Afflicted Join Date: Dec 2006 Location: Sacramento, CA Age: 56 Posts: 1,332 41 Photos	Yes, another vote for the mighty Weber Z-Matcher. A veritable Swiss Army Knife of connectivity.

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