Another infamous ohms questions

Blues Power · 02-25-2008, 01:20 PM

I have a Fender pro reverb RI (2005 model). I want to connect my marshall
4x12 cab which is switchable from 4 or 16 ohms. my amps internal speaker is 8 ohms and the ext jack says 8 ohms. The amp automatically switches to 4 ohm load when both jacks are connected

can this be safely done at the 16 ohm setting on my cab.

thanks

Mikeeeeh · 02-25-2008, 07:50 PM

Yep you should be safe as long as amp output load is lower than the cab value... you can even drive the cab at the 4 Ohms setting as you stated when both internal and external jacks are loaded the amp load is reduced to 4 Ohms.

02-25-2008, 01:20 PM	#1 (permalink)
Blues Power V.I.P. Member Join Date: Oct 2007 Location: Hicksville Posts: 2,134 Thanks: 19 Thanked 14 Times in 6 Posts	Another infamous ohms questions I have a Fender pro reverb RI (2005 model). I want to connect my marshall 4x12 cab which is switchable from 4 or 16 ohms. my amps internal speaker is 8 ohms and the ext jack says 8 ohms. The amp automatically switches to 4 ohm load when both jacks are connected can this be safely done at the 16 ohm setting on my cab. thanks __________________ http://www.soundclick.com/electricbluespower

02-25-2008, 07:50 PM	#2 (permalink)
Mikeeeeh Senior Member Join Date: Oct 2007 Location: Wexford, Ireland Posts: 936 Thanks: 1 Thanked 8 Times in 2 Posts	Re: Another infamous ohms questions Yep you should be safe as long as amp output load is lower than the cab value... you can even drive the cab at the 4 Ohms setting as you stated when both internal and external jacks are loaded the amp load is reduced to 4 Ohms. __________________ Did you see the Sun outside today? Burning the bridges I built yesterday! Proud member of Ireland's ShamROCKers!

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