Pete Townsend speaker configuration

[jimmyplant]

This is a two part question , thank you for your assistance .

I've seen a few videos of The Who and Pete has his combo and two cabs . I was wondering how he may have it set up and what my possible set up could be . Is he (or do you think he is ) running the combo in the 4 ohm input and paralleling the two cabs into the other 4 ohm input ? I thought I read somewhere that you shouldn't use all (8,4 and 4 ) speaker inputs at once . Is that a proper config ? and ....

I have four 8 ohm cabs . Would it be ok to parallel two 8 ohm cabs each into the 4 ohm inputs , running all four at once ? Would this be proper ohm configuration ?

These would be run off of my Mark lll head .

 

[Whoopysnorp]

I'm pretty sure that the two 4 ohm speaker outputs on a Boogie are intended for a total load of 4 ohms. Two 8 ohm cabs per jack would be a 2 ohm load, and even though Boogies tolerate impedance mismatches pretty well compared to many other amps, I wouldn't risk it. As far as what Pete was doing, I couldn't say. There's every possibility he was running a load that was theoretically unsafe. On the other hand, assuming an 8 ohm speaker in the amp, he could easily have been running a pair of 16 ohm cabs in parallel thus producing an 8 ohm load, which in parallel with the combo's speaker would have resulted in a total load of 4 ohms--easily achievable with the Boogie.

 

[stephen sawall]

I have four 8 ohm cabs . Would it be ok to parallel two 8 ohm cabs each into the 4 ohm inputs , running all four at once ? Would this be proper ohm configuration ?

These would be run off of my Mark lll head .

Depends on how it is wired. You could wire all four 4x12's in a way that equals a 8 ohm load and run it off the the 8 ohm output.

Like said above you could have it wired in a way that equals a 2 ohm load & would not recommend doing this at all.

I also do not recommend guessing .... make sure you have it correct. It could fry your transformer.... etc.

 

[STP1972]

Go to page 16 and forward in this manual...it gives some information you might find useful

http://www.mesaboogie.com/manuals/Mark1%20Reissue.pdf