Polk Audio 4 ohm speaker mismatch to Sherwood 7910

[TerryD]

So it's these 1977-79 Polk Audio I got from the local pawn shop that are shutting down my Sherwood 7910.  I use this set up with my drums.  I have speakers on the floor and these Polk audio bookself speakers.  I found out today that the speakers are 4ohms and thats probably shutting the relay off on the Sherwood.  The Sherwood is also blowing the 1 amp fast blow fuses on my tweeters.  Without thses speakers on the amp, the amp works fine.

Anything I can do to jerry-rig this so I can use these speakers with this amp...that will work and not blow the beautiful amp. 

[PRR]

4 ohms series resistance will put the load in the ballpark but seriously screw the damping and frequency response.

An identical pair of speakers in series would be beauty, but highly unlikely.

A pair of *large* transformers with 8 and 4 ohm taps may be used to lever the impedance, but IIRC that is a 70+ Watt amp which will not like saturating iron so they need to be 100 Watt transformers, big bucks. (And since you would probably use tube-amp iron, you will need to *seriously* insulate the primary leads or risk 800 Volt shocks.)