From time to time customers ask what is the best way to wire two speakers together. From a functional perspective it is always best to wire the speakers in parallel while gigging. If 1 speaker fails during the gig then the other one will take over the entire load. This is a fail safe for making it through the gig. On the other hand, wiring two speakers in series if 1 speaker fails you will have dead air. This can be embarrassing at a gig! Especially when you start doing the Monkey ( a paniced flailing of the arms.) to figure out what just happened.

  From a tonal perspective parallel and series wiring differ. With parallel wiring you will have half the current flowing through each speaker at the same time. (Because there is more than 1 pathway for current to flow.) In series wiring you have all the current flowing through 1 speaker at a time. How does this affect tone? The parallel wiring scheme will give you less impedance than the series wiring scheme when using the same impedance speakers. Less impedance generally will have less high end which sounds like more low end to the ears. More impedance will yield more high end with less low end response. So if you wire the same two 8 ohm speakers speakers in parallel you will have a 4 ohm load and here less high end response and more low end response. On the other hand if you wire two 8 ohm speakers in series your total speaker load will be 16 ohms and you will here more high end response and less low end response. It all comes down to what sound you are aiming for. The choice is up to you.

As far as speaker impedance goes. It is best to use the full winding of the output transformer. This is the highest impedance on the back of the amp. Using a lower impedance will tap into your output transformer and you will not get the full bandwidth of the OT. Make sure that your speaker load matches the amps Output transformer load when choosing impedances.