lm1875 using two speakers instead of one

[devil6600]

i have built audio amplifier based on lm1875 which output 20w power, its working fine. now i want to drive 2 speakers of 10w each instead of a single 20w speaker, can any one advice if i connect two 10w speaker at output of lm1875?
thanks

 

[Tahmid]

Use 2 speakers with half the resistance of that which you have used, and connect them in series. Or you can use 2 speakers with double the resistance of that which you have used and connect them in parallel.

 

[vishnupg]

u may also reduce the gain of amplifier to a smaller value to reduce the power it deliver to ur speakers..i think a gain of 12 will do..

if u wish u can build two such ckts and use as stereo amp