Yes 4 is 'just RCA' and Forte' 4a has both RCA inputs and balanced inputs, and switches to go between also on the back. I agree about removing the balanced inputs and switchs on the 4a. (I've had a Forte' 4a since new and really like it. It runs hot and uses a lot of power idling, and sounds best if left on at least 8 hours. (the amp adds $10 a month to my electric bill when I leave it on all the time)
Difference between Forte 4 and 4A amp ?
Does any one out there know the difference between the Forte (Threshold) 4 and 4A amps ? Also, does the face plate displays the 4A model ? I just bought the Forte and the owner told me that it is a 4A model. However, the face plate and the back says it is a model 4. I am not sure what I got. Appreciate any help on this. Regards.