Are practice amps flat?

[CL400Peavey]

FULL STORY - I have an Ampeg BA108. Very nice sounding practice amp for bass. I also play acoustic gtr. I'm thinking about upgrading the speakers on the BA108 to a better 8" and then adding a tweeter to turn it into a full range box. Then I can use it for bass practice and to amplify my acoustic guitar. But before I go to the trouble of adding the crossover and tweeter I wanted to know if I was starting with an amp that would work OK for guitar.

I suppose I could find the answer by playing a CD through the CD Input and then through the instrument input (with tone controls flat) to see if there is any difference between the signal paths.

- Keith -

IMHO this is a futile effort. Your time and money would be better spent finding a amp or combo that does what you want.

To get anywhere close to the results you will want you need to know more going into the project than, "This is a "better" 8" speaker and this is the tweeter I want to add..."

As an example, I dont really think you get to the range of "good 8" bass speakers" until you start looking at something like the Faital Pro 8pr200. At $200 a pop I would be wanting to put that speaker designed to optimize its performance. Not some low budget combo where you might end up with very poor results.