looking for bass pre and amp

[martthie_08]

If your going for a bass combo, why don't you go for a tube based design like the ampeg portaflex? I am sure you will find a lot of information on this amp and it is a highly respected for bass, although I haven't had the chance to try one yet. You might also want to have a look at TUT Vol. 3, which has infos on the portaflex and the svt: http://www.evatco.com.au/books2_files/tut3cont.html

I really don't understand why you'd want to have 400-500 Watts in a bass combo, our bass player has a svt classic, which puts out about 300 Watts (into an 8x10) and this is enough for any situation. In the studio, we even did some recordings with a 12 watt fender princeton

 

[Nikolay]

actually 300W is enough
first I must make the box, than preamp. and I try wiht some poweramp only for test...

 

[ToshiroTamigi]

you may use the out potentiometer and replace the 11 way switch with a single 2 way switch using only the two positions that give the better result to you. yes the low cut filter should be taked out.
A low cut filter on a bass is not so useful... :grin: