OK. I have $735 dollars now. I've decided on the 1001rb-II. I can get a deal so that last 15 bucks isn't anything, I have enough money for the GK but not for a cab. Write now I have a 60 watt 1*12 Laney combo amp. It doesnt seem to have a preamp in but it does have direct out,effect loop, and Ex. out 1/4" plug ins. Is there any way I could get the head and make it to were I can use the GK preamp though the combo?? If not then just say it.