I just bought a Hartke kickback 10 based on the salesmans assurance that I could use a "Y" cable to add another cab. When I read the Manual it said if I wanted to add a another cab, the speaker on the combo will be disconnected and is not recommended. Does anyone know if this is possible? Will this work or cause damage? The amp is not yet 2 weeks old. Did I get Scammed? I'm just beginning and have a long way to go . I would really appreciate any info../advice. I'm looking for low end sound, but this amp alone doesn't cut it. I want to add a 15" cab in the near future. Should I return the Combo and get something else? (SWR, Carvin, Crate, etc.) Looking to spend about $400 for a combo with the ability to expand. Thanks in advance.