Our newest add to the Power Fighter line is the new Killer K9. This new monster will be comming out in 2 versions. A Street (K9s) for 14V and K9 for Super Street 18V. All PF line mono amps are linkable and can run 18V. This new baby will hit the streets in 3-4 weeks. If you would like to res. your new K9 or K9s, please send your closest dealer a mail.