18 watt all tube amplifier with tons of tone in a super convinient package. Class AB fixed biased at 5%THD.  Players have described the PAK, "As louder and tighter than a Deluxe." 
PAK I SINGLE CHANNEL:
Gain and Master Controls  
(2) 12AX7 and (2) 6AQ5 tubes
Bright and Boost Switches
Boost foot switchable
Treble, Middle, Bass tone stack
Buffered FX Loop Send and Return
plate driven tone stack