Hartke Kilo Bass Amplifier Stereo amps offer 500 watts per side at 2 ohms, 1000 watts at 4 ohms in bridged mono mode Class-A all tube (3 x 12AX7) high-voltage preamp circuit 10-band constant-q graphic equalizer with independent level control Dedicated front panel switches and footswitch jacks for Mute, Overdrive, EFX, and EQ Front and rear panel tuner output jacks