23Hz

The tunes playing above are all made on this equipment

1500MHz laptop with 368MB RAM
Logic Audio
Ableton Live XS2.0
Yamaha MIDI keyboard CBX-K1
Evolution X-Session USB controller
Mackie 1202 VLZ mixing desk
EMI 2/6 USB audiobox
Marantz PM-66SE amp
Mission 720i speakers
AKG K240 headphones