Turbosound TLX215L Compact Dual 15" Subwoofer for Portable and Fixed Installation Applications - DEMO Brand_Marantz The PHD button is designed

The PHD button is designed to check the connected speaker lines for wiring and impedance errors

The Style/Pattern knob on the SWING can select up to 8 saved programs in Sequencer style/pattern

This can often be experienced in the studio when recording a drum kit

1 x set of headphones

Turbosound TLX215L Compact Dual 15" Subwoofer for Portable and Fixed Installation Applications - DEMO Brand_Marantz The PHD button is designedProduct Features Compact bandpass loaded subwoofer for portable and fixed installation applications 1,000 Watts continuous, 4,000 Watts peak power Ideal for FOH applications and compact drum, DJ or side fill monitoring Dual high excursion 15" low frequency drivers with inside outside wound coil for high power Integral rigging system for suspending or ground stacking with TLX84 Low distortion bandpass port design 18 mm (3 4") plywood enclosure with