680R Double 18″ Low Profile Sub



The 680R is a low-profile, high-output subwoofer. It’s designed for applications where height of a standard front firing subwoofer would present a problem. Designed with install applications in mind, it’s 3 dB down point is 36 Hz in a typical situation. The enclosure uses two heavy duty 18” woofers with 4.0” voice coils.

System TypeQuasi 5th Order Bandpass
Active or PassiveActively Crossed at 80hz
Program Power (Watts)2400W RMS / 4800W Program
Biamp Operation OnlyYes
Nominal Impedance (Ohms)2 x 8 Ohms may be configured for 4 Ohms
Sensitivity (dB @ 1Watt/1 M)103dB
Max SPL (dB)139 Long Term
Frequency Response (Hz +/- 3dB)36-400
Crossover Frequency (Hz)80Hz or Below
Driver Configuration2 x 18″
LF DriversTwo 18″ with 4″ Voice Coils
LF Program Power (Watts)2400w each Driver
LF Impedance (Ohms)4 Ohm
InputsBarrier Strips
InputsSpeakon Neutrik 4 pin Optional
Enclosure Materials3/4″ Baltic Birch
Grille16 Ga Perforated Steel
Finish/ CoveringBlack Durablast Coating
Optional Finish /CoveringOther Colors Available
Dimensions (DWH, inches)42 x 42 x 16.5 inches
Dimensions (DWH , cm)107 x 107 x 42 cm
Weight (lbs/kg)195 lbs/ 88.6kg