Description
This vented double 18” sub woofer was designed with an emphasis on low height to fit under platforms and stages. The 660R uses two upgraded 18” woofers with 4” voice coils. Very tight & punchy with a good combination of low-end frequency range qualities. It is similar in response to the tour version, but has no need for transport hardware.
| System Type | Vented Subwoofer |
| Program Power (Watts) | 4800 Watts |
| Nominal Impedance (Ohms) | 4 Ohms |
| Sensitivity (dB @ 1Watt/1m) | 101 |
| Max SPL (dB) | 138 |
| Frequency Response (Hz +/- 3dB) | 35 – 400 Hz |
| Crossover Frequency (Hz) | 80-100 Hz Recommended |
| Driver Configuration | 2 x 18″ |
| Inputs | 2 paralleled NL4 Neutrik Speakon connectors |
| Corners | On carpeted version |
| Feet | no |
| Flying Hardware | no |
| Bar Handles | no |
| Enclosure Materials | 3/4″ 11 Ply Birch |
| Grille | 16 Ga. Perforated Steel |
| Finish / Covering | DuraBlast polyurea coating |
| Dimensions (DWH xback W, inches) | 31 5/8 x 48 x 20 inches |
| Dimensions (DWH xback W, cm) | 80.3 x 122 x 51 cm |
| Weight (lbs/kg) | 160 lbs / 73 kg |
