Klipsch KPT-684-SW-SMA
Brian Long
KPT-684-SW-SMA
The KPT-684-SW is a THX®-approved cinema subwoofer that features an advanced low-frequency driver design inside a bass-reflex enclosure for smooth response to the lowest audible frequencies. It uses dual 18-inch drivers that achieve 105 dB sensitivity through large, geometrically optimized magnet structures and lightweight cones, providing back-of-house bass reinforcement without consuming seating space.
Features
- Two K-47-EP2 18" woofers wired in parallel
- Strong aluminum internal bracing
- Four main fly points on the cabinet top
- Safety fly point inserts on both sides for horizontal suspension
- THX® approved design
Specifications
| Specification | Value |
|---|---|
| Frequency Response (+/- 3 dB) | 34Hz-800Hz +/- 3dB (-10dB @ 25Hz) |
| Power Handling | 600 watts (65V) per woofer; 2400 watts peak per woofer |
| Maximum SPL | 132 dB Continuous; 138 dB Peak |
| Sensitivity | 105 dB |
| Nominal Impedance | 8 ohms (3.6 min. @ 22Hz), woofers wired in parallel |
| Components | Two K-47-EP2 18" woofers |
| Input Connection | Four point barrier strip |
| Enclosure Material | 3/4" 7-ply plywood cabinet, 1" MDF motorboard |
| Height | 48.75" (123.8 cm) |
| Width | 23.5" (59.7 cm) |
| Depth | 30.5" (77.5 cm) |
| Weight | 128 lbs. (58.2 kg) |
| Recommended Minimum Amplifier Power | 1200 watts into 8 ohms per woofer |