The JBL STX825 Dual 15″ Two-Way Speaker is an excellent choice when the application calls for high performance and simplicity. A pair of STX825s and a single, high-power amplifier is a complete sound system capable of reinforcing bass and kick drum or playing high-level music in clubs and other venues. The STX825 is comprised of two 380 mm 2226H patented Vented Gap Cooled woofers with combined power handling of 1600 watts (continuous). For the high frequencies, the newly designed 2453H 102 mm voicecoil, neodymium compression driver is mounted to a 90° by 50° horn. Bi-amp or full-range passive operation may be selected by means of a recessed, high-current switch mounted on the input plate. For applications requiring suspension, the enclosure is fitted with twelve M10 suspension points.
The enclosure is constructed of top quality birch/poplar laminate plywood and coated in JBL’s rugged DuraFlex finish. The attractive CNC-machined, 14-gauge steel grille wraps around the sides of the enclosure so there are no protruding lips on the front of the box to create acoustical interference. The grilles are internally lined with acoustically transparent foam to provide additional driver protection and give a very professional appearance.
Key Features
- Premium passive loudspeaker system
- Very high power handling
- Dual 380 mm Vented Gap Cooled low-frequency drivers for extended low-frequency output
- 102 mm voice-coil neodymium compression driver for high-power capacity and very lightweight
- 90° x 50° coverage
- Bi-amplified or full-range passive operation
- Twelve M10 suspension points
Specifications
| Active or Passive | Passive |
| Frequency Range | 34 Hz to 20 kHz (-10 db) |
| Frequency Response | 42 Hz to 19 kHz ±3 dB |
| Coverage Pattern | 90 x 50 ° nominal |
| Crossover Type | Bi-amp or passive, externally switchable |
| Crossover Frequency | 1.3 kHz |
| Power Handling | Passive : 1,600W continuous 3,200W programme 6,400W peak Bi-amp LF : Bi-amp HF : |
| Maximum SPL | 136 dB SPL peak |
| Sensitivity | 98 dB SPL (1W at 1 m) in passive mode |
| Low Frequency Driver | 2 x JBL 2226H 15″ (380 mm) Vented Gap Cooled woofer |
| High Frequency Driver | 1 x JBL 2453H 4″ (102 mm) voice-coil, neodymium magnet compression driver |
| Nominal Impedance | Passive: 4Ω Bi-amp LF: 4Ω Bi-amp HF: 8Ω |
| Enclosure | Trapezoidal, 18 mm 13-ply birch/poplar laminate plywood |
| Enclosure Tuning | Designed for Crown amplifiers and dbx DriveRack |
| Mounting Options | 12 x M10 Suspension Points |
| Handle or Carrying Type | 2 x side handles |
| Finish | Black DuraFlex finish |
| Grille | Powder coated, black, 14-gauge perforated steel with acoustically transparent charcoal foam backing |
| Input Connectors | 2 x Neutrik Speakon NL-4 |
| Dimensions (H x W x D) | 1,066 x 568 x 573 mm |
| Weight | 51 kg |
