

RTX-2512/RTX-2520
The RTX Series from [B4] Beta Four dual 15″ bass reflex consists of four models, each with distinct characteristics & applications. RTX 215 series is built to deliver smooth, clean, accurate, distortion-free sound.
For the ultimate in performance and simplicity, a pair of 15″ mid bass speakers delivers high-level music and powerful bass. Drivers handling an amazing power up to 2000 watts of continuous power.
Large open ducts minimise port turbulence, and the heavily braced enclosure assures tight, solid bass. Along with this, the finest compression driver provides smooth, clear mids and highs.
| Specification | RTX-2512 | RTX-2520 |
|---|---|---|
| System Typе | Dual 15″ 2 Way Bass Reflex | Dual 15″ 2 Way Bass Reflex |
| Power Rating (Continuos) | 1300 Watt | 2000 Watt |
| Frequency Response | 35Hz-20KHz | 33Hz-20KHz |
| Sensitivity SPL 1W/1M | 103 dB | 105 dB |
| Nominal Impedance | 4Ω | 4Ω |
| Low Freq. Speaker | 2×15″ Speaker, 600 Watt each, MS Frame, 3″ Voice Coil, 190x90x25(mm) magnet | 2×15″ Speaker, 1000 Watt each, MS Frame, 3″ Voice Coil, 190x90x25(mm) magnet |
| High Freq. Unit | 1xHorn 8″x12″ with 60 Watt, HF Driver, 1-inch voice coil, titanium diaphragm | 1xHorn 8″x12″ with 60 Watt, HF Driver, 1-inch voice coil, titanium diaphragm |
| Crossover Protection | Passive Network for HF Driver | Passive Network for HF Driver |
| Port | Free Flow Flared | Free Flow Flared |
| Input Connectors | 2x Speakon NL4 | 2x Speakon NL4 |
| Dimensions | Width (Front): 546mm (21.5″ in) Width (Back): 381mm (15″ in) Height: 1182mm (46.5″ in) Depth: 482mm (19″ in) | Width (Front): 546mm (21.5″ in) Width (Back): 381mm (15″ in) Height: 1182mm (46.5″ in) Depth: 482mm (19″ in) |
| Weight (Kg) | 70 Kg | 78 Kg |
◆ CONSTRUCTED OF TOP QUALITY HARDCORE PLYWOOD WITH [B4] TECHNIQUE OF HIGH QUALITY TEXTURE PAINT FINISH (RESISTANT AGAINST SPLASH OF WATER, SCRATCH AND HIGH TEMPERATURE)
◆WRAP-AROUND 16-GAUGE STEEL GRILL LINED WITH ACOUSTICALLY TRANSPARENT FOAM FOR PROTECTION AND APPEARANCE.
◆ AFFORDABLE. ADVANCED DESIGN IN ITS CLASS.
◆ DESIGNED WITH STEEL SIDE HANDLES FOR EASY HANDLING. EMBOSSED WITH BRAND NAME LOGO ON BOTH SIDE OF COLUMN.