Italy customer feedback: TN24 + BN30 driven by DSP D4-2000 and DSP D4-3000
A customer in Italy recently reported using a combination of Sinbosen DSP D4-2000 and DSP D4-3000 amplifiers with TN-24 point-source speakers and BN-30 subwoofers; the system operates stably, and the power matching is excellent.
| TN-24 Advantages: |
| Horn-loaded full-range design: Innovative 2×12"/1.4" "horn-in-horn" configuration delivering exceptional dynamic range. |
| Interchangeable/rotatable horns: The standard 60°×40° horn can be quickly swapped for a 90°×50° version; both are rotatable to suit various coverage requirements. |
| Dual-mode switching: Rear-mounted passive/bi-amp switch offers flexibility for different amplifier configurations. |
Full-range capability: Operates from 65 Hz, allowing for standalone use without the need for a subwoofer. |
Versatile mounting: Supports pole mounting, suspension, cluster arrays, and even 360° circular configurations. |
Compact footprint: Front panel measures just 70×40 cm, yet achieves a maximum SPL of 143 dB within this compact size. |
BN-30 Advantages: |
| Hybrid Enclosure Design (Horn-loaded Bass Reflex Hybrid): Combines the benefits of bass reflex and horn-loading—delivering high efficiency, long throw, and deep low-frequency extension. |
| V-shaped Dual 15-inch Layout: Two 15" drivers are arranged in a V-configuration on either side of the baffle, with the bass reflex port positioned in the center. |
| Full Front-Baffle Acoustic Coupling: Utilizes the entire front panel to enhance the sound field while minimizing air friction and energy loss. |
| Reverse Driver Mounting: Drivers are mounted with magnets facing outward to optimize heat dissipation, allowing waste heat to escape more easily than with internal mounting. |
Compact and Efficient: Weighing just 38.7 kg, it strikes an excellent balance between size, weight, and output. |
Perfect Stacking: The front panel dimensions match the TN-24 (706 × 446 mm) for seamless stacking; integrated grooves allow the feet to lock securely in place during stacking. |
Key advantages of the TN-24 + BN-30 combination:
Front panels are nearly identical in size, creating a unified visual appearance; centers of gravity align when stacked, ensuring excellent physical stability.
Coupling two BN-30 units allows the low-frequency SPL to better match the TN-24’s 143 dB output.
Seamless frequency crossover, phase alignment, and optimized DSP presets.
143 dB full-range output combined with 133 dB sub-bass output delivers immense dynamic range.
Supports various configurations, including pole-mounting, stacking, flying (suspension), arraying, and 360° circular arrangements.
The DSP D4-2000 and DSP D4-3000 are best-selling products from Sinbosen. These Class D digital amplifiers feature an ultra-slim 1U chassis and an exceptionally lightweight design. They support stable operation at 2Ω and incorporate active PFC (Power Factor Correction) and soft-switching technology. With an ultra-wide operating voltage range of 90V–270V, they are compatible with power grids worldwide, including in regions with unstable power supplies. The DSP module is sourced from Germany's ALLDSP and supports remote control across Windows, Mac, and iOS platforms, offering comprehensive DSP functions such as crossover, delay, EQ, and limiting. They utilize genuine Neutrik XLR and Speakon connectors for professional-grade, reliable connectivity. Comprehensive protection mechanisms—including thermal, over-current, short-circuit, and over-voltage protection—are complemented by temperature-controlled fans for quiet operation.
When using the DSP D4-2000 and DSP D4-3000 to drive the TN-24 and BN-30 combination, precise DSP tuning of crossover, delay, and limiting ensures stable and reliable performance results.
