This document is the user manual of ULTRABASS BX4210A/BX4210, mainly introducing the safe use, installation and attention of the product.
This manual begins with important safety information, warning users to keep the unit away from water, heat sources, and to ensure proper ventilation and grounding. It also stresses that only qualified personnel should open the chassis and that the supplied power cable and fuse must be used.
The guide then describes the front‑panel controls (GAIN, OUTPUT, BASS, MIDDLE, TREBLE, DEEP, BRIGHT, SHAPE, etc.), back‑panel connections (speaker outputs, Neutrik® Speakon® compatible connector, line‑out, DI, send/tuner, return), installation procedures, speaker‑impedance recommendations, and the unique ULTRABASS low‑frequency processor and waveform filter functions. Technical data such as power output, frequency response, dimensions, and power‑supply requirements are listed at the end. This manual is written in Chinese.
| Power Output | 450 W @ 4 Ω |
|---|---|
| Speaker Units | 2 × 10 in BUGERATM aluminum bass drivers |
| Sensitivity | 93 dB @ 1 W / 1 m |
| Frequency Response | 42 Hz – 16 kHz |
| Active Input Impedance | ≈ 220 kΩ |
| Passive Input Impedance | ≈ 750 kΩ |
| Line‑Out Output Impedance | ≈ 100 Ω |
| Power Supply (US/Canada) | 120 V~, 60 Hz, 6 A |
| Dimensions (H × W × D) | 247 mm × 260 mm × 143.5 mm |
| Weight (net) | ≈ 39 kg |