低音喇叭箱 | 500W 峰值功率 | 200mm | 主動低音喇叭
Prima APBX 8 AS2 主動低音喇叭配備 8 吋驅動單元，擁有專用高效能放大模組，提升所有被動箱技術，並具備 2S²（雙側雙聲音）設計、即插即用端子塊及超緊湊尺寸。放大模組提供 250W RMS 輸出，採用 He-li 技術（高效能 / 低阻抗），無需 DC-DC 電壓增壓器，實現高達 90% 的效率，接近 D 類理論極限。新型輸入階段 DBT（動態低音跟蹤）技術可充分發揮 He-Li 放大器功率，無論在高音量下都能享受緊實且動感的低音。去除電壓增壓器的設計使新型雙音圈驅動單元得以實現，並繼承了 Prima 低音喇叭的所有技術背景，但具有超低阻抗，確保與 He-Li 技術的完美協同，最大化放大器、揚聲器及封閉箱的結合，獲得強勁且清晰的低頻音效。控制部分完整，提供最佳的低頻調節功能。Butterworth 低通濾波器（12dB/Oct.）具可變切割頻率（50-200 Hz），可在使用 AP bit 處理器的情況下繞過。可調低音增益控制（0 ÷ 6 dB）於 45 Hz 允許用戶強化頻譜下方的響應。多極接頭上的高電平喇叭輸入便於與 OEM 音響系統集成，而 RCA 的低電平輸入則專為與後市場音源連接設計。自動開關功能 ART（自動遙控開關）可根據來源的遠程信號、高電平輸入的電壓變化或兩個輸入的音頻信號來控制。相位控制（0-180°）則是設備的另一重要功能。SSP（Sub Smart Plug）端子塊提供單一 Plug&Play 連接器，方便安全地拆卸箱體。
Subwoofer Box | 500 W Peak Power | 200 mm | Active Subwoofer
The Prima APBX 8 AS2 active subwoofer, with the 8-inch driver, features a dedicated high-performance amplification module that enhances all the passive box technologies, such as the 2S² (2 Sides / 2 Sounds) design, the Plug & Play terminal block and ultra-compact size. The amplification module, with power outputs of 250W RMS, is developed with he-li technology (high efficiency / low impedance), which thanks to the absence of the DC-DC voltage booster reaches the impressive 90% efficiency level, very close to the theoretical limit of the D-Class. New input stage DBT (Dynamic Bass Tracking) technology allows 100% use of the He-Li (High-Efficiency Low Impedance) amplifier power and to enjoy a tense and dynamic bass even at very high listening volumes. Eliminating the voltage booster was made possible thanks to the development of the new dual coil drivers, which inherit all the technological background of the Prima subwoofers, but differ for the ultra-low impedance. This feature ensures a perfect synergy with the He-Li (High-Efficiency Low Impedance) technology, maximizing the combination of amplifier, speakers, and sealed box, to obtain low, powerful, and crisp frequencies. The controls section is complete and provides an optimal regulation of the low-frequency emission in the car cabin. The Butterworth low pass filter at 12dB/Oct. with variable cut-off frequency (50-200 Hz) can be bypassed when used with an AP bit processor with pre-out output dedicated to the sub. The adjustable bass-boost control (0 ÷ 6 dB) at 45 Hz allows the user to emphasize the response on the lower side of the spectrum. The high-level speaker-in input on the multi-pole connector eases the integration with OEM audio systems while the low-level input on RCA is dedicated to the connection with after-market sources. The subwoofer automatic turn on/off function ART (Automatic Remote Turn-On) can be configured to be controlled by the source remote signal, by the voltage variation on the high-level input, or by the audio signal on both inputs. Phase control (0 - 180°) completes the equipment. The SSP (Sub Smart Plug) terminal block is provided with a single Plug&Play connector to be able to disconnect the box easily and safely.