JBL GC2 双 18 英寸高性能超低频扬声器专为需要声音补强、现场扩声及出色低频响应的酒吧、夜店和音乐餐厅而设计。
JBL GC2 采用两只创新的 18 英寸双音圈低音单元，具备大冲程能力与高功率承载能力，可在极低失真的前提下呈现延伸而强劲的低频。Differential Drive® 技术与磁隙钕磁体锥形结构的应用，实现了更出色的散热性能、轻量化结构、更大的冲程能力以及更强的低频表现，从而满足严苛应用场合的需求。
JBL GC2 重新定义了音箱的内部结构，采用“波罗的海”桦木板材，可保持更低的低频延伸，并承受大动态、高强度输出，非常适合对低频响应要求较高的顶级场所。为提升便利性与灵活性，JBL GC2 配备可拆卸双层支脚（橡胶 + 塑料），既适用于固定安装，也支持水平与垂直方向的堆叠应用。倾斜式接线盒使音箱可紧贴墙面安装，无需为线缆布放预留额外空间。NL4 Neutrik Speakon® 连接器支持多只扬声器的环通连接，只需极少工作量即可完成系统扩展。
目前仅在中国市场销售。
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| Model Name | Dual 18-Inch-High Performance Subwoofer |
| Frequency Range (-10 dB)¹ | 30 Hz – 250 Hz 1: Measurement conducted under half-space (2π) conditions. |
| Frequency Response (±3 dB)¹ | 38 Hz – 135 Hz 1: Measurement conducted under half-space (2π) conditions. |
| Rated Input Power³ | 3600 W / 7200 W / 14400W 3: Testing conducted for 2 hours under pink noise with a crest factor of 6 dB, in accordance with IEC standards. JBL is consistently dedicated to product updates. It integrates new materials, manufacturing processes, or improved designs into existing products without additional notifications. As a result, some of the current JBL products may differ from the descriptions provided in product literature. Unless otherwise stated, these updated products perform equivalently or surpass the original designs in terms of performance or specifications. |
| 额定阻抗 | 4 ohms |
| Sensitivity (1w@1m)¹ | 102 dB 1: Measurement conducted under half-space (2π) conditions. |
| Maximum SPL² | 137dB continuous average (149 dB peak) 2: The maximum sound pressure level is calculated based on rated power. Peak, unweighted SPL, measured under half-space conditions at 1 meter using broadband pink noise with a 12dB crest factor. |
| 低频驱动单元 | 2 × 18"; 460 mm (18") diameter; 100 mm (4") dual-coil, dual-gap neodymium Differential Drive ® VGC™ driver |
| Box Structure | 18 mm birch plywood, fitted with 2 handles at each side |
| 网罩 | 1.8 mm thick with acoustically transparent black cloth backing |
| Input Connector | 2 x NL4 Neutrik Speakon® |
| Pin Assignments | Low Frequency: 1+, 1- |
| 尺寸（高 x 宽 x 厚） | 585 mm × 1162 mm × 1033 mm |
| 净重量 | 111.15 kg |
版本 B,
更新: 4月 2024
版本 B,
更新: 4月 2024
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