JBL Professional JBL-3830

较大的图像

三分频双功放/无源 ScreenArray® 影院扬声器系统

JBL Professional 3830 三分频双功放/无源 ScreenArray® 影院扬声器系统适用于 100 至 150 座的影院。当今一流影院要求观众席每个位置都能获得完美覆盖，具有宽动态范围与扩展带宽，且失真低至不可闻。数字音轨要求一流放映厅的音响系统能够如实还原录制的原始声音。

3830 ScreenArray 以紧凑型系统实现平滑、精准的影院音轨还原。ScreenArray 号角采用专利设计，可补偿穿孔屏幕引起的高频扩散，显著改善观众覆盖效果。

3830 ScreenArray 采用先进的工程技术。JBL 最新技术创新均集成于系统设计之中，提供卓越的覆盖性能、最大功率承载能力与均匀的声学功率输出，同时失真极低。ScreenArray 设计具备理想的声功率响应与指向性控制，各声学分段之间过渡平滑无缝。

特点

三分频 ScreenArray® 设计，提供最大输出、最优覆盖和最低失真
支持双功放驱动或全无源工作模式切换（提供三功放选项）
SSC™ 屏幕扩散补偿
模铸优化孔径波导技术，实现超低失真和极为均匀的频率响应
低频部分采用双 15 英寸低音单元，配备扁线音圈，实现低失真和高效率
平面前波导设计，便于安装于障板墙内
薄型机身设计，最大限度减少屏幕后方所需的安装深度
接线口位于音箱顶部，便于在屏幕后方布线
高频驱动单元保护

下载

Specifications

	语言	大小	上传日期
3830 Spec Sheet 更新: 12月 2021		664.3 KB	12月 2021
3830 Spec Sheet 更新: 12月 2021		606.4 KB	12月 2021

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零件与服务

性能

System
Frequency Range	30 Hz – 18 kHz
Nominal Coverage	90º horizontal, -30º/+20º vertical
Net Weight	67.1 kg (147 lbs)
Shipping Weight	78.1 kg (172 lbs)
Dimensions (H x W x D)	173.4 mm x 762 mm x 450 mm (68.25 in x 30 in x 17.75 in)
Passive System
Crossover Frequencies	450 Hz, 2 kHz
System Sensitivity	105 dB SPL, 2.83 V @ 1 m (3.3 ft)
Nominal Impedance	4 ohms
Minimum Impedance	2.7 ohms @ 150 Hz
Input Power Handling (AES 100-Hour Rating)	600 W
Bi-Amp System
Input Power Handling (AES 2-Hour Rating)	LF: 500 W M/HF: 125 W
LF Component Electronics – Model 3839
Low Frequency Transducers	2 x M115-8A, 380 mm (15 in) diameter, 64 mm (2.5 in) edgewound ribbon voice coil transducers mounted in a 4509 LF enclosure
Input Connectors	Push terminal binding posts
Nominal Impedance	4 ohms
Minimum Impedance	2.7 ohms @ 150 Hz
Input Power Handling (AES 2-Hour Rating)	500 W, 600 W recommended amplifier
Free-Field Sensitivity	104 dB SPL, 2.83V @ 1 m (3.3 ft)
Dimensions (H x W x D)	883 mm x 762 mm x 450 mm (34.75 in x 30 in x 17.75 in)
Net Weight	56 kg (123 lbs)
Shipping Weight	64.5 kg (142 lbs)
M/HF Component Electronics – Model 3830-M/HF
Mid Frequency Transducer (Ships Fully Assembled)	1 x 195H, 165 mm (6.5 in) diameter, 38 mm (1.5 in) voice coil
High Frequency Transducer (Ships Fully Assembled)	1 x 2414H, 25 mm (1 in) polymer diaphragm, neodymium compression driver
Input Connectors	Screw terminal barrier strip
Device Nominal Impedance	MF: 8 ohms HF: 8 ohms
M/HF Nominal Impedance	4 ohms
M/HF Minimum Impedance	3 ohms @ 1850 Hz
Device Sensitivity	MF: 104 dB SPL, 2.83 V @ 1 m (3.3 ft) HF: 106 dB SPL, 2.83 V @ 1 m (3.3 ft) M/HF Free-Field Sensitivity 105dB, 2.83 V @ 1m
M/HF Input Power Handling (AES 2-Hour Rating)	125 W
Dimensions (H x W x D)	852 mm x 762 mm x 360 mm (33.5 in x 30 in x 14.1 in)
Net Weight	11.1 kg (24 lbs)
Shipping Weight	13.6 kg (30 lbs)