JBL Professional JBL-3830

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三路双功率放大/无源ScreenArray®影院扬声器系统

JBL Professional 3830三路双功率放大/无源ScreenArray®影院扬声器系统非常适合容纳100至150个座位的影院。当今一流的影院需要在礼堂的每个座位都获得完美覆盖，具有宽动态范围和扩展带宽，以及几乎无法察觉的失真水平。数字音轨需要一流礼堂的音响系统，能够准确再现录音的音效。

3830 ScreenArray在紧凑的系统中提供流畅准确的影院音轨再现。ScreenArray号筒采用专利设计，可以补偿穿孔屏幕造成的高频扩散，大幅改善观众覆盖效果。

3830 ScreenArray通过先进工程技术得到增强。JBL最新的技术创新被集成到系统设计中，提供卓越的覆盖范围、最大功率处理能力和均匀的声学功率输出，同时失真极低。ScreenArray设计提供理想的功率响应和指向性控制，各声学段之间的过渡无缝衔接。

特点

Three-way ScreenArray® design for maximum output, optimal coverage and minimum distortion
Bi-amplified or fully passive switchable operation (tri-amp option available)
SSC™ Screen Spreading Compensation
Molded Optimized Aperture Waveguide technology for ultra-low distortion and extremely uniform frequency response
Low-frequency section features dual 15” transducers with ribbon wire voice coils for low distortion and high efficiency
Flat front waveguide design for easy baffle wall installation
Shallow profile for minimum behind-screen depth requirements
Connection on top of the speakers for easy wiring behind screen
HF driver protection

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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)