VTX B28

可级联双18英寸低音炮

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VTX B28

VTX B28是JBL Professional下一代双18英寸低音炮，旨在补充该公司的旗舰VTX全频声学增强系统，能够在全球最苛刻的演出中提供无与伦比的低频表现。B28配备JBL差异驱动换能器、独特的端口设计，以及与JBL VTX A系列产品相同的工业设计。无论是悬挂还是地面堆叠，采用全向或心形配置，它同样理想。简单快速的装配、丰富的配件选择和软件支持，使得B28成为租赁、视听及巡演公司，以及高端固定安装的卓越选择。

简单的整体双点装配系统允许最多16个B28机箱的悬挂阵列。机箱顶部的三处M20极杆安装附件可以与A12、A8和V20系统的标准底板配件连接，以创建地面堆叠系统。B28系统专门由Crown I-Tech HD放大器供电，并完全集成到JBL的软件生态系统中。

特点

  • Delivers transparent, linear bass response down to 25 Hz
  • JBL Differential Drive woofers
  • Large double-flared port for greater extension and reduced turbulence
  • Simple 2-point spring-loaded rigging system
  • FEA-optimized enclosure
  • Front and rear NL4 connectors
  • Support for omnidirectional or cardioid modes
  • Acoustically compatible with all VTX full-range products
  • Flexible accessory options

评论

"The definition and stereo imagery of the boxes were next level. The B28 Subs were so much, I had to lower them by about 10db during my sound check and also for showtime, which I almost never do for Hip Hop performances. To be clear! There were a lot of subs, but very punchy and smooth." 
—Courtney Taylor (FOH for G Eazy)

下载

Specifications
  版本 语言 大小 上传日期
file type icon VTX B28 Spec Sheet
en 版本 C, 更新: 12月 2020
C  en  379.5 KB 12月 2020
Manuals
  版本 语言 大小 上传日期
file type icon VTX B28 User Manual
en 版本 C, 更新: 7月 2023
C  en  8.1 MB 7月 2023
file type icon VTX B28 Rigging Manual
en 版本 A, 更新: 7月 2023
A  en  14.7 MB 7月 2023
CAD Drawings
  版本 大小 上传日期
file type icon VTX B28 Customer Drawings
版本 A, 更新: 12月 2020
A  1.1 MB 12月 2020
file type icon VTX B28 Revit Files
版本 2.0, 更新: 10月 2022
2.0  8.9 MB 10月 2022
file type icon VTX B28 Sketchup Files
版本 2.0, 更新: 10月 2022
2.0  1.2 MB 10月 2022
file type icon VTX B28 Archicad Files
版本 1.0, 更新: 7月 2022
1.0  1.4 MB 7月 2022
Software
  大小 上传日期
download icon for Venue Synthesis Venue Synthesis
发布: 1月 2025
1月 2025
download icon for Performance Manager 3 Performance Manager 3
发布: 7月 2024
7月 2024
Declaration of Conformity
  版本 语言 大小 上传日期
file type icon VTX B28 EU Declaration of Conformity
en 版本 A, 更新: 2月 2021
A  en  206.4 KB 2月 2021
Ease Data
  版本 大小 上传日期
file type icon VTX B28 EASE GLL
版本 1.0, 更新: 12月 2020
1.0  1.3 MB 12月 2020
Preset Libraries
  版本 大小 上传日期
file type icon VTX B28 Preset Library
版本 1.0.0, 更新: 8月 2020
1.0.0  576.0 KB 8月 2020
Service Notes
  版本 语言 大小 上传日期
file type icon VTX B28 Spare Parts
en 版本 A, 更新: 4月 2026
A  en  69.3 KB 4月 2026

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零件与服务

性能

频率范围 (-10dB) 25 Hz - 80 Hz (Preset: VTX B28 80)
覆盖范围 Omnidirectional or Cardioid
Maximum Peak Output 141dB (Preset: VTX B28 80)
System Amplification Crown Audio I-Tech HD
系统阻抗 4 ohms
低频驱动单元 (2) JBL 2288H-M 18-inch woofers
Enclosure Finnish birch plywood, Black DuraFlex finish, four integral recessed handles
Suspension / Mounting Captive suspension plates, captive pins, spring-loaded mechanism, 2-step safety lock
尺寸（高 x 宽 x 厚） 508 mm x 1324 mm x 750 mm
20 in x 52.1 in x 29.5 in
净重量 87 kg (191.8 lbs)

配件

VTX B28 SB | Suspension Bar
VTX B28 SB Main photo
较大的图像
VTX B28 SB detail thumbnail #1 VTX B28 SB detail thumbnail #2 VTX B28 SB detail thumbnail #3 VTX B28 SB detail thumbnail #4

Highlights:

  • Versatile suspension bar accessory for B28 subwoofer
  • Single-point and dual-point support
  • Secondary safety attachment points included
  • Support for (16) B28 enclosures
  • Lightweight, fully symmetric design
  • Shackle Size: 5/8 inch

Included:

  • (1) VTX B28 SB Suspension Bar
  • (2) 5/8 in 4.5 T Shackle
说明书
VTX B28 ACC | Accessory Casterboard and Cover for VTX B28
VTX B28 ACC Main photo
较大的图像
VTX B28 ACC detail thumbnail #1 VTX B28 ACC detail thumbnail #2 VTX B28 ACC detail thumbnail #3 VTX B28 ACC detail thumbnail #4

Highlights:

  • Transportation kit for VTX B28
  • Includes protective cover and caster board
  • Handle cutouts and rear panel access flap
  • Tour-grade casters
  • Stackable for convenient storage
  • Rotating locking cam mechanisms for secure attachment to B28 enclosures

Included:

  • (1) Caster board for VTX B28
  • (1) Padded protective cover for VTX B28 (cover part number: 5123768-00)
说明书
VTX B28 VT | VTX B28 竖直传输配件
VTX B28 VT Main photo
较大的图像
VTX B28 VT detail thumbnail #1 VTX B28 VT detail thumbnail #2 VTX B28 VT detail thumbnail #3 VTX B28 VT detail thumbnail #4

主要特点：

  • 可承载最多四个 VTX B28 扬声器箱的垂直运输车
  • 符合卡车运输尺寸
  • 内置堆叠功能，便于存储
  • 轻质铝合金设计
  • 重型巡演级脚轮
  • 与 VTX A12 VT GND 兼容

包含内容：

  • (1) VTX B28 VT 垂直运输车
说明书
VTX B28 VT CVR | Vertical Transporter Cover for B28
VTX B28 VT CVR Main photo
较大的图像
VTX B28 VT CVR detail thumbnail #1 VTX B28 VT CVR detail thumbnail #2 VTX B28 VT CVR detail thumbnail #3

Highlights:

  • Heavy-duty soft cover for VTX B28 stacks
  • Covers three or four VTX B28 enclosures
  • Includes input-panel flaps for testing purposes
  • Clear see-through pocket for shipping labels
  • Handle cutouts for easy transportation
  • Heavy-duty industrial-grade zippers
  • Foldable design for storage

Included:

  • (1) VTX B28 VT CVR Cover
说明书
VTX B28 GND | Ground Stack Accessory for VTX B28
VTX B28 GND Main photo
较大的图像
VTX B28 GND detail thumbnail #1 VTX B28 GND detail thumbnail #2 VTX B28 GND detail thumbnail #3 VTX B28 GND detail thumbnail #4

Highlights:

  • Improves stability of ground stacks built on the B28 subwoofer
  • Attaches directly to B28 integral rigging
  • Simple two-part design
  • Lightweight

Included:

  • (2) VTX B28 outriggers (left/right)
说明书
VTX A12 VT GND | Vertical Transporter Ground Stack
VTX A12 VT GND Main photo
较大的图像
VTX A12 VT GND detail thumbnail #1 VTX A12 VT GND detail thumbnail #2 VTX A12 VT GND detail thumbnail #3 VTX A12 VT GND detail thumbnail #4
Highlights:
  • Outrigger system for VTX A12 VT, VTX B28 VT and other compatible Vertical Transporters
  • Four screw jacks included for height adjustment
  • Innovative spring-based angle-set mechanism
  • Compact and lightweight design
  • Range: -15 to +5 degree
  • Vertical Transporter not included
Included:
(1) VTX A12 VT GND
说明书

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VTX B28

可级联双18英寸低音炮

立即购买
HARMAN Professional Solutions:
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hhave_question
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