PASSIVE · SUBWOOFERS
SRX828S
Dual 18-inch Passive Subwoofer
SRX828S is a dual 18” subwoofer for concert, touring, or installed use. Featuring a wide stance for splaying top boxes, indexing feet for stacking in both the standard and cardioid position, and a 141dB max SPL, the SRX828S is an ideal solution for musicians, bands, and DJs, concert use, public speaking, or installations such as performance venues, corporate spaces, educational facilities or houses of worship. Tunings and presets are available for Crown ITech HD.
- Continuous (RMS)
- 1,200 W
- CONTINUOUS (RMS)
- Peak power
- 4,800 W
- PEAK POWER
- Max SPL
- 135 dB
- MAX SPL
- Frequency range
- 30 Hz – 150 Hz
- FREQUENCY RANGE
Supplied and supported in Pakistan by KYAF, the official HARMAN Professional distributor.
AT A GLANCE
Specifications
- 1,200 W
- Continuous (RMS)
- 4,800 W
- Peak power
- 135 dB
- Max SPL
- 30 Hz – 150 Hz
- Frequency range
- (2x) JBL 2279H
- Low-frequency driver
- 98dB
- Sensitivity
- 4 Ohm
- Impedance
- 0.06 kg
- Weight
| System Type | Passive dual 18”, subwoofer system |
|---|---|
| Maximum SPL Output | 129dB (Continuous), 135dB (Peak) |
| Frequency Range (-10 dB) | 30hz - 150hz |
| Frequency Response (-3 dB) | 47Hz - 120Hz |
| Sensitivity | 98dB |
| System Power Rating | 4800W Peak, 2400W Program, 1200W Continuous |
| Nominal Impedance | 4 Ohm |
| Inputs | NL4 Input, NL4 Loop-thru (+/-1 or +/-2 Selectable) |
| Operational Modes | Passive |
| LF Driver | (2x) JBL 2279H |
| Crossover Frequency | 80hz |
| Enclosure | 18mm Duraflex coated plywood |
| Casters | Accepts JBL WK-4S Kit |
| Handles | 8 |
| Finish | Obsidian Duraflex™ finish |
| Grille | Powder coated, Obsidian, 14-gauge perforated steel with acoustically transparent black cloth backing |
| Dimensions (H x W x D) | 681mm x 1205mm x 574mm (26.79in x 47.42in x 22.57in) |
| Weight | 0.06 kg |
| Shipping Weight | 147.0 (66.5 kg) |
| SRX828S | EON618 | |
|---|---|---|
| System Type | Passive dual 18”, subwoofer system | Self powered 18” Subwoofer |
| Maximum SPL Output | 129dB (Continuous), 135dB (Peak) | 134 dB |
| Frequency Range (-10 dB) | 30hz - 150hz | 31Hz –150Hz |
| Frequency Response (-3 dB) | 47Hz - 120Hz | 42.5Hz – 150Hz |
| System Power Rating | 4800W Peak, 2400W Program, 1200W Continuous | 1000W Peak, 500W Continuous |
| LF Driver | (2x) JBL 2279H | 1 x JBL 618H 457mm (18”) woofer with 2” voice coil |
| Crossover Frequency | 80hz | Selectable; 80 Hz, 100 hz, or 120 Hz |
| Handles | 8 | 2 |
| Grille | Powder coated, Obsidian, 14-gauge perforated steel with acoustically transparent black cloth backing | Powder coated, Obsidian, perforated steel with acoustically transparent black cloth backing |
| Dimensions (H x W x D) | 681mm x 1205mm x 574mm (26.79in x 47.42in x 22.57in) | 582mm x 668mm x 645mm (22.9in x 26.3in x 25.4in) |
| Weight | 0.06 kg | 35.5 kg |
| Shipping Weight | 147.0 (66.5 kg) | 41.2 kg |
| Inputs | NL4 Input, NL4 Loop-thru (+/-1 or +/-2 Selectable) | 2 x Balanced XLR-1/4” combination inputs |
| Enclosure | 18mm Duraflex coated plywood | Duraflex coated plywood |
FOR DESIGNERS AND INSTALLERS
Downloads
- PDFSRX828S Spec SheetPDF · 2.15 MB · version 11_11_19, updated: Dec 2019
- PDFJBL 2025 PPA BrochurePDF · 8.45 MB · version B, updated: Aug 2025
- PDFSRX800 Passive Series CompliancePDF · 139 KB · updated: Oct 2020
- ZIPAudio ArchitectZIP · 522 MB · version 2.55.4, Windows
- ZIPSRX800 Passive I-Tech HD TuningsZIP · 23.7 KB · updated: Oct 2020
- ZIPSRX800 Passive I-Tech 4x3500HD TuningsZIP · 41.3 KB · updated: Oct 2020
- PDFSRX Passive Bi-amp tunings TablePDF · 2.69 MB · updated: Oct 2020
- JPGSRX800 DriverJPG · 158 KB · updated: Apr 2019
JBL's own files, opened here on the KYAF site.
SRX828S
Dual 18-inch Passive Subwoofer
DESIGN
Every part of the SRX828S, labelled.
FEATURES
What the SRX828S brings.
SRX828S is a dual 18” subwoofer for concert, touring, or installed use. Featuring a wide stance for splaying top boxes, indexing feet for stacking in both the standard and cardioid position, and a 141dB max SPL, the SRX828S is an ideal solution for musicians, bands, and DJs, concert use, public speaking, or installations such as performance venues, corporate spaces, educational facilities or houses of worship. Tunings and presets are available for Crown ITech HD.
WHERE IT WORKS
Applications
PLANNING A SRX828S SYSTEM?
Tell us the room. We'll size the system.
Send the space, the audience and the budget. A KYAF engineer will work out what you need and quote it delivered in Pakistan.
JBL PROFESSIONAL
SRX828S