Gold Member Since 2010
Audited Supplier
Guangzhou Skytone Audio Co., Limited

18" Subwoofer Speaker Box, Sound System, Speaker Box manufacturer / supplier in China, offering Stx828s PA Sound System Dual 18" Subwoofer Speaker Box, 3 Pin XLR Connector for Audio Peripherals, 12-32 Channels XLR Stage Wire Cable, Audio Snake Cable Box and so on.

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Supplier Homepage Product Professional Speaker Stx828s PA Sound System Dual 18" Subwoofer Speaker Box

Stx828s PA Sound System Dual 18" Subwoofer Speaker Box

FOB Price: US $480-500 / Piece
Min. Order: 2 Pieces
Min. Order FOB Price
2 Pieces US $480-500/ Piece
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Port: Guangzhou, China
Production Capacity: 300PCS/Month
Payment Terms: T/T, Western Union, Money Gram

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Basic Info
  • Model NO.: STX828S
  • Activity: Passive
  • Speaker System: Optional Combination
  • Application: Commercial, Professional Performance
  • Model Number: Stx828s
  • Frequency Range: 32 Hz-250 Hz
  • Rated Maximum Spl: 138 dB Spl Peak
  • Input Connectors: Two Nl4
  • Trademark: Skytone
  • Specification: CE
  • HS Code: 8518220000
  • Noise: <95dB
  • Operation Mode: Wire / Remote Control
  • Speaker Material: Birch Plywood
  • Certification: CE, RoHS
  • Power Rating: 2000 W
  • Sensitivity (1W/1m): 99 dB
  • Nominal Impedance: 4ohm
  • Color: Black
  • Transport Package: Carton Case or Flight Case
  • Origin: Guangzhou
Product Description
STX828S pa sound system dual 18" subwoofer speaker box 

Dual 18" Bass Reflex Subwoofer
18" high power subwoofer system
18" subwoofer speaker box 
speakers subwoofer 
sound system 
bass bin 
pa system 

With us your money in safe, your business in safe.

1. 12 years experience in pro audio business, with the excellent before or after-sales servive.
2. Professional research department and engineer assured the super quality 
3. Installed super ferrite magnet speakers inside 
4. 2000Watts rated power
5. Imported polyurea paint, which is  Anti-corrosive, waterproof, scratch-resistant, environmental 
without bad smell.


A dual 18" high power subwoofer system in a front-loaded, vented enclosure designed for
maximum low-frequency performance.
The STX828 has an optional wheel kit.


1. 18 inches Super Woofer for extended low-frequency output.
2. Large port area for reduced distortion.
3. Imported polyurea paint 
4. 14-Gauge steel grille lined with acoustically transparent cloth.

System type2 way 2X18" subwoofer
Frequency Range ( -10 dB)32 Hz-250 Hz
Frequency Response (± 3 dB)37 Hz-120 Hz
Sensitivity (1W/1m)99 dB
Power Rating2000 W / 4000 W / 8000 W
Rated Maximum SPL138 dB SPL Peak
Nominal Impedance
Input ConnectorsTwo NL4
Operational ModesSubwoofer
Paint564 mm x 1137 mm x 714 mm
Cabinet Imported polyurea paint
Recommend amplifier 18mm birch plywood 
WarrantyI--tech 18000 (2X1800Watts) Digital amplifier
Dimensions (H x W x D)564 mm x 1137 mm x 714 mm
Net Weight82KG


1. Large outdoor live concerts performance
2. Mid-size and Small Venues
3. Small-scale stage performance
4. Night club, bar
5. Church
6. Wedding
7. Hall, Stadium, theater, Auditorium
8. Professionals and sound system hire companies
9. Other entertainment performance place
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