8X + KA18 Short Throw 8" Coaxial PA Speaker System | Sinbosen
Audio Combination

08X + KA18 Short Throw 8" Coaxial PA Speaker System | Sinbosen

Item No.: 08X / KA18
Description

The 08X + KA18 is a compact, pole-mount sound system built for venues where space is tight and performance is not negotiable. A true point-source coaxial top with 100° axisymmetric dispersion sits atop a high-output 18-inch subwoofer, delivering full-range, concert-grade sound from a footprint that fits almost anywhere. No truss. No fly-ware. No heavy lifting — one person can set it up in under five minutes.
 

Usable bandwidth (-10 dB)
60 Hz-20 kHz
Maximum SPL
129 dB
Nominal directivity (-6 dB)
100° axisymmetric
Monitor angle
35°
Transducers
LF: 1 × 8″ cone driver
HF: 1 × 1.5″ diaphragm compression driver, neodymium
Acoustical load
LF: bass-reflex, progressive vent design
HF: conical waveguide
Nominal impedance
8 Ω
Connectors
IN: 1 × 4-point speakON
LINK: 1 × 4-point speakON
Rigging and handling
1 handle
4 threaded inserts
one 35 mm pole socket
Weight (net)
12 kg / 26.5 lb
Cabinet
FIrst grade Russian birch plywood
Front
Coated steel grill
Neutral 3D fabric
Finish
Dark grey brown
 
Low frequency limit (-10 dB)
32 Hz
Maximum SPL
138 dB
Nominal directivity (-6 dB)
Standard or cardioid
Transducers
1 ×18''
Acoustical load
Dual bass-reflex
Laminar venting technology
Nominal impedance
8 Ω
Connectors
2 × 4-point speakON
Rigging and handling
4×handles 
4-point captive rigging system
1 ×25mm pole socket 
Weight (net)
52 kg/115 lb
Cabinet
FIrst-grade Russian birch plywood
Front
Coated steel grill
acoustically neutral 3D fabric
Rigging components
Steel with anti-corrosion coating
Finish
Dark grey brown

 



1.Points & Advantages of Pole-Mounting

Exceptional Phase Alignment & Acoustic Integration

Coaxial Advantage: The 08X features coaxial design, aligning high and low frequencies on a single axis with 100° axisymmetric directivity. This eliminates crossover interference in near-field applications.

Seamless Crossover: The 08X frequency response extends down to 60 Hz, while the KA18 dips down to 32 Hz. Driven by Sinbosen DSP amplified controllers (e.g., A-4X / A-12X1) with dedicated factory presets, vertical pole-alignment provides flawless crossover transition and impactful low-end extension.
 

Minimal Footprint & Clean Sightlines

Compact Footprint: Instead of deploying heavy trusses or rigging, the system relies on the KA18’s solid weight (~52 kg / 115 lbs) as a stable base, requiring only a simple mounting pole.

Low Visual Intrusion: Weighing just 12 kg (26.5 lbs), the 08X is sleek and unobtrusive. It elevates the sound above the crowd without blocking LED screens, stage sightlines, or event backdrops.
 

Quick & Easy "Plug-and-Play" Setup

Single-Person Deployment: Simply screw an M20/35mm pole into the KA18 top mount and slide the 08X onto the pole. The entire system can be set up by one technician in under 5 minutes without fly-ware or heavy lifting gear.

Adjustable Height: The pole height can be quickly adjusted based on seated or standing audiences, ensuring high-frequency clarity passes over front-row heads to cover the full depth of the venue.
 

High Output Relative to Size

Despite its compact 8-inch enclosure, the 08X delivers a maximum SPL of 129 dB, while the SB18 produces up to 136 dB. This combination delivers concert-level clarity and dynamic headroom from a remarkably small footprint.


2. Typical Use Cases

Application / Scenario
Why Choose the 08X + KA18 Pole Mount?
Corporate Events & Product Launches
Crystal-clear speech intelligibility paired with premium background music playback—all while maintaining an elegant,
non-intrusive aesthetic.
High-End Weddings & Private Parties
Covers everything from background lounge music and speeches to high-energy DJ sets and live band performances.
Small Livehouses & Jazz Clubs
Delivers "Concert Sound" warmth and detail, ideal for acoustic, jazz, pop, and intimate vocal performances.
Touring / Large Stage Fill
Acts as a high-fidelity side-fill, front-fill, or DJ monitor on larger concert stages.
Multi-Purpose Halls & Auditoriums
Perfect for temporary setups where ceiling rigging is not available, offering easy tear-down without damaging interior decor.


3. Coverage Capacity & Scale

Audience Size: A single stereo pair (1× 08X + 1× KA18 per side) comfortably covers 150 to 400 people in indoor or small outdoor settings.

Throw Distance:

Primary Coverage: 10 to 20 meters (~30 to 65 ft). The 100° point-source dispersion retains pristine high-frequency detail within this range.

For deeper venues (>20–25 meters), adding 08X delay speakers or upgrading to a line source system (e.g., Ka208/KA10/KA15) is recommended.
 


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