L-Acoustics KS28 Professional Dual 18-Inch Subwoofer
L-Acoustics KS28 professional dual 18-inch subwoofer for sale from Sound Pro Tech in France. Designed for demanding professional sound reinforcement, the KS28 provides low-frequency reinforcement for touring systems, concert productions, rental inventories, festivals and professional audio installations.
The L-Acoustics KS28 is a passive subwoofer that requires compatible external amplification and processing. It can form an important part of a complete professional PA system, supporting the main loudspeakers with dedicated low-frequency reproduction.
At Sound Pro Tech, we supply professional audio equipment to sound engineers, rental companies, production businesses, venues and system integrators throughout France, Europe and internationally. Contact us for current availability, condition information, photographs, pricing and shipping options.
L-Acoustics KS28 Professional Subwoofer
The L-Acoustics KS28 is designed for professional applications where substantial low-frequency performance is required.
Its enclosure contains two 18-inch neodymium cone drivers and uses a bass-reflex design with L-Acoustics L-Vents technology.
The manufacturer specifies a low-frequency limit of 25 Hz at −10 dB with the KS28_100 preset. Maximum peak sound pressure level is specified at 143 dB under the manufacturer’s stated measurement conditions.
These specifications should be considered alongside the requirements of the complete sound system. Actual performance depends on the deployment, amplification, processing and acoustic environment.
Professional Low-Frequency Reinforcement
Low-frequency reproduction is an important part of many professional sound systems.
Live music, electronic music and recorded playback can contain significant bass information. Dedicated subwoofers allow the system designer to address this part of the programme separately from the main loudspeakers.
The L-Acoustics KS28 can be incorporated into a carefully designed system where dedicated low-frequency reinforcement is required.
Correct placement and system alignment remain important for achieving a balanced result.
L-Acoustics KS28 for Professional PA Systems
A complete professional PA system involves loudspeakers, amplification, processing, cabling and suitable deployment equipment.
The L-Acoustics KS28 forms the subwoofer section within such a system.
It should be selected according to the intended applications and the main loudspeakers being used. The required quantity depends on the system design rather than a fixed ratio that applies to every installation.
Customers can provide their existing equipment list when requesting a quotation from Sound Pro Tech.
Dual 18-Inch Subwoofer Design
The KS28 uses two 18-inch drivers within one enclosure.
For professional buyers, this format provides a clearly defined component around which a subwoofer inventory can be organized.
When comparing equipment, consider the complete package rather than driver size alone. Amplification, processing, condition, handling accessories and the intended deployment all affect the purchasing decision.
Sound Pro Tech can provide information about the specific units currently offered.
Bass-Reflex Enclosure and L-Vents
The L-Acoustics KS28 features a bass-reflex enclosure incorporating the manufacturer’s L-Vents technology.
This vent design is intended to reduce turbulence noise at the ports.
For buyers assessing the product, the enclosure design is one part of the overall specification. It should be considered together with the manufacturer’s operating instructions and the supporting equipment required.
Refer to the official documentation when planning a professional system.
External Amplification Requirements
The L-Acoustics KS28 does not contain a built-in power amplifier.
It requires compatible external amplification and the appropriate manufacturer processing. L-Acoustics lists the LA12X amplified controller on its KS28 product page.
When requesting a quotation, specify whether you need subwoofers only or a package that includes amplification.
Controllers, racks, cables and other supporting equipment should be confirmed separately on the quotation.
Standard and Cardioid Configurations
The KS28 supports standard and cardioid configurations through suitable cabinet arrangements and processing.
A cardioid configuration can help control sound radiated behind a subwoofer array.
This requires the appropriate multi-cabinet deployment and manufacturer settings. It should not be assumed that any grouping of cabinets will produce the intended result.
A qualified system engineer should determine the arrangement suitable for the venue and production requirements.
L-Acoustics KS28 for Touring Systems
Touring companies need equipment that can be prepared, transported and deployed repeatedly.
A clearly organized subwoofer inventory helps technicians identify the equipment required for each production.
The L-Acoustics KS28 can be considered as part of a touring package that includes compatible amplification, cabling and transport accessories.
Buyers should plan the complete package so that the equipment can be prepared efficiently before leaving the warehouse.
Equipment for Professional Rental Companies
Rental companies frequently supply equipment for different types of events.
Their inventory may support concerts, corporate productions, festivals and temporary installations.
A L-Acoustics KS28 purchase can be considered when expanding an existing subwoofer inventory or preparing another complete system.
The quantity purchased should reflect real booking requirements and the supporting resources available. Additional cabinets are most useful when suitable amplification, accessories and transport capacity are also available.
Live Concert Applications
Concert sound reinforcement requires the main loudspeakers and subwoofers to work together as a complete system.
The subwoofer section supports low-frequency content from instruments and playback.
The L-Acoustics KS28 can be incorporated into a concert system designed for the venue and programme.
System alignment, level settings and deployment should be managed by experienced audio professionals using the relevant manufacturer guidance.
Festival Sound Systems
Festival productions can involve several stages, changing performers and demanding production schedules.
The equipment purchase should therefore account for preparation, transport, deployment and recovery after the event.
A KS28 package may include cabinets, compatible controllers, speaker cables and handling accessories.
Confirm the exact equipment schedule before ordering. Delivery should allow sufficient time for inspection and system preparation before the production begins.
Professional Venue Installations
The L-Acoustics KS28 can also be considered for professional installations requiring dedicated low-frequency reinforcement.
Potential applications include concert venues, theatres, entertainment spaces and multipurpose performance facilities.
An installation designer should assess the room, available cabinet positions, main loudspeakers and operating requirements.
The equipment quotation identifies what is being supplied. The installation design establishes how those components should be deployed and commissioned.
Ground and Flown Deployment
The KS28 is designed to support ground and flown deployment using suitable manufacturer accessories.
The proposed configuration should be reviewed against current documentation.
Flown systems require approved rigging equipment, appropriate calculations and qualified personnel.
For ground deployment, consider available space, access routes and the resources needed to move and position the equipment.
Ask whether the required accessories are included in the quotation.
Used L-Acoustics KS28 for Sale
Buying a used L-Acoustics KS28 may be an option for companies expanding an established inventory.
Used equipment should be assessed according to its actual condition, available service history and the terms of the sale.
Customers can request photographs and information about the units offered by Sound Pro Tech.
For multiple cabinets, ask whether the condition is consistent across the lot and whether individual identification details are available.
Equipment Condition and Inspection
Condition matters when purchasing professional audio equipment.
Before ordering, request details about the inspection and functional testing completed on the available units.
Ask about any known repairs or replaced components and whether supporting records are available.
Cosmetic appearance and operational condition should be considered separately. Photographs help show visible wear, while testing information addresses different aspects of the equipment.
Photographs of the Available Units
Customers can request photographs of the actual equipment offered.
Useful views include the front, rear, sides and identification labels.
If covers, dollies or other accessories are included, request photographs of those items as well.
For larger orders, an itemized equipment list helps connect the photographs and condition information to the cabinets being supplied.
Covers and Transport Accessories
Transport accessories can make an important difference to the practical use of a subwoofer inventory.
Ask whether the KS28 offer includes covers, dollies or other handling equipment.
Accessories shown in an advertisement should not be assumed to be included unless the quotation confirms them.
Where accessories are supplied separately, include them in the overall budget and confirm their quantity and condition.
Upgrade an Existing Sound System
Some buyers already own suitable main loudspeakers and supporting equipment.
In these situations, purchasing additional subwoofers may form part of an inventory expansion or system upgrade.
Provide the exact models of your existing equipment when contacting Sound Pro Tech.
Your technical team should review the proposed package so that the purchase addresses the intended requirement and can be integrated into a clearly documented system.
Building a Complete Professional Package
A complete package may require more than the subwoofer cabinets.
Depending on the project, buyers may also need amplified controllers, racks, signal distribution, speaker cables, rigging equipment and transport accessories.
Ask for an itemized quotation identifying every component included.
This makes it easier to compare offers and understand what remains to be sourced before the equipment is ready for use.
Sound Pro Tech Professional Audio Equipment
Sound Pro Tech supplies professional audio equipment from France.
Our product offering can include loudspeakers, line arrays, subwoofers, amplifiers, mixing consoles, audio processors and related equipment.
We work with buyers preparing professional sound systems for rental, production and installation applications.
Availability varies, so customers should confirm the current stock of any product before placing an order.
Shipping Throughout France
Customers in France can contact Sound Pro Tech for delivery information.
Provide the complete address, required quantity and details of the receiving location.
Shipping arrangements depend on the order and destination. Confirm delivery charges, access requirements and the estimated schedule before proceeding.
Allow time for equipment intake and technical checks before its first planned deployment.
European Shipping
Professional buyers elsewhere in Europe are welcome to enquire about L-Acoustics KS28 availability.
Send your delivery address and specify whether you require cabinets only or a larger package.
The quotation should identify equipment pricing, transport costs and applicable commercial terms.
Delivery arrangements should be confirmed for the actual order rather than assumed from a general shipping statement.
International Shipping Enquiries
Customers outside Europe can contact Sound Pro Tech to discuss available shipping options.
For a useful quotation, provide the full destination and equipment quantity.
Ask which transport charges and responsibilities are included. Applicable import costs and documentation should be confirmed for the transaction.
Coordinate delivery with the receiving team so that access and unloading arrangements are understood.
Why Buy from Sound Pro Tech?
Sound Pro Tech provides a point of contact for professional buyers seeking audio equipment from France.
Customers can request information about the available units, their condition and the components included in an offer.
A clear quotation helps buyers review the equipment with their technical and purchasing teams.
Our sales enquiries focus on defining the requested package and confirming the actual terms before an order proceeds.
Buy L-Acoustics KS28 in France
If you are looking for a L-Acoustics KS28 for sale in France, contact Sound Pro Tech for current availability.
Tell us how many cabinets you need, which supporting equipment you already own and where the order will be delivered.
Request photographs, condition information and an itemized quotation.
Customers throughout Europe and internationally are also welcome to enquire.
L-Acoustics KS28 for Sale at Sound Pro Tech
The L-Acoustics KS28 can be considered by professional buyers building or expanding a dedicated subwoofer system.
Whether your purchase supports touring productions, rental packages or a venue installation, the equipment should be selected as part of a complete system plan.
Contact https://soundprotech.shop/ for current pricing, stock, photographs, condition details, included accessories and shipping options.
https://www.l-acoustics.com/products/ks28/






















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