Buy L-Acoustics SB28

Buy L-Acoustics SB28 High Power Subwoofer Lot of 4 | musicconcertevent.com

If you are looking to buy L-Acoustics SB28 subwoofers for your live event setup, touring rig, rental inventory, or installed system, this lot gives you four of the most respected dual 18-inch subs in professional audio in one transaction. Each unit comes with its original cover and has been inspected for working order. These are not refurbished. They have been used in professional environments and carry the expected cosmetic wear that comes with that. They work as they should.

This listing is for four L-Acoustics SB28 units sold together. If you are building a PA system, stocking a rental fleet, or replacing aging subwoofers, this lot is structured to give you real value at a competitive price. musicconcertevent.com sources professional audio equipment for sound engineers, event companies, AV resellers, venue operators, DJs, and production teams across the USA and Europe.

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What Is the L-Acoustics SB28?

The SB28 is a high-power bass reflex subwoofer from L-Acoustics, built around two 18-inch neodymium direct-radiating transducers. It is designed to operate in both standard and cardioid configurations, which gives system engineers control over directional bass output. This matters on live stages and in venues where low-frequency management directly affects mix quality and audience experience.

The cabinet is built from premium grade Baltic birch plywood. The nominal impedance is 4 ohms. Usable bandwidth runs from 25 Hz to 117 Hz at -10 dB, 30 Hz to 90 Hz at -6 dB, and 33 Hz to 70 Hz at -3 dB. Maximum SPL is 142 dB peak at 1 meter under half-space conditions, measured with pink noise at a crest factor of 4. RMS power handling is 655 W, calculated using mean impedance across the usable bandwidth.

Dimensions are 1300 mm wide, 550 mm tall, and 700 mm deep. Each unit weighs 205 lb. The connector is a single 4-point speakON input. Finish is dark grey brown, Pantone 426 C.

This is not a consumer sub. It is designed to pair with L-Acoustics amplified controllers such as the LA8, and it is intended for use in professional touring, installed sound, and large-format event production.

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SB28 Full Technical Specifications

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Estimated Retail Value and Resale Margin

The SB28 is a flagship touring subwoofer from a brand with strong market recognition. Rental companies and production companies buying used professional subwoofers at this price point typically recoup investment through event bookings within a defined rental cycle. The brand name alone reduces friction when quoting to clients who specify L-Acoustics systems.

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Real Profit Example for AV Resellers and Rental Companies

A rental company purchasing this lot of 4 SB28 units at approximately $8,000 total and renting each unit at $150 to $250 per event day would need between 20 and 27 rental days across the lot to recover the full purchase price. At that point every subsequent rental is margin. A production company reselling the lot after use could list individually on platforms like GearSource or Reverb at market rate, depending on condition at time of sale.

These numbers are illustrative. Actual returns depend on your market, pricing strategy, and how frequently the units are deployed.

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What Is a PA Package and Where Does the SB28 Fit?

A PA package, or public address package, is the full signal chain that takes a source audio signal and delivers it to an audience at the required volume and coverage. A complete PA package typically includes line array or point source tops, subwoofers, amplification, processing, and cabling.

The SB28 is the subwoofer component in that chain. It handles the low-frequency reproduction that tops cannot cover. In large outdoor events, festival stages, nightclubs, arenas, and touring productions, subwoofers like the SB28 are what create physical impact in the mix. Without adequate sub coverage, a PA system sounds thin regardless of how good the tops are.

When building or expanding a professional PA system, the SB28 pairs with L-Acoustics amplified controllers. The LA8 controller, as referenced in product pairing documentation, is one common amplification choice for this sub. For additional reference on professional system builds and amplifier pairing, resources from specialists such as sasphonik.com and bostonprosounds.com cover configuration guidance in detail.

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Best PA Systems and Amplifiers for Event Professionals

For event companies, rental operators, and new entrants building a PA inventory, here is what to know before purchasing:

The SB28 is a touring-class product. It is appropriate for:

• Outdoor festivals and large stage events
• Mid to large capacity indoor venues
• Corporate events requiring high-output low-frequency reinforcement
• Touring productions where L-Acoustics tops are already in use

If you are a new event company or PA reseller starting out, the SB28 at this price point is an efficient entry into professional sub inventory. The dual 18-inch neodymium drivers and 142 dB peak SPL output mean you are not compromising on performance.

For amplification, the L-Acoustics LA8 is a recognized pairing for this cabinet. Before purchasing any amplifier for the SB28, confirm impedance matching and that the controller supports the 4-ohm nominal load of this sub.

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What to Consider Before Starting a PA Event Company

Before purchasing professional audio equipment for a rental or event production business, address the following:

• Transport and logistics. At 205 lb per unit, the SB28 requires proper road cases, rigging points where applicable, and a vehicle or transport arrangement capable of handling the weight.
• Amplification. The SB28 is a passive cabinet. It requires external amplification. Budget for an appropriate L-Acoustics controller or compatible professional amplifier.
• Insurance. Professional audio equipment operating at commercial events requires adequate insurance coverage.
• Storage. Baltic birch plywood cabinets at this size need climate-controlled or at minimum dry storage.
• Trained personnel. Operating systems at 142 dB peak SPL in public settings requires qualified sound engineers.

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Where to Sell PA Equipment and Subwoofer Lots

If you are purchasing this lot as an investment or to resell individual units, the following platforms are where professional audio equipment moves:

• GearSource: Industry-specific marketplace used by touring and production professionals
• Reverb: Large secondary market for professional and consumer audio gear
• eBay: High-volume general marketplace with strong audio equipment category
• Facebook Marketplace: Effective for local and regional sales
• Amazon: Viable for certain product types with established demand

For rental inventory, listing your company on event production platforms and building relationships with venue owners, event planners, and booking agents is the long-term revenue path.

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Condition Description

These are used L-Acoustics SB28 subwoofers. They may have minor scratches and cosmetic blemishes from normal professional use. All 4 units are in good working order. They have not been opened or disassembled. No additional parts, wiring, or accessories are included in this sale beyond the units and covers as described.

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Why musicconcertevent.com Is Different

Most online PA equipment listings give you specs and a price. They do not tell you what you are actually buying, what condition means in practice, or what the equipment is designed to do. At musicconcertevent.com, every listing includes real condition disclosure, full technical specifications from the manufacturer, clear shipping terms, and return policy details in plain language. You know exactly what you are receiving before you pay.

We source professional audio equipment that has operated in real production environments. The SB28 units in this lot are not warehouse pulls or display stock. They are working professional subwoofers with documented specifications and honest condition reporting.

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Why Buy From musicconcertevent.com

musicconcertevent.com is positioned to serve the professional audio market in the USA and across Europe. Our inventory is targeted at DJs, sound engineers, event organizers, AV resellers, rental companies, venue operators, and production companies who need equipment that performs at professional level without the new-unit price tag.

We provide free local pickup where applicable, standard ground shipping to the 48 contiguous states, and freight options with transparent fee disclosure. Our return window is clear, our restocking fee is stated upfront, and our staff are focused on resolving any issue before it becomes a dispute.

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Comparison: musicconcertevent.com vs Competitor Platforms

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Shipping Information

We ship via standard ground to all 48 contiguous states on most items. Alaska, Hawaii, Puerto Rico, and the U.S. Virgin Islands are not included in standard ground shipping, but we offer shipping rates to those locations and to all Caribbean Islands. We do not ship to P.O. boxes.

For freight orders delivered to residential addresses, a $75 residential delivery fee and a $75 lift gate fee apply. These are in addition to the standard shipping charge. Freight orders delivered to limited access areas including hospitals, schools, construction sites, gated communities, airports, churches, storage units, and similar locations carry an additional $75 fee.

Ground shipments typically deliver within 3 to 5 business days from our warehouse. Freight shipments typically deliver within 3 to 7 business days. Factors outside our control including weather, carrier delays, and high postal traffic may affect these timelines.

For international shipping to Europe and other regions outside the USA, contact us directly for a freight quote. We work with freight partners capable of international delivery for commercial orders.

We do not offer local pickup for standard orders. Local pickup is available only for truckload sales. All other orders are processed and shipped online only.

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Return Policy

After receiving your order, contact us within 3 to 4 business days if there is a problem. Returns must include the item in its original packaging. Return shipping is the buyer’s responsibility. Where the same item is available, we will exchange a defective unit within the 3 to 4 business day return window. Partial refunds are available if the buyer chooses to keep the item and repair it independently. A 20% restocking fee applies to all returns. Items sold as-is or as-parts are final sale and cannot be returned.

Please contact us before filing any claim. We will work to resolve any issue directly.

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Freight Delivery Fees Summary

These fees are charged in addition to the base shipping fee.

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EU Availability

This lot is available for purchase from buyers in Europe. Contact musicconcertevent.com directly for international freight pricing and lead times. The SB28 is a widely used system in European touring and installed sound markets, and we have the ability to coordinate freight for commercial orders shipping internationally.

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Frequently Asked Questions

Where can you buy L-Acoustics SB28 subwoofers online?

You can buy L-Acoustics SB28 subwoofers at musicconcertevent.com. This listing offers a lot of 4 used units in good working condition with covers included, available for freight shipping across the 48 contiguous states and internationally by quote.

How can I find a reliable used PA equipment seller?

Look for sellers who disclose condition specifically, include full manufacturer specifications, state their return policy clearly, and have a defined shipping structure. musicconcertevent.com provides all of these for every listing.

Where can I buy used professional audio equipment online at a competitive price?

Platforms including Boston Pro Sounds, Sas Phonik and musicconcertevent.com carry used professional audio equipment. For lot purchases and professional PA systems, musicconcertevent.com is structured specifically for the pro audio buyer.

Can I inspect the SB28 units before buying?

We do not offer local pickup or in-person inspection for standard orders. Local pickup is available only for truckload sales. All standard orders are online only. Condition is described in full detail on each listing.

What is a PA audio system?

A PA system, or public address system, is the complete audio reproduction chain used to amplify sound for an audience. It includes a source signal, mixing, processing, amplification, and speaker cabinets. In professional live sound, PA systems typically include line array or point source tops and subwoofers such as the SB28 for low-frequency coverage.

What amplifier do I need for the L-Acoustics SB28?

The SB28 has a nominal impedance of 4 ohms and an RMS power handling of 655 W. It is designed for use with L-Acoustics amplified controllers. The LA8 is a recognized pairing for this cabinet. Confirm compatibility with your amplification before purchase.

Do you ship the SB28 lot to Europe?

Yes. Contact musicconcertevent.com directly for international freight pricing and estimated delivery times for EU and other international destinations.

What is the SB28 dual 18-inch subwoofer used for?

The SB28 is used in professional live sound reinforcement. It is suited for large-format outdoor events, touring productions, installed sound in large venues, and high-output event systems where 142 dB peak SPL and cardioid subwoofer configuration are required.

Is there a minimum order for this listing?

This listing is for a lot of 4 units sold together. The lot is not split for individual unit sales under this listing.

What is the return window for this purchase?

You have 3 to 4 business days from receipt to contact us about any issue. A 20% restocking fee applies. Return shipping is the buyer’s responsibility. Items sold as-is are final sale.

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Legal Disclaimer: All product information is based on seller-provided details and manufacturer published specifications. Condition descriptions reflect the seller’s assessment at time of listing. musicconcertevent.com makes no warranty beyond what is stated in the return policy above. Retail value and resale margin figures are estimates for informational purposes only and do not constitute financial advice.