RSL’s 4th of July sale is live through July 10, and the bigger your home theater upgrade, the more you can save. RSL calls this its “Biggest 4th of July Sale Ever,” with automatic tiered discounts on eligible RSL speakers, Speedwoofers, and complete home theater systems. There is no coupon code to enter. The discount is applied at checkout based on the subtotal of eligible RSL products before taxes and shipping.

The sale runs from July 3 through July 10, 2026, or while supplies last.

Here’s how the tiered savings work:

• Spend $300 to $600: save 7%
• Spend $601 to $1,000: save 10%
• Spend $1,001 to $2,000: save 17.76%

That 17.76% figure is the attention-grabber, but the structure of the sale matters. This is not a flat discount where every product gets the same markdown. The better value comes when your cart crosses into a higher tier, which means this promotion is most useful for shoppers buying a subwoofer plus speakers, a complete surround sound package, or multiple RSL products at once.

There are a few limits to know before building a cart. The discount applies only to eligible RSL products, including speakers, Speedwoofers, and home theater systems. AV receivers and other non-RSL products are excluded. The sale also applies only to in-stock items and cannot be combined with other promotional offers or discount codes unless otherwise stated.

For buyers looking at a single subwoofer, the Speedwoofer 10E is the easiest place to start. It is normally listed at $339, which puts it in the 7% tier and brings it down to about $315 before taxes and shipping. The 10E is RSL’s entry-level Speedwoofer, but it still uses a 10-inch woofer and is rated at 300 watts RMS and 800 watts peak. RSL lists its frequency response at 26Hz to 200Hz anechoic, or around 22Hz to 200Hz with room gain.

The Speedwoofer 10S MKII also qualifies for the 7% tier on its own. At its regular $499 price, the sale brings it to roughly $464 before taxes and shipping. The 10S MKII steps up to 400 watts RMS, 1,020 watts peak, a cast-frame 10-inch woofer, and an LFE mode that RSL lists as reaching down to 22Hz. For many living rooms and mid-size theater spaces, this is likely the more natural upgrade over the 10E.

The Speedwoofer 12S is where the discount gets more interesting for single-product shoppers. At its regular $885 price, it lands in the 10% tier, bringing it to about $796.50 before taxes and shipping. RSL lists the 12S with a 16Hz to 200Hz frequency response, making it the model to consider for larger rooms or buyers who want deeper bass output for movie soundtracks.

The simple pricing examples look like this:

• Speedwoofer 10E: $339 → about $315 after 7% off
• Speedwoofer 10S MKII: $499 → about $464 after 7% off
• Speedwoofer 12S: $885 → about $796.50 after 10% off

The bigger savings start to make more sense when speakers enter the picture. RSL’s CG3M 5.1 systems are listed as starting at $908, which puts a basic surround package in the 10% tier and brings it to about $817 before taxes and shipping. The CG3M line uses compact bookshelf and LCR speakers with front-firing slot ports, aramid-fiber woofers, and a scratch-resistant matte finish. That makes it a practical option for smaller rooms, apartments, or buyers who want a compact surround system without using large tower speakers.

The 17.76% tier is where shoppers building a more complete system will see the biggest difference. A larger package with a Speedwoofer 12S, multiple CG-series speakers, or a more ambitious surround setup can cross the $1,001 threshold quickly. That does not automatically make a bigger cart the smarter buy, but it does mean the sale is better suited to planned system builds than impulse purchases.

Custom-install buyers may also want to look at RSL’s architectural speaker options. The C34E MKII in-ceiling speaker is listed at $149 each, while the W25E in-wall speaker is listed at $199 each. Both are aimed at home theater and immersive audio systems, including Dolby Atmos and DTS:X setups, and both are designed to help direct sound toward the listening position.

The main takeaway is simple: this sale is better for system builders than casual shoppers. A single Speedwoofer gets you a modest discount, while a full home theater package or multi-speaker order can unlock the higher savings tiers. For anyone already planning an RSL upgrade, the July 4 sale is worth checking before it ends on July 10.