How Can We Help?

Once your order ships, we'll email you a tracking number automatically. Use it to follow your package the whole way to your door.

Contact us right away with your order number and a photo of what arrived. We'll sort out a correction as quickly as possible.

Message us as soon as you notice an issue. If your order hasn't shipped yet, we'll do our best to update it before it goes out.

Package protection covers replacement — not refunds — if your order is lost, stolen, or damaged in transit. It applies to orders placed directly with DS18 Sound Bar, and claims are reviewed before a replacement ships.

• High-value claims may require a police report for suspected theft.
• Replacements are one-time — a lost replacement isn't eligible for a second one.
• Coverage only applies where our Terms of Service have been followed.

New units purchased directly from us carry a two-year limited warranty. It doesn't cover damage from accidents, misuse, incorrect installation, or unauthorized repairs, and coverage doesn't extend to products bought through unauthorized third-party sellers.

Email us a short description of the issue along with proof of purchase at info@ds18soundbar.com, and we'll walk you through the next steps.

We typically ask for 5 to 7 business days once your item arrives at our facility, though most units are evaluated well before that window closes.

Generally, yes — unless the product arrived damaged, was faulty out of the box, or the issue was on our end. In those cases, we'll cover it.

We accept returns, with a few things to keep in mind:

• Unused items in original condition carry a small restocking fee.
• Used or opened items may carry a higher fee, since they can't be resold as new.
• Original shipping costs aren't refundable.

It's not strictly required, but we do ask that you include it where possible, and pack everything securely so it arrives to us undamaged.

We process most returns within a couple of business days of receiving them. Your bank or card issuer may then take an additional 3–5 business days to post the refund.

Yes — items must reach us within 30 days of purchase to qualify for a refund. Purchases made through another retailer follow that retailer's own return policy.

Yes, on orders shipped within the contiguous United States when purchased directly from us. Alaska, Hawaii, and international orders may carry additional shipping costs and fees.

Most orders reach customers across the U.S. within a few business days. We aim to ship orders the same day they're placed; weekend orders go out the next business day.

We work with a mix of major carriers to get you the best combination of speed and reliability for your location.

We work to keep stock available, but demand can outpace supply on some items. Backordered items ship as soon as new stock arrives.

Set the gain using a multimeter, or a distortion/O-scope tool if you have one, to make sure output stays clean. Most subwoofers do well with an 80–125Hz low-pass filter, a subsonic filter around 25–35Hz, and bass EQ left flat at 0dB.

Clipping happens when an amplifier is pushed past its clean output limit, distorting the waveform. It's one of the most common causes of speaker and subwoofer damage.

Both positive terminals tie into the same internal connection, and the same goes for the negatives. This just makes it easier to wire multiple subwoofers to one amplifier.

No. Running an amplifier below its rated impedance goes against manufacturer specs and can void your warranty.

Start with your radio's EQ flat — skip bass boost or loudness modes. Tune your gain to a level that's loud but clean, then drop it to roughly half that for the first 24–36 hours of regular listening. After that break-in period, you can bring your settings back up.

This is usually a sign of clipping. A distorted signal tries to move the cone faster than it physically can, which can cause it to bottom out or jam in the voice coil gap.

Neither is inherently better — the coil configuration just changes the impedance your amplifier sees. Which one is right for you depends on your amp's capabilities and how many subwoofers you're wiring together.

We don't currently design custom enclosures or advise on custom bandpass builds, but we're happy to share generic cut lists sized for our subwoofers, free of charge.

Check the recommended enclosure specs listed on each subwoofer's product page — airspace, port tuning, and mounting depth all matter for getting the sound you want.

Yes — we carry prefabricated enclosures sized for our most popular subwoofers if you'd rather skip the build.