Raise the soundbar’s bass or subwoofer level using its app, remote, or on-device controls, then re-pair the subwoofer if bass stays weak.
Most soundbars ship with bass set to a neutral middle point, which rarely suits movie night or bass-heavy music. Whether you want to increase bass on a soundbar for deeper explosions or punchier beats, the fix lives in settings you can reach in under a minute. The two controls people mix up most — the soundbar’s own bass setting and the connected subwoofer’s level — do different jobs, and knowing which one you’re adjusting decides whether the change works.
Start With The Bass Control On The Soundbar Itself
Soundbar bass settings are typically adjusted through the brand’s app, the remote, or buttons on the unit. Bose Smart Soundbars, for example, use a single control for both bass and treble, adjustable in increments of 10 from -100 to 100.
In the Bose app, the path is short:
- Open the Bose app and tap Audio.
- Select your product under My Bose if the app asks.
- Use the +/– control next to Soundbar to raise or lower bass or treble.
Bose SoundTouch 300 owners work from the remote instead: press BASS, tap Volume + to increase bass or Volume – to cut it, then press BASS again to save. Holding BASS until the SoundTouch indicator blinks twice resets bass to the factory default.
Why The Subwoofer Level Is A Separate Control
A soundbar’s bass setting and a connected subwoofer’s level are not always the same thing. Bose and JBL expose them separately in some models, and raising the soundbar’s bass alone may not touch the subwoofer’s output at all.
If a bass module is connected to your Bose Smart Soundbar, the Bose app shows a separate Bass Module slider underneath the soundbar controls. Raising that slider boosts the subwoofer’s contribution directly, which is usually where the perceived “punch” comes from. Adjust both controls when you want a clear jump in low-end output.
Re-Pairing The Subwoofer When Bass Stays Weak
When the bass level is already maxed out but output still sounds thin, the connection between soundbar and subwoofer is often the culprit. Many systems pair automatically when both units power on — the subwoofer’s LED turns solid to confirm the link. When that doesn’t happen, manual pairing restores it.
Pairing steps are model-specific and only work between compatible units, so check your brand’s steps before pressing anything. Common patterns include:
- TCL Q Series: Power on both units; the soundbar auto-pairs. If that fails, press the subwoofer’s ON/OFF or PAIR button until it flashes, then power on the soundbar. A solid amber LED confirms success.
- JBL Bar 500/700/800/1000: Press and hold the subwoofer’s pairing button until its LED flashes white, then hold the soundbar remote’s bass button for over three seconds and press VOL –.
- Denon HEOS: Press the subwoofer’s PAIR button until the status LED flashes blue, then press the soundbar’s PAIR button. A solid blue LED means connected.
- Klipsch Bar 48: Hold the subwoofer’s PAIR button for 3 seconds, then hold the soundbar’s PAIR button for 3 seconds or until the subwoofer’s status light turns solid blue.
Connect both units’ power cords before pairing. If the LED keeps blinking during pairing, that signals failure — restart the process from scratch rather than pressing more buttons. One caution: during automatic pairing, don’t press the subwoofer’s PAIR button at all; TCL explicitly warns that manual intervention interrupts the auto flow.
What Actually Moves Bass The Most
Room placement and source content change how much bass you hear, but the biggest lever is usually the subwoofer level control. A subwoofer tucked into a corner or against a wall couples with the room and sounds noticeably louder for free.
Testing content matters too: stream a track or movie scene you know has deep bass, then adjust while it plays so you hear the change live rather than guessing between menus. If your soundbar came without a subwoofer and the built-in drivers simply can’t produce deep lows, no setting will manufacture output the hardware doesn’t have. In that case, a soundbar with a dedicated wireless subwoofer is the real upgrade.
Bose’s official support documentation covers tone controls for its Smart Soundbar and SoundTouch families in both U.S. and Canadian variants, and the steps above reflect that guidance. Other brands maintain separate instructions for different regions and product lines, so matching your exact model matters. For a rundown of bass-focused models worth upgrading to, see our tested roundup of the best bass soundbars available now.
Bose’s guide to adjusting tone controls on Smart Soundbars confirms the app path and the -100 to 100 range with increments of 10.
References & Sources
- Bose. “Adjusting the tone controls on your Smart Soundbar.” Details the Bose app path and the -100 to 100 bass/treble range in steps of 10.