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how do i know if my subwoofer is actually working

Ask By Dustin P.1,531 views

bought a soundbar with a wireless sub and honestly i cant tell if the sub is doing anything. how do i test it

Brand
Samsung
Model
HW-Q600C
Connection
HDMI Or Optical
Browser
Chrome 130
Sample Rate
48 kHz
Output Channels
2 channels
Bass And SubwoofersSubwoofer
Tool used in this discussionBass TestFind how deep your woofer or subwoofer can play
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Short Answer

Play low tones from 60 Hz down to 30 Hz in the Bass Test. A working sub gets louder and you can feel the room shake. If it stays silent, check pairing and the sub level.

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Amit Malhotra
Amit MalhotraAudio Team
Bass Performance Validator · 7+ years experience · Answered Oct 6, 2026

A sub is easy to judge once you play pure low tones. Music hides it, but a clean tone does not. Starting at 60 Hz and stepping down to about 30 Hz, a working subwoofer should get noticeably stronger as you feel the air move, while small soundbar drivers fade out.

If you hear nothing below roughly 80 Hz, the sub is either unpaired or its level is turned down.

Step By Step Fix
  1. Open the Bass Test and start at 60 Hz at a low volume
  2. Step down through 50, 40 and 30 Hz and note where the sound fades or disappears
  3. Check the sub's indicator light, solid usually means paired and blinking means searching
  4. Raise the sub level in the soundbar remote or app by a few steps
  5. Re-pair the sub using the pairing button on the back, following the maker's manual
Sources
  1. W3C Web Audio API

Checked by Xavier Cruz on . How we verify answers

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Community Replies 3

  • Trevor NguyenCommunity Member

    play a 40hz tone and put your hand near the port, you should feel air moving. thats how i check mine

  • Austin ColeCommunity Member

    dont forget the crossover setting on the receiver, mine was set so high the sub did nothing

  • Jack ThorntonCommunity Member

    I did the same with a 40 Hz tone and felt the air at the port. Make sure the sub is plugged in and the gain on the back is not at zero.

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Amit Malhotra
Written and tested by

Amit Malhotra

Bass Performance Validator at Sound Test

Amit Malhotra is the Bass Performance Validator on the Sound Tester Audio Team. Focuses on sub-bass rattling diagnostics, low-end frequency drops, and harmonic distortion at high volume. Active across Discord and X (Twitter) troubleshooting amplifier signatures. On Sound Tester he answers subwoofer, crackle and hum discussions, and checks whether a fault is clipping, a ground loop or a damaged speaker.

Sub-bass diagnosticsharmonic distortionamplifier checks
  • 9 answers on Sound Test
  • 7+ years experience
  • Reviewed by Xavier Cruz
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Brandon VanceBrandon VanceAudio & Acoustic Performance LeadXavier CruzXavier CruzFrequency Sweep SpecialistDiana ChenDiana ChenHearing Test ArchitectAlistair CrossAlistair CrossHeadphone Benchmark LeadImogen BlakeImogen BlakeBinaural Beats EngineerCallum SterlingCallum SterlingSurround Sound AuditorGemma GallagherGemma GallagherTone Generator ValidatorHarvey FinchHarvey FinchSpectrum Analyzer Lead

Each answer is written by the specialist closest to the topic and checked by a second team member. How we verify answers

Answers are free general guidance from the Sound Tester Audio Team and community. They are not medical advice. For hearing loss, ringing or ear pain, see a doctor or audiologist. Opening a device can void its warranty, so check the maker's support first for hardware faults.

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