# Speaker Test: Subwoofer & Bass — Left Right, Sweep & Tone Maker

> Audio testing tool for speakers, subwoofers, and headphones. (iPhone/iPad app by heekyung moon.)

- Source: https://appshunter.io/ios/app/speaker-test-subwoofer-and-bass/id6784830656 (this page in markdown: same URL + `.md`)
- Developer: [heekyung moon](https://appshunter.io/developer/6779193748)
- Category: Music
- Price: Free
- Rating: 4.70/5 from 3 App Store ratings
- Age rating: 17+
- Requires: iOS 16.4 · 50 MB
- Languages: American English
- Released: 2026-07-01
- Data updated: 2026-10-23
- Monetization: ad-supported

## What is Speaker Test?

Speaker test for any speaker, soundbar, car stereo or subwoofer. Play clean test tones, sweep the whole range, check left and right, and find how low your sub really goes.

NEW: GUIDED SUBWOOFER TEST
The test steps down from 100 Hz to 15 Hz in 5 Hz steps. Each step plays on its own, and you answer only after it has actually played for 2 seconds: I hear a steady tone, Not sure (replay) or Can't hear. Near the edge it plays the step again to confirm. The result is the lowest step you heard on this speaker at this volume, not a grade. Buzzing, rattling or only feeling vibration counts as Can't hear.

QUICK SOUND CHECK
One tap on the home screen plays a 440 Hz tone for 5 seconds, so you know sound is coming out before you start.

TEST SIGNALS
• Frequency sweep: 20 Hz to 20 kHz across the whole audible range. Tap the live Hz reading to mark a rattle or dropout at that frequency, then replay the mark.
• Subwoofer sweep: 20 to 200 Hz to audition the low end and find rattles.
• Left channel and right channel: sound from one side only, so you know which speaker is which.
• Stereo: the same tone in both speakers, centred.
• Polarity A/B: 100 Hz in phase (A), then inverted (B), three rounds. On a correctly wired pair, B is clearly quieter.

TONE GENERATOR
Any tone from 20 Hz to 20 kHz on a logarithmic slider, with fine steps and quick presets. Sine, square, triangle, sawtooth, white noise and pink noise. Send it to the left, right or both speakers, or play it inverted.

TEST REPORT
Tick what sounded right: left and right channel, stereo balance, bass, mids, treble, no distortion, no rattle. A "played" tag shows which related test ran to the end. Share the report when you are done.

GUIDE
Short steps for setup, sweeps, the subwoofer test, left/right, polarity and safe volume.

GOOD FOR
Car audio installs, home theater and hi-fi setups, new soundbars and Bluetooth speakers, checking a used speaker before you buy it, and tracking down a buzz in a door panel.

SAFE VOLUME
Start with your phone and any amplifier turned down, then raise slowly. Test tones can be loud and can stress speakers and ears. Phone speakers cannot play deep bass; for the subwoofer test, connect the system you want to check.

## Key features

- Tone generator
- Frequency sweep
- Left/right channel test
- Polarity & phase check
- Bass & subwoofer test

## Is Speaker Test safe?

Not enough ratings yet to assess Speaker Test.

## Is Speaker Test legit?

Speaker Test: Subwoofer & Bass appears legitimate, with a few gaps. The AppsHunter Legitimacy Score for Speaker Test is 65 out of 100 points across 7 verification signals from App Store and developer data.


## Frequently asked questions about Speaker Test

### Does Speaker & Subwoofer Test have ads?

Yes, Speaker & Subwoofer Test contains advertisements. These ads help support the development and maintenance of the app.

### What is the rating for Speaker & Subwoofer Test?

Speaker & Subwoofer Test has a rating of 4.5 stars based on 2 ratings.

### What devices does Speaker & Subwoofer Test support?

Speaker & Subwoofer Test is currently supported on iPhone devices.

### What is the age rating for Speaker & Subwoofer Test?

Speaker & Subwoofer Test has an age rating of 17+, indicating mature content or themes.

### How often is Speaker & Subwoofer Test updated?

The latest version of Speaker & Subwoofer Test was released on August 6, 2026, suggesting recent updates.

### Can Speaker & Subwoofer Test be used for car audio?

Yes, the app is designed to test car audio systems, along with headphones, phone speakers, soundbars, and home subwoofers.

### Is Speaker & Subwoofer Test free to use?

Speaker & Subwoofer Test is available for free, though it does include advertisements.

### What kind of audio tests can Speaker & Subwoofer Test perform?

It can generate steady tones at any frequency, perform frequency sweeps, test left/right channels individually, check polarity and phase, and test bass response for subwoofers.

## Version history (last 5 releases)

### 1.0.16 — 2026-10-16

• Had to leave “Find Your Sub's Limit” after giving at least one answer? Answers are kept, and “Resume at … Hz” or “Start over” is offered for 10 minutes with the same report and in-app volume. Keep the same speaker and tap to resume.
• The card reminds you: “Test paused. Your answers so far are kept. Resume only with the same speaker and volume.”
• The Stop button area keeps its space, preventing the test cards from shifting as a tone plays.

### 1.0.15 — 2026-09-25

New guided subwoofer test: it steps down from 100 Hz to 15 Hz, lets you answer once each step has played for 2 seconds, and keeps the lowest step you heard.
Quick 440 Hz sound check on the home screen.
The test report now shows which tests played to the end.
Missing translations filled in for every language.

### 1.0.14 — 2026-09-05

Polarity A/B check.
Verify: Tests tab, tap Polarity A/B. The meter holds 100 Hz while the line under it alternates A · In phase and B · Inverted, three rounds, 13.5 s. On a correctly wired stereo pair B is clearly quieter than A. If B is as loud as A or louder, one speaker's + and - are swapped. A single phone or mono Bluetooth speaker goes silent on B — that is normal; see Guide step 5. Play Right Channel first if you only have one speaker; silence there means this test does not apply.

### 1.0.11 — 2026-08-15

Fixed a rare start-up hang where the app could sit on the loading screen instead of opening. Long sweeps also start faster now, without the pause before sound.

Thanks for the reviews and feedback!

### 1.0.10 — 2026-08-06

Removed a microphone permission the app never used — the speaker tests only play sound.

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All apps by heekyung moon: https://appshunter.io/developer/6779193748

## Related topics

[subwoofer test](https://appshunter.io/ios/topics/subwoofer-test) · [subwoofer bass tester](https://appshunter.io/ios/topics/subwoofer-bass-tester) · [bass test](https://appshunter.io/ios/topics/bass-test) · [audio test](https://appshunter.io/ios/topics/audio-test) · [subwoofer frequency test](https://appshunter.io/ios/topics/subwoofer-frequency-test) · [speaker test](https://appshunter.io/ios/topics/speaker-test) · [subwoofer bass tester tool](https://appshunter.io/ios/topics/subwoofer-bass-tester-tool) · [iphone speaker test](https://appshunter.io/ios/topics/iphone-speaker-test) · [bass tester](https://appshunter.io/ios/topics/bass-tester) · [subwoofer test tone](https://appshunter.io/ios/topics/subwoofer-test-tone) · [subwoofer](https://appshunter.io/ios/topics/subwoofer) · [suqoof](https://appshunter.io/ios/topics/suqoof) · [speaker tester](https://appshunter.io/ios/topics/speaker-tester)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-10-23.*