600% Sound Booster Chrome extension

The base boost slider is free. Turbo is an optional paid upgrade, bought through checkout inside the extension, that adds an equalizer, a toolbar boost shortcut and a higher volume cap.

Pin the icon, open the tab that is too quiet, click the icon and drag the slider up. The boost applies to that tab's audio only.

The listing states a boost of up to 600% of the tab's normal volume, and Turbo raises the cap. Most quiet videos need far less than the maximum, so raise the slider in small steps.

It can. Amplifying far past the original level risks distortion, and loud output can be uncomfortable or harmful at length. Set your system volume low, then raise the slider gradually.

The signal is being amplified past what the source can carry cleanly, which causes clipping. Lower the slider until the crackle stops.

This page reviews one specific extension and its free-versus-Turbo split. Our volume booster comparison covers the whole category and how to choose between options.

The slider controls the tab you set it on. A new tab starts without your boost, so expect to set it again. The listing does not say whether the level is remembered between sessions.

It amplifies audio produced in a browser tab, so it should apply to any of those. Results depend on the source, and some sites may need a page refresh after installing.

Check the checkout screen in the extension for the pricing structure and any refund terms before buying. The listing does not spell them out.

No. The listing puts the equalizer, the toolbar boost shortcut and the higher cap behind Turbo.

The base version is a single volume slider. For bass and treble shaping you would need Turbo's EQ or a dedicated bass booster extension.

It needs access to tab audio to work. If you only boost occasionally, disable it in Chrome's extensions menu the rest of the time.