3 Steps to start experiencing 4D sound quality

  • 1.

    Download
    the software.

  • 2.

    Install It.

  • 3.

    Enable
    & Enjoy.

Easily downloadable, whether you're using external speakers, headphones or even your computer's built-in speakers, Expander 2.1 delivers unmatched experience that truly needs to be heard to be believed.

Get Started >

What happens after you install the software?

The AstoundSound Expander 2.1 automatically starts each time you log in to your computer. You can use the enable and disable feature to do listening comparisons and adjust settings at anytime.


Controlling Expander 2.1

From the preference pane you can:

  • Increase or decrease the amount of AstoundSound Expansion.
  • Switch listening modes on demand. Meaning you can adjust from settings that are made for music, movies and games.
  • Create customizable keyboard short-cuts that allow you to switch between listening modes.

Hearing the difference

You can hear the AstoundSound effect through your computer's built-in stereo speakers, headphones or external stereo speakers connected to your computer.

Another fun way to hear AstoundSound is to connect the line-out (headphone) jack of your computer to an available input on your home stereo receiver.

Macintosh screenshot

AstoundSound™ Expander 2.1
for Mac HEAR IT. BELIEVE IT.

Buy now:

Buy It >

Try it: Free

Download Now >

Macintosh System Requirements: Snow Leopard Compatible
Leopard (10.5.x) & Greater, 1 GHz Intel or PPC (G5) processor, 1 GB RAM, Stereo audio output, Internet access.


Windows screenshot

AstoundSound™ Expander 2.1
For Windows

Buy now:

Buy It >

Try it: Free

Download Now >

Windows System Requirements:
Windows XP or Windows Vista (32-bit & 64-bit compatible), 1 GHz 32-bit (x86) processor, 1 GB RAM, Stereo audio output, Internet access