Diamond Multimedia Monster Sound MX400 PCI AudioDrive (WDM) Driver Download

74 Ratings (see all reviews)

Supported Models

Monster sound MX400

Monster Sound MX400 MPU-401 Compatible (WDM)

Monster Sound MX400 PCI AudioDrive (WDM)

Monster Sound MX400 Sound Blaster Compatible (WDM)


Diamond Multimedia

Supported Operating Systems

Windows XP

File Name

Versions (2000-06-27) via .inf

Uploader Notes

Here are the drivers that work to make the MX 400 work to make your surround sound work with more then 2 speakers. Just unzip and do an update driver from s/p.

Uploaded By

Dean Boyer (DG Member) on 30-Dec-2001

Most Helpful Reviews

4 of 5 people found the following review helpful:
Tested on Windows XP
12 Sep 2006

Installation: 3 out of 5
Stability: 3 out of 5
Compatibility: 4 out of 5
"had trouble updating at first.a few more tries and surprisingly it worked.4 speakers now."
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4 of 5 people found the following review helpful:

18 Oct 2003

Installation:  out of 5
Stability:  out of 5
Compatibility:  out of 5
"10-18-03 tried it on Win2000 pro with my venerable "old" Monster MX400. Sorry to say it didn`t work. Setting up a new system, wanted to add this audio card. I didn`t realize until I got into it that Diamond>>Sonic Blue had died. Sucs to be me. I have 6 of these cards, lol. Anyhow my new system has an onboard audio chip that I couldn`t get to work. LMAO now, I downloaded t
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See all Diamond Multimedia Monster Sound MX400 PCI AudioDrive (WDM) ratings and reviews

Driver Contents File List

The following files are found inside the driver download file.

Name Size Date
MUART.SYS 18.3 KB 16 Jun 2000
maestro.cat 7.0 KB 6 Jul 2000
SBEMUL.SYS 36.1 KB 23 Jul 1999
191347.cab.cdm 76 bytes 7 Sep 2000
WDMA_ES2.INF 14.4 KB 27 Jun 2000
MAESTRO.SYS 145.0 KB 28 Jun 2000

How to Update Monster Sound MX400 PCI AudioDrive (WDM) Device Drivers Quickly & Easily

Step 1 - Download Your Driver

To get the Monster Sound MX400 PCI AudioDrive (WDM) driver, click the green download button above. After you complete your download, move on to Step 2.

If the driver listed is not the right version or operating system, search our driver archive for the correct version. Enter Diamond Multimedia Monster Sound MX400 PCI AudioDrive (WDM) into the search box above and then submit. In the results, choose the best match for your PC and operating system.

Tech Tip: If you are having trouble deciding which is the right driver, try the Diamond Multimedia Driver Update Utility. It is a software utility which automatically finds and downloads the right driver.

To find the newest driver, you may need to visit the Diamond Multimedia website. Most major device manufacturers update their drivers regularly.

Step 2 - Install Your Driver

Once you have downloaded your new driver, you'll need to install it. In Windows, use a built-in utility called Device Manager, which allows you to see all of the devices recognized by your system, and the drivers associated with them.

How to Open Device Manager

  • In Windows 11, Windows 10 & Windows 8.1, right-click the Start menu and select Device Manager

  • In Windows 8, swipe up from the bottom, or right-click anywhere on the desktop and choose "All Apps" -> swipe or scroll right and choose "Control Panel" (under Windows System section) -> Hardware and Sound -> Device Manager

  • In Windows 7, click Start -> Control Panel -> Hardware and Sound -> Device Manager

  • In Windows Vista, click Start -> Control Panel -> System and Maintenance -> Device Manager

  • In Windows XP, click Start -> Control Panel -> Performance and Maintenance -> System -> Hardware tab -> Device Manager button

How to Install a driver from Device Manager

  1. Locate the device and model that is having the issue and double-click on it to open the Properties dialog box.

  2. Select the Driver tab.

  3. Click the Update Driver button and follow the instructions.

In most cases, you will need to reboot your computer in order for the driver update to take effect.

Tech Tip: Driver downloads and updates come in a variety of file formats with different file extensions. For example, you may have downloaded an EXE, INF, ZIP, or SYS file. Each file type has a slighty different installation procedure to follow.

For more help, visit our Driver Support Page for step-by-step videos on how to install drivers for every file type.

This website is not affiliated with Diamond Multimedia. All company names/logos are properties of their owners.
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