The iPhone 5 launch on Wednesday, Sept. 12, is sure to be the most important event for tech investors this year. The Motley Fool will be hosting a live chat where our top tech analysts will answer your questions and break down what the announcement means for Apple and tech investors everywhere. Be sure to swing by Fool.com at 12:45 p.m. ET next Wednesday for all your coverage of Apple's next big announcement.

Sept 12.

That's the date the tech world will be watching as Apple (Nasdaq: AAPL) unveils its iPhone 5 to the world. That puts us at T-minus three days to the event, so investors need to make sure they're fully prepared for the opportunities that lie within.

Apple Event

Source: The Loop.

This year's model will put up massive unit sales figures. Some estimates range as high as 250 million units throughout the product's life cycle, which would more than double lifetime unit sales to date. For numerous component suppliers, that spells profits as they ride on Apple's coattails to riches. Leading up to the event, I'm going to outline a handful of companies that I think will be winners of the iPhone 5.

Audio codec: Cirrus Logic
By focusing its efforts heavily on Apple, Cirrus Logic (Nasdaq: CRUS) has ridden on iDevice coattails for years, beating out larger rivals such as Texas Instruments (NYSE: TXN) that would rather emphasize other spots, such as the touchscreen microcontroller in the iPhone. Thanks to its concentrated exposure to Apple, booming iPhone sales translate directly to Cirrus Logic's top line.

It recently forecasted next quarter's sales to be between $170 million and $190 million, which would be growth of 67% to 87% over the prior year. With Apple comprising 59% of sales last quarter, you can sure bet this rosy forecast is thanks to the next iPhone.

This is just a taste of a comprehensive iPhone 5 report I've put together as a bonus for subscribers of The Motley Fool's premium research service all on Apple. The complete report is available at no additional cost when you sign up, so be sure to grab your copy today and position yourself to profit on the most important smartphone launch of the year.