Top home cinema brands Denon and Marantz have both announced that they will be offering free AirPlay upgrades to customers who own suitable network AV receivers and systems. While each company has a selection of out-of-the-box AirPlay kit, they will also add compatibility to a selection of existing models. And for free until the end of the year.

AirPlay is Apple's wireless streaming solution that ensures compatibility with iTunes and also allows users to stream music directly from their iPod touch, iPhone or iPad. It is already a feature of many of the AV receivers and systems in Denon and Marantz's current ranges, but would usually be a charged update for older models.

However, it's not available to all devices. For Denon, the models that can be upgraded are the AVR-A100, AVR-4311, AVR-311, CEOL by Denon Network Music System and the CEOL Noir by Denon Network Music System.

For Marantz, AirPlay support can be added to the Melody Media (MCR603) Network CD Receiver, NA7004 Network Audio Player, AV7005 and SR7005.

The upgrade process is carried out through connection to the Internet, and without you having to return your kit to the manufacturer. If you have any of the above products, you should visit www.denon.eu/airplay for, obviously, Denon, www.marantz.eu/airplay for Marantz. Full instructions are given at each, and you'll need several details to hand including serial number and MAC address.

Do you use AirPlay on your home cinema kit? If so, what do you think? Let us know in the comments below...