Welcome to the YSP-30D/40D thread! (YSP-3000/4000 outside of Europe) These models are the follow up to the YSP-700/1100 models. They now feature HDMI repeater systems (2 in, 1 out) as well as DAB and video-upscaling (40D only). RRP YSP-30D - £799 YSP-40D - £1199 Dimensions in mm (WxHxD): 30D - 800x155x152 - 11.5 kg 40D - 1030x198x144 - 16 kg FAQ Q. What are they? A. Sound projectors, otherwise known as "surround emulation". If you are unable to have speakers all over the place (or just hate wiring), a sound projector will provide 5.1 emulation from a single box. Q. Does it work? A. Yes! Obviously it's never going to be as good as a proper 5.1 system, but as alternatives go, it's pretty top notch. Other major brands also produce sound projectors, such as Bose, B&O and Wharfedale, so this isn't some bodge-job one-off that doesn't work. Q. I don't understand! Explain more! A. That's not a question The sound projector contains dozens of smaller speakers which, once caliberated, fire sound beams in various directions which bounce around the room and come at you from all angles, just like a 5.1 system. Q. Do I still need an amp? A. No! Both the new range models include HDMI repeater systems, 2 coax inputs, 2 optical inputs and DAB for an all-in-one soluion. The 40D also features analogue video upscaling to 720p/1080i. Q. What's the difference between the 30D and 40D? A. Apart from size and weight (see above), the 30D contains half the number of speakers compared to the 40D, providing half the wattage (42W vs 80W). The 40D also includes 3 sets of component ports (2 in, 1 out) and video HD upscaling for all analogue input sources. Q. Where can I get more info? A. They have their own site. Check here: http://www.digitalsoundprojectors.co.uk/ Q. Do I need a sub? Can I attach one? A. They are advertised as not requiring one, however they can be attached and many users of the previous models have said that they benefit greatly from doing so. Q. Is there a compatible iPod dock I can use with this? A. Yes, Yamaha make their own (YDS-10), though it is rather pricey. Q. Where's the cheapest I can buy these currently? A. Here for 30D and here for the 40D.