CANON D-300 PRO-LOGIC DECODER *UNUSED*,, CANON D-300 PRO-LOGIC DECODER *UNUSED*, This is a high quality surround sound decoder that can be integrated with an existing stereo and video system to provide all the facilities necessary to reproduce Dolby Surround material. This model includes power amplifiers for the centre and surround speakers. All you need is a source (DVD/Blu Ray/CD etc.) and the speakers. I bought this for £200 and it's never been used. Still boxed with manual and remote. brand new, ,, £50.00, London, 07044344045.