I am responding according to his request £300 amp and CD player

If we start going up in price then I would suggest others. The Marantz is warm and the MF are brighter (and can be improved with tube changes and buffers between source but thats not what you asked). The Teac are good transport but then you would require a DAC and then the amp which would go outside your price range most likely. You will get what you pay for and £300 is your budget so try the marantz/MF route at that level of expectation you shouldn't be disappointed.
If people ask for £30 headphones we should respond with as best a headphone as can be got for that price and advise about the ones higher up in price not everyone wants or can afford things at a higher price regardless of the sound quality. The same goes for anything in life, car, food and drink, etc, etc.