Hi, \n\nSpecifically there are a few around my price point:-\n\nSVS PB 1000 \nREL STORM III\nREL Quake\nB&W ASW608\nVelodyne CT SERIES \nB&W ASW 500 \n\nI would really appreciate any guidance available! \n\nI've been watching subs for a few years on ebay and seen a plethora of different options come and go whilst not being seriously intent on actually buying. \n\nI'm now stuck home as I'm disabled and have decided to take the plunge. I'm looking to spend around £250 to upgrade my M&K VX100 that I picked up many years back for under £100.\n\nI've got a 7.1 Atmos setup with A Denon AVRX2400h, M&K THX centre, 4x B&W VM1 +2 M1 speakers which I use for 50:50 music \/movies. \n\nI love my dad's REL but he has a huge lounge whereas mine is tiny.. around 3mx3m.\n\nI've seen all the above within my price range and would like to get one of them. I love the sound of my current sub and bought that "blind" not even having heard of M&K previously.\n\nI realise this is not the best way to proceed - without auditioning - and is a gamble but I quite like the mystery element to shopping this way and I'm not overly fussy. \n\nClearly is difficult to say which might be better in my room \/with my setup, but I wanted to gauge any experiences of these subs and also get your thoughts on whether any of these are "steals" for the price. \n\n"As far as I am see, the SVS is still selling new for around £500 so at £250 on eBay is a good shout. \n\nAlso not being overly familiar with the physics of subwoofers, but having a background in science, I'm curious to understand whether a 10" can really \n\nreach the low frequencies that a 12" can, and more generally what the benefits might be from going for a larger unit.\n\nAnyone with experience of the above or opinions on which to go for would be well received! \n\nThanks in anticipation.