Are these in any way decent? Buy Q Acoustics 2050 Tower Speakers online at JohnLewis.com Scenario: I'm likely purchasing an Onkyo TXNR609 receiver and Mono sub shortly. I already have Mordaunt Short Alumni fronts and centre and was gonna leave them be until I could afford some excellent floorstanders but I do have some John Lewis vouchers to blow and just noticed these. Would they provide a decent stop-gap? (In which case i'd use the MS L/R as rears instead of the Wharfdale bookshelf speakers I intended to use). Or is it, as I would assume, better to just retain the Mordaunt Short unison across the front/centre and then invest in some better speakers at a later date?