My HT set up consists of the Poineer 812 receiver and the JMLab SIB & cub, and of late I have noticed that the centre speaker lacks mid range voices in particular sounded thin. Due to budget / wife pressure I could not replace all the fronts so decided on a centre speaker upgrade (MS Avant 905C from Richer sounds @ £99 on price match). Purists will express concern re tonal balance but the speaker seems to integrate well. The problem is my receiver only has set speaker configurations and cannot cope with a large centre and small fronts, so I have set the fronts / centre to small the Avant 905 certainly would not normally be designated small. I assume this means that the bass that would otherwise have come through the centre is merely diverted to the sub, but should I still fully benefit from improved mid range ? Are there any other disadvantages to this arrangement (the centre is on 14 day exchange, so if I have dropped a real clanger I can retreat with a little dignity at least). Final question I nearly bought the Celestion F35C @ £79 from Richer a little smaller and certainly more wife friendly, but I decided to go for the oomph of the larger centre. As the centre will not now be undertaking bass duties, should I consider the Celestion again ? Most of you have more experience than me in this area so any input would be a huge help.