The soundbar is reduced from £349 to £269 but AO.com have a £100 off voucher that is intended to be used when you purchase a TV at the same time. However the voucher works against the soundbar without a TV purchase reducing the price to an incredible £169 8)
Voucher code is MEGABOOM100
Topcashback / Quidco is worth another £4.50 off too
Credit to the user trickydick for noticing that the voucher works without a TV purchase. He posted it a few days ago against the Samsung K360 but that voucher seems to have expired.