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I've got this, obviously DAB radio with bluetooth connectivity,
http://www.amazon.co.uk/Roberts-Blutune-Bluetooth-System-iPhone/dp/B008RY6I3Ebut it's loud enough, and not wallet scorchingly expensive,
or the version two up from that, which is closer to your budget.
http://www.amazon.co.uk/dp/B008R89PS0/ref=psdc_10395621_t1_B008R870GOthis is expensive, but looks kind of future proof, with dlna etc
http://www.amazon.co.uk/gp/product/B00NCR4LL2/ref=s9_dcbhz_bw_d0_g23_i1_shor this which is cheaper then the revo, but still has wi-fi and bluetooth connectivity
http://www.amazon.co.uk/Ruark-Audio-MkIII-Radio-Walnut/dp/B00ORT5AWI/ref=pd_sim_sbs_23_3?ie=UTF8&dpID=31r6WDAnc2L&dpSrc=sims&preST=_AC_UL160_SR160%2C160_&refRID=1127KS61JCPCKJXZPCMV
Self contained unit for sitting in between our kitchen / dining room.
Bluetooth connectivity.
Ability to go loud and ideally more bass than the standard Bluetooth speaker (that's what attracted me to the Deepblue)