HEVOS - Midget12 combo, standard for demanding double bass players. This small combo offers a very good reproduction of your double bass sound. No external pre amp needed for piezo pick ups.
Taurus Qube-350Acoustic
Acoustic Image Double Bass Amp - Coda S4 PLUS for Upright Bass
3/4 Size Electric Double Bass Amp Pack, Sunburst at Gear4music
Acoustic Image Double Bass Amp Contra S4 Upright Bass Combo
3/4 Size Electric Double Bass with FREE Peavey MAX158 MKII Bass Amp at Gear4music