Encore Soundwave is the Soundblaster mould but with the tape-chest door reconstructed to look more like Soundwave's. Hasbro's TRU reissue Soundwave is 100% Soundblaster mould (it's nothing more than a repainted Soundblaster).

Comparison between G1 Soundwave, TRU Soundwave and Soundblaster


Comparison between original, Encore and TRU Soundwaves.


Comparison between G1 Soundwave, TRU Soundwave, Encore Soundwave and Soundblaster