If you got the RE already mite as well keep it in the family and go with a US Amps amplifier. A Merlin MD.2D would be perfect for the SX. If budget's the bigger issue, could get away with the XT4000D.
If you got the RE already mite as well keep it in the family and go with a US Amps amplifier. A Merlin MD.2D would be perfect for the SX. If budget's the bigger issue, could get away with the XT4000D.
If you really wanted to keep it in the family, you could look for a RE 12.1