Hammond isolation transformers provide complete circuit iso- lation to protect your sensitive electronics. 171C features an electrostatic shield between the primary and secondary which greatly attenuates surges and noise caused by power problems on the same circuit or by supply disruptions from utilities.The transformer alone (without packaging) weighs 11 lbs. Ask 100$
New it is 215$ + tax
I also have a bigger one for your amplifier. 900 va 35 lbs ask Hammond 171F Isolation Transformer. This is one of the older versions of this particular isolation transformer that was rated at 900VA instead of the current rating of 750VA.   Works great for isolation of electronic equipment.  PSE local pick up for this one.