Ring of counterspells.
4000 gp, DMG.
Get a dude to cast silence into the ring, so when silence is cast on you, it's auto-countered.
No one casts silence as a direct offensive spell! That grants a save! The problem with silence is having it cast on a willing creature or inanimate object with no save that is then brought near the caster (you). There is NO save against this, and ring of counterspells does nothing. Some easy solutions:
1. Meta Rod of Silence, as mentioned.
2. Iron Heart Surge via a novice Iron Heart Vest (3000 gp), but you need to already know an IH maneuver to get it.
3. Panic buttons are one-use magic items from C.Scoundrel, cost 750 gp. Only requires a swift action to activate. The panic button of Escape lets you dimension door 30 ft (out of the Silence's area). Teleport out, then wand of amplify it! The only problem would be the pesky "ends your turn" stipulation of DD... Tactic probably works just as well with some of the MIC teleportation items, they can't ALL be command word activated...
4. You're a sorc, how's your Use Magic Device with all that charisma? You could fashion a customized Rune Staff (MIC) with Amplify on it. Rune Staff just lets you burn your own spell slots to cast the spells on the staff X times per day (1-3 each spell). I don't think it has command word activation, and since you're simply casting the spell as if you had it, you should be able to benefit from Amplify's lack of a verbal component. Any staff, like a wand, is a mere DC 20 to use.