Amp upgrade for my Peach Tree Deco? on a budget


Hi, currently have a modest 2 channel system in our living room. Here is the set up
1.) Peachtree Decco
2.) Focal 706V
3.) Cryo Silver plated USB
4.) Windows PC
5.) 90% of the time using www.pandora.com as my source
6.) PS Audio Duet
7.) DH labs power cord for the decco.
8.) DIY Speaker Cables (Low inductance design)

I have read that the decco's weakness is the amp portion and wanted to know what 2 channel amp you would suggest. Any suggestions in the less then $500 used range? Thanks
hricikda
Onix sp3. An amazing, beautiful, little integrated tube amplifier. It destroys the idecco's amp in every way. It's soundstage is precise, differentiated, and palpable. It can be tonally gorgeous. A huge step up from the decco's amp. You can usually find it used @ $450.
If you like tubes look at a used Vista Audio either the I34 or I84. I84 has 15 wts and a sweet sound.