Two Hafler 9303 THX-certified MOSFET amps. These amps are very good condition both cosmetically and operationally. Both were reconditioned by Hafler (Rockford-Fosgate) in Phoenix about 10 years ago. Rated Class B by Stereophile in 1994. These amps have an excellent sound similar to BAT's and Pass's MOSFET designs. The 9303 is a 3/4-scaled version of the 9505 and is rated at 150 watts/channel in 8 ohms, 225 watts in 4 ohms. This is a fully balanced design and accepts XLR or RCA cables. Two available at this price. These are still used by many recording studios and are considered "bullet-proof".