FOR SALE: Marantz MA500 Mono-block Power Amplifier. I have two of these that I used to power my vinyl playback system using a pair of Scott Endler preamps. The sound quality was excellent but I recently purchased a Jolida tubed integrated amp and no longer use the mono-blocks. One of the units is in excellent condition for $125.00. On the second amp, the "Standby" LED remains illuminated producing a slight hum that is not noticeable at low listening levels. This one is $85.00. The amps can be purchased separately at the prices stated or both for $205.00. The following is a description of the amp: "The Marantz MA-500 THX Ultra certified Monoblock Power Amplifier measures just 33/4" in width, yet delivers 125 watts into 8 ohms. The MA-500 is ideal for creating multi-channel home theater and multi-room systems or for adding additional channels of amplification to an existing system. High Current Power Supply offers true low impedance drive capability--125 watts into 8 ohms and 180 watts into 4 ohms. Two MA-500's can be Bridged together to produce over 360 watts into 8 ohms. Compact Design--5 MA-500's occupy the width of a single conventional stereo power amplifier."