The Music Hall Mambo is a high quality integrated amplifier from the folks at Music Hall Audio. Per their website
http://musichallaudio.com/about-us/, Music Hall Audio is a US based company “dedicated to manufacturing, importing, and distributing well priced, top quality, high-end audio components.”
Bottom line, this a is US designed, Chinese manufactured amplifier. The specs are awesome, and the build quality is incredible. 5 sets of analog inputs, plus a built in DAC (digital-to-analog converter) with TOSlink and coaxial inputs. 50 watts per channel, all in the Class A domain.
Do a Google search, and read some of the reviews of this amplifier.
Amp is in excellent condtion. There are some very minor scratches on the top of the unit, otherwise the unit is mint. Very nice piece of kit. I currently have way too much surplus audio gear, so I am simply looking to trim my quiver a bit. Don't know the mfg date, but the serial number is 04003571.
Will be shipped double-boxed in its original packaging. Manual and remote control are included.
Asking $400