Very clean, almost no dust inside this stereo.
controller available cheap online.
I don't have the manual, however you can view that along with the full specs at the link below
90w x 7 channels
Click here to view the online PDF Manual
Features
MULTICHANNEL/SURROUND
Number of Channels
THX
DTS (ES, Discrete 6.1/ Matrix 6,1, Neo-6)
Dolby Digital EX
Dolby Pro Logic IIx
Circle Surround II
SOUND ENHANCEMENTS
HDCD Decoder
Current Feedback Topology
Discrete Amplification
Power Transformer
D/A Conversion
Digital Signal Processing
Video Off
Source Direct
Chassis
Variable X-over
Display Off
Video Up-conversion
M.R.A.C. (Marantz Room Acoustic Calibration)
Dual AM/FM Tuner
Bass Management
Lip-sync (digital Audio Delay)
Software Upgradeable (RS232)