From marantz.com (note “aluminum panels”):
Highlights of the Model 30
Also see discussion Steve Hoffman forums where a dealer with a unit in his hands confirms front is aluminum
Highlights of the Model 30
- Tuned by Marantz Sound Master
- HDAM discrete preamp includes hand-selected parts
- 100W x2 into 8 ohms, 200W x2 into 4 ohms
- Premium phono EQ simplifies signal path
- Phono input compatible with MM and MC cartridges with selectable MC input impedance
- Built to last: chassis consists of thick, non-magnetic aluminum panels and rigid steel top
- Sturdy machined-brass CD and phono input terminals, high-purity nickel-plated speaker terminals
- Stunning new look
Also see discussion Steve Hoffman forums where a dealer with a unit in his hands confirms front is aluminum