jant71
Headphoneus Supremus
- Joined
- Feb 19, 2005
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If you look close it would appear that the 80 are open/vented in the back vs. the others that look closed/sealed. Those slits with the screens behind them remind me of the FX500/FX700 except that they are more strategically placed around the outside and not directly in the path of wind and external noise. The best bet to have the largest, most open stage with this design over the 60 and 70's closed design.