Dsnuts
Headphoneus Supremus
- Joined
- Jun 20, 2011
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For bass yes but for overall sound not really. I would say it is more of a side grade at best..The signatures are a bit different on both. Your gonna get more fuller forward mids and a deeper sound on the WS99 with stronger, faster bass emphasis. The A900X has more treble emphasis and a wider stage more traditional AT type sound.