Dsnuts
Headphoneus Supremus
- Joined
- Jun 20, 2011
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Its not that your sources there can't drive them. However they both lack raw power. In this case your actually better off getting the Serials which is more efficient to drive. However even the Serials do better with more power. Or getting a portable amp to connect with your M300.hiby m300
I would say something like the Fiio BTR7 is the minimum for the quattro in balanced.