Black Cobra

From Lastfm:

Black Cobra is a doom metal and sludge band from Los Angeles, California. The band was formed in 2001 by Jason Landrian and Rafael Martinez (who is also the current bassist for Acid King).

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After logging several years of experience with sludge metal icons Cavity and doom prognosticators Acid King, among other bands, New York-based vocalist and guitarist Jason Landrian and L.A.-based drummer Rafael Martinez began working in 2001 on a new project that would ultimately become known as Black Cobra. An eponymous EP eventually saw the light of day in 2004, followed by the full-length Bestial in 2006 and mini-album Feather and Stone in 2007, by which time the duo had developed into a vicious, super-distorted heavy metal machine reminiscent of Mastodon and High on Fire.

http://www.blackcobra.net

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From Wikipedia:

Black Cobra is a doom and sludge metal band from San Francisco, California. The band was formed in 2002 by guitarist Jason Landrian and former Acid King bassist Rafael Martinez.