The same 'eavy, 'eavy, 'eavy Green Russian you already know and love, but now greener.
The bass player's Muff - the Russian Sovtek V7 circuit. A fuzzy clipped blanket up top, meanwhile leaving the low end alone to do its thing. Huge.
Finished in hard wearing olive drab powder coat, fluted knobs and a bright red diffused LED.
Sounds like this on guitar, then bass: