Woo Audio WA6chat_bubble_outlineFrom real comments

The WA6 leans neutral rather than classically 'tubey.' Owners describe the WA6 as neutral with a slight emphasis on mids and extended bass, and vocals that sound particularly good. Compared to solid-state references like the Grace Design m903, it's judged less bright and more controlled. Multiple commenters call it the least 'tubey' amp in Woo's lineup, noting it behaves more like a solid-state unit than amps such as the WA2, though its sound signature still shifts heavily depending on which driver and rectifier tubes are installed.

Tube rolling dramatically reshapes its character. Commenters swap rectifier and driver tubes constantly, comparing GE 6EW7, 6DE7, and 6DR7 combinations and noting real differences in detail, transparency, and warmth. One owner found GE 6EW7 driver tubes gave better detail and transparency with Denon D7000s than 6DR7, while GE 6DE7 tubes made LCD-2 headphones sound fast and controlled. Others ask about specific tube and adapter choices, showing tube selection is central to getting the most from this amp.

Ownership comes with real waiting and consistency caveats. Several buyers report lead times far longer than promised, with Woo quoting three to four weeks but actual delivery taking seven to eight weeks with no proactive updates, attributed to the small company being maxed out on capacity. One V2 owner felt build quality was inconsistent, judging their unit below average and not worth its roughly 1500 Euro price versus cheaper amps. Another commenter cautions against running the tube amp more than eight hours continuously, warning it shortens tube, capacitor, and transformer lifespan.