Just a quick exploratory test using my Squier Classic Vibe 50s Stratocaster through my Kustom Defender 5H (5 watt) tube amp connected to a Kustom 12" ... that's it... talk about raw. Any reverb like effect is truly "room reverb", it's whatever is bouncing off the walls. The original tubes sounded very harsh when pushed, so I changed the original Chinese tubes (12AX7 and EL84) to JJ tubes and it helped quite a bit.