Get Chugging!
Knuckle Head is the brute-force amp of the Classic Hybrid collection. It feels absolutely perfect for chugging style riffs at higher 'not-quite-metal' gain levels.

Knuckle Head (you see where we’re going with these names?) is a bad boy bruiser with a sweet, soft side that it’s not afraid to show! While this amp wouldn’t think twice about assaulting your ears with decimating tone, it can also churn out some sweet, soothing chimes for the softer-side of things — and don’t think that it’s scared to get raunchy either!
Knuckle Head is capable of kicking out tones that range from glistening cleans, to SRV and Yardbirds style smokin’ hot crunch, right through to punishing high gain destruction – Knuckle Head does it all with style!
Here’s what Ken has to say about Knuckle Head!:
‘Knuckle head is the brute-force amp of the collection. His poweramp is the main tone maker, it gives you a raunchy heavy distortion or a nice, crunchy Yardbirds type tone. Although it is capable of all the sounds in between, I have only ever been able to get this distorted sound from a real amp, and no other amp sim has ever been abe to give me the raunchy sort of distorted high mid that this one does. With mids cranked, treble master cranked, bass at 3/4, treble off, master 1/4, and everything else cranked, it will give you a superb, machine gun type of fast picking while riding a string, like picking the E string really fast while palm muting.’
He’s damn right about the palm muting — this thing feels absolutely perfect for chug-a-riffic riffs and will have your right hand chugging up and down like there’s no tomorrow. In fact, you probably haven’t had this much fun chugging like this since you were 15 and had the house to yourself for a night …
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These requirements are what we've found to be a 'usable' environment for our plugins. By 'usable' we mean they run fine with low latency and acceptable CPU usage. Anything higher than these requirements will hopefully have you running things smoother than a sanded-down P. Diddy. Covered in silk. Or something …