"Purgason keeps his signal chain pretty straightforward, as well. After running through a Sennheiser ew 572 G3 wireless unit, his guitar signal hits a Peterson Stomp Classic strobe tuner (even aliens need to tune), before going into a Stereo Mod version of an ISP Technologies Decimator ProRack G," states [Premier Guitar](http://www.premierguitar.com/articles/21840-rig-rundown-gwar-2014).more
According to an article on Guitarthai, in addition to his own signature ESP Eclipse lineup, Sugizo also used an ESP Horizon, Fender Jaguars, Fender Stratocasters, Fender Telecasters, Gibson ES175, a Gibson Les Paul Custom, a Richenbacker 330, and electric violins made by Kranz. He also used Diezel VH4 head, a Mesa Boogie Dual Rectifier head, a Mesa Boogie 4x12 cabinet, a TC Electronic TC 2290 Rackmount Dynamic Digital Delay, Decimator ProRack G power conditioner, a script Phase 90, a Boss CE-2 Chorus pedal, a Boss OD-1 pedal, a Providence Final Booster, a Digitech Whammy II, an Eventide Pitchfactor, an Eventide TimeFactor, an Eventide ModFactor, a TC Electronic G System, a Boss PS-5 Super Shifter, a Blackstar HT-DIST Distortion pedal, and a Providence Stampede Overdrive.more
Let's face it, we all love the high-gain tones. And at the same time, we all despise the all-too-familiar extraneous hiss.
Personally, for a long period of time I was constantly getting disappointed by how pedal-based noise gates weren't cutting it enough. The Boss NS-2 sucks up tone, the TC Sentry leaves you with a distasteful digital signal, a single G-String eats up sustain and the two Decimator II's in a link system eat up pedalboard space, not to mention a potential for cable short-circuiting hazard caused by a TRS aux cable that's needed to get the link system working.
That was, until I finally ran into this. The ISP Decimator ProRack G. It's a two-channel noise gate that allows you to pick between instrument level and line level. Not only is it very versatile in terms of setup, the Filter Tracking also allows you to hone in on the refined clamping of the noise reduction. How does it sound? Very transparent - even with a 1st Generation ProRack G I have, the rack unit does a fantastic job at clamping the unwanted high-gain noise while keeping my signal as clean as it could be. What can I say? It gets the job done without any nonsense.
The only thing I would wish for it to have would be a MIDI input that would allow me to bypass the noise gate when playing clean tones, but even with it on, the clean tones are crystal clear.
Final verdict? Well, if you're a metal player using a high-gain tube amp and a boost/overdrive, and you don't like the extraneous hiss that's coming from your amp, stop wasting your time with other noise gates and get this rack unit. It's the be all, end all of noise gates that YOUR tube amp needs.