This includes over 700 Mesa OS IRs and Axe-FX ready files at 44.1, 48, and 96 khz sample rates. God’s Cab 1.4 – This is included in the 7deadlysins pack but it is an older version.

OwnHammer – An impulse response library based on “V3 Mix” sampling methodology with neutral tube power amps.Ĭatharsis Impulses – The 7deadlysins pack contains thousands of IR’s, but somehow Catharsis isn’t among them. Some of the better ones to start with include the Guitar Hacks Impulses, the Engl Pro 4×12 V30 pack, the Mesa Boogie 4×12 700+ Gods Cab IR’s (or you can download it separately below), and there are a bunch for specific bands and songs.Īdditional Free Impulse Response Downloadsįree Redwirez IR Library – Redwirez offers a free pack of Marshall 1960A IRs, with Celestion G12M-25s, and it includes 17 different mics to choose from, each in dozens of variations. Free Impulse Response DownloadsĪfter downloading a few IR packs here and there, I came across the 7deadlysins Impulse Pack over at Osiris that contains thousands of impulses, with many of the best and most popular IR’s included all in one place. It can load two IRs at once and the plugin includes other controls like panning, filters, stereo control, and delay. Along with the LePou Free Amp Sim Plugins, there’s the LeCab 2 that can load up to six impulse responses at once, and it’s free.Īnother free standalone IR loader is NadIR by Ignite Amps. Both are really good at simulating the Peavey 6505/5150. Those are both paid amp simulators, but offer free demos. Most amp sims support importing Impulse Response files. They also capture the frequency of the entire signal chain from the mic, the power amp, preamp, and even the specific sound of the room, among other things. Impulse Responses are basically designed to capture the unique sounds of various cabinet and microphone combinations. Some cost money to buy, like Rosen Digital and RedWirez Impulses, but there are tons of free ones online that are really good if you know where to look. There are tens of thousands of impulse responses available online. Most amp sims worth using allow you to import IR’s, or you can use a free program like LeCab 2 or NadIR. You can achieve the same tone from your favorite song or guitarist with little effort. It’s absolutely amazing how good of a sound you can get out of an amp sim with the right impulse.

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