Stone Deaf PDF-1
£135
UK box that boosts, filters and distorts
It's 'Parametric Distortion Filter', just in case you were wondering, and a quick look at Stone Deaf's user list hints at what we're dealing with here - Chris Shiflet (Foo Fighters), Josh Klinghoffer (RHCP) and Josh Homme (QOTSA/Them Crooked Vultures)…
But what does it do? Well, the PDF-1 gives you up to 20dB of volume boost (height) with a parametric EQ filter (freq) that sweeps 65Hz to 3KHz.




















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