"Texture is designed to adjust the actual amount of harmonic music content from the source material, in effect, providing wide range of tonal options for the preamplifier.
Like the original Portico Silk, the Silk Red / Texture works by reducing negative feedback on the output transformer and adjusting the frequency response to more closely resemble Mr. Rupert Neve’s vintage designs.
With the 511, the Texture control allows these techniques to be pushed further than previous designs, adding about 10 times the desirable THD of the original silk control at its maximum setting."
Was this just announced? I use my Handsome Audio zulu enhance knob as a texture function for my machinedrum and also RYTM.
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yes, a recent announcement i believe.
enhancement via circuitry is a fascinating process, i don’t really understand it.
would go for a ua610 mic/line pre if i had to choose.
although haven’t tried the 511. fabulous memories of the ua610 though, it could do amazing things with the Machinedrum synthesis machines’ bassdrums … the resonant round sound of hot glass 
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I’m sure this is for the 5088 fan boys who want that sound in a mic preamp. Silk is nice because it goes from subtle to running outside in Qatar at noon.