for jazz you don't really want any noticeable distortion, but for the vintage jazz sound, the amp would still compress a bit. the older amps also were not very good with high frequencies (or very low frequencies for that matter), so assuming the caps plugins don't do what you want (i find very few 'amp sim' plugins sound right if they aren't being used for rock or metal) then maybe use some lowpass and highpass filters to roll off the extremes (especially the top end) and then a parametric filter to boost around (i am guessing) 150-300hz to simulate the 'poor' cabinet resonances and so forth. if it were me i would still use a soft distortion plugin very slightly to give it a bit of life, but that depends on how clean you like your sound. you should also put a bit of reverb on, especially if you are using headphones. i don't know how flexible the routing is on jack-rack etc, but i would also try to roll off a bit of the high frequencies of the reverb as well to get rid of the 'sparkly' reverb sound (maybe the reverb plugins can handle this internally, i can't remember).
so what i would do is:
guitar input >
compressor (reasonably strong) >
high pass/low pass filters >
parametric filters >
distortion >
reverb >
low pass (if possible and necessary)
hope this helps
porl
On 12/01/2008, Juan Fabián Simón <treees@xxxxxxxxx> wrote:
Hi, try to search in previous posts of this list, since about one
month ago (around 9-dic)
someone started a thread about that, and maybe you'll find some info
there.
I'm recalling a little:
http://gnupc.de/~zettberlin/law/patches/ams/ams-guitrack_RC1.ams
(the author says it sounds like a marshall combo amp).
There's a guy from the Musix project who made some jack-rack presets,
you'll find some info here:
http://audiores.uint8.com.ar/files/code/LADSPA_plugins/disthordian/index.php
http://www.musix.org.ar/wiki/index.php/Distorsion_para_guitarra_disthordian
(but sorry, it's in spanish, though maybe google can hack that ;) )
Luck!
Juan.
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