Forums before death by AOL, social media and spammers... "We can't have nice things"
|    rec.audio.tubes    |    Tube-based amplifiers... that go to 11    |    52,877 messages    |
[   << oldest   |   < older   |   list   |   newer >   |   newest >>   ]
|    Message 52,250 of 52,877    |
|    Stephie Bench to All    |
|    Re: LTSpice, guitar amp tone control    |
|    25 Feb 14 11:07:47    |
      From: sbench@aol.com              Generally, a true log taper is difficult to implement, so the mfgrs implement       it by two piecewise linear segments. The 10/90% allows 20 db change from mid       to max, a 30/70% allows a 10 db change mid to max. Note that a linear pot only       provides a 6db        change mid to max.              Patrick, the files I just emailed you are set up for a linear pot. I included       response curves for bass max, mid, min, 400Hz max, mid, min, and treb max, mid       and min.              I played wiyh the values a little, so, for instance response with all pots set       midscale, the response is:       50 Hz +7       100Hz +6       200Hz +2.5       400Hz 0       1k +3.3       2k +5.2       5k +6       10k +6              Bass at 50Hz Varies from +3.5 to +15       Mid at 400Hz varies from -9 to +9       Treb at 5k varies from +3.5 to +15              -Stephie              --- SoupGate-Win32 v1.05        * Origin: you cannot sedate... all the things you hate (1:229/2)    |
[   << oldest   |   < older   |   list   |   newer >   |   newest >>   ]
(c) 1994, bbs@darkrealms.ca