Found this on my computer. It's not my guide but I thought I'd share it here. I don't think the original exists any longer. Some of you have probably seen this before but there's plenty that hasn't. Just a general guide. Every mix is unique so sometimes certain things don't apply. Hope this helps someone! -------------------- EQ Guide Note: EQ BEFORE compressing. 50hz Increase to add more fullness to lowest frequency instruments like bass drums, toms, and the bass. Reduce to decrease the boominess of the bass and will increase overtones and the recognition of bass line in the mix. This is most often used on loud bass lines like rock. 100hz Increase to add a harder bass sound to lowest frequency instruments. Increase to add warmth to piano and horns. Reduce to remove boom on guitars & increase clarity. 200hz Increase to add fullness to vocals. Increase to add fullness to snare and guitar Reduce to decrease muddiness of vocals or mid-range instruments. Reduce to decrease gong sound of cymbals. 400hz Increase to add clarity to bass lines especially when speakers are at low volume. Reduce to decrease boxy sound of lower drums like bass drums and toms. 800hz Increase for clarity and "punch" of bass. Reduce to remove "cheap" sound of guitars. 1.5Khz / 1500hz Increase for clearer, cleaner bass. Reduce to remove dullness of guitars. 3Khz / 3000hz Increase for more attack of guitars. Increase for more attack on low piano parts. Increase for more clarity on voice. Increase for more attack on the snare or other drums. Reduce to increase breathy, soft sound on background vocals. Reduce to disguise out-of-tune vocals and guitars. 5Khz / 5000hz Increase for vocal presence. Increase low frequency drum attack. Increase attack of piano, acoustic guitar and brightness on guitars. Reduce to soften thin or tinny guitar 7Khz / 7000hz Increase to add attack to percussion instruments. Reduce to decrease sibilance or that annoying ssss sound on singers. 10Khz / 10000hz Increase to brighten vocals. Increase for slight brightness in acoustic guitar and piano. Increase for hardness on cymbals. Reduce also to reduce sibilance 15Khz / 15000hz Increase this will pretty much brighten anything, but use sparingly as hiss and other nasties are here. Overview When a Q control is available, play with it to see what widths will give you the best results. Remember, these are just general starting points, and by all means do not overdo it! It is always better to cut to achieve the results you are after. Points of clarification for those who might not know. Since this is the Beginners section. Q Control Q control (or commonly labeled as "Q") is what allows you to widen or narrow the range of frequencies effected using the frequency you choose as the center point. This is normally measured in octaves. Also not all EQ's will have it labeled as such. Some may have it labeled something completely different. So just keep that in mind, and look for whatever setting allows you to widen or narrow the area effected. Also not all EQ's allow for the same amount of change. EQ before compressing The guide says to do this, but it may not always be true. It all depends on WHY, and WHEN. If you don't know/understand why that would matter then ignore this. It is still a great point, but just not always necessary. Again, if you don't know WHY, or WHEN matter ignore this.