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Joined:
February 2008
Posts: 247
Location: Delaware | OP 40 preamp on my 1717 Legend sounds kinda "boomy" on the bass end, while strumming, plugged in at moderately low volume. The notch filter seemed to calm it quite well. I was wondering if someone with more experience with these newer preamps could tell me if that's normal and the best way to adjust the notch filter. Thanks for your help !! |
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Joined:
April 2006
Posts: 2491
Location: Copenhagen Denmark | Hi there , fridave , I do not have that guitar/pre -amp. , however , a Notch -filter is used to counter a " peak " ( too much ) in the sound , it seems as if your guitar/pre -amp./PA combination is Bass -Heavy , that notch -filter will counter -act that , so that the overall sound is " Balanced " again , so , that would be a Good thing , Use ye`r own ears while adjusting , ..when it sounds Good to you , then All is Well :)
Vic |
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Joined:
February 2008
Posts: 247
Location: Delaware | Thanks HumblePie, I'm just a little confused (as usual) cause the outboard amp settings are the same as I use(d) with my '79 Balladeer (volume knob only O preamp) and that sounded great !! (untill the preamp in it took a s@#t.)Guess ya gotta just twist all the knobs n dials till ya like it !! THIRTY DAYS IN THE HOLE. |
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Joined:
February 2002
Posts: 5750
Location: Scotland | The notch filter isn't really for adjusting tone. The notch filter is basically a single-band parametric equaliser with fixed gain and a very narrow bandwidth, and it is specifically designed to kill the guitars dominant feedback frequency. To adjust the notch filter you need to get the guitars amplified volume to the onset of feedback then turn the notch control slowly until you find the frequency and kill the feedback.
You should be able to tame any tonal boominess with the 3-band EQ on the preamp and the EQ on whatever amp you are using. The trick is set everything flat to begin with, and don't overboost the EQ sliders. |
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Joined:
April 2006
Posts: 2491
Location: Copenhagen Denmark | Hi again , Fridave , U see , P T is Right , but he`s a little theoretical , ..let`s be practical..
1)
set all controls to " flat " ( counts for every guitar )..
2)
Turn -up volume , reasonably heard over speakers ,.. when " boominess " or other " unwanted -phenomina" occurs , adjust " Notch -filter "
3)
Adjust Volume/Tone...You`re Done !! :)
Vic |
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Joined:
February 2002
Posts: 5750
Location: Scotland | Wrong again. The notch filter should be adjusted AFTER all other volume & tone settings are made. It's pointless using the notch filter to zap a feedback point then changing the eq or volume level and potentially bringing the guitar back to the feedback onset point.
I can assure you that as someone who performs as a significant proportion of my living, that any advice I may offer is based on 30-odd years of practical experience, supported by solid theoretical knowledge. |
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Joined:
February 2008
Posts: 247
Location: Delaware | Paul, HumblePie, thanks I really appreciate the help from all you guys. It's a big help cause I have 30 years of inexperience as I'm sure you can all tell !! |
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notch filter
