#1
I'm getting a large amount of feedback with my live amp
I run a blackstar ht-20 studio into any cab
However I've recently been getting a large amount of feedback with it

Regardless of my signal chain
I've gotten feedback with my pedalboard and just running direct into my amp
I have no clue why
It's generally only with my overdriven channel
But I've also gotten feedback with my clean channel as well

It's only been recently that's it's been happening
I'm wondering if it's a problem specifically with my head, rather than just the settings

My current settings are:-
Master Volume:- 12 o'clock
Reverb:- 9 o'clock
ISF:- 12 o'clock
Treble:- 3 o'clock
Middle:- 12 o'clock
Bass:- 3 o'clock
OverDrive Volume:- 12 o'clock
OverDrive Gain:- 10/11 o'clock
Clean Tone:- 5 o'clock
Clean Volume:- 1 o'clock

Generally if I turn up the any volume any louder I get large amounts of feedback
This is without even using my distortion pedal (just a channel switcher)

(My guitar is a standard telecaster, volume and tone at 10, if that matters)
I get this kind of feeling that I may be missing something very obvious...
Last edited by Highelf04 at Jan 24, 2014,
#2
How far away are you standing from your amp?
Bass Gear:

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Fender Precision 1989 (CIJ Rosewood)
Fender Steve Harris (CIJ)
Lakland J Sonic 5
Epiphone Explorer
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Ashdown CTM 100
#3
Probably your pickups. Does using the middle position help any?
The distance from your cab and the angle you face/hold the guitar also affects feedback.

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#4
Quote by jthm_guitarist
Probably your pickups. Does using the middle position help any?
The distance from your cab and the angle you face/hold the guitar also affects feedback.


Does it do the same thing no matter what guitar you use?
Harmony: Stratocaster
Alvarez: F-200
Schecter: Omen 6
Fender: BXR-60
Dean: Metalman Z Bass (Betty)
Egnator: Tweaker 15
Pearl: Maximum
ESP/LTD: EXP-300
Custom: Harley Quinn Bass
Custom: TK-421 Explorer
A steadily growing supply of pedals
#5
Microphonic tube... Also play with your volume and tone knobs
Lots of tones hiding in there. Look at an ISP decimator...
___________________________
Playing on some new gear....review to follow
Last edited by mmjohn at Jan 24, 2014,
#6
What type of feedback? Does this feedback stop when you mute the strings?
Gilchrist custom
Yamaha SBG500
Telecasters
Randall RM100 & RM20
Marshall JTM45 clone
Marshall JCM900 4102 (modded)
Marshall 18W clone
Fender 5F1 Champ clone
Atomic Amplifire
Marshall 1960A
Boss GT-100


Cathbard Amplification
My band
#7
is it a louder hum or buzz? most SC pickups do that when only one pickup is selected.

i would think you have a microphonic tube (preamp AX7). buy one at least and swapping it in each position.

you should IMO have a full set of tubes around in case something is wrong.
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#8
I'm generally standing pretty far away when practicing (generally my full cable length....it's pretty long)
The one time I gigged with it and got feedback, I only got feedback in certain places I stood and with my OD channel on

Generally I only use one pickup at a time, rather than the middle one like you guys suggested...
I'll try that out in practice today

When I mute the strings/am playing the feedback stops
I haven't tried it with a different guitar either

The feedback is a loud piercing ringing, that gets progressively louder (as feedback does)

What do you guys mean by a microphonic tube?
#9
Quote by Highelf04

When I mute the strings/am playing the feedback stops
I haven't tried it with a different guitar either

The feedback is a loud piercing ringing, that gets progressively louder (as feedback does)
That's what happens when you play in front of a loud amp. The sounds vibrates the strings and gives feedback. I use that to it's advantage heaps. It's how Santana and Gary Moore get that impossible sustain. Nothing is wrong with your rig, it's supposed to happen. Playing in front of a really loud amp is a set of techniques that you just have to learn.
For example:
You have to learn to mute any strings you aren't playing.
You have to develop a technique for killing the guitar when you stop playing. Some use the guitar volume knob, volume pedal or some sort of mute button, I use my tuner.
I find places on the stage where different harmonics take off or I get the least feedback, or the most. Finding the closest spot before you get microphonic feedback.
Angling the guitar to change the feedback timbre.

It's a craft all of its own
Welcome to the world of high volume my friend.

http://www.youtube.com/watch?v=18FgnFVm5k0
Watch from 2:30
Gilchrist custom
Yamaha SBG500
Telecasters
Randall RM100 & RM20
Marshall JTM45 clone
Marshall JCM900 4102 (modded)
Marshall 18W clone
Fender 5F1 Champ clone
Atomic Amplifire
Marshall 1960A
Boss GT-100


Cathbard Amplification
My band
Last edited by Cathbard at Jan 25, 2014,
#10
so cute
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Stay classy, pit.