This is odd. The other day I re-hooked my GE-7 to my gear and instantly notice an increase in treble, and the pedal was'nt even on! I un-hooked it and the treble was gone. Re-hooked it, treble increase! But it actually sounds pretty good because it's acting more like an overall presence control. I'm just a bit stumped that it's doing this when it's hooked up but not actually activated because it never did this before. By the way, I'm not using a battery, just the wall adaptor. Any ideas why it's doing this?
My Boss GE-7 adds treble when not on!
- Thread starter Mike M.
- Start date
STRATDELUXER97
Stratoblaster Tone Meister
Re: My Boss GE-7 adds treble when not on!
The Boss pedals don't actually true bypass and use what's called an FET circuit....This circuit with some pedals adds the highs and also can add hiss...It's one of the drags sometimes of using pedals..The GE7 is a great pedal but it is noisey,though I've not experienced the highs being stronger.Normally a pedal or group of pedals would remove highs...Better to retain your highs than lose them,providing your tone going through the pedal isn't distorted or changed for some reason?
John
The Boss pedals don't actually true bypass and use what's called an FET circuit....This circuit with some pedals adds the highs and also can add hiss...It's one of the drags sometimes of using pedals..The GE7 is a great pedal but it is noisey,though I've not experienced the highs being stronger.Normally a pedal or group of pedals would remove highs...Better to retain your highs than lose them,providing your tone going through the pedal isn't distorted or changed for some reason?
John
italic zero
New member
Re: My Boss GE-7 adds treble when not on!
Hey John, I think you said you've never modded a GE-7, do you have any experience with the "sniper" modded one?
Hey John, I think you said you've never modded a GE-7, do you have any experience with the "sniper" modded one?
STRATDELUXER97
Stratoblaster Tone Meister
Re: My Boss GE-7 adds treble when not on!
I try to stick with just overdrives,distortions,and wah pedals...That covers alot of area really...After that,most of your time based effects have way too many chips and extra crap that I can't test...Better for me to shy away from some of that stuff.. :13:
John
italic zero said:
I try to stick with just overdrives,distortions,and wah pedals...That covers alot of area really...After that,most of your time based effects have way too many chips and extra crap that I can't test...Better for me to shy away from some of that stuff.. :13:
John
Re: My Boss GE-7 adds treble when not on!
If you don't want the pre/de thing, then you can clip out the RC at pin 7 (not the feedback one) And the RC from the output line. maybe that's the mod that your referring to, as far as *sniper*.
There are some later incorporated low noise mods to the GE-7 that I think BOSS switch over to, better (opamps,a few extra caps); However, the GE-7 incorporates a pre-emphasis (hi boost), and a de-emphassis (hi cut), to improve siganl to noise ratio, and to try to cut down on noise (the old trick of boosting his into a recording, and then cutting them by the same amount of boost upon playback yeilding a cleaner signal with better hi end resonse ... yeah that trick) ... according to the schematic the pre emphasis and de-emphasis is always in the signal, even in the bypass position ... why did they do it that way? I don't know man ... if the de-emphasis section gets messed up then it doesn't cut the extra highs, I think the hi boost +3dB @ 2kHZ. It's caused by R28 (470ohm) and C20 (.015uF) going to bias, coming off of pin 7 on the first 8pin SIP opamp that the signal goes into, the de -emphasis section is R36 (470ohm) and C27 (.015uF) going to bias. It branches off the line in between a resistor and a cap right before the final output buffer transistor. Check that RC right there, that's not cutting the hi boost back to normal ... you could just clip out the RC from pin 7, but your S/N would suffer.Mike M. said:
If you don't want the pre/de thing, then you can clip out the RC at pin 7 (not the feedback one) And the RC from the output line. maybe that's the mod that your referring to, as far as *sniper*.
some_dude
Raging BB Gunologist
Re: My Boss GE-7 adds treble when not on!
The FET buffer inside your GE-7 is restoring your lost highs due to line capacitance when running an unbuffered cable.
The Sniper modded GE-7 rocks. It's much, much quieter than a stock GE-7. Not totally silent, but silent enough.
I can answer any questions you have about it.
Sniper pic 1 - Top right of board
Sniper Pic 2
italic zero said:
The FET buffer inside your GE-7 is restoring your lost highs due to line capacitance when running an unbuffered cable.
The Sniper modded GE-7 rocks. It's much, much quieter than a stock GE-7. Not totally silent, but silent enough.
I can answer any questions you have about it.
Sniper pic 1 - Top right of board
Sniper Pic 2
L
Lewguitar
Guest
Re: My Boss GE-7 adds treble when not on!
The Boss pedals don't actually true bypass and use what's called an FET circuit....This circuit with some pedals adds the highs and also can add hiss...It's one of the drags sometimes of using pedals..The GE7 is a great pedal but it is noisey,though I've not experienced the highs being stronger.Normally a pedal or group of pedals would remove highs...Better to retain your highs than lose them,providing your tone going through the pedal isn't distorted or changed for some reason?
Lew
( :laugh2: just messing with ya John! :laugh2: )
The Boss pedals don't actually true bypass and use what's called an FET circuit....This circuit with some pedals adds the highs and also can add hiss...It's one of the drags sometimes of using pedals..The GE7 is a great pedal but it is noisey,though I've not experienced the highs being stronger.Normally a pedal or group of pedals would remove highs...Better to retain your highs than lose them,providing your tone going through the pedal isn't distorted or changed for some reason?
Lew
( :laugh2: just messing with ya John! :laugh2: )
STRATDELUXER97
Stratoblaster Tone Meister
Re: My Boss GE-7 adds treble when not on!
I'm reading the post and I'm like Deja vu....Than it's like WTF Lew! :smack: You're such a tease Lew...... :burnout:
John
I'm reading the post and I'm like Deja vu....Than it's like WTF Lew! :smack: You're such a tease Lew...... :burnout:
John
Re: My Boss GE-7 adds treble when not on!
Hey SD, off the subject, but how do you like the poly chorus compared to the electric mistress in the flange department, and what does the upper mode switch setting read ...filter matrix? what's on the bottom setting, it looks like doubler delay? Also whats the slide switch on the upper right hand corner? How's the chorus? Thanks.
screamingdaisy said:
Hey SD, off the subject, but how do you like the poly chorus compared to the electric mistress in the flange department, and what does the upper mode switch setting read ...filter matrix? what's on the bottom setting, it looks like doubler delay? Also whats the slide switch on the upper right hand corner? How's the chorus? Thanks.
Duncan
New member
Re: My Boss GE-7 adds treble when not on!
Ive got the sniper GE7 as well and it is practically noiseless. A great mod to make a good pedal with some 'issues' REALLY usable. Not true bypass per se, but the same basic outcome - prety much a clear, untainted signal...
A great mod to make a really usable pedal...
screamingdaisy said:
Ive got the sniper GE7 as well and it is practically noiseless. A great mod to make a good pedal with some 'issues' REALLY usable. Not true bypass per se, but the same basic outcome - prety much a clear, untainted signal...
A great mod to make a really usable pedal...
some_dude
Raging BB Gunologist
Re: My Boss GE-7 adds treble when not on!
Keven really gets the noise floor down on these things. The only time I've had noise come out of it is when I put noise into it (since you can't blame and EQ for single coil or gain hum). I have had gain noise when I put all the sliders up just to see what would happen, but who runs all the sliders at +15db anyway?
I like the fact that it's not true bypassed, as I run a 20' cord before and after my pedal board, and all my distortion pedals are already true bypassed. The FET buffer on it really helps to restore my highs and mids. I once pulled the GE-7 out and left only a TB distortion in the chain and my tone turned to mud (since it was running over 40' of unbuffered cable).
That little experiment tought me that while true bypass is great, it's best used in moderation. Everyone should have at least one buffered effect in their chain.
Duncan said:
Keven really gets the noise floor down on these things. The only time I've had noise come out of it is when I put noise into it (since you can't blame and EQ for single coil or gain hum). I have had gain noise when I put all the sliders up just to see what would happen, but who runs all the sliders at +15db anyway?
I like the fact that it's not true bypassed, as I run a 20' cord before and after my pedal board, and all my distortion pedals are already true bypassed. The FET buffer on it really helps to restore my highs and mids. I once pulled the GE-7 out and left only a TB distortion in the chain and my tone turned to mud (since it was running over 40' of unbuffered cable).
That little experiment tought me that while true bypass is great, it's best used in moderation. Everyone should have at least one buffered effect in their chain.
some_dude
Raging BB Gunologist
Re: My Boss GE-7 adds treble when not on!
We'll, I've never used an Electric Mistress type flange, so.....
Actually, come to think of it I've never used any flange except the Polychorus.....
The Chorus is cool. If you only use the rate and depth (delay and feedback at 0) it sounds pretty close to a Small Clone. The big difference is that on a SC the depth is either shallow or deep, but on the PC the depth is variable.
I like the flange on it, but I can't compare it to any other flange, so my discription would be pretty much useless.
Double Tracking does just what it says, doubles your signal. At short delay settings it sounds like your echoing in a claustraphobic room. At long delay settings (where I use it), it sounds like the echo you'd hear at an open air concert when you have a near and far monitor.
The feedback knob does just that. It feeds the signal back into itself. At extreme settings it self ocsillates quite easily.
I really have no idea what the Filter Matrix does. I wish I did, because then I'd be able to figure out and tweek settings. As far as I can tell, the Filter Matrix bypasses the chorus/flange/double track features and give you direct access to the delay and feedback without modulation. Sometimes, the depth and rate knobs don't seem to do anything, other times they seem to make for some weird sounds. I think it only makes wierd sounds in conjuction with the feedback.
The switch on top is a Sweep Filter. There's some kind of filter inside the unit that sweeps back and forth over it's range. Sometimes it adds cool overtones to your settings (particularily in stereo), sometimes it just gets irritating. It's an experiment thing; try a setting, turn the Sweep Filter on and see if you like what it does.
My lack of knowing the signal path inside the unit really hinders my understanding of how parts of the Polychorus works. I've looked for information online, but most of it seems to be written by Nirvana fans who can barely play guitar, nevermind (no pun intended) understand how the Polychorus works. For the most part, it's been a hit and miss learning process.
The best recorded use of a Polychorus (that I know of) is Nirvana Heart Shaped Box. The songs chorus uses the flange setting and the solo is the chorus setting with heavy feedback.
Kent S. said:
We'll, I've never used an Electric Mistress type flange, so.....
Actually, come to think of it I've never used any flange except the Polychorus.....
The Chorus is cool. If you only use the rate and depth (delay and feedback at 0) it sounds pretty close to a Small Clone. The big difference is that on a SC the depth is either shallow or deep, but on the PC the depth is variable.
I like the flange on it, but I can't compare it to any other flange, so my discription would be pretty much useless.
Double Tracking does just what it says, doubles your signal. At short delay settings it sounds like your echoing in a claustraphobic room. At long delay settings (where I use it), it sounds like the echo you'd hear at an open air concert when you have a near and far monitor.
The feedback knob does just that. It feeds the signal back into itself. At extreme settings it self ocsillates quite easily.
I really have no idea what the Filter Matrix does. I wish I did, because then I'd be able to figure out and tweek settings. As far as I can tell, the Filter Matrix bypasses the chorus/flange/double track features and give you direct access to the delay and feedback without modulation. Sometimes, the depth and rate knobs don't seem to do anything, other times they seem to make for some weird sounds. I think it only makes wierd sounds in conjuction with the feedback.
The switch on top is a Sweep Filter. There's some kind of filter inside the unit that sweeps back and forth over it's range. Sometimes it adds cool overtones to your settings (particularily in stereo), sometimes it just gets irritating. It's an experiment thing; try a setting, turn the Sweep Filter on and see if you like what it does.
My lack of knowing the signal path inside the unit really hinders my understanding of how parts of the Polychorus works. I've looked for information online, but most of it seems to be written by Nirvana fans who can barely play guitar, nevermind (no pun intended) understand how the Polychorus works. For the most part, it's been a hit and miss learning process.
The best recorded use of a Polychorus (that I know of) is Nirvana Heart Shaped Box. The songs chorus uses the flange setting and the solo is the chorus setting with heavy feedback.
Re: My Boss GE-7 adds treble when not on!
Thanks man, yeah the filter matrix is just the delay with no LFO (modualtion applied), it's the same as a regular boss flanger with the deph @ 0, the delay is the manual control, and the feedback (resonance) controls the intensity of the effect, Not sure about the filter sweep switch, that sound intersting. I just was curious because it seems to have more control (or more control of parameters that *modern flangers have*) than the EM did, so I was just curious how it stacked up. Thanks!
Thanks man, yeah the filter matrix is just the delay with no LFO (modualtion applied), it's the same as a regular boss flanger with the deph @ 0, the delay is the manual control, and the feedback (resonance) controls the intensity of the effect, Not sure about the filter sweep switch, that sound intersting. I just was curious because it seems to have more control (or more control of parameters that *modern flangers have*) than the EM did, so I was just curious how it stacked up. Thanks!
