External Expression Pedals

Started by Elantric, January 23, 2008, 06:34:25 PM

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Elantric

#50
Post the problem patch - so others may test and debug

But the conventional method for Wah on GT-100 is use the GT-100's onboard Expression pedal using its built in Expression Toe Switch - which is already mapped to Wah for most GT-100 patches 

neilwillford

actually i am using the gt001 which is supposed to be the same but without the built in pedals. another typo.

neilwillford

got the expression pedal all figured out. if the value of the pedal is 0 the pedal remains off. as soon as i press the pedal to increase the value to 1 the pedal turns on and it sends the value to the wah effect. works perfect.

vanceg

Quote from: cell7 on May 05, 2014, 10:15:43 AM
The ex-50 looks great, but $129 is pretty pricey...
Footprint reminds me of my old DOD fx-17 - i would like to say that a used one of these would be a good candidate but I have a sneaking suspicion that it wont work as a control pedal. Hmm, i should check this.

Its working great as an expression pedal. You do need to order it with the right value pot in it, though.  They have a 50K and a 10K

vanceg

Quote from:  whippinpost91850 on May 10, 2014, 07:55:37 PM
Bill thanks for the comments. I was gonna order one but may wait to see if you have better luck with your repalcement

I've got several and have liked them pretty well.  I replaced the 50K pot in it with a 10K which I purchased from AMT.  I LOVE the small size!

johnnybegoode

#55
What is the cheapest expression pedal I could use on Boss GP-10?

Would Behringer FCV100 or M-Audio EX-P works?

Does the FCV100 get the full range?
Do I need the polarity switch on the M-Audio EX-P?

By the way, I also intend to use this expression on Peavey Nano Vypyr Amp.

Which one would likely works with both?

M-Audio EX-P:


Behringer FCV100


GP-10:


Nano Vypyr:

johnnybegoode


Elantric

#57
The M-Audio EX-P does include a switch on the bottom  - but many complain the M-Audio EX-P's 12K Pot  does not offer the full sweep of a genuine Roland EV-5 Expression pedal.


FWIW - a Roland EV-5 Expression pedal is a 10 K Linear POT

review this thread:

Expression Pedal Options
https://www.vguitarforums.com/smf/index.php?topic=33.0

QuoteBy the way, I also intend to use this expression on Peavey Nano Vypyr Amp.

I have no clue - consult a Peavey Guru

QuoteBehringer FCV100?

The Behringer FCV100 is not compatible with any Roland / Boss Expression pedal Inputs.

Behringer FCV100 is a VCA Stereo Volume pedal with a switch to place it in Control Voltage Output Mode, and near impossible to locate its Internal battery compartment - it makes a great pedal for a miniMoog Control Voltage input -or use it as an IQ Tester, next time you audition a keyboard player - hand him a Behringer FCV100 and ask him to change the battery inside the Behringer FCV100 under a minute. 

johnnybegoode

#58
Is the M-Audio EX-P also using 10K pot?
Does it function just like the EV-5?

Roland EV-5 is $60
M-Audio EX-P is $30

Where can I get cheap Roland EV-5?

The peavey customer support also recommend the Roland EV-5 for their amp.

gumtown

I would go for the one the product support recommends, and get it right first time.
You don't want to end up with two EXP pedals
Free "GR-55 FloorBoard" editor software from https://sourceforge.net/projects/grfloorboard/

johnnybegoode

M-Audio EX-P


Roland EV-5


EV-5 is 10K and EX-P is 12K
What would that 2K difference do?

Jim Williams

I think any volume pedal will work. Connect it with TRS to 2 mono Y cable.
Skype: (upon Request)

Everything from modeling to the real deal, my house looks like a music store.

Elantric

Read the Expression pedal thread

Expression Pedal Options
https://www.vguitarforums.com/smf/index.php?topic=33.0

Many Roland /Boss users trying to use the M-Audio EXP-1 found they had to swap out the 12k pot for a 10K linear pot. This is because only a 10k linear pot delivers full sweep of the intended control assignment.

Yohanes

I have Yamaha expression pedal (50k Ohm) and GP-10, it works. I don't know Peavey, but expression pedal is just a voltage divider needed by GP-10 to know your foot position. So 10k or 12k should no different, If you need certain control/feel of your foot maybe you can choose expression pedal curve setting in the Boss GP-10.
Yamaha Pacifica 510V
Roland G-707
Godin Freeway SA
Boss GP-10
Roland GR-50

johnnybegoode

This is the reply from the amp's manufacturer:

QuoteThe NanoVypyr will work with an expression pedal which takes the place of the morph knob on the effects.  It is designed to work with a passive volume pedal, but Peavey doesn't actually offer this.

Here are some comments from the designer as to what products that may be used.

It needs to be a low-Z volume pedal, and it needs to have a TRS jack, which is something they often add to stereo low Z volume pedals for use as an expression pedal.  The nano is designed to accept a standard expression pedal connection, so it's not unusual or anything.

Here are two examples:

http://www.musiciansfriend.com/amplifiers-effects/roland-ev-5-expression-pedal


http://www.musiciansfriend.com/amplifiers-effects/rocktron-hex-expression-volume-pedal


For modding a pedal someone already has:

1.  Use a TRS jack
2.  Use either a linear (B-taper) 10K or 25K pot
3.  Wire ground to the jack sleeve like normal
4.  Wire the high side of the pot to the jack ring terminal
5.  Wire the pot wiper to the jack tip terminal
6.  Low side of the pot goes to ground

vanceg

#65
For those of you looking for a physically small sized control/expression option:  I just purchased the

Hotone Soul Press Volume/Wah/Control pedal.
http://www.hotoneaudio.com/products/press/Volume_Expression_Wah_Wah_Pedal/75.html


I can report that it seems to have a 10K pot in it and works very well connected to the Control Input of the VG-99. 
This pedal features a very compact size, metal construction, and feels generally very sturdy. 
It has 3 modes:  Volume, Wah, and Expression.  In Volume and Wah mode the unit requires power. In Expression mode you can connect a TRS cable to the input side of the pedal and the unit functions as a control pedal. 

Since it has a Wah function, it has a switch at the Toe position.  If you engage this switch while in the Expression mode, the expression signal goes to 0.  I've easily set up the VG-99 to turn on/off the Wah using that switch....

And, you can use it as a wah or standard volume pedal when not using it as a control pedal. 

Recommended.

vanceg

I'm finding the Hotone Soul Press to be a good alternative to the AMT.  But, I also really like my AMT pedals.  The AMT is a little bit smaller, but the Soul Press uses a standard pot and is exactly 10K unlike the AMT.


mbenigni

I've got one of those Soul Press pedals as well.  Pairs nicely with a Blueboard if you want to add an expression pedal without sacrificing portability.

gumtown

I have a Moog EXP pedal, and it does not work well with Boss EXP input,
it is designed for C.V. with a 100k ohm main pot and a 50k low limit trim pot.
It will be just a simple procedure of swapping the 100k pot for a 10k one though.
Free "GR-55 FloorBoard" editor software from https://sourceforge.net/projects/grfloorboard/

johnnybegoode

#69
Quote from: johnnybegoode on September 03, 2015, 12:21:23 AM
M-Audio EX-P


Roland EV-5


EV-5 is 10K and EX-P is 12K
What would that 2K difference do?


I just received the M-Audio EX-P today.
Please take note:
It works with the GP-10 using the "M-Audio" Mode and not the "Other" Mode

Same with the Amp.

The "Other" mode seems to only have 2 steps. On and Off.
While only the "M-Audio" Mode has the swelling effect.

Elantric

#70
How to Modify the Ernie Ball VP Junior pedal to be an Expression pedal ( 10K Ohm Linear Pot for Roland/Boss/ Fractal



http://forum.fractalaudio.com/mfc-discussion/35300-mfc-101-ernie-ball-vp-jr.html

Darryl Ramm wrote>
I too like the feel of the Ernie Ball Junior pedals. This is what I've used to mod several of them into Expression Pedals...

Honeywell/Clariostat 380C110K 10k ohm linear pot. High quality heavy duty construction.

http://www.onlinecomponents.com/honeywell-380c110k.html?p=44002872


Its a bit difficult to get a good quality ~10k ohm linear pot that will fit and will have the right rotation range etc. and will fit the string pulley used in the Ernie Ball Junior. And its clear from the Ernie Ball Junior pedals I've seen that the pulley does not fit the pot shafts properly on these pedals so even the manufacturer seems to be having problems sourcing potentiometers. But these Honeywell pots fit great.

Switchcraft 1/4" TRS Jack

This is typed from memory so here goes...

Disassemble the Ernie Ball Junior Pedal. Remove the three mono 1/4" jacks and circuit board from the back panel metalwork, discard jacks and circuit board. Save the existing wire between the pot and board to use between the new pot and TRS jack.

Unhook the kevlar drive string, remove the central black plate that the pot mounts on and remove the string pulley and pot.

Drill out the hole where the pot mounts to accommodate the larger shaft bushing on the Honeywell pot. You will also need to drill a new small hole for the anti-rotation/location tab on the pot body. Pay attention to where you drill this location hole so the pot body is rotated so the three solder tabs are pointing back most of the way to the rear of the pedal - so the solder tabs and wires won't foul on the pedal bottom or on the moving pedal top or the TRS jack. Install the pot on this plate and slide on the string pulley and mark the excess pot shaft length protruding past the pulley. Remove pulley, cut off the excess pot shaft with a fine hacksaw and clean up with a file. Reinstall the pulley. Some Loctite on the grub screw is a good idea. Trimming the pot shaft flush with the end of the pulley will make it easier to reinstall the drive string.

Install the 1/4" TRS jack in the rear panel left side hole as shown in the photos below (for most straightforward wiring) and solder wires from the pot to the three tabs on the TRS jack. The wiring is trivial, if in doubt follow the wiring in the photos below.

Reassemble the pedal following this guide on YouTube. If things are not going together don't panic -- just watch the video again, its easy to wind the string on the wrong way etc.

Attached are several quick photos of my modified Ernie Ball Junior....

When I get around to it I'll make a nice plastic label that covers the back panel and hides the two holes no longer used.

Darryl














Elantric

#71
I tried a new pedal - mostly due to its size and low mass ( saves weight )

Proline Expression pedal   
http://www.musiciansfriend.com/accessories/proline-standard-expression-pedal




Its very similar to the M-Audio EXP - same length, but 1 inch narrower width = means you can fit more of these on the pedal board.


and same as the Nektar NX-P
  https://www.ebay.com/itm/Nektar-NX-P-Universal-Expression-Pedal/264533569803


Here is the schematic

(Hint: if you remove the 1K Wiper resistor, its more compatible with Roland/Boss gear   






Compare to the wider M-Audio EX-P

Elantric

Roland EV-5 Price hike

this is a bit ridiculous (and $100 more than the option above)

http://www.sweetwater.com/store/detail/EV5


gumtown

#73
Quote from: gumtown on September 10, 2015, 03:33:33 PM
I have a Moog EXP pedal, and it does not work well with Boss EXP input,
it is designed for C.V. with a 100k ohm main pot and a 50k low limit trim pot.
It will be just a simple procedure of swapping the 100k pot for a 10k one though.
Here is a mod I did to my Moog Exp and it works perfectly.
Main pot 50kB and a 10kB trim

Free "GR-55 FloorBoard" editor software from https://sourceforge.net/projects/grfloorboard/

Elantric

#74
Another positive vote for the Hot One SP-10 Soul Press



( go to 6 minute mark)
Wow is this a versatile  / small  / pedal solution - with much wider travel than you would expect from such a small size  - more usable / wider range of  travel than any Vox Wah-Wah pedal
and it works for Roland/Boss EV-5 replacement
(under $90
http://www.amazon.com/Hotone-SP-10-Expression-Multi-Functional-Guitar/dp/B00SY2AQ1O?ie=UTF8&psc=1&redirect=true&ref_=oh_aui_detailpage_o00_s00
VanceG wrote>
QuoteFor those of you looking for a physically small sized control/expression option:  I just purchased the

Hotone Soul Press Volume/Wah/Control pedal.
http://www.hotoneaudio.com/products/press/Volume_Expression_Wah_Wah_Pedal/75.html


I can report that it seems to have a 10K pot in it and works very well connected to the Control Input of the VG-99. 
This pedal features a very compact size, metal construction, and feels generally very sturdy. 
It has 3 modes:  Volume, Wah, and Expression.  In Volume and Wah mode the unit requires power. In Expression mode you can connect a TRS cable to the input side of the pedal and the unit functions as a control pedal. 

Since it has a Wah function, it has a switch at the Toe position.  If you engage this switch while in the Expression mode, the expression signal goes to 0.  I've easily set up the VG-99 to turn on/off the Wah using that switch....

And, you can use it as a wah or standard volume pedal when not using it as a control pedal. 

Recommended.




Vanceg wrote>
---
https://www.vguitarforums.com/smf/index.php?topic=18811.msg134197#msg134197
I second the Hotone Soulpress. I'm using 7 with my VG-99 at this point. 
Sturdy, easy to use.

You can even kinda trick the VG-99 into using the button as a separate on/off switch for things like turning Wah on and Off by setting the Wah on/off to only listen to midi CC values of 0-1 and then set the Wah Range to CC Values 2-127.   Then set the Min Volume knob on the pedal itself such that the lowest value that the pedal sends equates to midi CC value of 2.  When you press the button to the "Off" position the VG-99 sees a "0" and that turns the Wah off, when you click it to the "On" position the VG-99 sees a 127 and turns the Wah ON and sets the wah to it's "full toe" value.  Moving the pedal down to the Heel position changes the MIDI CC value to 2...which doesn't turn the wah off.
Neat lil trick I figured out ;-)