| Author |
 Topic  |
|
Dr. Bob
Moderator
Australia
6593 Posts |
 Posted - 10/10/2008 : 11:25:05
|
quote:
You can tame the highs on the CE-2 by replacing the Burr Brown chip with a JRC4558 or RC4558 chip. The Burr Brown has more high end which some like but it will add presence. Replacing it should get you the tone you are looking for.
This probably the most expansive part of the upgrade kit, & now your being told to replace it with the original 4558?
I believe he used the Burr Brown for a more HiFi sounding & quieter pedal?
In fact it was the part that was faulty on HappyPluckers CE-2.
Next to the GE-6, the CE-2 is one of Boss's best designs, & really needs no improving-modding.
Some Boss Engineer, & clever bugger, really spent some time designing & figuring out the pre-emphasis & de-emphasis circuitry on the CE-2.
Just spend a bit of time looking at how the the circuitry, around the Input & Output to the BBD looks & works.
If you really believe you need to mod a CE-2, it might be indicative of some other shortcoming or weakness in your setup, or playing.
Or you might be specifically looking to Circuit-Bend this little blue Box.
This my 2 cents worth, & rant for the day.
Regards Dr. Bob |
 |
|
|
happyplucker
Bronze Member
United Kingdom
126 Posts |
Posted - 10/10/2008 : 14:22:16
|
| dr b loves his ce-2's! infact i can imagine you may own a sky blue car... with some black writing on the roof |
Edited by - happyplucker on 10/10/2008 14:23:32 |
|
|
|
Dr. Bob
Moderator
Australia
6593 Posts |
Posted - 10/10/2008 : 15:33:33
|
quote:
Originally posted by happyplucker
dr b loves his ce-2's! infact i can imagine you may own a sky blue car... with some black writing on the roof
Bugger! ---
You've been looking at my place on Google Earth & StreetView again haven't you?
I heard you stomping around on the our roof, a few days ago.
Regards Dr. Bob  |
|
|
|
Dingus
Silver Member
USA
472 Posts |
Posted - 10/10/2008 : 15:36:43
|
I've got 1 comment, and 1 question:
IMO Monte Allums is a total shmuck, he changes out random parts on a pedal with different parts and values and if he likes how it sounds he calls it a mod. I have yet to hear (in person) one of his modded pedals that I actually thought was better than the original.
With that being said, does anyone know if the mod to increase the maximum rate of the CE-2 (to get a faster rate) changes the beautiful tone of the CE-2? I know Keeley has been doing this mod for a while, and it's probably the only one I would consider doing to my CE-2, aside from perhaps upgrading some of the caps to Film or Silver Mica.
|
|
|
|
Dr. Bob
Moderator
Australia
6593 Posts |
Posted - 10/10/2008 : 16:58:21
|
Hi Dingus
I'm sure Christo, did the rate (only) mod to his CE-2 a little while back.
I believe he just changed one cap.
And it didn't alter the sound-tone of his CE-2.
Just wait a little while until he chimes in.
It's 8:55am in his time zone...
I know he likes talking about his mods.
Regards Dr. Bob
|
Edited by - Dr. Bob on 10/10/2008 16:59:11 |
|
|
|
cooldude
Copper Member
USA
9 Posts |
Posted - 10/11/2008 : 06:48:27
|
I just did a CE-2 Monte Allums on my Boss CE-2B Bass chorus & it dramatically improved the sound of the pedal. Before it just was way to subtle an effect for my taste. Now I can go from subtle to deep shimmery chorus & everything in between.
Don't know what trouble you guys had unless 1) pedal you had already had something wrong with it 2) The guy performing the mod did not know what he was doing. 3) You just didn't like the sound, which maybe more to do with personal preference then anything.
But as far as the mod, it did everything as advertised.
|
|
|
|
Dr. Bob
Moderator
Australia
6593 Posts |
Posted - 10/11/2008 : 07:11:23
|
Hi cooldude
Welcome to the forum from Australia.
There is a big difference between modding a CE-2B Bass Chorus & a standard CE-2.
The CE-2B is a much more subtle effect, than the CE-2
I'm guessing that what you are hearing now, is more of a expanded CE-2 effect, which is more pronounced, than the CE-2B.
I'm really glad you are pleased with the mod.
Regards Dr. Bob
3900 |
Edited by - Dr. Bob on 10/11/2008 07:32:39 |
|
|
|
cooldude
Copper Member
USA
9 Posts |
Posted - 10/11/2008 : 08:15:09
|
Thank you...I'm glad to be here.
After going over both schematics from CE-2 & CE-2B I find there is really little difference between the two with the exception of C14 which is changed from .033 to .012uf & a E level blend pot that goes along with a 47K resistor.
Theoretically should be able to put the E-level pot all the way to the right & can be used with guitar no problem.
Keep in mind I'm not electronic expert by any means but have had some training on it. Plus I could of missed some components with different values unless somebody else could add something about it. |
|
|
|
cooldude
Copper Member
USA
9 Posts |
Posted - 10/11/2008 : 08:53:11
|
| Oops let me correct something. Strike the R22 47K resistor, the same one is found in CE-2 schematic, just located further up the schematic located off of the pot board. The E-level would work at any setting just mixing with the original signal as far a regular guitar. I used all the same parts and at the same locations on circuit board as for the CE-2 Monte Allums mod kit. |
|
|
|
ChristoMephisto
Platinum Member
Canada
1288 Posts |
Posted - 10/11/2008 : 12:13:23
|
quote:
Originally posted by Dr. Bob
I'm sure Christo, did the rate (only) mod to his CE-2 a little while back.
Never did any mods to my CE-2, if it ain't broken, don't fix it
It was a Tokai TCH-1 Chorus, a clone of a CE-2.
The rate is extendend only, with no other effect tone wise.
The lower the cap at C19 from stock of .1 the faster. Try .068 for for roughly double use a .047,
Cooldude, your right, that is the only difference in the bass and regular Chorus pedals. Its a 250KC pot, meaning reverse. As the knob it turned up, less resistance is outputted. Meaning more effect sound.
Add a 100k/250k pot and call it a Dry knob. At zero it stock, and at full its dry, opposite of teh bass chorus. Get a similar knob and its look almost stock. Add a push/pull instead of a ugly switch for more options. The CE2 has been cloned because it is that good, you can find some good mod ideas at Tonepad's Corrrral Chorus
http://www.tonepad.com/project.asp?id=53
Erik's page here describes how to get around the vibrato/bypass issue
http://www.erikhansen.net/?page_id=26
Alot of these mods can be applied to the Flangers as well.
Had sold my Tokia pedal to some guy in the Prairies, and got a bunch of modding parts like 250k p/p pots, and a pair of 5117 trannies |
Edited by - ChristoMephisto on 10/11/2008 13:43:57 |
|
|
|
PeterUK
Copper Member
United Kingdom
19 Posts |
Posted - 10/11/2008 : 22:42:23
|
OK, solid progress today.
I've been to see a good friend today who is the Electronics Engineer and a good guitarist. We played the MA-modded pedal and he agreed it sounded trebly so he whipped the pedal out of the pedal board, replaced the "upgraded chip" with a good old fashioned RC4558 and the pedal sounds much nicer and similar to how it sounded pre-MA mod.
I'm going to try it in rehearsals tomorrow and my expectations are high!
Later!
 Peter
PS. Thanks to everyone's suggestions, ideas and kind words above. |
|
|
|
Dr. Bob
Moderator
Australia
6593 Posts |
Posted - 10/12/2008 : 05:24:40
|
Hi PeterUK
quote:
replaced the "upgraded chip" with a good old fashioned RC4558 and the pedal sounds much nicer and similar to how it sounded pre-MA mod.
I'm going to try it in rehearsals tomorrow and my expectations are high!
Good Luck.
Regards Dr. Bob |
|
|
|
PeterUK
Copper Member
United Kingdom
19 Posts |
Posted - 10/12/2008 : 18:56:06
|
quote:
Originally posted by Dr. Bob
Hi PeterUK
quote:
replaced the "upgraded chip" with a good old fashioned RC4558 and the pedal sounds much nicer and similar to how it sounded pre-MA mod.
I'm going to try it in rehearsals tomorrow and my expectations are high!
Good Luck.
Regards Dr. Bob
Result!
All is well in the PeterUK household. The modded/unmodded/partially modded CE2 is now pleasant to my ears and has earned a permanent place on my pedal board following a successful rehearsal!
Peter |
|
|
|
Dirk
Platinum Member
Netherlands
1309 Posts |
Posted - 10/16/2008 : 18:38:31
|
As promised, my review of the MA mod I did on the CE-2b.
It sounds fine to me, no thinner or weaker sounds here, just a little brighter, also the noise is way less.
I absolutely love the double rate mod, now I can really get that leslie sound to my guitar, you know that organ sound, especially with a bit of overdrive in front of it. Listen to Nazareth's Love Hurts, that kinda tone was what I was after, and it works great.
Also for bass it still sounds really nice, no low end loss, and the effects mix is still a nice thing to have on both instruments.
So maybe the tech that modded PeterUK's pedal was mistaken somewhere, or something else went wrong, but mine's perfect, just another great MA mod kit as for as I'm concerned. |
Edited by - Dirk on 10/16/2008 18:39:51 |
|
|
|
PeterUK
Copper Member
United Kingdom
19 Posts |
Posted - 10/27/2008 : 17:08:28
|
quote:
Originally posted by Dirk
As promised, my review of the MA mod I did on the CE-2b.
It sounds fine to me, no thinner or weaker sounds here, just a little brighter, also the noise is way less.
I absolutely love the double rate mod, now I can really get that leslie sound to my guitar, you know that organ sound, especially with a bit of overdrive in front of it. Listen to Nazareth's Love Hurts, that kinda tone was what I was after, and it works great.
Also for bass it still sounds really nice, no low end loss, and the effects mix is still a nice thing to have on both instruments.
So maybe the tech that modded PeterUK's pedal was mistaken somewhere, or something else went wrong, but mine's perfect, just another great MA mod kit as for as I'm concerned.
I've now received a socket and another chip so I'm going to experiment a little more to see if I can determine which chip works best for me.
 Peter |
|
|
|
Topic |
|
Monte Allums & Other CE2 mods
