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TC Electronic BG250 Club (Part 2)

Hi, guys! I'm from Brazil and I'm trying to convert my bg250 combo in a amp+cabinet set. Looks like this:

IMG_20170509_001847527.jpg
IMG_20170509_000401504_HDR.jpg
IMG_20170509_001847527.jpg


Now I want for a driver to replace te original tweeter. Anybody have a model sugestion? JBL D202Ti, maybe? I don't no, help :D
 
I'm not so sure that it would fix the issue, but I guess changing a capacitor is a cheap and easy thing to do, if you can solder. A new capacitor might cost you a dollar, and there would only be two solder joints to deal with. If you can't do the job yourself, then perhaps you could find an electronics hobbyist and buy him a beer, or something.

Well i can handle easy to moderate soldering jobs.
Your a bit wrong.... It had cost me 0.14$ :)))))
I'll post a pic of the cap to be sure this is the right one.
IMG_20170509_193934.jpg

This guy in UK wrote me in the end and he said they've changed a Capacitor in his combo but he does not know which, so this must be it...
 
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I know this is an extremely old (long-living) and long thread, but since people are still posting to I thought I would get your thoughts.
I have been reverse engineering the TonePrints from the app, comparing the prints for the pedals and the bass amps. I have figured out that the communication from the app to the amp are Sysex messages, so Midi over USB. I have been comparing the Sysex messages of a ton of prints and also intercepted the communication between the app and the amp and was able to trick it into thinking it is talking to a pedal and therefore could work with the editor to see what portion of the Sysex was modified when the different settings were tweaked in the editor.
My plans from this are 1. create those missing TonePrints that were not made available to the bass amps and 2. eventually create a TonePrint editor for us bass amp users. ;-)
To give you an idea what I've done. Here is an example using the Ida Nielsen NosePrint Chorus effect that is available for the Corona Chorus, but not for the bass amps.

Here's the Sysex message from the original NosePrint and my modified version that installs successfully on my BG250:

Ida Nielsen NosePrint Chorus - Original from TonePrint desktop app
f0 00 20 1f 00 68 02 00 00 00 07 45 4e 6f 73 00 65 50 72 69 6e 74 00 00 00 00 00 00 00 00 00 0f 00 00 00 7f 7f 7f 1c 78 7f 7f 7f 1c 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 64 00 00 00 00 00 00 00 00 00 06 00 00 00 01 00 00 00 00 28 00 00 00 00 00 01 00 00 55 00 00 02 4d 00 00 00 01 2b 00 00 02 00 2f 00 00 00 3c 00 00 00 00 64 00 00 00 00 00 11 00 36 63 00 00 36 63 08 00 00 36 63 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 3c 00 00 00 00 00 00 00 00 01 00 00 00 00 04 00 00 00 00 0a 00 00 00 2b 00 00 00 00 52 00 00 00 73 00 1f 00 00 0f 7f 7f 7f 7f 00 00 00 00 00 00 00 00 00 64 00 00 00 64 00 00 00 00 64 00 00 00 64 00 0f 00 00 64 7f 7f 7f 7f 00 00 00 00 00 00 00 00 00 01 00 00 00 01 00 00 00 00 01 00 00 00 01 00 00 00 00 01 00 00 00 01 00 00 00 00 05 00 00 00 04 17 00 00 01 77 00 00 22 02 54 00 00 09 4c 00 10 00 13 0a 00 00 00 01 00 00 00 00 06 00 00 00 04 1d 00 00 00 49 00 00 02 01 2e 00 00 01 0f 00 10 00 01 72 00 00 00 01 00 00 00 00 07 00 00 00 00 28 00 00 01 2c 00 00 02 02 38 00 00 02 15 00 1f 00 02 54 7f 7f 7f 7f 78 7f 7f 7f 7f 00 00 00 00 01 00 00 00 01 00 00 00 00 01 00 00 00 01 00 0f 00 00 01 7f 7f 7f 7f 00 00 00 00 00 00 00 00 00 01 00 00 00 01 00 00 00 00 01 00 00 00 01 00 00 00 00 01 00 00 00 01 00 00 00 00 08 00 00 00 00 03 00 00 00 22 00 00 00 00 28 00 00 00 2e 00 00 00 00 3c f7

Ida Nielsen NosePrint Chorus - Successful install to bass amp
f0 00 20 1F 00 7C 02 07 05 01 00 02 7F 7F 7F 40 1C 00 00 00 64 00 00 00 00 00 00 00 00 00 14 00 01 10 00 00 00 00 06 00 00 00 00 01 00 00 00 00 28 00 00 00 00 00 00 01 00 55 00 00 02 4d 00 00 00 01 2b 00 00 02 2f 00 00 00 00 3c 00 00 00 00 64 00 00 00 00 00 00 11 36 63 00 00 36 63 08 00 00 36 63 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 3c 00 00 00 00 00 0E 02 26 00 00 00 00 00 05 00 00 00 00 00 00 00 00 04 00 00 00 3C 00 7F 7F 7F 6E 00 00 3E 00 7F 7F 7F 7F 77 00 1F 00 01 7F 7F 7F 7F 7A 0F 00 00 02 7F 7F 7F 7F 44 7D 00 00 03 7F 00 00 00 00 00 0E 02 28 00 00 00 00 00 08 00 00 00 00 00 00 00 00 02 00 00 00 3C 00 7F 7F 7F 1C 00 00 00 00 01 00 00 00 00 00 00 00 00 01 00 00 00 00 00 00 00 00 01 00 00 00 00 00 00 00 00 01 00 00 00 00 00 01 00 00 00 f7

Here a short description of what you see here:

f0 00 20 1F 00 7C = Device identification. 00 20 1F just says it's TC Electronic, the next 00 is s SysEx bit and the 7C (or 68 in the original) is the actual device identifier. 7C is for bass amps (although the SysEx data in the TonePrint app have 6C, which is apparently swapped out when it communicates over USB) and 68 is the Corona Chorus pedal.

02 = SysEx command/action. 02 is the action for installing TonePrints. The responses to this from the amp have 12 as an action bit in them.

The purple section I will call the "preamble" because it seems identical for all similar effect types. I say "seems" because they do have minor differences, but they don't seem to effect the TonePrint install.

The red section is where the actual TonePrint settings are that I could also monitor as changing when I tweaked the controls in the editor.

The rest is similar to the "preamble" as it is identical to similar effects for the most part. I suspect the slight changes in the "preamble" and the tail of the message are some of those settings that TC mention they set in the background. I remember it being said in the youtube video for the editor that they set some things in the background and don't reveal them to the user as they could nuke their amp. So, I will leave my fingers from those areas for now. Although I could imagine the settings section could be expanded a little, because I never got around to tweaking the area of the editor where the pedal knobs are associated with certain settings (I only tweaked the top area of the within the editor). Those probably control some additional settings. I will dig into that at a later time.

If you look at my red sections above you will see they are almost identical. The modifications I had to make were to add a 00 after the first configuration bit (06 - which is the modulation type) and before the next available setting. This shifts all settings one bit out. Now, there were three more positions where TC either moved a bit to the left or to the right. After moving them back into the position they would be expected in the bass amp settings, this TonePrint would install and sounded like the sound presented on youtube.

Now I will work on converting existing (but not for bass amps available) TonePrint for pedals over to bass amp versions. and then look at coding an editor for this.
 
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This has probably been discussed somewhere in this thread but was wondering if anyone added any dampening material to their BG250 15" enclosure and if it was a worthwhile venture? Thanks!
Not sure what adding dampening would help. I suppose it depends on what you're trying to accomplish. The only thing I have done that helped was to put a thin layer of foam between my tweeter and the wood it is attached to. I (and others) was experiences what seemed to be a failed tweeter that turned out just that at some frequencies caused the plastic enclosure of the tweeter to vibrate and cause noise against the wood since it's attached to the same background as the main driver. It worked like a charm for me. Haven't had an issue since.
 
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Not sure what adding dampening would help. I suppose it depends on what you're trying to accomplish. The only thing I have done that helped was to put a thin layer of foam between my tweeter and the wood it is attached to. I (and others) was experiences what seemed to be a failed tweeter that turned out just that at some frequencies caused the plastic enclosure of the tweeter to vibrate and cause noise against the wood since it's attached to the same background as the main driver. It worked like a charm for me. Haven't had an issue since.
I just have thought that the cabinet sounded a bit boxy and was looking to focus the cabinet a bit more. Have it delegated to just sitting in my spare bedroom and not in use but was thinking of doing something that may help with that. Thanks for the tweeter tip!! Never had any issues with that but then again i hadn't gigged it that often before setting it aside.
 
This has probably been discussed somewhere in this thread but was wondering if anyone added any dampening material to their BG250 15" enclosure and if it was a worthwhile venture? Thanks!

Search the thread for the user ticol07 and "dowel"

He did some work on the inside of his cabinet and described the effect. Someone had posted about setting up bracing in the Rumble club, and he went off of that concept.
 
Hey, is anybody using this for a ubass? Amazon gift cards always seem to appear at Xmas time, and it just so happens that Rondo is selling some uke basses on Amazon, and it just so happens that I have a new jazz gig that might be ubass friendly. What do you know about that?

How about a guitar? I would love to ditch the guitar amp, but I gave my guitar to a kid, so can't test right now.

I've used it with a guitar and I didn't like it. Too little clarity and too much fatness whatever the settings. With the ubass... Just go for it. It sounds terrific. I still have to gig it but in rehearsals it works fantastic. I've a 12" model. Always flat or moving minimally the knobs.
 
Ok. Silly question by me. I play my SUB through a BH 250 which I picked up used about a year ago. As now a hobbyist I'm very happy with its performance however I find the pre eq button useless so what am I missing ? Thx in advance for your reply.
 
Ok. Silly question by me. I play my SUB through a BH 250 which I picked up used about a year ago. As now a hobbyist I'm very happy with its performance however I find the pre eq button useless so what am I missing ? Thx in advance for your reply.

The Pre-EQ switch is for the balanced output only so if you're not using it, you won't notice any difference. It determines if you're sending an unprocessed signal or an EQ'd signal from your amp to a mixing board/PA.

From the manual:

"PRE/POST SWITCH

This switch determines whether the balanced line-driver output provides the pre- or post-processed signal."
 
The Pre-EQ switch is for the balanced output only so if you're not using it, you won't notice any difference. It determines if you're sending an unprocessed signal or an EQ'd signal from your amp to a mixing board/PA.

From the manual:

"PRE/POST SWITCH

This switch determines whether the balanced line-driver output provides the pre- or post-processed signal."
Thank you Jamvan.
 
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I got my BG250-115 a few weeks ago, after fighting with myself for quite a few months about the idea of using an amp again. I've been running a DI pedalboard for the last few years, and while I've been mostly happy with it, I've been feeling like something was missing.

I did some shopping around, tried out the 112 at my local GC. I've always preferred the tone of 15's, but they didn't have the 115 in stock so it was off to Amazon to get the 115, as well as the footswitch.

I'm loving the tones I'm getting, even when I run just the DI (and my weird pedalboard) into my Carvin PA. The Toneprints are a nice touch but I'm still deciding which two will be the most useful and not something I can accomplish with my normal pedals.

And since I've got the BG250 up off the floor and closer to my ears, I don't have to crank it so loud it turns into a volume war with the band.

Here's a few things I've recorded with it over the last few days.





I haven't had a chance to use it at a band practice yet, but I think it'll do the job just fine.