Accu-Bell Sound Effector Reverb Unit

[benny_profane]

Does anyone have any information about this module? I've never seen this before.

https://smallbear-electronics.mybigcommerce.com/accu-bell-sound-effector-reverb-unit/

[somnif]

Looks to be a DSP effect based on the V1000 - http://www.coolaudio.com/docs/V1000_DATASHEET.pdf

I don't see a ram chip on there so presumably its running the onboard effects (like the FV-1 it comes with some pre-loaded effects, or can read off an external ram).

[EBK]

Have you looked at the datasheet yet?
http://diy.smallbearelec.com/Library/Datasheets/Belton_ABE.pdf

[benny_profane]

Have you looked at the datasheet yet?
http://diy.smallbearelec.com/Library/Datasheets/Belton_ABE.pdf

I took a look at the data sheet and assumed it to be a FV-1 style module, but I wasn't sure about any existing project applications and wanted to see if others had run into it yet.

[somnif]

Probably like the belton bricks original intention, it's mainly meant for cheap practice amps.

I imagine if one were to want to build a V1000 based pedal it would probably just be simpler to build one from the ground up (the belton brick was a bit of a special case as fitting 3 pt2399's and accessories is fairly size intensive)

[benny_profane]

Probably like the belton bricks original intention, it's mainly meant for cheap practice amps.

I imagine if one were to want to build a V1000 based pedal it would probably just be simpler to build one from the ground up (the belton brick was a bit of a special case as fitting 3 pt2399's and accessories is fairly size intensive)

Ah okay. That all makes sense. The world of DIY reverb is somewhat narrow without DSP, so I didn't know if this would really open up new doors or not.

[storyboardist]

I just ordered one on a whim to mess around with. The datasheet says it's capable of 4 different effects, but nothing on how to switch between them. I suspect control is off of the GPIO1 pin, but it seems odd to control that with just a 50k pot as noted in the example schem. I'll admit I'm a little out of my depth when it comes to DSP, but I can generally get the gist of how things work. Is this a case of incomplete documentation or am I just being dense here?

[Lubdar]

Not dense. I was confused by the data sheet as well. Nothing jumps out at me on how to select between the effects. The smallbear video showed some breakout testing board that I haven't seen anywhere on the Accutronics website.

Their documentation is slightly off in terms of the pins for Out1 and Out2, but i think that part is negligible.

Still not sure how to switch effects; unless of course...no it can't be...they are all running at once?!?!!?

By the gods!!! A tap temp chorus's'ing plate-reverberber!!!

[somnif]

The V1000 uses pins 5-8 as program selection (0000, 0001, 0010, etc)

If you look at the unit, there is a bullet shaped space on the board with 6 pads and 3 holes. I'm guessing that is meant for a switch attachment of some sort.

edit: Ok, so maybe that is the site on the board for programming the V1000 in situ, and not a selector site. Curioser and curiouser.....

[EBK]

Yes, that bullet shape area is for programming.  Specifically, it is a Tag-Connect TC2030-MCP-NL connector:

[somnif]

Yes, that bullet shape area is for programming.  Specifically, it is a Tag-Connect TC2030-MCP-NL connector:

Hmm, well, the two programming pins on the V1000 are also two of the program select pins, so I suppose it could conceivably work both ways...

Would be nice if Belton themselves acknowledged the things existence, wouldn't it.

[alanp]

http://diy.smallbearelec.com/Library/Datasheets/Belton_BTDR-2.pdf

If I'm reading this rightly, does the new unit have a better noise rating than the old brick?

[EBK]

Still not sure how to switch effects; unless of course...no it can't be...they are all running at once?!?!!?

By the gods!!! A tap temp chorus's'ing plate-reverberber!!!

Sort of like a turd buffet? 

[Carvindc125]

Not dense. I was confused by the data sheet as well. Nothing jumps out at me on how to select between the effects. The smallbear video showed some breakout testing board that I haven't seen anywhere on the Accutronics website.

Their documentation is slightly off in terms of the pins for Out1 and Out2, but i think that part is negligible.

Still not sure how to switch effects; unless of course...no it can't be...they are all running at once?!?!!?

By the gods!!! A tap temp chorus's'ing plate-reverberber!!!

Hello,
It is actually very simple to select programs. The selection is NOT done from binary like other DSP modules.
You simply use resistor dividers to very the voltage on GP101
Take a look at the second page here the first row of the table shows you the exact voltage you need to call the respective effect.
I would use a rotary switch and resistors to get better accuracy.
here are the voltage in respect to the effect
GP101 pin needs the following V to call each effect
Chorus = 0.0V to less than 1.0V (default effect)
Echo = At least 1.2V but no more than 2.1V
Plate Reverb At least 2.3V and no more than 3.3V

Hope this helps.
Source: https://www.amplifiedparts.com/sites/default/files/associated_files/p-r-abe.pdf