Obsidian USB 2.0 and a Seoul P4

[TeeHeX1won3ate]

Hello all!

I'm gonna get right to it.  I have a blue seoul p4 which can carry a max voltage of 4 volts.  I just pulled the trigger on a new Obsidian 2.0.  I want to get the most out of my LED, but I obviously don't want to burn it out either.  There will be no FOC and no illuminated AV switch...just the p4.  I'm trying to decide if it would be better to:

A.  drive the p4 directly off the board with no resistor/buckpuck running off of one 3.7 Li-ion cell, or
B.  use 2 3.7 Li-ions and install a 1000mA buckpuck. 

I know the buckpuck will regulate the mA, but I guess I'm just not clear if it will protect the p4 from all of that  extra (wasted?) voltage.  Not to mention I always have a tendency of making things harder on myself then they have to be.

Thanks in advance for the input.

[Ninja-Jedi]

i would just go with one 3.7V cell no sense having the extra voltage, if u put quick disconnects on the battery u can easily switch it out later if you plan on changing LED to RGB with multiple dies wired in series or FOC, illuminated AV etc.... as long as you use quick disconnects you can easily change setups, personally i would fun one 3.7v 18650 2600ma for longer runtime

[Master Bluespike74]

I would honestly email the company directly at [email protected] and ask their opinion as they work with the Obsidian all the time.  I have seen mixed comments on whether direct driving an LED is a good idea or not and as I am not an expert in electronics, I would certainly suggest getting a second opinion in this situation.  A P4 LED is not that much but it would really suck to have to replace it after a while.

[Master Nero Attoru]

Just keep in mind that most builds Ultrasabers puts out nowadays utilize the 2 Li-ion cell setup, for a total of 7.4V supplied to the board.  I don't know their exact wiring setup, but I just figured I'd throw that out there.

The board has a minimum and maximum voltage input as well as the LED.

[TeeHeX1won3ate]

Thanks guys!  I took bluespike's advice and emailed Ultrasabers.  Emory advised me of the following:

" It is fine to run it off 1x 3.7V battery and and dummy cell, the LED will be fine but the soundboard will not be as loud as it can possibly be.  It will still be loud, louder than a ForceFX and the other custom soundboards on the market.  But it just won't be OBSIDIAN loud.  If you want the Obsidian 2.0 to run at full volume the best solution is to use 2x 3.7V batteries and a BuckPuck (or a resistor)."[/b][/b]

So there you have it. Now we all know the answer.

[Master Nero Attoru]

Thanks guys!  I took bluespike's advice and emailed Ultrasabers.  Emory advised me of the following:

" It is fine to run it off 1x 3.7V battery and and dummy cell, the LED will be fine but the soundboard will not be as loud as it can possibly be.  It will still be loud, louder than a ForceFX and the other custom soundboards on the market.  But it just won't be OBSIDIAN loud.  If you want the Obsidian 2.0 to run at full volume the best solution is to use 2x 3.7V batteries and a BuckPuck (or a resistor)."[/b][/b]

So there you have it. Now we all know the answer.

Great!  Glad you got your answer.  Personally I like "Obsidian loud" but that's just me... I'd go for the 7.4V and buckpuck (or resistor).

[Ultra]

On a scale from 1 to 10, 10 being the best rating, how would you rate the customer service you received in regards to your question being answered swiftly and professionally?

[TeeHeX1won3ate]

10, hands down.  Emory responded to my e-mail in less than 24 hours.  Seeing as how I sent my original e-mail on a Sunday night and you guys are three hours behind me... to get me a response by Monday mid-morning your time -  can't ask for more than that!  Again, many thanks.