[worrblade]

I am wanting to build an O2. I found the parts list so i think i can find everything i need.
other than building it with the 3.5 jack i wanted to build it with a 1/4 jack. 
Have any of you done this before? If so do you have a part number for what i would need? and did you need a different face plate or what did you do?
 
Thanks to anyone that will help! 

 

[shadow419]

I used a Neutrik 1/4 jack on my build (Mouser part # 568-NJ3FD-V).  I put it in a B3-080 case instead of the standard B2-080 case from the BOM.  You could drill the panels that come with the case yourself or source them possibly from one of the builders.  Audio Putine iirc may still have panels like the ones I used.  I got mine from a group buy at diyaudio a good while ago.  Check my photo album for a visual if you like.

 

[worrblade]

Do you think i could get the 1/4 jack to fit in the B2-080 case? 

 

[shadow419]

Quote:

Do you think i could get the 1/4 jack to fit in the B2-080 case? 

Sure, but you would have to flip the box to have all the controls on the back including the volume.  You'd also have to give up battery power since the only space big enough for the jack is the area on the pcb where the batteries go.

 

[mikeaj]

Hm, if you're using the space in the back (where the batteries would go normally) to house the 1/4" jack, you might be able to wire up the volume control there too.  I don't know if I've ever seen a build like that though.

 

[shadow419]

Hm, if you're using the space in the back (where the batteries would go normally) to house the 1/4" jack, you might be able to wire up the volume control there too.  I don't know if I've ever seen a build like that though.

I think you're right about it fitting, although you'd have less room for the joints at the pot. Like you I've never seen one like this before.

 

[worrblade]

all i want is the 1/4 jack. seems like its really going to be a pain. 

 

[worrblade]

and.. bass boost..

 

[shadow419]

all i want is the 1/4 jack. seems like its really going to be a pain. 

and.. bass boost..

It's not that hard, but you have to be willing to do a little work. If you don't want to do it yourself, just find a builder willing to do what you want.

 

[worrblade]

I would let some one do it if they wouldn't charge me. i think i can make it fit and keep the batteries if i put the 1/4 coming out the back..
i know this is off topic from what i posted. but i know i can get a 3db bass boost gain with out a problem. I know i can change up the resistors and cap and get a 9db gain. does anyone know if this would do any damage or have any negative effects to the amp? 

 

[shadow419]

Good luck with your project.  Perhaps someone is willing to work for free. 

 

[worrblade]

this is what i am wanting to do! 
http://www.head-fi.org/t/658178/o2-amplifier-bamboo-faceplate
 
I dont have an enclosure so i can't see what i have to work with. i know this amp does have batteries. 

 

[HamilcarBarca]

Quote:

this is what i am wanting to do! 
http://www.head-fi.org/t/658178/o2-amplifier-bamboo-faceplate
 
I dont have an enclosure so i can't see what i have to work with. i know this amp does have batteries. 

 
Have you tried the diyAudio site? The O2's designer used to post there and there were lots of replies.

 

[worrblade]

Quote:

 
Have you tried the diyAudio site? The O2's designer used to post there and there were lots of replies.

ya.. i did. i have yet to get a reply from anyone. i was kind hoping the person that made this amp would see this and have some advice