Ruby Headphone Amp REALLY quiet

[daverdave]

Alright all, I just made a modded ruby amp to use as a headphone amp, I've sent the output of the ruby into a jfet buffered splitter which has split the signal into 2 and from there wired it to stereo outputs. I used 10 ohm resistors to ground from the stereo outs as it said to do on ROG.
The amp is REALLY quiet though, just wondered if it was meant to be this quiet or if I've likely messed up somewhere? I used a j201 in the ruby instead of MPF102.
I'd appreciate any advice.

[B Tremblay]

Putting any kind of stage after the Ruby will diminish or negate its ability to drive a speaker.

[daverdave]

so the splitter is the reason it's so quiet? Is there any way I can stop it from affecting the output? I need 2 outs though.
The only other thing I can think of is to split the input with the splitter and then send the seperate signals into 2 seperate ruby circuits, would that be my best option? Thanks for the reply.

[any]

so the splitter is the reason it's so quiet? Is there any way I can stop it from affecting the output? I need 2 outs though.
The only other thing I can think of is to split the input with the splitter and then send the seperate signals into 2 seperate ruby circuits, would that be my best option? Thanks for the reply.

Just join the output's together, I've done it with my ruby and it sounds wonderfull!
Look over at Generalguitargadgets or runoffgroove for the correct headphone output hookup.
(ie. speaker ground to headphone ground through a 10 Ohm resistor and speaker plus to headphone plus
through a 47uF cap with + side to headphone ring AND tip.)

Cheers

[fixr1984]

Build 2 units, one for left and one for right.
Use a dual pot to control the volume. Thats what i did and it works great.
Actually I built 4 on one board so I can have 2 stereo headphone amps
with separate volume controls in the same box.

[daverdave]

when you say 'join the outputs together' do you mean split the out of the ruby directly to 2 outs?

[any]

when you say 'join the outputs together' do you mean split the out of the ruby directly to 2 outs?

Yeah, sorry... the ring and tip of the headphone jack both get the same speaker out signal,
hence the "joined outputs". It sounds wonderfull on mine.
Be carefull with volume though, it can be VERY loud!!

[daverdave]

Thanks, I've done that and it works fine.