Practice Headphone Amp

[Paradox916]

Hope to have it done in the next week or so. My wife is 38 weeks preggo so the pedal shop will be closed for a short time soon lol

Congratulations and good luck! A good silent rig is the way to go.... I haven’t used a cab in over 2 years... nap time and bedtime isn’t just about rest it’s also about daddy’s sanity when you are the stay at home parent.

 

[ADAOCE]

Congratulations and good luck! A good silent rig is the way to go.... I haven’t used a cab in over 2 years... nap time and bedtime isn’t just about rest it’s also about daddy’s sanity when you are the stay at home parent.

Haha thanks man! Yeah I’ve been putting this build off for too long! I hear you on that. My wife and I split child care duties pretty evenly because she works some nights and I can only imagine being home all day. I have all respect for SAH parents

 

[Harry Klippton]

It's not always successful but I try to play music with my 6 month old daughter as much as possible. I bought her a pair of hearing protection earmuffs for when I want to turn up a bit too

 

[ADAOCE]

It's not always successful but I try to play music with my 6 month old daughter as much as possible. I bought her a pair of hearing protection earmuffs for when I want to turn up a bit too

A for effort. My son at 6 months was scared of it. Now he’s 2.5 and I let him turn on whatever pedal and turn any knob he wants when I play. He gets some pretty wild sounds sometimes

@JamieJ sorry for hijacking this thread a bit. Your build has been the kick in the ass I needed to get this one finished though

 

[Paradox916]

@ADAOCE oh and just my two cents, don’t skimp on headphones.

 

[ADAOCE]

@ADAOCE oh and just my two cents, don’t skimp on headphones.

I got a pair of Sony MDR7506 that work great

 

[JamieJ]

No worries @ADAOCE - glad to hear it had helped you encourage you with your project.

I have this wired: normal input jack > unicab > switched jack either to an amp or if no jack is inserted it goes to the tip of the headphone input jack. The headphone input jack > headphone amp pcb > insulated jack for headphones. Hopefully that makes sense.

 

[ADAOCE]

No worries @ADAOCE - glad to hear it had helped you encourage you with your project.

I have this wired: normal input jack > unicab > switched jack either to an amp or if no jack is inserted it goes to the tip of the headphone input jack. The headphone input jack > headphone amp pcb > insulated jack for headphones. Hopefully that makes sense.

Okay yeah that makes sense. Only difference with mine is the mixer. I’m putting the amp/HP switch after that. The mixer will always be in the circuit that way though which gives me some pause. This really shouldn’t be a permanent fixture in my board though so maybe I shouldn’t worry about it

 

[Paradox916]

So you have it wired like an FX loop between the cabSim and Headphone amp?

 

[Diynot]

I love this headphone amp idea and you guys have executed beautifully!
When my first was born I tried doing the little Smokey and little gem amps and they were always lacking in the clean department. @ADAOCE congrats on the impending “you don’t really know “rock your world” until you’ve had children” phase of life! Many wishes for a safe delivery. My 4 kids all love music in one form or another (piano, guitar, French horn, ukulele, drums, amongst other instruments) and they have all had a go at the wah pedal!
So does the MXR have any clean room without sacrificing volume? Been looking at a kit from DIYre, the HC1 high powered headphone amp. It uses a 2x5532 ICs in a parallel config to drive each channel. Problem is, it’s a little too big to fit in a 1590bb or xx along side the unicab. I could do the little gem mkII, but would have to strip board it. That and there is no master volume.
Sorry to ramble, last question, is using the emu preamp into the unicab redundant?

 

[Robert]

Practice/Headphone Amp Project

I'm starting this thread for feedback, suggestions, and ideas for an upcoming practice / headphone amp project, and so we can continue the discussion here instead of taking over Jamie's build report thread. :ROFLMAO: Here's the work-in-progress flowchart so far.

forum.pedalpcb.com

 

[jimilee]

I’m currently building a unicab, Mxr headphone amp (GGG), and the 4 channel mixer (GGG) into an enclosure.

Glad to hear these two boards are working well for you.

The mixer I’m adding will allow an auxiliary input and another 1/4 instrument input. Hope to have this done soon. I’d love to see a combo board of all three circuits but the headphone amp and unicab at the least would be awesome

I did this with a 2 channel mixer. The person for which I built it, wanted a way to learn and play along with songs.

 

[JamieJ]

So you have it wired like an FX loop between the cabSim and Headphone amp?

Yep, so I could add in reverb between them if I wanted it. Also I wanted to be able to use the unicab in isolation with my amp as well (which sounds awesome).

@Diynot - the headphone amps control is a gain control so that just backs off the grit rather than being a volume control so it is plenty loud enough. I haven’t build the emu and don’t know much about it but I assume one can sim is all that would be needed.

 

[taxfree]

Hi, Would it be possible to demonstrate how the connections in your circuit were? I built a Tonemender followed by a Unicab and would like to include an auxiliary input (to play the Backing tracks) and one and more input without both going through the unicab. I also wanted to have a headphone output that could hear the three input signals. I made an approximate diagram (see image). I don't have much knowledge of electronics and the implications of these connections.