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  1. KnightOfAwesome

    The Wire Headphone Amplifier

    Opc is having talk of a round 2. He also would like some input on a couple of things.   Dang, hopefully I can swindle my way into getting a couple boards just to have.
  2. KnightOfAwesome

    Is the Dynalo still a good choice?

    I blame my ignorance more then the board. I let the problem get to my head and create frustration beyond what I've ever experienced before.   Ironically, using a PSU that has inaudible noise causes you to notice the amount of noise in the recording during quite sections... thankfully It's...
  3. KnightOfAwesome

    Is the Dynalo still a good choice?

    Quote: 90% of the time the offset stays below 1.0mV, occasionally the DC servo overshoots and can get as high as 2.6mV (which is the highest I've seen). Compared to my last Dynalo build with a standard LM3xx supply, It's much more stable. I would only worry about having excessive DC at...
  4. KnightOfAwesome

    Is the Dynalo still a good choice?

    Motivational pictures, Is it bad that I want to sell it for money to build more headamps? If cost was a factor, with mistakes and repurchases, I believe the total is somewhere around $293 canadian, which, for a world class amp is not much to ask for. Although, without the mistakes I made...
  5. KnightOfAwesome

    Is the Dynalo still a good choice?

    My Dynalo works, I'll post a couple of pictures for inspiration tomorrow
  6. KnightOfAwesome

    Is the Dynalo still a good choice?

    There's always waiting for AMB's δ1, or getting involved in someother group buy for a resistor based attenuator.   I'm a tiny bit skeptical about the gain, I'm using a γ1 as my source. I'll give the 11x a go with my RK27 50K pot and see if I can handle it fine. If not I'll switch to ether 8x...
  7. KnightOfAwesome

    Is the Dynalo still a good choice?

    Check out the "Stackofhay edits", It has the information you need, and more!   Could I get away with lowering R16 value to ~5K and still keep the 10pF compensation cap?
  8. KnightOfAwesome

    Is the Dynalo still a good choice?

    That would be the post I was talking about, It doesn't make much sense. I'll find out sometime (tomorrow maybe), my Dynalo amp board is completely stuffed, and all that's left is the PSU to be completed.   What pot are you referring to?
  9. KnightOfAwesome

    Is the Dynalo still a good choice?

    What kind of horrible things will have to be endured with a gain of x11 and Grado's? What happens if said user upgrades to a higher impedance headphone? Why was the Dynalo designed with a 20K pot in mind, and a gain of x11 times? Is 5x ok with music that's brick walled? or rather more...
  10. KnightOfAwesome

    Is the Dynalo still a good choice?

    I highly suggest reading the construction guild, and all the edits along with with the current guide.   Try investing in building a better PSU rather then a simple LM3xx bipolar supply, which allows it to be up and above the commercial counterparts. Or you could build it for the sake of DIY...
  11. KnightOfAwesome

    Beta22!

    It's for dissipating heat i believe  
  12. KnightOfAwesome

    Beta22!

    36VAC for unloaded on secondary's is fine, check your voltages with respect to ground and compare to this: http://www.amb.org/audio/sigma22/s22_30v_voltages.pdf
  13. KnightOfAwesome

    Upgradin from SR-125i's to what?

    Now that's the kicker ain't it? Without actually being able to my Dynalo at the moment without risking of over heating it's voice coil, It's difficult to truly know exactly what I want. But from what I can remember... I also can't truly comment of the sound of the head amp, because I had the...
  14. KnightOfAwesome

    Upgradin from SR-125i's to what?

    After using my SR-125i's for the past year, I think it's time to upgrade to something a little more different. I've been thinking about possibly going to a SR-325i. But i've been a bit mixed with what exact direction I should go.   My amp is a Gilmore Dynalo (which is being worked on) Dac...
  15. KnightOfAwesome

    Dynalo board

    I just need to add the optional OP compensation in case NE5534 is not used. I'd like to generate some interest for a GB, but I don't really know how to go about doing so. You'll be able to find the schematic and improved schematic on Walt Jungs website. There are some other changes to the...
  16. KnightOfAwesome

    Dynalo board

    I finally decided to add some top planes, I don't know if this was a step in the right direction Input?   http://www.scribd.com/doc/53391297/SuperregPCBGB
  17. KnightOfAwesome

    Dynalo board

    Quote: I'm trying to retain a star ground of sorts, I'd also like to keep the amount of wires crossing boards a minimum     Quote:   I'll try to add support for phoenix closest to where the filter section of the PSU will be.   This is the final for the singlesided...
  18. KnightOfAwesome

    Dynalo board

    Yep, here's the updated one. I wish eagle could tell you the estimated resistance of the wires on the board   http://www.scribd.com/doc/53156676   edit: I'm also putting some effort into improving the design of the regulator, thanks to a later paper for this regulator   Ok, updated...
  19. KnightOfAwesome

    Dynalo board

    I changed the sharing options to everyone. Just in case I also uploaded it to Scribd   http://www.scribd.com/doc/53149687   Sorry! (That's only V1.01. I've got a better one I'll upload later if there's any interest in this basic layout.)
  20. KnightOfAwesome

    Dynalo board

    I manged to hear what it sounded like when I had the inputstage over biased  and the output stage over biased. I found the sound stage quite overwhelming, and I had a tendency for turning up the volume a little to much, I'll have to watch myself when i get this amp up and running.   I can't...
  21. KnightOfAwesome

    Dynalo board

    Hand etched PCB boards from original Dynalo layout? Been there, done that! I blame my hand etched PCB the spawn of my own private hell from a diy project. I can get some local professional boards done up if i wish, I'd most likely end up buying from AMB's shop before it ever gets to that...
  22. KnightOfAwesome

    Dynalo board

    No, I just think there is a alternative to paying $12.00 + $12.20 shipping for a board, mostly because I'm attempt to get my amp up and running, It just seems waste full to spend $12.00 on something and then pay $12.20 for shipping on top of that. I just figure it would be better if can get a...
  23. KnightOfAwesome

    Dynalo board

    Any suggestion on where else to look? I'm contemplating making my own professional board, but I rather use something that was tested in the past and has a 100% track recorded.
  24. KnightOfAwesome

    Dynalo board

    Does anyone have any extras of the Dynalo rev. C board? Shipping from AMB's shop to where I live in Canada is $12.20 I've already sent a email to djgarderner a couple days ago, but i haven't received a reply back yet.   Thanks, Kurt
  25. KnightOfAwesome

    Headphone amp circuit help

    This thread over at DIYaudio will offer some advice: http://www.diyaudio.com/forums/solid-state/66526-there-any-better-op-than-opa2134-10.html
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