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  1. rds

    Head-Fi Now - DIY etc

    It makes if you think of the financial incentives. DIY amp sales take away sales from commercial companies, those companies are then less interested to spend money to advertise on head-fi, the head-fi owners then make less profit. Of course this is a very simple way to look at things. You...
  2. rds

    Head-Fi Now - DIY etc

    I've been away from Head-fi for a few years now. Actually I stopped visiting the site not too long after the re-vamp, where the look of the site was changed slightly and a major focus was put on controlling the aftermarket sales of gear - in particular DIY equipment. This was not too long after...
  3. rds

    A TREAD sized regulator - the r1

    I am the jerk who's had cobaltmute's r1 for over a year and still have not tested it. I didn't realize how busy my life would be and entering a program at a new school where I don't do anything with electronics has made it difficult to get a hold of equipment. ..okay these are poor excuses.  ...
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  5. rds

    Beyerdynamic DT990 600 Ohm

    DT 990 in excellent like new condition.  All accessories included (ie carry case, adapter, box). $215 shipped in Canada.  $220 to USA.
  6. rds

    Sleek Audio CT20: First Impressions

      Quote: ^indeed it is and my money is fully on this being a joke for these reasons:   1. if you're going to introduce an iem with 20 drivers - which makes no sense from a technical a standpoint - that costs $8000 you'd be damn sure not do it april 1 2. jude claims to hear...
  7. rds

    the CTH (Compact Tube Hybrid) Rev A thread...

    Quote: I usually bend the middle lead only
  8. rds

    the CTH (Compact Tube Hybrid) Rev A thread...

      Quote:        I'm not sure what you mean by star ground since this board has a ground plane.  SG is a point on the ground plane which is connected to the power supply ground.  Also, your case and pot should be grounded to the same point unless your pot is well isolated from the...
  9. rds

    the CTH (Compact Tube Hybrid) Rev A thread...

      Quote: You're probably having charge build up on your case.  It should be grounded for safety, and this will solve the issue you mention.   Here's how I did it:   fyi the other white wire goes to the pot (to stop hum when you touch the volume knob) like so:
  10. rds

    Sylvania 5814a / 12au7 Yellow Label

    These military grade 12au7 tubes are the rare yellow label type (with halo getter) that are apparently thought to be quite a good 5814a tube (I agree). These are from the private collection of an original owner and have clearly never been used.  Quality is literally as new (as can been seen in...
  11. rds

    Tiny IEM amp that sound really good

    The major source of bulk isn't the circuit but the gigantic batteries used.  If you want small you need to use Lithium batteries.   I think the community generally doesn't like these battery types because they can potentially explode when misused.   In my opinion the smallest you can...
  12. rds

    RS-2i worth it or mod the crap out of 325i

    Quote: I disagree.  I find the rs-2 looks better while the rs-1 sounds better.  Serious about the looks - the rs-1 just looks strange on your head because of the long chambers.   Also from what I've seen used rs-1s tend to go between $450 and $500 (maybe a little more for a very new...
  13. rds

    opamp for mini3~~~!

    Quote: yeah, that's fine assuming it's in focus
  14. rds

    I just received my RS1i today...

    Quote:   Tube hybrid is definitely the way to go with the RS1i (and I believe the Xcan is tube hybrid).  Personally I use mine with the CTH and the synergy is really amazing (this has been commented on by several CTH owners).  In fact it's so good that when I had to pick one and amp and...
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  16. rds

    I just received my RS1i today...

    Quote: Thanks for the detailed review.  It hopefully brings a little balance to this thread.   Don't worry about people with a vendetta against grado or the rs-1i - they're fantastic headphones, and I've heard many.  Also keep in mind the frequency response shown on headroom clearly...
  17. rds

    FS: STAX SR-007 MKII - Great Phones At Bargain Price - SOLD!

    Will you be including the original purchase receipt with these? ...and bump for amazing headphones :D
  18. rds

    DIY Cable Gallery!!

    this is supposed to be a gallery ;)
  19. rds

    the CTH (Compact Tube Hybrid) Rev A thread...

      The unpopulated PCB.  Very nice look, and great layout!
  20. rds

    What happened to Grado's reputation?

    Quote: This is your impression, and I can see where it comes from.  What Grado really fails at (if you want to look at it as a failure) is creating a sense of value through marketing hype.  Other companies invest a lot of money into packaging that would be suitable for a Cartier watch...
  21. rds

    A TREAD sized regulator - the r1

    Looking really good!   I'm wondering if you have enough space for a heatsink on Q1 that faces in towards the board? Also personally I'd like to see a little more space between R3 and C3.  Having things that generate a lot of heat potentially touching the electrolytic capacitor could...
  22. rds

    Headphones best suited for all types of electronic music

    Quote: No problem :D The Pro 900s come with two cables (one pigtail and one straight).  As I remember, both are terminated with a 1/4" plug.  A solid mini to 1/4" adapter is included, but for use with an ipod I'd recommend buying an adapter that has a cable between the plugs like...
  23. rds

    A TREAD sized regulator - the r1

    I think a little overhang of the screw terminal could be ok if there is no other option.  Personally I don't have an issue with tombstoning R3 since C3 will already be quite tall.  Another option is to remove R3 - I'm not sure what function it's serving anyways.   I think you forgot to cut...