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Showing most liked content since 02/20/2017 in all areas

  1. 12 likes
    My quality of life is better at the beer box per hour rate than it was when my firm was charging $915 per billable hour. for my work.
  2. 10 likes
    So I think this is pretty cool (sorry to toot my own horn, but I can't help it sometimes ). I've been meaning to miniaturize the GRLV supplies. I've got them down to boards that are 1.16" (H) x .8" (W). The output transistor mounts to the board and you can mount it directly to heat sinks. They are designed as LM78xx and LM79xx except with a TO-247 footprint. This means you'll still need the supporting components (bridge, diode and a few caps) that are found on the current boards. Here's what they'll look like... Note that the pass transistor will be folded up on to the board and you'll need to put some mounting pins in. I've made it so it is the same size as a standard horizontal TO-247 mount. EDIT: Note that there are set resistors are on the board (R2, R3) so the boards act like fixed regulators in the circuit.
  3. 10 likes
    i think it turned out pretty well in the end! (sorry MPI, but i forgot to casually drape the Fostex T30 over it before the photoshoot)
  4. 9 likes
    That looks good. I need to start trying recipes beyond my usual. My problem is Gail is such a picky eater. Smoking short ribs. Two hours in. Sent from my iPhone using Tapatalk
  5. 9 likes
    Shaanxi Northern Chinese cuisine one block from our house in SF. Excellent food but hectic inside with no regard to personal space. Trade-offs.
  6. 9 likes
    Just finished my Dynalo Mini today. Sounds fantastic (GS-X in a palm)! Many thanks to KG and Kerry for the design/gerber files and Steve for setting up the group buy!
  7. 9 likes
    I used Safelite on the RLX about 2 months ago without an issue. I turned it in last weekend so no idea on how it would have been long term. My daughter also used them for her 2005 Honda Civic and it seems to be okay so far. They are timely and convenient at the very least. Since I don't own my cars, I don't really care what parts they use as long as they do what they are supposed to do. Picked this up a week ago: Sent from my iPhone using Tapatalk
  8. 9 likes
    And we're back to individual preferences again. Swapping back and forth between the Utopias/GS-X MkII and 007/BHSE running off the same source, I liked the Staxen better. Quelle surprise.
  9. 8 likes
    Old wine in a new bottle - just finished casing mySS Dynalo today. Dual mono setup - one Antek 25va transformer and one 20VDC GoldenReference for each channel. Just over 14mA current on each output device (MPSWx6). First built this SS Dynalo back in 2014. Every time I took a break from my ES setup to listen to this amp I am amazed how much I like its sound. Wish I had the chance to listen to the top Focal headphones with this amp...
  10. 8 likes
    This is a small project paying tribute to stax mafia. So I called it stacked mafia. I am going to build several amps in the same boxes. This is the first one. The Carbon with two boxes, GRHV, GRLV, 23 stepped VR. Planned by my friend and I and built by @ang728. Here are some pics. One GG is also done and more amps are in progess. photo credit to ang728
  11. 7 likes
    This is not meant facetiously. Perhaps consider using the resources that would go into fighting the shit landlord and neighbor to move to a nicer place instead?
  12. 7 likes
    Got the whole family out for sushi!
  13. 7 likes
    When in Rome ... Technically on Sunday, not today.
  14. 7 likes
    I made this. It is a usb dac with a headphone driver built in. I made it as I was tired of having lots of boxes and cables all over my desk. Obviously it still needs a case.
  15. 7 likes
    Agreed. I did take a picture of the first, though, on this one -- as it gave me a pang. Very comfortable daily driver!
  16. 7 likes
    I had a listen today to the Focal Utopias in quite room along with the HD800s for comparison using an unfamiliar Simaudio Moon 430HAD. The Utopias are amazingly good, very impressed, I dug them a fair amount more than the HD800 in that particular set-up. I’m going to shuffle a bit of gear and pick up one in the next week or so.
  17. 6 likes
    Private track rental at Royal Purple Raceway yesterday. It's called the Quick 30 but 40+ cars registered...LOL. It's a pretty good deal. You pay about $300, you get to run all you want with little to no queue and the track prep is phenomenal. They also feed you and generally there's a track photog shotting pics and vids. Very nice setup and one gets to meet some cool folks from all over the state and in yesterday's case the gent with the rail car (dragster) was from Minnesota...brother lives in Austin. Cool car. I made four passes. Was trying to shave a tenth off my personal best and figure out a few things. I played around with tire pressure on the drag radials (was definitely running them too low previously), raised boost a smidge for the conditions that day, locked up the converter earlier which was likely the biggest benefit, and ramped in my boost more quickly as the track was holding everything I threw at it. Can't underscore how few times I've been able to state this about track prep...it was awesome. My new personal best...got my 8.7. I might find an 8.6 on a perfect day and leaning on her a bit more, but I'd likely need to take the risk of lifting the heads at this point or making changes I doubt I'll make. Interestingly, I rotated my wheel inside the tire 8" in four passes. Beadlocks or the cheap screw through the wheel approach would be the solution. Not sure I'm willing to do that at this point but I now know why I haven't been able to get my 60ft time lower despite leaving at higher rpm....whoops. HS
  18. 6 likes
  19. 6 likes
    Where'd the tv go?! Out of sight. That's where it freakin' went. Much better.
  20. 6 likes
    The problem I had with Safelite was due to waviness and distortion in the glass. Drove me insane. More insane, anyway.
  21. 6 likes
    Needs more work - a lot. Board size 4.5 in x 2.4 in. No trimmers, servos on bottom.
  22. 6 likes
    Chanel will not arrive for probably 3 weeks, they said 8-10 days to get to them before even shipping it from Switzerland/Italy. We'll get the pics when it arrives. Crappy phone picture: Got it sized no problem though I may have put a microscratch on the side of one or more of the spare links. Plan to wear it a lot so I'm not going to worry about it. Tried to post a video of it running with the second hand sweeping but Tapatalk wasn't cooperating. Lume shot:
  23. 6 likes
    progress. the base plinth is veneered and currently drying with the first layer of oil. will start on the top plate tomorrow.
  24. 5 likes
    Was inspired by Naaman and Al, so just bought the same Chili Lime Chicharones.
  25. 5 likes
    yep, it kind of uses the same principles as the LX521, only 3-way, and i used a waveguide to match the forward dispersion of the ribbon to the midrange. the reason i chose the JA8008 was that it had nice and even dispersion all the way to 2500hz in a minimal baffle, so it could reach high enough to be crossed over steeply with the RAAL. i probably did sacrifice some controlled directivity past 70 degrees due to the side supports, but i built a prototype with and without, and they measured pretty similarly, and i couldn't really hear a difference, so i kept them. visually it was a big improvement i did try out a dampened u-baffle as well, but never could get it to measure like a cardioid, so went with an H-frame instead.
  26. 5 likes
    Woohoo! Just got tickets to see Ian McKellern playing King Lear in Chichester (UK) in October in the tiny 300-seat Minerva Theatre. Seen some landmark stuff in that little theatre. McKellern in 2011 took a break from filming The Hobbit in New Zealand to be in The Syndicate (a play about The Mob). Patrick Stewart playing Macbeth (went on to the West End, Broadway and then was made into a movie). Patrick Stewart in Bingo (a play about Shakespeare in his senile older years). That will actually be two Lears we have seen in a year. A couple of months ago we saw Glenda Jackson, aged 80, playing Lear in the West End, and it was absolutely awesome.
  27. 5 likes
    That should be a blast Jim! Have a great time. I got a box of Texas beer plus one bad-ass SOB from Utah and chicharones! I should do more half-assed legal work for Naaman because this is a sweet payoff.
  28. 5 likes
  29. 5 likes
    They cause you to sprout hair and wear a speedo?
  30. 5 likes
    Glad to hear it. Also, now's an opportunity to upgrade tires. I'll have to replace mine this year at some point (40k on the stockers) and have been struggling mightily given how few, basically zero, miles of trails my Jeep is likely to see. On a personal note - I met with the local Home Theater install company today to talk about the addition. Progress has been lagging horribly but it's coming up on the time to get things wired and given what I was quoted to have the shop guys do it I'll be having someone wire all of it for me. It was shockingly low.
  31. 5 likes
    Stupid rims don't have enough space around the lug for a traditional lug extractor. Had to go with a sacrificial socket. Rescue successful
  32. 4 likes
    I agree with the tall man 100%. Bad neighbors + bad landlord = time to think about moving anyways. Think about what your desired outcome is, and how best to achieve it. We obviously only have a few of the facts here, but I'm not sure I'd like to live in a place where the landlord hated my guts.
  33. 4 likes
    Open baffles do things box speakers don't. Of course they need extensive EQ, but one of the things you notice if you are used to box speakers is they can sound bass-shy. If you are used to open baffles, or electrostatics, of planar magnetics (Like Magnaplanar) there are no surpises. The bass is there in the right proportion to the rest of the music with no overhang, and sounds tight and fast. And open baffles interact with the room in a completely different way, exciting far fewer resonances. Well you can buy a kit, or even buy one already built. Or you can do what I did - buy two sheets of Baltic Birch and build them from scratch. Then hot hide glue veneer them, and French polish them. Parts which are not veneered I made from a Rosewood called Cocobolo, and the feet were made from Goncalo Alves.
  34. 4 likes
    Well, actually chicharrones are more like these thick pieces of bacon slices (panceta) fried until they're crusty and crunchy. Those things that Al is eating are just "cortezas" it's the skinny part of the chicharrón, fried until it gets foamy and crunchy.
  35. 4 likes
    DIY OB speakers. made them back in 2013, to replace my unreliable ESL63's.
  36. 4 likes
  37. 4 likes
  38. 4 likes
    That seems like a rather flip comment. Consider this. You've heard live unprocessed sound, right? So you think you know what a live piano sounds like? A few years ago I was shopping for a piano. Every piano I played sounded a little different, some dramatically so. And that is true of EVERY acoustical instrument. Every live venue sounds different - Chicago Symphony Hall does not sound like Boston Symphony Hall. Different locations in the same hall sound different. I'm very used to the sound of a live piano - I have an excellent 7' grand piano at home. But the sound of a piano at the player's bench is not the same as the sound of the piano for someone listening to it seated several feet away. The first Stereophile test CD had J. Gordon Holt reading an article he had written, recorded using several different microphones. His voice sounded different on every microphone. So when you're listening to an "unprocessed" piano recording which you THINK sounds like a piano - what microphones were they using to record it? What hall was it recorded in? Where did thy place the microphones? What did that specific piano sound like? If you think about it, there is a processing step in even the most purist recording, and that is what microphones are chosen to do the recording, and where those microphones are placed. Because every microphone sounds different, and every location for those microphones sounds different. Those are the choices of the recording engineer. And by and large, we as consumers have no fucking idea about either, because that information is rarely published, and even if it were, most of us wouldn't know how to interpret it anyway. At best, the most we can say is, "gee, that sounds like my memory of what A piano sounds like." Note I say "A" piano, as most of us have never heard THE piano that was actually recorded. A mastering engineer is at least several steps closer to the original sound than you or I will ever be, unless you record your own reference material. They at least might have heard the original sound, in the studio or hall, perhaps chosen the microphones, have some idea of what was laid down on the tape. And, Katz has said that although the majority of his masterings have required some "sweetening", some have not, so he has certainly heard and mastered unprocessed recordings. And even if he is using "processed" recordings, he at least should know better than most what the recording "should" sound like. Look, I'm not saying that Katz is the be all and end all. I am saying that he is a very successful and experienced sound engineer and his descriptions and opinions are well worth listening to. Specifically I take his evaluation of tonal balance seriously because that is something that mastering engineers tend to be very particular about. But for the rest of us, who are using recordings where we don't know what microphones were used, where they were placed, what the original instruments really sounded like in the acoustic space they were recorded in, well... And that's assuming we are using acoustic instruments recorded in a live space for reference, and not a processed studio recording that never had an independent existence to begin with. Sure, one can criticize what amp he has chosen to test the headphones with, etc. That's perfectly legit. Any subjective review is only a guide, anyway. My tastes and priorities may be different, my reproduction chain is almost certainly different, there is definitely room for honest disagreement. What a dull world it would be if everyone agreed with me!
  39. 4 likes
    I actually stopped playing between about age 18 and 60, so when I restarted it was a little like learning to walk again. Which is why I got such a big kick out of Jason Stratham's line in the movie "Spy," where he plays a hyper masculine James Bond type: "I make a habit of doing what other people say I can't do: Walk through fire, waterski blindfolded, take up piano at a late age."
  40. 4 likes
    Pizzicato Five – The Sound of Music
  41. 4 likes
    Yup. The main consideration (well as far as I was concerned!) in buying where we have lived for the last 20 years was the listening room. It is actually the lounge, but was 6m x 4m with a concrete floor. So I have the luxury of siting dipole speakers 1.6 metres from the end wall. And I have a listening seat that I pull out and put in the sweet spot. Bliss.
  42. 4 likes
    Naganahahpen. Tell us how you like them.
  43. 4 likes
    This is a classic example of why you never go offroading alone. Was with three other folks and they gave me a ride home.
  44. 4 likes
    Made the mistake of not giving the Jeep a real proper look-over before taking it out for its first bit of dirt today. Missed two things: a. the tires are rotting a bit more than I had previously thought and b. there are some very subtle locking lug nuts on the wheels for which I don't have the key. Made it over all sorts of rocks no problem but took a root at one wrong angle and ripped a 2" gash in the sidewall. Couldn't patch it and couldn't swap the spare. Had to leave it out there for the night since the sun was already setting. Should be an interesting tomorrow. It's at 33.111887,-105.967308 if you want to look.
  45. 4 likes
    think i need to do some sound treatments on the walls behind the 20.7's
  46. 4 likes
    Replaced the cable in my SR-009 yesterday. They are playing great now. When soldering the wires to the stator and diaphragm tabs, I came across some details that I thought should be passed on. Desoldering all the wires and removing the old cable was not a problem. See the "Ants in My Stax" thread for 009 disassembly. Remove all the plastic parts mounting the cable to the ear pod, don't try to desolder the wires/cable with these in place -no room. On reassembly, first note orientation of the cable for each ear pod, The arrow on one side of the molded strain relief is to be assembled on the inside only (ear side) and will help ensure signal polarity between L&R channels. Soldering the +/- signal wires to the stator tabs was straightforward. Where it got interesting was when I went to solder the pro bias wires to the diaphragm tabs. The diaphragm solder tabs on my SR-009 are a small additional part that had been riveted to the actual diaphagm. The right side rivet was well attached and the wire/tab easily soldered. But the left side rivet was loose and the tab rotated wildly when I touched it with my solder tip. Took some doing, but got it soldered. Then to double check when done, I measured the continuity of each wire from solder tab to cable pin. All measured 0.01 ohm, except the left bias wire. That measured ~25 ohms and varied wildly as the tab was minimally rotated. I then attempted to solder the bias wire to the diaphragm directly, but did not want to heat too much and possible melt it. Also, the material did not take to solder (probably aluminum?) and so the reason for the riveted solder tab. I finally resorted to adding a blob of solder (with the bias wire) on the tab, and rotating until the tab wedged tight under the diaphragm. That ended up also measuring 0.01 ohm and was stable with the cable assembled. Powering up the headphones, I noticed that both L and R channels started playing at nearly the same time. Previously, the L channel took several seconds longer to start playing, and usually had a sllght and wandering imbalance with the R channel for the first 1/2 hour or so. I took that as amp warm up (KGST), as things settled in nicely after that time. Now, the central image is rock stable from the start up, and the soundstage is balanced and huge. Got me thinking that loose rivets may be a cause of imbalance in some SR-009s, and takes longer to fully charge? My 009s are around 3 years old. I did not take photos while I was working on them, but attached detailed photos from the "Ants in My Stax" thread from 2012. In those earlier headphones, Stax is seen to have used a screw and nut to assemble the solder tab to the central diaphragm. Later versions like mine were "cost reduced" to rivet that connection. When that changed over in production, I do not know. I could image the intermittent coming and going of stereo balance problems written about, may be due to a loose rivet and random cable handling. That might be something others with SR-009 channel imbalance issues may want to check out. Earside view (note arrow), circa 2012: Opposite view, circa 2012:
  47. 4 likes
    here is a dxf file that is modified, https://drive.google.com/open?id=0BwUlR99qUHFqQnVZcGkzMjBva3c I enlarged it .250" to allow for 1/4" square stock to use as a frame and made other minor changes, its not perfect yet but getting close. RCA hole size increased to fit the lip around them. the IEC corners have been rounded more but haven't tested that also want a round button instead of the square one test pieces out of PCB and yes I cheated on the trimpots and I find these very hard to solder:
  48. 3 likes
    A little too authentic at times. Other people's butts and clothing were perilously close to our food (let alone faces). All in all worth it anyway.
  49. 3 likes
  50. 3 likes
    Called insurance, waiting to hear back from safelite with quote Sent from my iPhone using Tapatalk