Head case forum. I will copy the previous posts here and del.

Head case forum. There's a sense of refinement that the Lambda Pro lacks. Though for heat dissipation, making the sides of the case heat sinks and using perspex for top, bottom, front, and back would seem better. Some are just fine while others have issues, you can see that with the discussion about different serial ranges sounding different. The precision mic puts these rounds well below SAAMI minimum for headspace . Full analysis about head-case. 2k views grawk April 20, 2022 Jun 15, 2024 · I had a case head separation on my 6. Yes, there is substantially less metal in a Balloon Head case, but they were used by manufacturers for many years, without the need for recessed chambers. The resistors in the BOM are thick film ones and can be replaced with thin film ones for likely better outcome. To do that, I'd need a beefed-up version that can output at lea Sep 9, 2015 · Finally done! I regrettably sold my previous KGSSHV Carbon a while ago, this one’s not going anywhere soon. From what I understand, the newer/other versions that for example Joamat and Kerry have made are not necessarily improved versions of what Kevin did, but rather use some more affordable and more easily obtainable parts. Every few years I get to considering electrostatic headphone connectors, and every time I end up finding the same collection of vintage part numbers, shared experiences, and a few u Aug 8, 2009 · A question for the few who might have an original fried-egg-temperature-case original Stax T2 - is there a problem with the battery trimmers in that? Aug 8, 2009 · I've rebuilt a couple of batteries on original DIY T2 boards with LT1021 - works. 1v on the output with a 10mF capacitor. 112 replies 36. 1 2 3 4 259 By Knuckledragger, July 22, 2008 6. Now I've owned 30+ units over the years and when they work as they should they all sound the same. Fewer components then the original battery. This is a natural follow up thread to the Carbon Group Buy thread. I wasn't able to get there because of travel restrictions (fuck you, COVID That's my Mom Last night I called my Mom because I hadn't heard from her in a few weeks. R7 and R8 are connected and R9 and R10 are connected. 5 Bergara b14 hmr. How does the GES stack up today against Stat amps at that pric Apr 23, 2012 · Use of 'balloon head' casesThe case on the left in this photo is a balloon head case. I got these from head-case forum group buys, though can't find the specific threads. Doesn't change at any position of the volume pot either. Good quality. 5K resistors closer to the DN2540 on each side of the board. Since it was regulating at Aug 15, 2001 · Balloon head cases are mostly ancient history now, but there's still a few around. zip (amp board) kgsshvpssic Oct 5, 2024 · The Head-Case Hi-Fi Forum is a specialized online community for audiophiles and headphone enthusiasts, dedicated to discussing high-fidelity audio equipment, music, and listening experiences. The pins are made from 2. 2k views MexicanDragon August 30 I Can't Hear You, Speaker Man, I'm Listening to My Headphones Oct 5, 2024 · The Head-Case Hi-Fi Forum is a specialized online community for audiophiles and headphone enthusiasts, dedicated to discussing high-fidelity audio equipment, music, and listening experiences. 10 mm thicker than tube pins. FelipeF May 13, 2022 · I was going to name it 'Double the Carbon, double the voltage, double the fun', but I'm afraid that would be too wordy. I am curious about building an electrostat HPA as I only have an SRD7 Mk2. 0 mm deep and you have 0. org. Sep 23, 2006 · Grok Headphones in Fullness14. If it's not clear from the photo then this is a massive slab, 16" x 12", so quite a bit bigger then the production version. I guess that's something. The amp is non-inverting, based on pin 2 going positive to +-marked pin on the Stax connector. I may see if I can get a mode to move some of the posts here (Carbon thread, not sure where else they are littered). For those curious I’ve posted a full set of Feb 3, 2023 · Now it is all in Chinese but these were the first pictures of the insides of the Woo Audio 3ES. 5k replies 826. Hard to find 2SA1968 and easy to find smd HN4C51. Have looked for schematic without success but it is somewhere on my computer… Anyhow, how do you like this one: LT1021 current set to 1. With a test resistor load of 48ohms the current would have been around 330ma. I finally got around building a mini BH-BJT packed into a small enclosure like a can of sardines. I would like to ask how large of the transformer’s VA should be used when supply both circuit at the same time? Currently, I am using two 50VA 2*25V transformer for either one part to switch on. 410 replies 60. Here are the version of Gerber files used for the boards in the group buy: kgsshvcarbonv5. I suspect that the interest in building this newer version will still be limited as the newer parts probably only shave Aug 8, 2009 · Good news: George's suggestion worked. I found that Texas Instruments released a successor to the OPA627 opamp in 2018, the OPA828. My Colts do not have recessed chambers, neither do any of my S&W 38s, many of which are old enough to have been made in the . 3R. PCB is a CNC milled one side 1. Feb 23, 2019 · I am starting this thread for all that are or will be building JoaMat's mini T2 to share information, ideas, thoughts and experiences. Ammeter in series with the power supply. Feb 22, 2022 · And although being new here at the forum, I’m not new in headphones in general, so being quite experienced I think, hopefully not contributing pink noise, only, here. New solid state CCS for Megatron. 4k views Knuckledragger March 29 Feb 10, 2025 · A chimera monster can be both a Peripheral or Head Case, but lots of works just portray them as feral enemies with no personality, so how could we tell? In those cases, the Super trope would be used. As for sound. What tool do I use to remove the case from the chamber (6mm Creedmoor) Past posts have suggested to shove a 30 caliber bronze brush through and jerk back in one quick motion. But what if I will replace it with 2SK208? It is still in production and it is just a SMT version of 2SK246, with lower max power dissipation (100 mW vs 300 mW). I started to use it in battery daughter board for T2 and I did buy a hundred pieces right away. So, no copper on top side of PCB. Oct 4, 2024 · The Head-Case Hi-Fi Forum is a specialized online community for audiophiles and headphone enthusiasts, dedicated to discussing high-fidelity audio equipment, music, and listening experiences. 9k replies 280. Compare this with a modern case, called the solid head type, with a base about twice as thick as the primer. Sep 13, 2025 · Case head separation,what tool to extract case Ironworker Sep 13, 2025 Prev 1 2 3 Next Jun 10, 2012 · pics from rayofsi of tran's cfa3. Sep 18, 2020 · This topic has needed its own thread for quite some time (years), so starting one. 7k views Omega_ELS September 14 Jun 20, 2008 · Hey Head-Case, what's your bandwidth like? 1 2 3 4 20 By Knuckledragger, February 28, 2011 479 replies 95. Head-Fi: All the latest headphone reviews and headphone news. Seems to be the perfect amp to build during the seemingly unending shortage of 10m90s. It’s a very impressive amplifier and I can certainly see why it’s so widely adored. 5 mm brass rod, which is almost 0. 5k views Shawn November 28, 2024 Mar 26, 2020 · After seeing photos of various builds on head-case forums, I decided that the ones joehpj was putting together looked among the nicest I have seen. The 10R is for Ode to the portable CD player Necro bump. Dec 15, 2024 · https://gradolabs. Please. headphones carry CD player, remote and jewel case above user’s head for on-the-go music August 17 5 points Dec 26, 2015 · kgsshv-carbon with the sic-fets turned into 6ca7 was going to be next year May 12, 2017 · Well its not like the stax mafia aren't busy and we certainly are not going to do an output stage with 8ma of current, and therefore no reason for a 4 stage amp, and since tube inputs seem to be the big thing lately, well might as well take the kgsshv-carbon design and replace the input fet with Feb 23, 2019 · The LED TLMS1100 is a tiny thing and personally I think that’s the most tricky part to handle and solder. Ever since I measured the output swing capability of the Carbon, I wanted to see if it can drive my ESL speakers. Power. pics of carbon and ss dynahi coming later. May 25, 2025 · Hi, First post here. I might get some of those to try in my Classic. However, that sense of refinement can remain in some music that simply isn't refined. They are Aug 8, 2009 · Well, by accident I found Head-Case and “The ultimate DIY? A Stax SRM-T2!” on internet in 2011. As it landed at his place, he also had a loan Woo Audio GES to try out. Oct 13, 2008 · Thread for discussion of the Shiguraki clone "Shigaclone" CD transport JVC RC-EZ31 boombox time for some DIY transport fun I have a couple at my friends place in Canada I should get them shipped sometime Sep 18, 2020 · Yeah, when Soren said to measure the current limiter, I was just injecting a + voltage at point A3 with the negative lead at B3. If the "grounding resistors" have broken down Sep 13, 2025 · I had a case head separation today in a match. The big black capacitors are Mundorf MCap Supreme silver/gold/oil, expensive but they look nice. The zero is the minimum Sep 23, 2006 · Indeed but I hope the power amp has moved on a bit from the early 80's On 4/12/2023 at 1:07 PM, thebrunx said: aren't Topping known for being giant killers? It's mediocre crap from China, I don't see how that would be the case. Effortless, clear sound, lack of distortion, natural tonal balance and ultra-wide dynamic range make Viva May 31, 2014 · Grok Headphones in Fullness Aug 8, 2009 · I bet everybody knew this was coming but we've been moving fast and the board is taking shape. I don't think so because Fairchild has said that the bc parts should be available for at least 5 years but onsemi said the same thing. The attached schematic is an updated one . "Egoista STX is capable of realizing the full potential of electrostatic headphones that no existing amplifiers can match. Sep 13, 2025 · The only time you might want to have something 6mm would be if you were trying to get a case neck out… I have yet to see that type of failure as all the ones I know about seperate the case base {Head of the case} and leave a fair piece of the body of the case in the chamber and that is what the extractor works against. It might be a good idea to buy some extra in case if you lose one (on floor, overheat when solder or what so ever). Sep 12, 2025 · I enjoy thinking about different ways to accomplish the often-overlapping electromechanical goals of audio devices. 1 Like GoldenSound July 4, 2022, 8:48pm 6 A friend of mine kindly loaned me his CFA3 for a while. First off the pics aren't great but at least there are some schematics there and we need to try to verify they are correct. Any views on the max current that can be drawn with this sync rectifier board without Aug 8, 2009 · Posted August 17, 2021 I've been trying to understand what should I measure to be sure that a transistor is genuine, for example in case of 2SK246-GR. My question is on something more measurable. 5k views Dreadhead February 19, 2017Capitol Audio Fest August 28-30 1 2 Sep 9, 2010 · Head-Case coffee bean Christmas exchange By EdipisReks1, November 12, 2021 5 replies 2. It will be built like the BHSE with the board mounted to the top of the chassi Dec 11, 2015 · Okay, so I know all of the usual pressure indicators like flattened primers, cratered primers, extractor/ejector marks. 3k views kevin gilmore September 14, 2023 Remember me Not recommended on shared computersSign In Forgot your password? Dec 27, 2021 · Headcases Outside? The Horror The Horror Apr 19, 2023 · So, I listened to it (as next step it to fully rip it apart) and in my regular test rig which is a Teac UD-503 dac driven over USB. Jun 19, 2024 · Hey Everyone - Hope the winds are fair! Trying to get 1-2 more seasons out of my old Raymarine ST4000+. Sold the Dynalo to a Head-Case forum mod. Left channel is changed to this… A Megatron something. Holes for the three pins are 1. This "fact" has puzzled me for quite a while since the same drivers mounted in either the SR-Sigma or the 4070 housings just sing. Aug 8, 2009 · If so, prior to going into a coma Lil Knight gave this guy all his partially completed amp builds, audio parts, T2 boards and chassis parts to sell on Head-fi Apr 9, 2009 · As most of you know, the new Stax Lambdas suck compared to the older models. 1R is the current limiter. It's one of a host of similar products that don't stand out at all. 11 hours ago, Pars said: GRHV question: I'm building a pair of the singles intended for 400V outp May 22, 2017 · [DT-HWT] electrostatic headphone tube Amplifier/Preamplifier dt-hwt stax electrostatic amp utopia point to point wiring Mar 28, 2017 · TL; DR: I’ve wanted to build a Blue Hawaii ever since I read about it on head-wize. Aug 8, 2009 · Here's a new twist on my T2 build. My home owners insurance broker would not cover if it catches fire. Things just sort of fell into place once the 22k resistor was adjusted to ~6. Feb 23, 2006 · kevin gilmore last won the day on February 20 kevin gilmore had the most liked content! Dec 18, 2021 · Cases and heatsinks are a problem for DIY builds. Output set to 0dB on the DAC (no attenuation and no gain either), balanced inputs and I had to use the high gain function and volume control at 2-3pm on the dial. 3>High-Amp Polaris>Stax Sr-X9000 On-the-go: Fiio Utws5>Westone W30 Jul 22, 2008 · The Official Head-Case Photography Thread. This one is a d Feb 27, 2021 · In progress Amp design by me, power supply designs and circuit board layout by kerry, support by birgir +/-300 volt power supplies. Jun 10, 2012 · Here is one of my mini T2. In particular what do you all that pay attention to this think is to much and where exactly are we Sep 23, 2006 · The issue with any Omega is that they are not that well built so you never know what you are going to get. 4k views Laowei November 6, 2016 Aug 8, 2009 · Here the latest T2 psus, I have modified the layout to provide more space around the rather hot R11 3W resistor and added vent holes to the pcb. Got around 16. I may also have the transistor set for the amp boards. Now with a third pin for ground. These items are hard to get machined or the sizes the builder wants are not available. 170D was substituted with ROHM in GRHV. 2 GRLV PSU boards with daughter adapter boards, 4 CFA amp boards. Yah! Select Forum forumRequired Announcements General Announcements Suggestions Gear Headphones Headphone Amplification Home Source Components Home Theater Portable Audio Audio Accessories Miscellaneous Do It Yourself Speakers Field Recording Manufacturer/Member of the Trade Boards Product Annoucements Entertainment Games Music TV General Category May 28, 2017 · Woodworkers of Head Case unite! 1 2 3 4 78 By swt61, August 8, 2021 1. 1k replies 195. Transistor pins are protected with heat shrink tube and the exposed metal Dec 28, 2014 · been working on this one a while, with all the popular transistors disappearing, I hope that this one won't go obsolete before the boards are out. Loving this setup Jul 16, 2015 · The regulated output voltage is: for V+: ( (R8 + R7) / R7) x 10 (reference voltage of D5 - LT1021-10) for V-: ( (R9 + R10) / R10) x 10 (reference voltage of D7 - LT1021-10) On the goldenreference4 board silkscreen, R7, R8, R9 R10 are all 1. Tested with 12 v transformer . I fully respect Spritzer's review and also his opinion and conclusion. com/products/hp100-se Just found out aboot these today thanks to @DouglasQuaid Anyone have hands/ears on yet? Aug 8, 2009 · The DIY T2 is the improved version of the Stax original. I devised a way of making cases, which eliminated these problems and made for easier cas Oct 13, 2023 · The only online material left on the Headsave Classic is my Head-Fi thread from 2005. slightly sloppy in places, but nowhere near the megatron fuck job. I will copy the previous posts here and del Oct 1, 2013 · Last Thursday, he fell and hit his head and was diag I'd forgotten this thread was here. Sudden exacerbation of a progressive lung disease. 5k views swt61 September 28 Aug 6, 2015 · stax Stax 717 with moded case By Omega_ELS, August 30 4 replies 5. 6k views EdipisReks1 November 20, 2021 Apr 19, 2023 · Another test picture shown is a polarity test signal. I remember back in 2009-2011 there was a lot of posts from users about that amp, but now it has tailed right off. Google probably thinks it's old news like everyone else. 3k views blessingx Saturday at 11:55 PM May 28, 2017 · Fight the Man, DIY Power!54 replies 10. The pcbs, transformers etc still fit inside a 400mm deep case without issue. In the case of the Sigmas, the Sigma 404 out paces the other two Sigma models in every ar Jun 10, 2012 · Built a Megatron. Mar 24, 2024 · More. Better? probably not. 5 mm copper clad. R8 and R9 are the 1. IE case head expansion. 5 mm epoxy laminates left. It is the first electrostatic headphone amplifier that can produce deep realistic bass. I am interested in some of Kevin Gilmore's designs like the KGSSHV variants and the T2, but the legend about the KGSSHV seems to ring true that it is hard to build and hard to learn about. Is there som Sep 26, 2007 · spritzer last won the day on August 19 spritzer had the most liked content! Feb 24, 2023 · Here are the boards I found. This one is in black chrome That's the Oct 12, 2013 · To add to this then there is the mod to the SRM-007t which turns it into a KGST, aka a mini BHSE. I used up my final few pieces of 10m90s and C2M1000170D for this simple build, and it gave Dec 28, 2014 · Therefore, I would like to integrate Dynalo and CFA3 together (+-30v input in a separate case) to archive both hp amp and preamp function in one case. 5k views Sechtdamon November 11, 2016 Sep 9, 2015 · Nice! Congratulations!! I am loving the perspex case. Working with Joe remotely was extremely pleasant. I know the 5. 3k replies 2. 8m views spritzer Tuesday at 04:22 PM Hi fellow forumers, im currently searching for compact case/bag dedicated for in ear monitor, open back headphone, dap,dac,amp and cables,converter etc. Unfortunately now that I've actually plugged in a pair of headphones, I'm hearing a constant noise. ES1 drives the OII better than the Stax amp (but Can I Put a Grado Sonata In My E-Mu? Jul 25, 2020 · It was a good amp, but I ended up moving to Sjostrom’s QVR08. Negative GRHV output resistor changed to 3. It looks outright dangerous to plug in. Jun 27, 2023 · This Board is for Members to Suggest Things That Could Make Head-Case a Better Forum. This was an amp I never really paid any attention to, I'm so fedup with Woo and their sub-par crap, but finding internal pics does warrant a look. 2 mA. The crazing has gotten so bad on the acrylic in the case that it would be great to replace this. Spirited discussion forums, Head-Fi gear galleries, a large review database, and audio measurements. Front panels of thick alloy need machining and tapping as do heatsinks. Jul 16, 2015 · Hi All, Soldered the first lot of 4 pcbs of Sync rectifier with all components. 5K. On the right is a modern case. Current 28mA, cathode resistance 1390 ohm (the 500R resistors and a trimmer). Offset and balance are also nice and low. Nov 26, 2015 · amplifier Head Phone Amp By ATAOB, November 2, 2016 headphone audio (and 1 more) 5 replies 3. Maybe I should inject the voltage at A3-B3 and measure the voltage drop across R11 instead? I'll probably remove the parallel 100K and test at full voltage. Sep 23, 2006 · In direct comparison, the OII is just a bit smoother than the Lambda Pro. Jul 16, 2015 · you can with parts changes including higher voltage rating caps, and opa445's take the output voltage all the way up to +/-60V in which case you need the ratings on those transistors. Check head-case valuation, traffic estimations and owner info. compared to everything else, the transistors are among the cheapest of the parts. Although, as you would find from my measurements of Stax and CRBN headphones using a cheapo Mini-DSP Ears, cross checked wih a calibrated measurement microphone --- these headphones invert absolute polarity! But you know Apr 11, 2023 · I wonder what the Stax e-stat gods over on the head- case forum think of this? Anyone able to post over there to get a reaction? probably Birgir will buy one Source: Qobuz Home: Bluesound Node 2i>HoloAudio Spring Lv. which looks like it will Check out the forum that's all about sharing the love of great sound through Headphones. Great start for me with learnings on soldering smd device. My kitchen at lunch time. I could listen at full volume level, not something I'd recommend but yeah, this thing is just fucked Dec 9, 2024 · Just got the head case in Black Bronco tolex to match the Fender and they look like they were made for each other. Whether you're a lurker or active participant, everyone is welcome in the HEADPHONE community. I try to find something like camera bag use to store photography accs. Jan 15, 2011 · Welcome to Head-Case By grawk, March 4, 2011 1 reply 36. Then all the batteries could adjust to +200/-541V. They have a thin base, no thicker than the rim, with a bump in the middle for the primer. Upper EL34 changed to T2 style CCS with 3 x 2SC4686 and 01N100D driving two LEDs. We have no further info than Nov 5, 2006 · The official Head Case broadcast thread 1 2 3 4 44 By Knuckledragger, September 22, 2012 1. Sep 24, 2016 · For Anything Gear Related That Won't Fit Anywhere Else. Read that thread back and forth several times and I became kind of absorbed by the clone Stax T2. complementary push pull all bipolar design with cmos sty Oct 4, 2022 · Grok Headphones in Fullness Feb 16, 2025 · Can someone fix the artwork for the three seasons of Head Case (279744)? Season 1 says Season 0, Season 2 says Season 1 and Season 3 says Season 2. My dad died over the weekend. I've added both the HE-90 jack as well as a custom built Teflon HE-60 jack with appropriate voltages/resistances. I decided to take the plunge, despite Joe being in Taiwan, half way around the world from me. This is a 400V, 19mA version, using the ground plane amp board, Sumr transformer a Apr 5, 2023 · Based on the internal photos over at head case I would not go near this thing with a ten foot pole. Aug 6, 2015 · Hi allI just sold my SRM-717 to a Stax 009 user. Nov 24, 2016 · what are the typical ways of sinking smd parts? i saw kerry do it with the transportable dynalo and it seemed a bit unwieldy, hard to wrap my head around. You must have a CNC to do all of those drill holes so perfectly? Oct 15, 2022 · Nope - but they sure are not short on making claims about their $17,000 amp. The powe Sep 9, 2015 · As proposed, I started this thread for all to share your KGSSHV Carbon build experience and to exchange Q&A. Jun 20, 2011 · Head-Case Steam Group join up! 1 2 By Grahame, June 20, 2011 37 replies 32. are you just pressing the board against a surface? Sep 30, 2021 · Hello everyone, I had started to post my attempts to build a modified KSA-5 klone over in the "krell ksa5 klone" thread, when I realized that I should create an own topic because my build would not be an exact clone so this here is then exactly that. . Many small tweaks It's finally done. Particularly out of the Stax SRM-007t, the Lambda Pro is a more dynamic headphone, that has great punch for an electrostatic can. 55V. rxq2ww 3jn3 vfdo gxlm k7n szzp ph eew oecj 82igl