Bringing some gear like a scope and a multimeter would probably be great, we had some repairs to do last time.   Can I propose something interesting? I know the last time there was literally no periods of total silence; what if every half-hour or hour there's just a few minute time slot when...

Coming! Hifiman HE-400 Etymotic ER4-PT DUNU DN-2000 Phonak Audeo Pfe 132 Koss Portapro Fostex T20 (round diaphragm; a gem) O2+ODAC

Sorry to hear FallenAngel.. Lets help however we can. Thank you for being a good sport and doing this at all.   As earpads can make a huge difference, can y'all bring various pads, especially the wider / thicker leather hifiman earpads?   Does the room have wifi?

Finally! I've been meaning to attend a meet for YEARS. Excited! I can bring: IEM: - Etymotic ER4-PT (w/ PT to S converter cable) (recent model, not a decade old) w/ original cable and DIY Silver cable - DUNU DN-2000 hybrid triple driver - Phonak Audeo PFE132 (same driver as any other...

Check out these couple tests. One is from Reddit to which I replied to elaborate on and summarize:   From: https://www.reddit.com/r/audiophile/comments/2n5zwe/beating_the_24bit_horse/     This is incredible. Let me explain what was done to make this test with another file you can use...

PiccoloNamek,   The link to download Sinegen 2.1 from tucows here contains malware along with the download. You can extract the exe file using 7-zip and see it yourself. People trying the guide are getting directed to this courtesy of Head-Fi. I have posted about this half a year ago and...

HD681 are one of the best headphone available. Not for the price, but just one of the best. Easily can be priced at 300 dollars in sound quality, maybe the build leaves something to be desired but I think the point is you can smash them and grab the next pair out of storage and keep going.  ...

Thanks for the highly respectful input.   For anyone ending up her with this question, the results may be terrible, depending on your amp.   The TRS connector avoids short situations so there isn't much fear with shorting the amp unless your headphone cable or driver fails.   The problem...

I read somewhere that the HD681 and HD681 EVO differ only by cosmetic design. Perhaps all the added material makes them significantly heavier. The HD681 are really light to me, but I'm coming from some T50rp modded with a lb of clay and foam stuffed inside.   It looks like their headband is...

I received my HD681 (regular, with the red rings) in the mail. The headroom graphs are correct - this headphone suits my ears perfectly, as does the K271 mkII. I discovered my personal preference after sitting in many audio stores and trying on headphones, finally finding the K271. What I was...

I may be wrong but the adapter appears to provide a 20 ohm series resistance with the headphone? What is the role of the 2 ohm? This isn't my area of certainty which is why I'm posing the question; many amps are decent and provide great power for people with hundred dollar big hungry cans and a...

Yes Nikon, I accept the OP as it is. The ultimate point is that someone googling this would preferably want the answer in the OP. Many forget that long discussions about some methods often won't reveal a clean answer. A blog makes sense though.   Actually its a 125 WPC Amp. The model is...

Something specific about the K271 sounds amazing to me. It's interesting what Superlux has done and I'd like to grab a model with similar signature to the K271 mk2 for comparisons sake, and disassembly/inspection. From innerfidelity's headphone graphs, the HD681 look almost the same as the K271...

Something specific about the K271 is very synergistic with my ears. It's interesting what Superlux has done and I'd like to grab a model with similar signature to the K271 mk2 for comparisons sake, and disassembly/inspection. From innerfidelity's headphone graphs, the HD681 look almost the same...

The general consensus on using cheap/average receivers as headphone amps is that they suck due to the general practice of creating the headphone output by stepping the speaker out down with large (~200~800 ohm) resistors in series, creating an unfavorably high output impedance. There are...

The general consensus on using cheap/average receivers as headphone amps is that they suck due to the general practice of creating the headphone output by stepping the speaker out down with large (~200~800 ohm) resistors in series, creating an unfavorably high output impedance. There are...

Thank you bluemonkeyflyer!   I actually was mistaken. The felt adhesive is permeable. The soft felt has adhesive and is definitely limp, and when tested by pressing lips to the adhesive and blowing air, quite a lot of air flows through. The hard stiff one is also permeable but is very...

I got my T50RP and a mod kit. I have a few questions.   First off, I love the stock response of the T50RP. There are no spikes or dips - it seems to match my ears well, as do my absolute favorite phones, the K271mk2. However, something about the stock T50RP sounds wrong. I admit I'm not...

Just wanted to note that sinegen 2.5 has both of its mirrors 404'ing and the sinegen 2.1 from tucows has unavoidable malware attached. I have uploaded a legitimate sinegen 2.1 here:   https://docs.google.com/open?id=0B6IxqGzcxDWTeGhycEdFeEdhZzg   Unfortunately the first "how to equalize...

The link to download Sinegen 2.1 from tucows here adds a malicious toolbar along with the download. All tucows downloads have been doing this for months. You can scroll down all the way on a tucows download page (such as the link to download sinegen) and click "Uninstall Toolbar" at the bottom...

I reckon its driver distance from ears. Now that theres a 1-1.5cm gap between felt and ear opening the difference is much smaller but there. The T20 has a pronounced pan - probably cause the drivers are even closer to the ears? A small difference in earlobe shape means a large percentage...

Big question: On the T50RP, there is a little hole, earside through the felt and baffle, above the driver. It is not in the centre, but offset. It looks like they used the same piece for both channels, instead of making a symmetrical one for each side. The hole is top right of the driver on each...

Can someone explain the difference between running orthos amped and unamped? My current best source gear is a laptop output. I just got the T50RP and a 2004 T20 v2. They sound incredible; as someone wrote, it takes a minute every listen for it to click, then you understand ortho. Mind you I have...

I might be lucky:     The same day I pick up my T50RP I find a cared for, barely used 2004 T20 v2 locally. The T20 has a circular ortho diaphragm, and like the square one in the new T50RP, is specified as "Regulated Phase" Note old phone with quadruple sewing thread repair to headband...

It's endogenous. Stop trying and see it happen