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Posts by Hifihedgehog

I absolutely love these speakers! I have access to them back at my permanent home, albeit with a much better amplifier, and so fun. I hear the Lepai LP-2020A actually works pretty well with them.http://www.amazon.com/Lepai-LP-2020A-Tripath-Class-T-Amplifier/dp/B0049P6OTI/ref=pd_cp_e_0http://www.head-fi.org/t/623550/amplifier-for-pioneer-sp-bs41-lr
Here is the CamelCamelCamel graph that shows it in all its glory. By the way, why does it look like it was insanely cheap for almost a year starting on September 2012? Talk about inflation!http://camelcamelcamel.com/Beyerdynamic-DT-250-250OHM-Lightweight-Headphone-Applications/product/B000CZ0RDI?context=browse By the way, who were the few who got earpads instead of headphones? I remember that little surprise hitting some...
You could always try the cheaper op amp rolling route, which was popular up until before the Objective2 turned the IC amp market upside down. I am building a PIMETA V1 for that very purpose--to see what flavors of op amps I like best. It is going to a unity gain setup for Objective2-level ultra low noise. I have some OPA 627's, AD843's, AD823's, AD86x0's and several others along with some buffers to switch around to see what I like best. I know that from an objective...
Here's a snapshot out of Head-Fi nostalgia for ya. Actually, it was only about two years ago this unbelievable deal was live. (In my opinion, it is second only to the $50 month or so old, like new HD600's someone got here through craigslist): http://www.head-fi.org/t/681890/dt-250-for-27-80
Boy, this brings me back memories of once, when Amazon priced the DT250 at 20 some odd dollars and a bunch of us here were on board to get them at that ridiculously low price, including myself. For some strange reason, I backed out the very last minute and I regret that decision to this day. At the very least, I could have resold them as like-new and made a killing on them.
And this is why: When 128 GB ain't quite enough, out with the old, in with the new, make what was the latest and greatest bargain bin fare, and make us pay up dearly for even more storage! (It's crazy that we can now fit our entire music libraries in lossless FLAC on one measily card that is about the size of a pinky's fingernail.)http://www.sandisk.com/about-sandisk/press-room/press-releases/2015/200gb-sandisk-ultra-microsdxc-uhs-i-card-premium-edition/
Understood. If even a group buy ever happens, it will happen under your go ahead to respect your hard work for the community these many years. Speaking of creating something new and interesting on someone's own, I do have an idea of a more advanced DIY device I have been wanting to make for some time: a digital ADC-DAC interface and headphone amplfier combo with a digital crossfeed filter. I think the merits of crossfeed have been getting pushed under the rug lately...
I just ordered what appears to be the greatest deal in PCB fabrication history. I will post the pictures when my PIMETA V1 boards arrive. I ordered from Maker Studio which charges only $10 plus about $6 shipping and handling for ten 10x10cm boards. Insanely cheap but it is 100% legil. They seem to be the new benchmark for this price point. The only noted problem is just a very minor ~1mm offset in the silkscreens which is nothing big at all to worry about in projects like...
I would definitely be in on this. I would probably want a couple at least for op-amp swapping, gifting to friends and family and such. The storefront idea would actually be quite simple for me to pull off. I own a URL ( theheadphonehub.com ) that I have wanted to get off the ground for some time--originally for an ad-based headphone review site but listen here, I have an even better idea. Instead, I could set up a non-profit circuit board group buying and non-profit...
Here are the latest PIMETA V1, PPA V1 and PPA V2 Gerber files. Note that that PIMETA V1 files do not have an outline file because of a minor incompatibility in PDF2GERB with non-rectangular board shapes. Related to this, the PPA V1 and PPA V2 now have outline files. Let me know how they work. I will probably get some PIMETA V1 boards fabricated in the next few weeks.   http://1drv.ms/1AdMLid
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