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[Vintage] NwAvGuy O2 Headphone Amp for free
Hello, I cant use headphones anymore (health issue), this is a O2 Headphone Amp with a rear rean-tiny PSU connection. http://nwavguy.blogspot.com/2011/07/o2-headphone-amp.html- Silverprout
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- Replies: 0
- Forum: DIY (Do-It-Yourself) Discussions
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SONY NWZ-A10 Series
... now you know ... If you regulary discharge your battery at 100%, it really harms the battery. If you battery stay for a wile at 100% discharge, it really harms the battery a lot if it don't kill it directly.- Silverprout
- Post #7,070
- Forum: Portable Source Gear
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SONY NWZ-A10 Series
Hello, i've got two first batch units and the batteries are still ok. This guy is not lucky for two reasons, the defective batterie and the manufacturer very bad mentality (they are all the same when they are as big as Sony) You should try to open it and try to find technical informations...- Silverprout
- Post #7,066
- Forum: Portable Source Gear
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If you still love Etymotic ER4, this is the thread for you...
Yes, you should also verify the DC offset of your vinyl rips. http://manual.audacityteam.org/man/dc_offset.html- Silverprout
- Post #7,799
- Forum: Portable Headphones, Earphones and In-Ear Monitors
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If you still love Etymotic ER4, this is the thread for you...
Put multimeter on the 2V DC caliber at the jack output connector of your DAP.- Silverprout
- Post #7,796
- Forum: Portable Headphones, Earphones and In-Ear Monitors
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If you still love Etymotic ER4, this is the thread for you...
Fiio... it is a great brand. BUT you should measure the DC offset of your DAPS ASAP. I've got a DC issue in the past that kill one of my CIEM armature...- Silverprout
- Post #7,793
- Forum: Portable Headphones, Earphones and In-Ear Monitors
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If you still love Etymotic ER4, this is the thread for you...
Hello, Are you using a bass boost ? Is your amp pariculary well known to have a good bass rendering ?- Silverprout
- Post #7,789
- Forum: Portable Headphones, Earphones and In-Ear Monitors
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Home-Made IEMs
Hello, Are you sure that they are in parallel ? It looks like serial polarized capacitors... 1.1µF- Silverprout
- Post #4,519
- Forum: DIY (Do-It-Yourself) Discussions
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Home-Made IEMs
- Silverprout
- Post #4,401
- Forum: DIY (Do-It-Yourself) Discussions
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Home-Made IEMs
Yes they are. As described by manufacturers !- Silverprout
- Post #4,339
- Forum: DIY (Do-It-Yourself) Discussions
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Home-Made IEMs
The poor cat is blocked in a concrete filter... how set him free ? He should be so scared ! Sorry i was digressing a lot.- Silverprout
- Post #4,334
- Forum: DIY (Do-It-Yourself) Discussions
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Home-Made IEMs
... i fooled myself... RC filter is RC, it is just R and C.- Silverprout
- Post #4,330
- Forum: DIY (Do-It-Yourself) Discussions
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Home-Made IEMs
RC high pass need an inductor and the phase shift of a 4th order is 360°.- Silverprout
- Post #4,328
- Forum: DIY (Do-It-Yourself) Discussions
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Home-Made IEMs
Wow... every component have a inductive, resistive and capacitive part. So all IEMs have a very complex 4nd order filter, Amazing discovery ! Really.- Silverprout
- Post #4,326
- Forum: DIY (Do-It-Yourself) Discussions
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Home-Made IEMs
Yes, with UV gel you can take the time you want to position your tubes perfectly. PS : Nail art UV gels are not gels at all, they are high viscosity fluids, otology gel resin does not flow at all because it is a REAL gel.- Silverprout
- Post #4,322
- Forum: DIY (Do-It-Yourself) Discussions
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Home-Made IEMs
I was thinking it was a tubeless design (drilled horn), in this case the uncured resin migrate and fill the filters I make an hollow shell as fine as possible and i cut the end of the canal. Then, install the tubes and fill the canal end with gel resin... in this case you...- Silverprout
- Post #4,320
- Forum: DIY (Do-It-Yourself) Discussions
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Home-Made IEMs
Hello, How do you clean the uncured resin on the inner surface of the tube ?- Silverprout
- Post #4,315
- Forum: DIY (Do-It-Yourself) Discussions
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Home-Made IEMs
Knolwes DIY coupler You absolutely need an IEC 711 coupler to be respected and esteemed by the audiophile community !- Silverprout
- Post #4,301
- Forum: DIY (Do-It-Yourself) Discussions
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Home-Made IEMs
IMHO there is a lot of very useful informations for IEM designers on your links. Fantastic work but I want the sounds to be free of doing what they want to do... i don't like "boxes" at all (big and heavy bunkers) http://www.troelsgravesen.dk/Diy_Loudspeaker_Projects.htm Thsese...- Silverprout
- Post #4,289
- Forum: DIY (Do-It-Yourself) Discussions
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Home-Made IEMs
It can be a good solution... if you don't want to reinvent the wheel IMHO We have a lot of awesome loudspeaker manufacturers in my country (Focal, JMlab, Triangle, Davis, Elipson, Supravox, PHY, Audax.....) ... and some of them also sell loudspeaker parts for enthusiasts. DIY well designed...- Silverprout
- Post #4,287
- Forum: DIY (Do-It-Yourself) Discussions
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Home-Made IEMs
Just the coupler alone.- Silverprout
- Post #4,286
- Forum: DIY (Do-It-Yourself) Discussions
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Home-Made IEMs
Depending where you are !- Silverprout
- Post #4,278
- Forum: DIY (Do-It-Yourself) Discussions
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Home-Made IEMs
2W, my DAP (NWZ-A15) is delivering around 10mW (0.01W) You need a powerful DAP (around 500mW minimum) but my circuit can be reduced by 80% with SMD components.- Silverprout
- Post #4,261
- Forum: DIY (Do-It-Yourself) Discussions
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Home-Made IEMs
A FR of waterfall graph should be interesting IMHO.- Silverprout
- Post #4,259
- Forum: DIY (Do-It-Yourself) Discussions