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  1. Two-Way Headset Wiring
  2. whats worng with this circut
  3. Phono amp top slot board for O2 amplfier in B3 case
  4. Szekeres VE protection diodes?
  5. Headphone Amp Feels 'Electrified'
  6. Design Issue: Cascaded passive filer stages
  7. Headphone amp between source & amplifier - how to passthrough?
  8. Open Source Headphone Amplifier
  9. OPA2132/4 for headphones
  10. O2 LiPo Daughterboard
  11. Class AB with op-amp input, audible noise
  12. PCB check for a simple amp
  13. Home meade design AMP prob's
  14. Noise - how much is too much?
  15. Massively parallel LME49990 headamp
  16. Building the O2 - A novices build experience
  17. A Through-hole "Wire" Amp
  18. Adding a headphone output to CD PLAYER?
  19. Rod Elliot 113 - Headphone amp TOO MUCH GAIN
  20. Dual O2-Inspired, SMD Headphone Amp
  21. Low impedance phones, Please suggest amp design?
  22. Huge change in audio quality simply by changing the pads on headphones?
  23. what next, help please
  24. DIY isodynamic headphones?
  25. DIY replace jack plug: strange colors
  26. Canjam 2013 ?
  27. Can you disable DAC on O2 ODAC?
  28. Can i connect my sony pulse wireless heaset to a TV ?
  29. Audio controlled voltage mod.
  30. AKG K518
  31. Composite amplifier in class A
  32. A great Fostex T50RP amp?
  33. helmet speakers
  34. Ambisonics, and listening to binaural via speakers
  35. Cheap but linear headamp
  36. Thin Durable Flexible Wire to Fix Headphones
  37. If headphones are out-of-phase, can you hear it?
  38. Oatley K272 DC power options.
  39. A curious Inquiry involving internal headphone amp/powering multiple earbuds?
  40. recommend me a valve headphone amp - Beyer T1 & AKG Q701 etc
  41. HP amp out impedance vs. HP impedance
  42. O2 help with bass boost and 1/4 jack mods
  43. Anyone ever used LM4780 for headphones?
  44. Stax Type 1 headphone, anyone know what these are?
  45. DIY balanced headphone amp?
  46. Simple headphone amp from spare parts
  47. SENNHEISER HD800 Source Impedance
  48. TDA1308 - changing gain resistors
  49. Headphone Amp Selection?
  50. Classic v1 headphone amplifier
  51. RFI problems on diy headphone amp.
  52. power flickering on tube cmoy amp
  53. question about a circuit
  54. hello all is a dac worth buying
  55. Passive bell shaped EQ for headphones
  56. GLASS-SAND CLASS A TUBE MOSFET HYBRID HEADPHONE AMP
  57. HD650 can I fix this?
  58. Headphones Amplifier HIFI
  59. An "O3" - 35% smaller SMD RS O2 headphone amp version
  60. need help with headphones
  61. Moe'stevens O2
  62. Need help - using J A Burgess 45 SE amp for headphones
  63. Akai EIE Pro or Lexicon I-O|22 for AKGQ 701 [Specs inside]
  64. Power switch driver board(Momentary switch) + output relay board(delayed ON/fast OFF)
  65. OpAmps to drive HD650 from AK4399 Vout DAC
  66. Where to place current limit output resistor?
  67. Headphone amp noise. Help!
  68. USB DAC & headphone Amp with 3D Printed Enclosure
  69. DIY amp/DAC with better measurements than O2/ODAC?
  70. Battery powered 4W amp
  71. stuffing cotton balls in headphones?
  72. Measuring headphone FR?
  73. LM1875 based amp by Sijose
  74. A version of an O2 Desktop Amp (ODA)
  75. ESP P113 voltage gain of 1, will it work?
  76. The No Headphone Amp!
  77. Help Needed - Push Pull Transformer replacement
  78. Improving Bass Response On A Popular Hybrid Design
  79. Koss Esp-9 to ESP-9b Conversion... Help needed with grounding scheme
  80. High power headphone amp
  81. New Modular Headphone Amplifier
  82. full range planar headphones using neodynium magnets
  83. JLH Chiarra or Hifisonix Class A buffer?
  84. Sennhesier HD424
  85. 2-channel regular ground, dual mono or "balanced"/bridged?
  86. Jack Plug Wiring Help
  87. New Portable Amplifier Project started
  88. Pimeta V2 or O2?
  89. JLH Class A headphone amp from ETI not WW
  90. Left/Right Channel balancer
  91. Choosing a DC storage/rail cap for cmoy like amp
  92. Feedback resistor size - opamps
  93. Can I add a Potentiometer to these Headphones?
  94. Headphone distribution schematics
  95. Stax upgrade recomendations please.
  96. tube amp designs for low impedance headphones?
  97. headphone buffer/output for usb/dac
  98. Personal EQ & AMP for Hearing loss
  99. Grado RS1 headphones
  100. MOSFET Headphone Amplifier
  101. Lehmann clones
  102. which amplifier kit on ebay?
  103. Koss HV/1LC - specifications
  104. Headphone maximum power
  105. Output device for SE Hybrid Headphone Amp
  106. Output impedance as compensation?
  107. New Headphone Amp kit supplier in OZ
  108. suggestion for a 200$ headamp
  109. Replace Blackbox m10 3-prong jack
  110. Sony MDR-V6 changed?
  111. New portable amplifier
  112. New portable amplifier
  113. Stax SRM-212 repair?
  114. Audiophile Gear vs. ODAC/O2 (DAC’s and Amp’s)
  115. Sennheiser HD650 vs AKG Q701 QJ
  116. Split-supply portable headphone amp / DAC
  117. A47 / Crystal CMoy
  118. Electrostatic Headphones
  119. akg k140 earpads
  120. Which design is better for portable linear amplification?
  121. Midgård, compact, low distortion, high quality, Class A Lateral FET headamp
  122. Copper for Headphone Amp Chassis
  123. The DAO SE all-FET Class-A ZGF Headphone Amplifier
  124. What is this?!
  125. Background noise - tube amp
  126. Am the only one who's not deaf....?
  127. Grado GS1000 died
  128. lme49600 buffering the output of a generic soundcard
  129. LMH6643 amplifier
  130. Balanced input headphone amp
  131. Rigs test
  132. Kevin Gilmore KGSSHV boards
  133. Universal Headphone Amp - fits different headphones
  134. Headphone distribution block (passive)
  135. Calculating audio transformer losses?
  136. O2 headphone amp with 4x 8.4V cells
  137. how to mix sound from notebook and external sound card and get headphones output
  138. Koss HV/1LC foam Ear Pads
  139. Any DIY/Upgrade Components Ideas for Bravo Audio V2 12AU7 HeadAmp?
  140. Class A mosfet headphone amplifier. How does it look?
  141. Headphone Connections
  142. Headphones
  143. my new MING DA MC300-EAR headphone. Would like your suggestions.
  144. Best Sounding AMP for IMOD ( Modded ipod ) LOD
  145. Any point in adding a audio transformer for more power?
  146. Convert Low V Aikido line stage to headphone use?
  147. Balder, OPA2134+BUF634 Headphone Amplifier
  148. A good Headphone Amp for AKG K240DF anybody? It's 88dB and 600ohm, Thank you.
  149. Converting an Amp to Balanced XLR
  150. Calculating output impedance of Morgan-Jones headphone amp?
  151. norrisr
  152. modulation-like distortion of music at low volumes
  153. My E5 Class A hifi headphone amp
  154. Midgard, a low distortion Lateral FET output Headphone Amplifier
  155. can someone look this over?
  156. STAX Earspeaker part
  157. noise cancelation
  158. Best headamp for Hifiman planars?
  159. Headphone Passthrough Techniques
  160. I need Amplifier.
  161. Tone Stack with 2 knobs and switches
  162. Another 6922/6AS7 OTL Project
  163. Can anyone help me, repairing my DACPort
  164. Upgrading ICs in headphone amps
  165. Creating headphone jack from speaker out
  166. resistors in cmoy
  167. Electret Mic -> Headphones
  168. akg 240M ear pads
  169. "Balanced" vs single ended headphone drive
  170. Source for these Aluminum headphone cases/chassis?
  171. How do I Improve bass handling in a headphone amp?
  172. Little help please
  173. Objective2 as preamp (Help Needed)
  174. Best Earbud (not earplug) headphones to buy?
  175. help with caps and resisters
  176. A small, low-voltage, battery operated amplifier
  177. O2 Headphone amp gerber files problem
  178. Audez'e LCD-2 - help needed for a DIY cable build
  179. My Objective 2 having weird issues
  180. Beyerdynamic A1 kit
  181. M-stage Op amp replacement (for the better)
  182. First amp build; need help choosing and understanding amps
  183. Want to build Unusual high powered battery powered headphone amp (and equalizer)
  184. Single Stator Electrostatic Headphone - issues?
  185. Just made o2 amps, now what? :)
  186. Pioneer SE-50 worth saving?
  187. Measuring and Correction of Frequency Response for Head-Phones
  188. MiniDSP for headphone EQ & crosstalk?
  189. Impedance balancing of headphones + pot
  190. TPA6120A2 with balanced crossfeed?
  191. NOOB DIY need some help.
  192. Building the O2 Headphone Amp
  193. Diamond buffer headphone amp- can I parallel outputs?
  194. B-Board Boxer Prototype Build Thread
  195. headphone amps vs headphone inputs?
  196. Amp between Xonar D1 and Audio Technica ATH-M50
  197. Quick CMOY Question
  198. Bias and stability
  199. Help with new DIY amp decision (5th Gen iPod, LOD, and 250ohm DT770 Pro)
  200. Wow daughter asks dad for help
  201. How many different versions of "The Wire" are there?
  202. Headset goes to surgery :)
  203. What is a portable headphone amplifier?
  204. A bit of DIY advice required
  205. $6 headphone amplifier from ebay
  206. Headphone cable wiring
  207. OPA AMP
  208. Single ended DAC + TPA6120, where to put the pot?
  209. Mjølner, another all discrete Lateral FET Headphone Amplifier
  210. Newb Going Down CMOY Blvd Hits Big Roadblock
  211. Matrix M-Stage Amp blew out gasket!
  212. CMoy Ahoy! Help!
  213. a portable headphone amp with bass and treble tone controls
  214. First build, CMOY
  215. Simplistic Class A MOSFET Headphone w Feedback: have I got my values right?
  216. Diy new headphone band.
  217. HA-PRO2
  218. Jecklin Float Model One
  219. β18 Stereo Headphone Amplifier
  220. High end Ortho Amp on a basic Russian Tube DHT SET DIY design
  221. boraomega´s STACATO HeadPhoneAmplifier
  222. Beware of Fake Beats Mixr Headphone
  223. DIY headpone amp with ~300mA output
  224. JDS Labs Charity Raffle - Prizes include 0DAC, 02, c412 and cMoy BB
  225. Balanced OTL headphone amp
  226. ODAC + PGA2320 + The Wire = The ultimate budget headphone system
  227. Modified CMOY amp sounds to low with certain head phones...
  228. Which to buy
  229. I'm designing a TPA6120 based headphone amp, is there anyone can give me some advice
  230. Cmoy BB linear PSU enclosure
  231. Use +12V PC molex connector to power headphone amp?
  232. DIY 7.1 Sorround Headphones ala the Razer Tiamat
  233. Split-supply 3.7v to +/-~7v IC for pocket amp
  234. Any good DIY amps for low impedence/high sensitivity headphones?
  235. Tube headphone amp kit up to 300USD
  236. Show my best headphone to you? Believe or not??
  237. shooting earmuff headphones
  238. my gilmore class A amp
  239. O2 enclosures. Something less clunky?
  240. TPA6120 power supply?
  241. KonoAudio Retro Headphone Mod
  242. Marsh headphone amp from Linear Audio
  243. Distributor/buffer for 4 headphone amps ???
  244. THE PIPE
  245. Cayin HA-1A Help
  246. First Amp, Class A
  247. Little BTL Amplifier - ZIPPO BTL
  248. Op. Amp + MOSFET Follower
  249. Troubles with E3 Headphone Amp kit
  250. Fostex TH series - thoughts?

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