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  1. Beats by Dr Dre headphones or alternative models/brands?
  2. In line sound limiter for headphones
  3. Adjustable Ear phone volume limiter
  4. MOSFET follower to my phone
  5. Crazy CMOY board
  6. starving student vs jonokuchi or hybrid vs tubes for hd600 and sr80i ?
  7. Tube/SS OTL single tube recommendations
  8. Pseudo Bravo headphone amplifier
  9. PUSH-PULL HEADPHONE AMP
  10. Single valve amp
  11. My desktop Objective2 amp
  12. O2 loud turn on transient fix help...
  13. Help wanted to find an old schematic
  14. Dual TPA6120A2 headphone design to eliminate crosstalk
  15. Need an AMP recommendation, and have a couple questions.
  16. Pot value in cmoy
  17. YAHA HELP
  18. OPA827 + Diamond Buffer
  19. newbie qustion
  20. Advice on USB Soundcard / USB DAC + Amplifier
  21. 6n2 + fu32 vacuum tube tube headphone amplifier
  22. Headphone amp recommendation required?
  23. Tube Headphone amplifier suggestions 2x(1:40) transformers
  24. Different grounding, different sound quality or what can be the problem?
  25. Radio Shack Digital to Analog Converter
  26. 2SC1815 alternative for Mini Zen
  27. Two-Way Headset Wiring
  28. whats worng with this circut
  29. Phono amp top slot board for O2 amplfier in B3 case
  30. Szekeres VE protection diodes?
  31. Headphone Amp Feels 'Electrified'
  32. Design Issue: Cascaded passive filer stages
  33. Headphone amp between source & amplifier - how to passthrough?
  34. Open Source Headphone Amplifier
  35. OPA2132/4 for headphones
  36. O2 LiPo Daughterboard
  37. Class AB with op-amp input, audible noise
  38. PCB check for a simple amp
  39. Home meade design AMP prob's
  40. Noise - how much is too much?
  41. Massively parallel LME49990 headamp
  42. Building the O2 - A novices build experience
  43. A Through-hole "Wire" Amp
  44. Adding a headphone output to CD PLAYER?
  45. Rod Elliot 113 - Headphone amp TOO MUCH GAIN
  46. Dual O2-Inspired, SMD Headphone Amp
  47. Low impedance phones, Please suggest amp design?
  48. Huge change in audio quality simply by changing the pads on headphones?
  49. what next, help please
  50. DIY isodynamic headphones?
  51. DIY replace jack plug: strange colors
  52. Canjam 2013 ?
  53. Can you disable DAC on O2 ODAC?
  54. Can i connect my sony pulse wireless heaset to a TV ?
  55. Audio controlled voltage mod.
  56. AKG K518
  57. Composite amplifier in class A
  58. A great Fostex T50RP amp?
  59. helmet speakers
  60. Ambisonics, and listening to binaural via speakers
  61. Cheap but linear headamp
  62. Thin Durable Flexible Wire to Fix Headphones
  63. If headphones are out-of-phase, can you hear it?
  64. Oatley K272 DC power options.
  65. A curious Inquiry involving internal headphone amp/powering multiple earbuds?
  66. recommend me a valve headphone amp - Beyer T1 & AKG Q701 etc
  67. HP amp out impedance vs. HP impedance
  68. O2 help with bass boost and 1/4 jack mods
  69. Anyone ever used LM4780 for headphones?
  70. Stax Type 1 headphone, anyone know what these are?
  71. DIY balanced headphone amp?
  72. Simple headphone amp from spare parts
  73. SENNHEISER HD800 Source Impedance
  74. TDA1308 - changing gain resistors
  75. Headphone Amp Selection?
  76. Classic v1 headphone amplifier
  77. RFI problems on diy headphone amp.
  78. power flickering on tube cmoy amp
  79. question about a circuit
  80. hello all is a dac worth buying
  81. Passive bell shaped EQ for headphones
  82. GLASS-SAND CLASS A TUBE MOSFET HYBRID HEADPHONE AMP
  83. HD650 can I fix this?
  84. Headphones Amplifier HIFI
  85. An "O3" - 35% smaller SMD RS O2 headphone amp version
  86. need help with headphones
  87. Moe'stevens O2
  88. Need help - using J A Burgess 45 SE amp for headphones
  89. Akai EIE Pro or Lexicon I-O|22 for AKGQ 701 [Specs inside]
  90. Power switch driver board(Momentary switch) + output relay board(delayed ON/fast OFF)
  91. OpAmps to drive HD650 from AK4399 Vout DAC
  92. Where to place current limit output resistor?
  93. Headphone amp noise. Help!
  94. USB DAC & headphone Amp with 3D Printed Enclosure
  95. DIY amp/DAC with better measurements than O2/ODAC?
  96. Battery powered 4W amp
  97. stuffing cotton balls in headphones?
  98. Measuring headphone FR?
  99. LM1875 based amp by Sijose
  100. A version of an O2 Desktop Amp (ODA)
  101. ESP P113 voltage gain of 1, will it work?
  102. The No Headphone Amp!
  103. Help Needed - Push Pull Transformer replacement
  104. Improving Bass Response On A Popular Hybrid Design
  105. Koss Esp-9 to ESP-9b Conversion... Help needed with grounding scheme
  106. High power headphone amp
  107. New Modular Headphone Amplifier
  108. full range planar headphones using neodynium magnets
  109. JLH Chiarra or Hifisonix Class A buffer?
  110. Sennhesier HD424
  111. 2-channel regular ground, dual mono or "balanced"/bridged?
  112. Jack Plug Wiring Help
  113. New Portable Amplifier Project started
  114. Pimeta V2 or O2?
  115. JLH Class A headphone amp from ETI not WW
  116. Left/Right Channel balancer
  117. Choosing a DC storage/rail cap for cmoy like amp
  118. Feedback resistor size - opamps
  119. Can I add a Potentiometer to these Headphones?
  120. Headphone distribution schematics
  121. Stax upgrade recomendations please.
  122. tube amp designs for low impedance headphones?
  123. headphone buffer/output for usb/dac
  124. Personal EQ & AMP for Hearing loss
  125. Grado RS1 headphones
  126. MOSFET Headphone Amplifier
  127. Lehmann clones
  128. which amplifier kit on ebay?
  129. Koss HV/1LC - specifications
  130. Headphone maximum power
  131. Output device for SE Hybrid Headphone Amp
  132. Output impedance as compensation?
  133. New Headphone Amp kit supplier in OZ
  134. suggestion for a 200$ headamp
  135. Replace Blackbox m10 3-prong jack
  136. Sony MDR-V6 changed?
  137. New portable amplifier
  138. New portable amplifier
  139. Stax SRM-212 repair?
  140. Audiophile Gear vs. ODAC/O2 (DAC’s and Amp’s)
  141. Sennheiser HD650 vs AKG Q701 QJ
  142. Split-supply portable headphone amp / DAC
  143. A47 / Crystal CMoy
  144. Electrostatic Headphones
  145. akg k140 earpads
  146. Which design is better for portable linear amplification?
  147. Midgård, compact, low distortion, high quality, Class A Lateral FET headamp
  148. Copper for Headphone Amp Chassis
  149. The DAO SE all-FET Class-A ZGF Headphone Amplifier
  150. What is this?!
  151. Background noise - tube amp
  152. Am the only one who's not deaf....?
  153. Grado GS1000 died
  154. lme49600 buffering the output of a generic soundcard
  155. LMH6643 amplifier
  156. Balanced input headphone amp
  157. Rigs test
  158. Kevin Gilmore KGSSHV boards
  159. Universal Headphone Amp - fits different headphones
  160. Headphone distribution block (passive)
  161. Calculating audio transformer losses?
  162. O2 headphone amp with 4x 8.4V cells
  163. how to mix sound from notebook and external sound card and get headphones output
  164. Koss HV/1LC foam Ear Pads
  165. Any DIY/Upgrade Components Ideas for Bravo Audio V2 12AU7 HeadAmp?
  166. Class A mosfet headphone amplifier. How does it look?
  167. Headphone Connections
  168. Headphones
  169. my new MING DA MC300-EAR headphone. Would like your suggestions.
  170. Best Sounding AMP for IMOD ( Modded ipod ) LOD
  171. Any point in adding a audio transformer for more power?
  172. Convert Low V Aikido line stage to headphone use?
  173. Balder, OPA2134+BUF634 Headphone Amplifier
  174. A good Headphone Amp for AKG K240DF anybody? It's 88dB and 600ohm, Thank you.
  175. Converting an Amp to Balanced XLR
  176. Calculating output impedance of Morgan-Jones headphone amp?
  177. norrisr
  178. modulation-like distortion of music at low volumes
  179. My E5 Class A hifi headphone amp
  180. Midgard, a low distortion Lateral FET output Headphone Amplifier
  181. can someone look this over?
  182. STAX Earspeaker part
  183. noise cancelation
  184. Best headamp for Hifiman planars?
  185. Headphone Passthrough Techniques
  186. I need Amplifier.
  187. Tone Stack with 2 knobs and switches
  188. Another 6922/6AS7 OTL Project
  189. Can anyone help me, repairing my DACPort
  190. Upgrading ICs in headphone amps
  191. Creating headphone jack from speaker out
  192. resistors in cmoy
  193. Electret Mic -> Headphones
  194. akg 240M ear pads
  195. "Balanced" vs single ended headphone drive
  196. Source for these Aluminum headphone cases/chassis?
  197. How do I Improve bass handling in a headphone amp?
  198. Little help please
  199. Objective2 as preamp (Help Needed)
  200. Best Earbud (not earplug) headphones to buy?
  201. help with caps and resisters
  202. A small, low-voltage, battery operated amplifier
  203. O2 Headphone amp gerber files problem
  204. Audez'e LCD-2 - help needed for a DIY cable build
  205. My Objective 2 having weird issues
  206. Beyerdynamic A1 kit
  207. M-stage Op amp replacement (for the better)
  208. First amp build; need help choosing and understanding amps
  209. Want to build Unusual high powered battery powered headphone amp (and equalizer)
  210. Single Stator Electrostatic Headphone - issues?
  211. Just made o2 amps, now what? :)
  212. Pioneer SE-50 worth saving?
  213. Measuring and Correction of Frequency Response for Head-Phones
  214. MiniDSP for headphone EQ & crosstalk?
  215. Impedance balancing of headphones + pot
  216. TPA6120A2 with balanced crossfeed?
  217. NOOB DIY need some help.
  218. Building the O2 Headphone Amp
  219. Diamond buffer headphone amp- can I parallel outputs?
  220. B-Board Boxer Prototype Build Thread
  221. headphone amps vs headphone inputs?
  222. Amp between Xonar D1 and Audio Technica ATH-M50
  223. Quick CMOY Question
  224. Bias and stability
  225. Help with new DIY amp decision (5th Gen iPod, LOD, and 250ohm DT770 Pro)
  226. Wow daughter asks dad for help
  227. How many different versions of "The Wire" are there?
  228. Headset goes to surgery :)
  229. What is a portable headphone amplifier?
  230. A bit of DIY advice required
  231. $6 headphone amplifier from ebay
  232. Headphone cable wiring
  233. OPA AMP
  234. Single ended DAC + TPA6120, where to put the pot?
  235. Mjølner, another all discrete Lateral FET Headphone Amplifier
  236. Newb Going Down CMOY Blvd Hits Big Roadblock
  237. Matrix M-Stage Amp blew out gasket!
  238. CMoy Ahoy! Help!
  239. a portable headphone amp with bass and treble tone controls
  240. First build, CMOY
  241. Simplistic Class A MOSFET Headphone w Feedback: have I got my values right?
  242. Diy new headphone band.
  243. HA-PRO2
  244. Jecklin Float Model One
  245. β18 Stereo Headphone Amplifier
  246. High end Ortho Amp on a basic Russian Tube DHT SET DIY design
  247. boraomega´s STACATO HeadPhoneAmplifier
  248. Beware of Fake Beats Mixr Headphone
  249. DIY headpone amp with ~300mA output
  250. JDS Labs Charity Raffle - Prizes include 0DAC, 02, c412 and cMoy BB

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