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  1. My desktop Objective2 amp
  2. O2 loud turn on transient fix help...
  3. Help wanted to find an old schematic
  4. Dual TPA6120A2 headphone design to eliminate crosstalk
  5. Need an AMP recommendation, and have a couple questions.
  6. Pot value in cmoy
  7. YAHA HELP
  8. OPA827 + Diamond Buffer
  9. newbie qustion
  10. Advice on USB Soundcard / USB DAC + Amplifier
  11. 6n2 + fu32 vacuum tube tube headphone amplifier
  12. Headphone amp recommendation required?
  13. Tube Headphone amplifier suggestions 2x(1:40) transformers
  14. Different grounding, different sound quality or what can be the problem?
  15. Radio Shack Digital to Analog Converter
  16. 2SC1815 alternative for Mini Zen
  17. Two-Way Headset Wiring
  18. whats worng with this circut
  19. Phono amp top slot board for O2 amplfier in B3 case
  20. Szekeres VE protection diodes?
  21. Headphone Amp Feels 'Electrified'
  22. Design Issue: Cascaded passive filer stages
  23. Headphone amp between source & amplifier - how to passthrough?
  24. Open Source Headphone Amplifier
  25. OPA2132/4 for headphones
  26. O2 LiPo Daughterboard
  27. Class AB with op-amp input, audible noise
  28. PCB check for a simple amp
  29. Home meade design AMP prob's
  30. Noise - how much is too much?
  31. Massively parallel LME49990 headamp
  32. Building the O2 - A novices build experience
  33. A Through-hole "Wire" Amp
  34. Adding a headphone output to CD PLAYER?
  35. Rod Elliot 113 - Headphone amp TOO MUCH GAIN
  36. Dual O2-Inspired, SMD Headphone Amp
  37. Low impedance phones, Please suggest amp design?
  38. Huge change in audio quality simply by changing the pads on headphones?
  39. what next, help please
  40. DIY isodynamic headphones?
  41. DIY replace jack plug: strange colors
  42. Canjam 2013 ?
  43. Can you disable DAC on O2 ODAC?
  44. Can i connect my sony pulse wireless heaset to a TV ?
  45. Audio controlled voltage mod.
  46. AKG K518
  47. Composite amplifier in class A
  48. A great Fostex T50RP amp?
  49. helmet speakers
  50. Ambisonics, and listening to binaural via speakers
  51. Cheap but linear headamp
  52. Thin Durable Flexible Wire to Fix Headphones
  53. If headphones are out-of-phase, can you hear it?
  54. Oatley K272 DC power options.
  55. A curious Inquiry involving internal headphone amp/powering multiple earbuds?
  56. recommend me a valve headphone amp - Beyer T1 & AKG Q701 etc
  57. HP amp out impedance vs. HP impedance
  58. O2 help with bass boost and 1/4 jack mods
  59. Anyone ever used LM4780 for headphones?
  60. Stax Type 1 headphone, anyone know what these are?
  61. DIY balanced headphone amp?
  62. Simple headphone amp from spare parts
  63. SENNHEISER HD800 Source Impedance
  64. TDA1308 - changing gain resistors
  65. Headphone Amp Selection?
  66. Classic v1 headphone amplifier
  67. RFI problems on diy headphone amp.
  68. power flickering on tube cmoy amp
  69. question about a circuit
  70. hello all is a dac worth buying
  71. Passive bell shaped EQ for headphones
  72. GLASS-SAND CLASS A TUBE MOSFET HYBRID HEADPHONE AMP
  73. HD650 can I fix this?
  74. Headphones Amplifier HIFI
  75. An "O3" - 35% smaller SMD RS O2 headphone amp version
  76. need help with headphones
  77. Moe'stevens O2
  78. Need help - using J A Burgess 45 SE amp for headphones
  79. Akai EIE Pro or Lexicon I-O|22 for AKGQ 701 [Specs inside]
  80. Power switch driver board(Momentary switch) + output relay board(delayed ON/fast OFF)
  81. OpAmps to drive HD650 from AK4399 Vout DAC
  82. Where to place current limit output resistor?
  83. Headphone amp noise. Help!
  84. USB DAC & headphone Amp with 3D Printed Enclosure
  85. DIY amp/DAC with better measurements than O2/ODAC?
  86. Battery powered 4W amp
  87. stuffing cotton balls in headphones?
  88. Measuring headphone FR?
  89. LM1875 based amp by Sijose
  90. A version of an O2 Desktop Amp (ODA)
  91. ESP P113 voltage gain of 1, will it work?
  92. The No Headphone Amp!
  93. Help Needed - Push Pull Transformer replacement
  94. Improving Bass Response On A Popular Hybrid Design
  95. Koss Esp-9 to ESP-9b Conversion... Help needed with grounding scheme
  96. High power headphone amp
  97. New Modular Headphone Amplifier
  98. full range planar headphones using neodynium magnets
  99. JLH Chiarra or Hifisonix Class A buffer?
  100. Sennhesier HD424
  101. 2-channel regular ground, dual mono or "balanced"/bridged?
  102. Jack Plug Wiring Help
  103. New Portable Amplifier Project started
  104. Pimeta V2 or O2?
  105. JLH Class A headphone amp from ETI not WW
  106. Left/Right Channel balancer
  107. Choosing a DC storage/rail cap for cmoy like amp
  108. Feedback resistor size - opamps
  109. Can I add a Potentiometer to these Headphones?
  110. Headphone distribution schematics
  111. Stax upgrade recomendations please.
  112. tube amp designs for low impedance headphones?
  113. headphone buffer/output for usb/dac
  114. Personal EQ & AMP for Hearing loss
  115. Grado RS1 headphones
  116. MOSFET Headphone Amplifier
  117. Lehmann clones
  118. which amplifier kit on ebay?
  119. Koss HV/1LC - specifications
  120. Headphone maximum power
  121. Output device for SE Hybrid Headphone Amp
  122. Output impedance as compensation?
  123. New Headphone Amp kit supplier in OZ
  124. suggestion for a 200$ headamp
  125. Replace Blackbox m10 3-prong jack
  126. Sony MDR-V6 changed?
  127. New portable amplifier
  128. New portable amplifier
  129. Stax SRM-212 repair?
  130. Audiophile Gear vs. ODAC/O2 (DAC’s and Amp’s)
  131. Sennheiser HD650 vs AKG Q701 QJ
  132. Split-supply portable headphone amp / DAC
  133. A47 / Crystal CMoy
  134. Electrostatic Headphones
  135. akg k140 earpads
  136. Which design is better for portable linear amplification?
  137. Midgård, compact, low distortion, high quality, Class A Lateral FET headamp
  138. Copper for Headphone Amp Chassis
  139. The DAO SE all-FET Class-A ZGF Headphone Amplifier
  140. What is this?!
  141. Background noise - tube amp
  142. Am the only one who's not deaf....?
  143. Grado GS1000 died
  144. lme49600 buffering the output of a generic soundcard
  145. LMH6643 amplifier
  146. Balanced input headphone amp
  147. Rigs test
  148. Kevin Gilmore KGSSHV boards
  149. Universal Headphone Amp - fits different headphones
  150. Headphone distribution block (passive)
  151. Calculating audio transformer losses?
  152. O2 headphone amp with 4x 8.4V cells
  153. how to mix sound from notebook and external sound card and get headphones output
  154. Koss HV/1LC foam Ear Pads
  155. Any DIY/Upgrade Components Ideas for Bravo Audio V2 12AU7 HeadAmp?
  156. Class A mosfet headphone amplifier. How does it look?
  157. Headphone Connections
  158. Headphones
  159. my new MING DA MC300-EAR headphone. Would like your suggestions.
  160. Best Sounding AMP for IMOD ( Modded ipod ) LOD
  161. Any point in adding a audio transformer for more power?
  162. Convert Low V Aikido line stage to headphone use?
  163. Balder, OPA2134+BUF634 Headphone Amplifier
  164. A good Headphone Amp for AKG K240DF anybody? It's 88dB and 600ohm, Thank you.
  165. Converting an Amp to Balanced XLR
  166. Calculating output impedance of Morgan-Jones headphone amp?
  167. norrisr
  168. modulation-like distortion of music at low volumes
  169. My E5 Class A hifi headphone amp
  170. Midgard, a low distortion Lateral FET output Headphone Amplifier
  171. can someone look this over?
  172. STAX Earspeaker part
  173. noise cancelation
  174. Best headamp for Hifiman planars?
  175. Headphone Passthrough Techniques
  176. I need Amplifier.
  177. Tone Stack with 2 knobs and switches
  178. Another 6922/6AS7 OTL Project
  179. Can anyone help me, repairing my DACPort
  180. Upgrading ICs in headphone amps
  181. Creating headphone jack from speaker out
  182. resistors in cmoy
  183. Electret Mic -> Headphones
  184. akg 240M ear pads
  185. "Balanced" vs single ended headphone drive
  186. Source for these Aluminum headphone cases/chassis?
  187. How do I Improve bass handling in a headphone amp?
  188. Little help please
  189. Objective2 as preamp (Help Needed)
  190. Best Earbud (not earplug) headphones to buy?
  191. help with caps and resisters
  192. A small, low-voltage, battery operated amplifier
  193. O2 Headphone amp gerber files problem
  194. Audez'e LCD-2 - help needed for a DIY cable build
  195. My Objective 2 having weird issues
  196. Beyerdynamic A1 kit
  197. M-stage Op amp replacement (for the better)
  198. First amp build; need help choosing and understanding amps
  199. Want to build Unusual high powered battery powered headphone amp (and equalizer)
  200. Single Stator Electrostatic Headphone - issues?
  201. Just made o2 amps, now what? :)
  202. Pioneer SE-50 worth saving?
  203. Measuring and Correction of Frequency Response for Head-Phones
  204. MiniDSP for headphone EQ & crosstalk?
  205. Impedance balancing of headphones + pot
  206. TPA6120A2 with balanced crossfeed?
  207. NOOB DIY need some help.
  208. Building the O2 Headphone Amp
  209. Diamond buffer headphone amp- can I parallel outputs?
  210. B-Board Boxer Prototype Build Thread
  211. headphone amps vs headphone inputs?
  212. Amp between Xonar D1 and Audio Technica ATH-M50
  213. Quick CMOY Question
  214. Bias and stability
  215. Help with new DIY amp decision (5th Gen iPod, LOD, and 250ohm DT770 Pro)
  216. Wow daughter asks dad for help
  217. How many different versions of "The Wire" are there?
  218. Headset goes to surgery :)
  219. What is a portable headphone amplifier?
  220. A bit of DIY advice required
  221. $6 headphone amplifier from ebay
  222. Headphone cable wiring
  223. OPA AMP
  224. Single ended DAC + TPA6120, where to put the pot?
  225. Mjølner, another all discrete Lateral FET Headphone Amplifier
  226. Newb Going Down CMOY Blvd Hits Big Roadblock
  227. Matrix M-Stage Amp blew out gasket!
  228. CMoy Ahoy! Help!
  229. a portable headphone amp with bass and treble tone controls
  230. First build, CMOY
  231. Simplistic Class A MOSFET Headphone w Feedback: have I got my values right?
  232. Diy new headphone band.
  233. HA-PRO2
  234. Jecklin Float Model One
  235. β18 Stereo Headphone Amplifier
  236. High end Ortho Amp on a basic Russian Tube DHT SET DIY design
  237. boraomega´s STACATO HeadPhoneAmplifier
  238. Beware of Fake Beats Mixr Headphone
  239. DIY headpone amp with ~300mA output
  240. JDS Labs Charity Raffle - Prizes include 0DAC, 02, c412 and cMoy BB
  241. Balanced OTL headphone amp
  242. ODAC + PGA2320 + The Wire = The ultimate budget headphone system
  243. Modified CMOY amp sounds to low with certain head phones...
  244. Which to buy
  245. I'm designing a TPA6120 based headphone amp, is there anyone can give me some advice
  246. Cmoy BB linear PSU enclosure
  247. Use +12V PC molex connector to power headphone amp?
  248. DIY 7.1 Sorround Headphones ala the Razer Tiamat
  249. Split-supply 3.7v to +/-~7v IC for pocket amp
  250. Any good DIY amps for low impedence/high sensitivity headphones?

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