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

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