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  1. Anyone ID these headphones?
  2. My first headamp project
  3. Xfeed network
  4. Amp suggestion
  5. single-ended (hope:) ) headphone amplifier with minimal NFB and low THD
  6. Cavalli's EHHA r1 kit question
  7. Headphone amp series current limiter resistor
  8. HD600 recabling
  9. Tube amp with usb
  10. A little compilation Erwin's Amp
  11. Help with faulty Pioneer Headphones please?
  12. Sound Magic Hp200 Premium Audiophile headphones!
  13. Using sApii Pro TPA6120a2 at lower voltage?
  14. Grasshopper
  15. My mobile Headphone AMP w. OPA134 & BUF634
  16. Trying to convert a pre amp to an headphone amp I could use some help..
  17. what's up with Headwize website ?
  18. Digital potentiometer. Distortion and line level
  19. MOSFET amp instability
  20. Is the O2/ODAC combo right for me? Are there better alternatives for me?
  21. limited soundstage with headphones
  22. headset to microphone
  23. Does anyone know how to use the digital potentiometer DS1882
  24. High Fidelity Ear Protection: "Protect your ears from bad sounding HiFi systems!"
  25. Need Help With DIY Switch Box
  26. Looking for a simple high quality amp to drive 600 ohm load
  27. Load output resistors in parallel opamps amplifier
  28. Bone conduction headphones
  29. headphone cable choice
  30. Headphones on TA2024 Single powered D Class amp
  31. Help with volume control on a headphone amplifier?
  32. SIT Headphone amplifier (VFET S.F. buffer)
  33. Headphone impedance matching with tube head amp
  34. My O2 & Subbu DAC build
  35. Monster headphone rebuild - need help please
  36. Amplifier for akg k340 (400ohms)
  37. Single NE5532 driving 38ohms?
  38. class A Buffer
  39. Headphones invention challenge with Harman Audio
  40. DIY 12AU7 Hybrid Amp voltage variances
  41. O2 amp only playing sound through one channel
  42. Tone control
  43. Another site noob needing help with his O2!!
  44. Portable LME49720 Headphone Amp
  45. schematic request for tpa6120/ne5534 ebay amp
  46. Cable Dongle ? What is it?
  47. Are these ICs legitimate?
  48. single NE5532P headphone amp ?!
  49. How does op amp introduce power supply noise to output?
  50. CFA Headphones amplifier
  51. Which resistor value for Gain
  52. lme49600 pcb for discrete jensen 918
  53. Headphone Buffer With Power Supply
  54. How to calculate Zobel/Boucherot Circuit
  55. MSA 30X Sound Amplifier
  56. Headphone Power Buffer
  57. 100Hz Hum in Lehmann Linear clone
  58. What you guys think of this Headphone amp?
  59. Personal Monitor System
  60. OBH-11 passive preamp mod
  61. "The Crocodile"
  62. PCM2407 DAC click & pop issue.
  63. Balanced Headphone amplifier for HiRes Bluray
  64. Shorted Channels w/o apparent effect on SQ
  65. ESL headphones and amp.
  66. Which Amp best suited for Earphone
  67. OUTONE Pseudobridge system
  68. Which amplifier for Sennheiser HD 598?
  69. Headphone Amp IC
  70. HIGH performance HeadPhone amplifier OUTONE
  71. Another take on the Diamond Buffer
  72. First Headphone Amp Build
  73. Another implementation of Class A buffer for headphone
  74. Schematic help for wierd problem.
  75. CMoy with other Chips
  76. HiFi Headphone Amp for Recording Studio
  77. special tool for 3.5mm strain relief?
  78. IEM Amp Design Help
  79. Converting the Bugle2 to a headphone amp?
  80. A High-Quality, High-Power Headphone Amplifier
  81. Stereo intercom for my experimental airplane
  82. [ask] Is there a way to mod a CMOY amp to have more power?
  83. Opa551 getting very hot in inverting configuration
  84. low impedence buffer
  85. A simple 2-Ch mixer, suggestions, ideas?
  86. O2 Amp Build - Resistor Question
  87. How to bypass volume potentiometer Sennheiser PC360
  88. DC protection for headphones
  89. Should replacement headphone cable telescope the shield?
  90. Headphone Attenuator, Or do I need an amp
  91. starting diy with a cmoy
  92. Neodymium Magnets - Strength/Weight
  93. Which Class-A Build?
  94. Headphone Mic Wiring
  95. Portabel Headphone Amplifier
  96. Precission EQ of Headphones
  97. Ribbon Microphones for Noise Canceling
  98. adding 18 watt valve amp on pc
  99. 5x5 Headphone amplifier/Preamplifer
  100. Headphone amp?
  101. Isodynamic Planar Magnetic Headphones
  102. ATH-DN1000USB Audio Technica DNote Digital USB Headphone
  103. Simple SE buffer, any better idea ?
  104. Ribbon Drivers in Headphones
  105. 600 Ohm headphones that are not Beyerdynamic
  106. First time building CMOY - Need some help
  107. specification of headphone
  108. Differences in headphones and speaker amps
  109. Head 'n' HiFi - Walter: O2 Headphone Amp Kit
  110. head amp for AKG K-2xx serie(600 Ohm)
  111. High Performance Class A Current Feeback Headphone Amplifier
  112. Inverting CMOY with inverting DC servo for 5V USB
  113. Output Resistor on Bravo V2
  114. First build, needing a little direction
  115. cmoy tube amp... mic amp?
  116. Headphone insert
  117. Two stage opamp amplifier PCB 5x5cm
  118. Classic-50mW
  119. OPA2134 headphone amplifier or recommend something better
  120. Replacing power MOSFETs in SDS Labs headphone amplifier
  121. Headphone amplifier (Lavardin Follower)
  122. One Ohm Resistor Separating Grounds?
  123. Power handling value of headphone drivers?
  124. Turning stereo signal to two mono signals
  125. Hybrid Headphone Amplifier
  126. problem with my first lme49723 amp
  127. Theoretical Full Range Ribbon Headphones
  128. TPA6120 Resistor Question
  129. Cmoy voltage fluctuation problem
  130. High-voltage hybrid headphone amp
  131. Why such a large input series resistor?
  132. inductor+resistor network for headphone amp output?
  133. My Own Headphone Amp
  134. Diy headphone options for AKG k701's
  135. OPA2134 Input Stage...
  136. OPA2134+LM6172 composite amp ?
  137. dual purpose amp question.
  138. importance of output impedance for headphones?
  139. AKG 601 cable really BI-WIRE?
  140. OP-amp getting hot
  141. Headphone Amplifier project
  142. Modifying the SMSL SAP VI for low impedance headphones
  143. artwork on cans?
  144. My first Desktop HPA
  145. Volume control
  146. Best way to implement a voltage gain stage with opamp?
  147. DIY HEADPHONES
  148. Audeze LCD poor comfort – any mods?
  149. Headphone capsules: OEM stuff
  150. OPA2134/IRF510 Schematic...
  151. Need Headphone Amp Schematic for NJM4556
  152. Headphones for me, speakers for wife
  153. Headphone amp level = line level? (Maybe obvious question)
  154. My first HPA design...comments please!
  155. Transparent & Objective: My Objective 2 build
  156. My O2 Portable Amp
  157. O2 Front Panel
  158. My LM5532 Headphone Amplifier project
  159. CMOY with Common Collector Buffer
  160. CMoy Desktop with Buffers
  161. Objective o2 diy no sound
  162. Cmoy help please!
  163. µCmoy - My take on the portable CMoy amp
  164. My Headphone amp. Very diy...
  165. Opa2134 Max. Power dissipation
  166. 49600 single ended amp; I blew up the output caps!
  167. MultiLoop Amp Output impedance
  168. Need a small amplifier
  169. OPA2134 in parallel
  170. Desktop Cmoy with NJM4556 Buffers
  171. Portable headphone amp
  172. NJM4556 Output Impedance
  173. TPA6120A2 Input Bias Voltage Protection
  174. geek Wave DAP
  175. HPA-1 Class A Headphone Amplifier
  176. Very good Headphone Amplifier
  177. CMOY problem - any ideas welcome
  178. CMOY problem - any ideas welcome
  179. CMOY issues - all ideas welcome
  180. HELP: tuning for AKG601 + MJ mini tube amp
  181. Crosstalk issue with homebrew headphone amps
  182. A composite with LT1210 - another way of doing it
  183. CMoy Opa2134 minimum Gain
  184. Cmoy vs Chipamps
  185. DIY portable USB headphone AMP/DAC- recommended ICs?
  186. My first amp!
  187. Pot before a high pass filter
  188. CMoy Mod for drive speakers
  189. Old School tda2003 Headphone amp
  190. Noobie looking for a cheap heaphones amp
  191. Headphone amp from AN-272 Op Amp Booster Designs
  192. Elektor improved headphone preamp. Is it good quality?
  193. Cmoy with RA input?
  194. GAMECOM Headphone Cable
  195. Stereo crosstalk gets worse with frequency?
  196. Decware ZKIT3 Clipping
  197. WARNING hillyhifi
  198. 49600 Electrostatic Discharge Concerns
  199. So, your Grados are too bright?
  200. o2 flush gain switch?
  201. clip on heat sinks for TO-263
  202. Looking for a closed HP driver
  203. Headphone amp with RCA bypass grounding
  204. About Crossfeed concept
  205. Optimizing a TPA6120a2 layout
  206. Quality 6.35mm Stereo Headphone Socket?
  207. cmoy amp suggestions
  208. simple, high performance amp using DRV134?
  209. General Headphone Amplifier Survey
  210. O2 headamp PM latch PC board to stop O2 low battery buzzing
  211. Headphone system - volume pot placement.
  212. 2 wires for Return Terminal and 1 wire for (+) Terminal in EXPENSIVE Headphone cable
  213. Too simple MOSFET ESL amplifier
  214. summing to mono
  215. Inexpensive O2 faceplates on Ebay
  216. Headphone amp on perfboard: layout critics welcome
  217. *For Sale* objective 2 Failed to launch *For Sale*
  218. Producing Headphones
  219. Need help building a headphone relay
  220. Low cost Stax headphone amplifier
  221. Douglas self_Ground cancelling & 0-impedance ??
  222. 3,5 to RCA cable
  223. RJM Sapphire build thread:
  224. Mistakenly ordered a 100k pot for O2 amp.
  225. Broskie Headphone Amp - frequency response
  226. Brig, any thoughts?
  227. Help with volume independent humming...
  228. Benchmark headphone amp-white paper by John S.
  229. Simplest headphone amp circuit (something like you'd get in a walkman or MP3 player)?
  230. ATTN: Beyerdynamic owners
  231. new opamps break in
  232. 32 Ohm- actual impedance at diff. frequencies?
  233. Gilberd headphone amplifier
  234. Acoustics in closed vs. open design confusing - help needed!
  235. O2 amp troubleshooting - help a newbie!
  236. Headphones for music production
  237. Headphone Data Sheet Table with power, voltage & current
  238. Headphone amp also used as preamp for long cable
  239. ground question
  240. Adventures in Headamp Country
  241. GIBRID TELEFONE AMP.
  242. Grado SR60 and a near field sub
  243. SCHURTER - 4802.2330 - SOCKET, 3.5MM JACK, PCB, 3POLE
  244. Receiver Headphone output - modifications?
  245. Headphone amplifier that runs on 5V?
  246. Headphones that pick up FM transmitted stations?
  247. Components for KA2209 headphone amplifier?
  248. stereo jacks look dangerous!
  249. Minimal headphone circuit.
  250. +/- 8/10V from 5V USB power converter

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