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  1. First Headphone Amp Build
  2. Another implementation of Class A buffer for headphone
  3. Schematic help for wierd problem.
  4. CMoy with other Chips
  5. HiFi Headphone Amp for Recording Studio
  6. special tool for 3.5mm strain relief?
  7. IEM Amp Design Help
  8. Converting the Bugle2 to a headphone amp?
  9. A High-Quality, High-Power Headphone Amplifier
  10. Stereo intercom for my experimental airplane
  11. [ask] Is there a way to mod a CMOY amp to have more power?
  12. Opa551 getting very hot in inverting configuration
  13. low impedence buffer
  14. A simple 2-Ch mixer, suggestions, ideas?
  15. O2 Amp Build - Resistor Question
  16. How to bypass volume potentiometer Sennheiser PC360
  17. DC protection for headphones
  18. Should replacement headphone cable telescope the shield?
  19. Headphone Attenuator, Or do I need an amp
  20. starting diy with a cmoy
  21. Neodymium Magnets - Strength/Weight
  22. Which Class-A Build?
  23. Headphone Mic Wiring
  24. Portabel Headphone Amplifier
  25. Precission EQ of Headphones
  26. Ribbon Microphones for Noise Canceling
  27. adding 18 watt valve amp on pc
  28. 5x5 Headphone amplifier/Preamplifer
  29. Headphone amp?
  30. Isodynamic Planar Magnetic Headphones
  31. ATH-DN1000USB Audio Technica DNote Digital USB Headphone
  32. Simple SE buffer, any better idea ?
  33. Ribbon Drivers in Headphones
  34. 600 Ohm headphones that are not Beyerdynamic
  35. First time building CMOY - Need some help
  36. specification of headphone
  37. Differences in headphones and speaker amps
  38. Head 'n' HiFi - Walter: O2 Headphone Amp Kit
  39. head amp for AKG K-2xx serie(600 Ohm)
  40. High Performance Class A Current Feeback Headphone Amplifier
  41. Inverting CMOY with inverting DC servo for 5V USB
  42. Output Resistor on Bravo V2
  43. First build, needing a little direction
  44. cmoy tube amp... mic amp?
  45. Headphone insert
  46. Two stage opamp amplifier PCB 5x5cm
  47. Classic-50mW
  48. OPA2134 headphone amplifier or recommend something better
  49. Replacing power MOSFETs in SDS Labs headphone amplifier
  50. Headphone amplifier (Lavardin Follower)
  51. One Ohm Resistor Separating Grounds?
  52. Power handling value of headphone drivers?
  53. Turning stereo signal to two mono signals
  54. Hybrid Headphone Amplifier
  55. problem with my first lme49723 amp
  56. Theoretical Full Range Ribbon Headphones
  57. TPA6120 Resistor Question
  58. Cmoy voltage fluctuation problem
  59. High-voltage hybrid headphone amp
  60. Why such a large input series resistor?
  61. inductor+resistor network for headphone amp output?
  62. My Own Headphone Amp
  63. Diy headphone options for AKG k701's
  64. OPA2134 Input Stage...
  65. OPA2134+LM6172 composite amp ?
  66. dual purpose amp question.
  67. importance of output impedance for headphones?
  68. AKG 601 cable really BI-WIRE?
  69. OP-amp getting hot
  70. Headphone Amplifier project
  71. Modifying the SMSL SAP VI for low impedance headphones
  72. artwork on cans?
  73. My first Desktop HPA
  74. Volume control
  75. Best way to implement a voltage gain stage with opamp?
  76. DIY HEADPHONES
  77. Audeze LCD poor comfort – any mods?
  78. Headphone capsules: OEM stuff
  79. OPA2134/IRF510 Schematic...
  80. Need Headphone Amp Schematic for NJM4556
  81. Headphones for me, speakers for wife
  82. Headphone amp level = line level? (Maybe obvious question)
  83. My first HPA design...comments please!
  84. Transparent & Objective: My Objective 2 build
  85. My O2 Portable Amp
  86. O2 Front Panel
  87. My LM5532 Headphone Amplifier project
  88. CMOY with Common Collector Buffer
  89. CMoy Desktop with Buffers
  90. Objective o2 diy no sound
  91. Cmoy help please!
  92. µCmoy - My take on the portable CMoy amp
  93. My Headphone amp. Very diy...
  94. Opa2134 Max. Power dissipation
  95. 49600 single ended amp; I blew up the output caps!
  96. MultiLoop Amp Output impedance
  97. Need a small amplifier
  98. OPA2134 in parallel
  99. Desktop Cmoy with NJM4556 Buffers
  100. Portable headphone amp
  101. NJM4556 Output Impedance
  102. TPA6120A2 Input Bias Voltage Protection
  103. geek Wave DAP
  104. HPA-1 Class A Headphone Amplifier
  105. Very good Headphone Amplifier
  106. CMOY problem - any ideas welcome
  107. CMOY problem - any ideas welcome
  108. CMOY issues - all ideas welcome
  109. HELP: tuning for AKG601 + MJ mini tube amp
  110. Crosstalk issue with homebrew headphone amps
  111. A composite with LT1210 - another way of doing it
  112. CMoy Opa2134 minimum Gain
  113. Cmoy vs Chipamps
  114. DIY portable USB headphone AMP/DAC- recommended ICs?
  115. My first amp!
  116. Pot before a high pass filter
  117. CMoy Mod for drive speakers
  118. Old School tda2003 Headphone amp
  119. Noobie looking for a cheap heaphones amp
  120. Headphone amp from AN-272 Op Amp Booster Designs
  121. Elektor improved headphone preamp. Is it good quality?
  122. Cmoy with RA input?
  123. GAMECOM Headphone Cable
  124. Stereo crosstalk gets worse with frequency?
  125. Decware ZKIT3 Clipping
  126. WARNING hillyhifi
  127. 49600 Electrostatic Discharge Concerns
  128. So, your Grados are too bright?
  129. o2 flush gain switch?
  130. clip on heat sinks for TO-263
  131. Looking for a closed HP driver
  132. Headphone amp with RCA bypass grounding
  133. About Crossfeed concept
  134. Optimizing a TPA6120a2 layout
  135. Quality 6.35mm Stereo Headphone Socket?
  136. cmoy amp suggestions
  137. simple, high performance amp using DRV134?
  138. General Headphone Amplifier Survey
  139. O2 headamp PM latch PC board to stop O2 low battery buzzing
  140. Headphone system - volume pot placement.
  141. 2 wires for Return Terminal and 1 wire for (+) Terminal in EXPENSIVE Headphone cable
  142. Too simple MOSFET ESL amplifier
  143. summing to mono
  144. Inexpensive O2 faceplates on Ebay
  145. Headphone amp on perfboard: layout critics welcome
  146. *For Sale* objective 2 Failed to launch *For Sale*
  147. Producing Headphones
  148. Need help building a headphone relay
  149. Low cost Stax headphone amplifier
  150. Douglas self_Ground cancelling & 0-impedance ??
  151. 3,5 to RCA cable
  152. RJM Sapphire build thread:
  153. Mistakenly ordered a 100k pot for O2 amp.
  154. Broskie Headphone Amp - frequency response
  155. Brig, any thoughts?
  156. Help with volume independent humming...
  157. Benchmark headphone amp-white paper by John S.
  158. Simplest headphone amp circuit (something like you'd get in a walkman or MP3 player)?
  159. ATTN: Beyerdynamic owners
  160. new opamps break in
  161. 32 Ohm- actual impedance at diff. frequencies?
  162. Gilberd headphone amplifier
  163. Acoustics in closed vs. open design confusing - help needed!
  164. O2 amp troubleshooting - help a newbie!
  165. Headphones for music production
  166. Headphone Data Sheet Table with power, voltage & current
  167. Headphone amp also used as preamp for long cable
  168. ground question
  169. Adventures in Headamp Country
  170. GIBRID TELEFONE AMP.
  171. Grado SR60 and a near field sub
  172. SCHURTER - 4802.2330 - SOCKET, 3.5MM JACK, PCB, 3POLE
  173. Receiver Headphone output - modifications?
  174. Headphone amplifier that runs on 5V?
  175. Headphones that pick up FM transmitted stations?
  176. Components for KA2209 headphone amplifier?
  177. stereo jacks look dangerous!
  178. Minimal headphone circuit.
  179. +/- 8/10V from 5V USB power converter
  180. Help choosing replacement headphones
  181. Bluetooth Headphones - Bluedio's "R+"
  182. Need help understanding current loops...
  183. Little-Bear B1 modding..
  184. Headphone amplifier using SJ2520
  185. Wich Over-Ear Headphones and a Soundcard or DAC/AMP Combo?
  186. How to DIY headphones?
  187. 19J6 Millett amp
  188. Valuable dual opa for headphones amp
  189. Need travel headphones < 300 dollars
  190. Objective + ODAC modifications
  191. Help my cmoy is popping caps
  192. SOHA II amp tripping
  193. cisco power supply, grounding and the Millett starving student
  194. cisco power supply, grounding and the Millett starving student
  195. Help Summing Two Headphone Outputs
  196. question re crossfeed for low imped phones
  197. 6DJ8 headphone amp
  198. THD vs bias voltage for ESL headphones
  199. Just for fun
  200. Creek OBH-21 SE problem
  201. Current source in diamond buffer
  202. Where do I start? (re: need a DIY amp project)
  203. 6N OCC 24awg single strand for headphones ?
  204. From amp w/ "bare wire" output to headphones...
  205. My new headphone amp
  206. Why are external amplifiers superior?
  207. Headphones and Hearing aids
  208. Reacheargeable CMoy Amp??
  209. Testing headphones
  210. Discrete op amp headphone amplifier module, based on Marantz
  211. Koss ESP9 Headphones Low Volume Fixed!
  212. Please help with DIY headphone amp.
  213. Huginn, High performance, Class A, Lateral FET headphone amplifier
  214. MAT12 / MAT14 based headphone amp
  215. DC servo for Sijosae Buffer
  216. connect two inverting op amps together
  217. Yet Another Cmoy - PCB layout with Eagle and making PCB
  218. How to prevent unwanted volume adjustments on volume knob of a portable amp
  219. Project Ember ?
  220. O2 and power questions...
  221. Beyerdynamic A1 clone gold, opamp rolling
  222. Is there a better way to implement buf634 other than place in a a loop?
  223. An early look at my new HPA design
  224. O2 XLR, St/Mono swtich, etc Mod. ?'s
  225. A question regarding bass boost and output buffers
  226. O2 headamp output booster PCB
  227. cMoybb op amp rolling with AD797BRZ
  228. Millett Hybrid Starving Student (12AU7)
  229. Good capacitors for cmoy
  230. mysterious headphones
  231. New 4 layer LME49610 Headphone Amplifier D1
  232. Simple Headphone's Amp for beginner
  233. upgrading x-can V1? anyone?
  234. Headphone Amps DIY for beginners
  235. some question about headphone amp (possibly the o2)
  236. Unknown Stax Headphones for SRD-7
  237. Moskido Hybrid headphone amplifier! Help needed
  238. Lowest capacitance hum-rejecting 4-wire headphone cable configuration
  239. Best amp possible for the hd-650
  240. Looking for a Headphone Amplifier
  241. Shure Earphones SE846
  242. Headphone equalization hardware and software
  243. VSSA FOR HEADPHONE
  244. pcb layout for grado ra1 ?
  245. grado ra1 clone
  246. Szekeres vs. PRR-SOL amplifier
  247. Optimal grounding
  248. 4 channel stereo mixer
  249. New PC setup.
  250. Class A Heaphone Amp

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