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

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