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  1. OBH-11 passive preamp mod
  2. "The Crocodile"
  3. PCM2407 DAC click & pop issue.
  4. Balanced Headphone amplifier for HiRes Bluray
  5. Shorted Channels w/o apparent effect on SQ
  6. ESL headphones and amp.
  7. Which Amp best suited for Earphone
  8. OUTONE Pseudobridge system
  9. Which amplifier for Sennheiser HD 598?
  10. Headphone Amp IC
  11. HIGH performance HeadPhone amplifier OUTONE
  12. Another take on the Diamond Buffer
  13. First Headphone Amp Build
  14. Another implementation of Class A buffer for headphone
  15. Schematic help for wierd problem.
  16. CMoy with other Chips
  17. HiFi Headphone Amp for Recording Studio
  18. special tool for 3.5mm strain relief?
  19. IEM Amp Design Help
  20. Converting the Bugle2 to a headphone amp?
  21. A High-Quality, High-Power Headphone Amplifier
  22. Stereo intercom for my experimental airplane
  23. [ask] Is there a way to mod a CMOY amp to have more power?
  24. Opa551 getting very hot in inverting configuration
  25. low impedence buffer
  26. A simple 2-Ch mixer, suggestions, ideas?
  27. O2 Amp Build - Resistor Question
  28. How to bypass volume potentiometer Sennheiser PC360
  29. DC protection for headphones
  30. Should replacement headphone cable telescope the shield?
  31. Headphone Attenuator, Or do I need an amp
  32. starting diy with a cmoy
  33. Neodymium Magnets - Strength/Weight
  34. Which Class-A Build?
  35. Headphone Mic Wiring
  36. Portabel Headphone Amplifier
  37. Precission EQ of Headphones
  38. Ribbon Microphones for Noise Canceling
  39. adding 18 watt valve amp on pc
  40. 5x5 Headphone amplifier/Preamplifer
  41. Headphone amp?
  42. Isodynamic Planar Magnetic Headphones
  43. ATH-DN1000USB Audio Technica DNote Digital USB Headphone
  44. Simple SE buffer, any better idea ?
  45. Ribbon Drivers in Headphones
  46. 600 Ohm headphones that are not Beyerdynamic
  47. First time building CMOY - Need some help
  48. specification of headphone
  49. Differences in headphones and speaker amps
  50. Head 'n' HiFi - Walter: O2 Headphone Amp Kit
  51. head amp for AKG K-2xx serie(600 Ohm)
  52. High Performance Class A Current Feeback Headphone Amplifier
  53. Inverting CMOY with inverting DC servo for 5V USB
  54. Output Resistor on Bravo V2
  55. First build, needing a little direction
  56. cmoy tube amp... mic amp?
  57. Headphone insert
  58. Two stage opamp amplifier PCB 5x5cm
  59. Classic-50mW
  60. OPA2134 headphone amplifier or recommend something better
  61. Replacing power MOSFETs in SDS Labs headphone amplifier
  62. Headphone amplifier (Lavardin Follower)
  63. One Ohm Resistor Separating Grounds?
  64. Power handling value of headphone drivers?
  65. Turning stereo signal to two mono signals
  66. Hybrid Headphone Amplifier
  67. problem with my first lme49723 amp
  68. Theoretical Full Range Ribbon Headphones
  69. TPA6120 Resistor Question
  70. Cmoy voltage fluctuation problem
  71. High-voltage hybrid headphone amp
  72. Why such a large input series resistor?
  73. inductor+resistor network for headphone amp output?
  74. My Own Headphone Amp
  75. Diy headphone options for AKG k701's
  76. OPA2134 Input Stage...
  77. OPA2134+LM6172 composite amp ?
  78. dual purpose amp question.
  79. importance of output impedance for headphones?
  80. AKG 601 cable really BI-WIRE?
  81. OP-amp getting hot
  82. Headphone Amplifier project
  83. Modifying the SMSL SAP VI for low impedance headphones
  84. artwork on cans?
  85. My first Desktop HPA
  86. Volume control
  87. Best way to implement a voltage gain stage with opamp?
  88. DIY HEADPHONES
  89. Audeze LCD poor comfort – any mods?
  90. Headphone capsules: OEM stuff
  91. OPA2134/IRF510 Schematic...
  92. Need Headphone Amp Schematic for NJM4556
  93. Headphones for me, speakers for wife
  94. Headphone amp level = line level? (Maybe obvious question)
  95. My first HPA design...comments please!
  96. Transparent & Objective: My Objective 2 build
  97. My O2 Portable Amp
  98. O2 Front Panel
  99. My LM5532 Headphone Amplifier project
  100. CMOY with Common Collector Buffer
  101. CMoy Desktop with Buffers
  102. Objective o2 diy no sound
  103. Cmoy help please!
  104. µCmoy - My take on the portable CMoy amp
  105. My Headphone amp. Very diy...
  106. Opa2134 Max. Power dissipation
  107. 49600 single ended amp; I blew up the output caps!
  108. MultiLoop Amp Output impedance
  109. Need a small amplifier
  110. OPA2134 in parallel
  111. Desktop Cmoy with NJM4556 Buffers
  112. Portable headphone amp
  113. NJM4556 Output Impedance
  114. TPA6120A2 Input Bias Voltage Protection
  115. geek Wave DAP
  116. HPA-1 Class A Headphone Amplifier
  117. Very good Headphone Amplifier
  118. CMOY problem - any ideas welcome
  119. CMOY problem - any ideas welcome
  120. CMOY issues - all ideas welcome
  121. HELP: tuning for AKG601 + MJ mini tube amp
  122. Crosstalk issue with homebrew headphone amps
  123. A composite with LT1210 - another way of doing it
  124. CMoy Opa2134 minimum Gain
  125. Cmoy vs Chipamps
  126. DIY portable USB headphone AMP/DAC- recommended ICs?
  127. My first amp!
  128. Pot before a high pass filter
  129. CMoy Mod for drive speakers
  130. Old School tda2003 Headphone amp
  131. Noobie looking for a cheap heaphones amp
  132. Headphone amp from AN-272 Op Amp Booster Designs
  133. Elektor improved headphone preamp. Is it good quality?
  134. Cmoy with RA input?
  135. GAMECOM Headphone Cable
  136. Stereo crosstalk gets worse with frequency?
  137. Decware ZKIT3 Clipping
  138. WARNING hillyhifi
  139. 49600 Electrostatic Discharge Concerns
  140. So, your Grados are too bright?
  141. o2 flush gain switch?
  142. clip on heat sinks for TO-263
  143. Looking for a closed HP driver
  144. Headphone amp with RCA bypass grounding
  145. About Crossfeed concept
  146. Optimizing a TPA6120a2 layout
  147. Quality 6.35mm Stereo Headphone Socket?
  148. cmoy amp suggestions
  149. simple, high performance amp using DRV134?
  150. General Headphone Amplifier Survey
  151. O2 headamp PM latch PC board to stop O2 low battery buzzing
  152. Headphone system - volume pot placement.
  153. 2 wires for Return Terminal and 1 wire for (+) Terminal in EXPENSIVE Headphone cable
  154. Too simple MOSFET ESL amplifier
  155. summing to mono
  156. Inexpensive O2 faceplates on Ebay
  157. Headphone amp on perfboard: layout critics welcome
  158. *For Sale* objective 2 Failed to launch *For Sale*
  159. Producing Headphones
  160. Need help building a headphone relay
  161. Low cost Stax headphone amplifier
  162. Douglas self_Ground cancelling & 0-impedance ??
  163. 3,5 to RCA cable
  164. RJM Sapphire build thread:
  165. Mistakenly ordered a 100k pot for O2 amp.
  166. Broskie Headphone Amp - frequency response
  167. Brig, any thoughts?
  168. Help with volume independent humming...
  169. Benchmark headphone amp-white paper by John S.
  170. Simplest headphone amp circuit (something like you'd get in a walkman or MP3 player)?
  171. ATTN: Beyerdynamic owners
  172. new opamps break in
  173. 32 Ohm- actual impedance at diff. frequencies?
  174. Gilberd headphone amplifier
  175. Acoustics in closed vs. open design confusing - help needed!
  176. O2 amp troubleshooting - help a newbie!
  177. Headphones for music production
  178. Headphone Data Sheet Table with power, voltage & current
  179. Headphone amp also used as preamp for long cable
  180. ground question
  181. Adventures in Headamp Country
  182. GIBRID TELEFONE AMP.
  183. Grado SR60 and a near field sub
  184. SCHURTER - 4802.2330 - SOCKET, 3.5MM JACK, PCB, 3POLE
  185. Receiver Headphone output - modifications?
  186. Headphone amplifier that runs on 5V?
  187. Headphones that pick up FM transmitted stations?
  188. Components for KA2209 headphone amplifier?
  189. stereo jacks look dangerous!
  190. Minimal headphone circuit.
  191. +/- 8/10V from 5V USB power converter
  192. Help choosing replacement headphones
  193. Bluetooth Headphones - Bluedio's "R+"
  194. Need help understanding current loops...
  195. Little-Bear B1 modding..
  196. Headphone amplifier using SJ2520
  197. Wich Over-Ear Headphones and a Soundcard or DAC/AMP Combo?
  198. How to DIY headphones?
  199. 19J6 Millett amp
  200. Valuable dual opa for headphones amp
  201. Need travel headphones < 300 dollars
  202. Objective + ODAC modifications
  203. Help my cmoy is popping caps
  204. SOHA II amp tripping
  205. cisco power supply, grounding and the Millett starving student
  206. cisco power supply, grounding and the Millett starving student
  207. Help Summing Two Headphone Outputs
  208. question re crossfeed for low imped phones
  209. 6DJ8 headphone amp
  210. THD vs bias voltage for ESL headphones
  211. Just for fun
  212. Creek OBH-21 SE problem
  213. Current source in diamond buffer
  214. Where do I start? (re: need a DIY amp project)
  215. 6N OCC 24awg single strand for headphones ?
  216. From amp w/ "bare wire" output to headphones...
  217. My new headphone amp
  218. Why are external amplifiers superior?
  219. Headphones and Hearing aids
  220. Reacheargeable CMoy Amp??
  221. Testing headphones
  222. Discrete op amp headphone amplifier module, based on Marantz
  223. Koss ESP9 Headphones Low Volume Fixed!
  224. Please help with DIY headphone amp.
  225. Huginn, High performance, Class A, Lateral FET headphone amplifier
  226. MAT12 / MAT14 based headphone amp
  227. DC servo for Sijosae Buffer
  228. connect two inverting op amps together
  229. Yet Another Cmoy - PCB layout with Eagle and making PCB
  230. How to prevent unwanted volume adjustments on volume knob of a portable amp
  231. Project Ember ?
  232. O2 and power questions...
  233. Beyerdynamic A1 clone gold, opamp rolling
  234. Is there a better way to implement buf634 other than place in a a loop?
  235. An early look at my new HPA design
  236. O2 XLR, St/Mono swtich, etc Mod. ?'s
  237. A question regarding bass boost and output buffers
  238. O2 headamp output booster PCB
  239. cMoybb op amp rolling with AD797BRZ
  240. Millett Hybrid Starving Student (12AU7)
  241. Good capacitors for cmoy
  242. mysterious headphones
  243. New 4 layer LME49610 Headphone Amplifier D1
  244. Simple Headphone's Amp for beginner
  245. upgrading x-can V1? anyone?
  246. Headphone Amps DIY for beginners
  247. some question about headphone amp (possibly the o2)
  248. Unknown Stax Headphones for SRD-7
  249. Moskido Hybrid headphone amplifier! Help needed
  250. Lowest capacitance hum-rejecting 4-wire headphone cable configuration

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