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  1. DC protection for headphones
  2. Should replacement headphone cable telescope the shield?
  3. Headphone Attenuator, Or do I need an amp
  4. starting diy with a cmoy
  5. Neodymium Magnets - Strength/Weight
  6. Which Class-A Build?
  7. Headphone Mic Wiring
  8. Portabel Headphone Amplifier
  9. Precission EQ of Headphones
  10. Ribbon Microphones for Noise Canceling
  11. adding 18 watt valve amp on pc
  12. 5x5 Headphone amplifier/Preamplifer
  13. Headphone amp?
  14. Isodynamic Planar Magnetic Headphones
  15. ATH-DN1000USB Audio Technica DNote Digital USB Headphone
  16. Simple SE buffer, any better idea ?
  17. Ribbon Drivers in Headphones
  18. 600 Ohm headphones that are not Beyerdynamic
  19. First time building CMOY - Need some help
  20. specification of headphone
  21. Differences in headphones and speaker amps
  22. Head 'n' HiFi - Walter: O2 Headphone Amp Kit
  23. head amp for AKG K-2xx serie(600 Ohm)
  24. High Performance Class A Current Feeback Headphone Amplifier
  25. Inverting CMOY with inverting DC servo for 5V USB
  26. Output Resistor on Bravo V2
  27. First build, needing a little direction
  28. cmoy tube amp... mic amp?
  29. Headphone insert
  30. Two stage opamp amplifier PCB 5x5cm
  31. Classic-50mW
  32. OPA2134 headphone amplifier or recommend something better
  33. Replacing power MOSFETs in SDS Labs headphone amplifier
  34. Headphone amplifier (Lavardin Follower)
  35. One Ohm Resistor Separating Grounds?
  36. Power handling value of headphone drivers?
  37. Turning stereo signal to two mono signals
  38. Hybrid Headphone Amplifier
  39. problem with my first lme49723 amp
  40. Theoretical Full Range Ribbon Headphones
  41. TPA6120 Resistor Question
  42. Cmoy voltage fluctuation problem
  43. High-voltage hybrid headphone amp
  44. Why such a large input series resistor?
  45. inductor+resistor network for headphone amp output?
  46. My Own Headphone Amp
  47. Diy headphone options for AKG k701's
  48. OPA2134 Input Stage...
  49. OPA2134+LM6172 composite amp ?
  50. dual purpose amp question.
  51. importance of output impedance for headphones?
  52. AKG 601 cable really BI-WIRE?
  53. OP-amp getting hot
  54. Headphone Amplifier project
  55. Modifying the SMSL SAP VI for low impedance headphones
  56. artwork on cans?
  57. My first Desktop HPA
  58. Volume control
  59. Best way to implement a voltage gain stage with opamp?
  60. DIY HEADPHONES
  61. Audeze LCD poor comfort – any mods?
  62. Headphone capsules: OEM stuff
  63. OPA2134/IRF510 Schematic...
  64. Need Headphone Amp Schematic for NJM4556
  65. Headphones for me, speakers for wife
  66. Headphone amp level = line level? (Maybe obvious question)
  67. My first HPA design...comments please!
  68. Transparent & Objective: My Objective 2 build
  69. My O2 Portable Amp
  70. O2 Front Panel
  71. My LM5532 Headphone Amplifier project
  72. CMOY with Common Collector Buffer
  73. CMoy Desktop with Buffers
  74. Objective o2 diy no sound
  75. Cmoy help please!
  76. µCmoy - My take on the portable CMoy amp
  77. My Headphone amp. Very diy...
  78. Opa2134 Max. Power dissipation
  79. 49600 single ended amp; I blew up the output caps!
  80. MultiLoop Amp Output impedance
  81. Need a small amplifier
  82. OPA2134 in parallel
  83. Desktop Cmoy with NJM4556 Buffers
  84. Portable headphone amp
  85. NJM4556 Output Impedance
  86. TPA6120A2 Input Bias Voltage Protection
  87. geek Wave DAP
  88. HPA-1 Class A Headphone Amplifier
  89. Very good Headphone Amplifier
  90. CMOY problem - any ideas welcome
  91. CMOY problem - any ideas welcome
  92. CMOY issues - all ideas welcome
  93. HELP: tuning for AKG601 + MJ mini tube amp
  94. Crosstalk issue with homebrew headphone amps
  95. A composite with LT1210 - another way of doing it
  96. CMoy Opa2134 minimum Gain
  97. Cmoy vs Chipamps
  98. DIY portable USB headphone AMP/DAC- recommended ICs?
  99. My first amp!
  100. Pot before a high pass filter
  101. CMoy Mod for drive speakers
  102. Old School tda2003 Headphone amp
  103. Noobie looking for a cheap heaphones amp
  104. Headphone amp from AN-272 Op Amp Booster Designs
  105. Elektor improved headphone preamp. Is it good quality?
  106. Cmoy with RA input?
  107. GAMECOM Headphone Cable
  108. Stereo crosstalk gets worse with frequency?
  109. Decware ZKIT3 Clipping
  110. WARNING hillyhifi
  111. 49600 Electrostatic Discharge Concerns
  112. So, your Grados are too bright?
  113. o2 flush gain switch?
  114. clip on heat sinks for TO-263
  115. Looking for a closed HP driver
  116. Headphone amp with RCA bypass grounding
  117. About Crossfeed concept
  118. Optimizing a TPA6120a2 layout
  119. Quality 6.35mm Stereo Headphone Socket?
  120. cmoy amp suggestions
  121. simple, high performance amp using DRV134?
  122. General Headphone Amplifier Survey
  123. O2 headamp PM latch PC board to stop O2 low battery buzzing
  124. Headphone system - volume pot placement.
  125. 2 wires for Return Terminal and 1 wire for (+) Terminal in EXPENSIVE Headphone cable
  126. Too simple MOSFET ESL amplifier
  127. summing to mono
  128. Inexpensive O2 faceplates on Ebay
  129. Headphone amp on perfboard: layout critics welcome
  130. *For Sale* objective 2 Failed to launch *For Sale*
  131. Producing Headphones
  132. Need help building a headphone relay
  133. Low cost Stax headphone amplifier
  134. Douglas self_Ground cancelling & 0-impedance ??
  135. 3,5 to RCA cable
  136. RJM Sapphire build thread:
  137. Mistakenly ordered a 100k pot for O2 amp.
  138. Broskie Headphone Amp - frequency response
  139. Brig, any thoughts?
  140. Help with volume independent humming...
  141. Benchmark headphone amp-white paper by John S.
  142. Simplest headphone amp circuit (something like you'd get in a walkman or MP3 player)?
  143. ATTN: Beyerdynamic owners
  144. new opamps break in
  145. 32 Ohm- actual impedance at diff. frequencies?
  146. Gilberd headphone amplifier
  147. Acoustics in closed vs. open design confusing - help needed!
  148. O2 amp troubleshooting - help a newbie!
  149. Headphones for music production
  150. Headphone Data Sheet Table with power, voltage & current
  151. Headphone amp also used as preamp for long cable
  152. ground question
  153. Adventures in Headamp Country
  154. GIBRID TELEFONE AMP.
  155. Grado SR60 and a near field sub
  156. SCHURTER - 4802.2330 - SOCKET, 3.5MM JACK, PCB, 3POLE
  157. Receiver Headphone output - modifications?
  158. Headphone amplifier that runs on 5V?
  159. Headphones that pick up FM transmitted stations?
  160. Components for KA2209 headphone amplifier?
  161. stereo jacks look dangerous!
  162. Minimal headphone circuit.
  163. +/- 8/10V from 5V USB power converter
  164. Help choosing replacement headphones
  165. Bluetooth Headphones - Bluedio's "R+"
  166. Need help understanding current loops...
  167. Little-Bear B1 modding..
  168. Headphone amplifier using SJ2520
  169. Wich Over-Ear Headphones and a Soundcard or DAC/AMP Combo?
  170. How to DIY headphones?
  171. 19J6 Millett amp
  172. Valuable dual opa for headphones amp
  173. Need travel headphones < 300 dollars
  174. Objective + ODAC modifications
  175. Help my cmoy is popping caps
  176. SOHA II amp tripping
  177. cisco power supply, grounding and the Millett starving student
  178. cisco power supply, grounding and the Millett starving student
  179. Help Summing Two Headphone Outputs
  180. question re crossfeed for low imped phones
  181. 6DJ8 headphone amp
  182. THD vs bias voltage for ESL headphones
  183. Just for fun
  184. Creek OBH-21 SE problem
  185. Current source in diamond buffer
  186. Where do I start? (re: need a DIY amp project)
  187. 6N OCC 24awg single strand for headphones ?
  188. From amp w/ "bare wire" output to headphones...
  189. My new headphone amp
  190. Why are external amplifiers superior?
  191. Headphones and Hearing aids
  192. Reacheargeable CMoy Amp??
  193. Testing headphones
  194. Discrete op amp headphone amplifier module, based on Marantz
  195. Koss ESP9 Headphones Low Volume Fixed!
  196. Please help with DIY headphone amp.
  197. Huginn, High performance, Class A, Lateral FET headphone amplifier
  198. MAT12 / MAT14 based headphone amp
  199. DC servo for Sijosae Buffer
  200. connect two inverting op amps together
  201. Yet Another Cmoy - PCB layout with Eagle and making PCB
  202. How to prevent unwanted volume adjustments on volume knob of a portable amp
  203. Project Ember ?
  204. O2 and power questions...
  205. Beyerdynamic A1 clone gold, opamp rolling
  206. Is there a better way to implement buf634 other than place in a a loop?
  207. An early look at my new HPA design
  208. O2 XLR, St/Mono swtich, etc Mod. ?'s
  209. A question regarding bass boost and output buffers
  210. O2 headamp output booster PCB
  211. cMoybb op amp rolling with AD797BRZ
  212. Millett Hybrid Starving Student (12AU7)
  213. Good capacitors for cmoy
  214. mysterious headphones
  215. New 4 layer LME49610 Headphone Amplifier D1
  216. Simple Headphone's Amp for beginner
  217. upgrading x-can V1? anyone?
  218. Headphone Amps DIY for beginners
  219. some question about headphone amp (possibly the o2)
  220. Unknown Stax Headphones for SRD-7
  221. Moskido Hybrid headphone amplifier! Help needed
  222. Lowest capacitance hum-rejecting 4-wire headphone cable configuration
  223. Best amp possible for the hd-650
  224. Looking for a Headphone Amplifier
  225. Shure Earphones SE846
  226. Headphone equalization hardware and software
  227. VSSA FOR HEADPHONE
  228. pcb layout for grado ra1 ?
  229. grado ra1 clone
  230. Szekeres vs. PRR-SOL amplifier
  231. Optimal grounding
  232. 4 channel stereo mixer
  233. New PC setup.
  234. Class A Heaphone Amp
  235. DIY Headphone Tap + Passive Mixer
  236. Beats by Dr Dre headphones or alternative models/brands?
  237. In line sound limiter for headphones
  238. Adjustable Ear phone volume limiter
  239. MOSFET follower to my phone
  240. Crazy CMOY board
  241. starving student vs jonokuchi or hybrid vs tubes for hd600 and sr80i ?
  242. Tube/SS OTL single tube recommendations
  243. Pseudo Bravo headphone amplifier
  244. PUSH-PULL HEADPHONE AMP
  245. Single valve amp
  246. My desktop Objective2 amp
  247. O2 loud turn on transient fix help...
  248. Help wanted to find an old schematic
  249. Dual TPA6120A2 headphone design to eliminate crosstalk
  250. Need an AMP recommendation, and have a couple questions.

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