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  1. Headphone amp?
  2. Isodynamic Planar Magnetic Headphones
  3. ATH-DN1000USB Audio Technica DNote Digital USB Headphone
  4. Simple SE buffer, any better idea ?
  5. Ribbon Drivers in Headphones
  6. 600 Ohm headphones that are not Beyerdynamic
  7. First time building CMOY - Need some help
  8. specification of headphone
  9. Differences in headphones and speaker amps
  10. Head 'n' HiFi - Walter: O2 Headphone Amp Kit
  11. head amp for AKG K-2xx serie(600 Ohm)
  12. High Performance Class A Current Feeback Headphone Amplifier
  13. Inverting CMOY with inverting DC servo for 5V USB
  14. Output Resistor on Bravo V2
  15. First build, needing a little direction
  16. cmoy tube amp... mic amp?
  17. Headphone insert
  18. Two stage opamp amplifier PCB 5x5cm
  19. Classic-50mW
  20. OPA2134 headphone amplifier or recommend something better
  21. Replacing power MOSFETs in SDS Labs headphone amplifier
  22. Headphone amplifier (Lavardin Follower)
  23. One Ohm Resistor Separating Grounds?
  24. Power handling value of headphone drivers?
  25. Turning stereo signal to two mono signals
  26. Hybrid Headphone Amplifier
  27. problem with my first lme49723 amp
  28. Theoretical Full Range Ribbon Headphones
  29. TPA6120 Resistor Question
  30. Cmoy voltage fluctuation problem
  31. High-voltage hybrid headphone amp
  32. Why such a large input series resistor?
  33. inductor+resistor network for headphone amp output?
  34. My Own Headphone Amp
  35. Diy headphone options for AKG k701's
  36. OPA2134 Input Stage...
  37. OPA2134+LM6172 composite amp ?
  38. dual purpose amp question.
  39. importance of output impedance for headphones?
  40. AKG 601 cable really BI-WIRE?
  41. OP-amp getting hot
  42. Headphone Amplifier project
  43. Modifying the SMSL SAP VI for low impedance headphones
  44. artwork on cans?
  45. My first Desktop HPA
  46. Volume control
  47. Best way to implement a voltage gain stage with opamp?
  48. DIY HEADPHONES
  49. Audeze LCD poor comfort – any mods?
  50. Headphone capsules: OEM stuff
  51. OPA2134/IRF510 Schematic...
  52. Need Headphone Amp Schematic for NJM4556
  53. Headphones for me, speakers for wife
  54. Headphone amp level = line level? (Maybe obvious question)
  55. My first HPA design...comments please!
  56. Transparent & Objective: My Objective 2 build
  57. My O2 Portable Amp
  58. O2 Front Panel
  59. My LM5532 Headphone Amplifier project
  60. CMOY with Common Collector Buffer
  61. CMoy Desktop with Buffers
  62. Objective o2 diy no sound
  63. Cmoy help please!
  64. µCmoy - My take on the portable CMoy amp
  65. My Headphone amp. Very diy...
  66. Opa2134 Max. Power dissipation
  67. 49600 single ended amp; I blew up the output caps!
  68. MultiLoop Amp Output impedance
  69. Need a small amplifier
  70. OPA2134 in parallel
  71. Desktop Cmoy with NJM4556 Buffers
  72. Portable headphone amp
  73. NJM4556 Output Impedance
  74. TPA6120A2 Input Bias Voltage Protection
  75. geek Wave DAP
  76. HPA-1 Class A Headphone Amplifier
  77. Very good Headphone Amplifier
  78. CMOY problem - any ideas welcome
  79. CMOY problem - any ideas welcome
  80. CMOY issues - all ideas welcome
  81. HELP: tuning for AKG601 + MJ mini tube amp
  82. Crosstalk issue with homebrew headphone amps
  83. A composite with LT1210 - another way of doing it
  84. CMoy Opa2134 minimum Gain
  85. Cmoy vs Chipamps
  86. DIY portable USB headphone AMP/DAC- recommended ICs?
  87. My first amp!
  88. Pot before a high pass filter
  89. CMoy Mod for drive speakers
  90. Old School tda2003 Headphone amp
  91. Noobie looking for a cheap heaphones amp
  92. Headphone amp from AN-272 Op Amp Booster Designs
  93. Elektor improved headphone preamp. Is it good quality?
  94. Cmoy with RA input?
  95. GAMECOM Headphone Cable
  96. Stereo crosstalk gets worse with frequency?
  97. Decware ZKIT3 Clipping
  98. WARNING hillyhifi
  99. 49600 Electrostatic Discharge Concerns
  100. So, your Grados are too bright?
  101. o2 flush gain switch?
  102. clip on heat sinks for TO-263
  103. Looking for a closed HP driver
  104. Headphone amp with RCA bypass grounding
  105. About Crossfeed concept
  106. Optimizing a TPA6120a2 layout
  107. Quality 6.35mm Stereo Headphone Socket?
  108. cmoy amp suggestions
  109. simple, high performance amp using DRV134?
  110. General Headphone Amplifier Survey
  111. O2 headamp PM latch PC board to stop O2 low battery buzzing
  112. Headphone system - volume pot placement.
  113. 2 wires for Return Terminal and 1 wire for (+) Terminal in EXPENSIVE Headphone cable
  114. Too simple MOSFET ESL amplifier
  115. summing to mono
  116. Inexpensive O2 faceplates on Ebay
  117. Headphone amp on perfboard: layout critics welcome
  118. *For Sale* objective 2 Failed to launch *For Sale*
  119. Producing Headphones
  120. Need help building a headphone relay
  121. Low cost Stax headphone amplifier
  122. Douglas self_Ground cancelling & 0-impedance ??
  123. 3,5 to RCA cable
  124. RJM Sapphire build thread:
  125. Mistakenly ordered a 100k pot for O2 amp.
  126. Broskie Headphone Amp - frequency response
  127. Brig, any thoughts?
  128. Help with volume independent humming...
  129. Benchmark headphone amp-white paper by John S.
  130. Simplest headphone amp circuit (something like you'd get in a walkman or MP3 player)?
  131. ATTN: Beyerdynamic owners
  132. new opamps break in
  133. 32 Ohm- actual impedance at diff. frequencies?
  134. Gilberd headphone amplifier
  135. Acoustics in closed vs. open design confusing - help needed!
  136. O2 amp troubleshooting - help a newbie!
  137. Headphones for music production
  138. Headphone Data Sheet Table with power, voltage & current
  139. Headphone amp also used as preamp for long cable
  140. ground question
  141. Adventures in Headamp Country
  142. GIBRID TELEFONE AMP.
  143. Grado SR60 and a near field sub
  144. SCHURTER - 4802.2330 - SOCKET, 3.5MM JACK, PCB, 3POLE
  145. Receiver Headphone output - modifications?
  146. Headphone amplifier that runs on 5V?
  147. Headphones that pick up FM transmitted stations?
  148. Components for KA2209 headphone amplifier?
  149. stereo jacks look dangerous!
  150. Minimal headphone circuit.
  151. +/- 8/10V from 5V USB power converter
  152. Help choosing replacement headphones
  153. Bluetooth Headphones - Bluedio's "R+"
  154. Need help understanding current loops...
  155. Little-Bear B1 modding..
  156. Headphone amplifier using SJ2520
  157. Wich Over-Ear Headphones and a Soundcard or DAC/AMP Combo?
  158. How to DIY headphones?
  159. 19J6 Millett amp
  160. Valuable dual opa for headphones amp
  161. Need travel headphones < 300 dollars
  162. Objective + ODAC modifications
  163. Help my cmoy is popping caps
  164. SOHA II amp tripping
  165. cisco power supply, grounding and the Millett starving student
  166. cisco power supply, grounding and the Millett starving student
  167. Help Summing Two Headphone Outputs
  168. question re crossfeed for low imped phones
  169. 6DJ8 headphone amp
  170. THD vs bias voltage for ESL headphones
  171. Just for fun
  172. Creek OBH-21 SE problem
  173. Current source in diamond buffer
  174. Where do I start? (re: need a DIY amp project)
  175. 6N OCC 24awg single strand for headphones ?
  176. From amp w/ "bare wire" output to headphones...
  177. My new headphone amp
  178. Why are external amplifiers superior?
  179. Headphones and Hearing aids
  180. Reacheargeable CMoy Amp??
  181. Testing headphones
  182. Discrete op amp headphone amplifier module, based on Marantz
  183. Koss ESP9 Headphones Low Volume Fixed!
  184. Please help with DIY headphone amp.
  185. Huginn, High performance, Class A, Lateral FET headphone amplifier
  186. MAT12 / MAT14 based headphone amp
  187. DC servo for Sijosae Buffer
  188. connect two inverting op amps together
  189. Yet Another Cmoy - PCB layout with Eagle and making PCB
  190. How to prevent unwanted volume adjustments on volume knob of a portable amp
  191. Project Ember ?
  192. O2 and power questions...
  193. Beyerdynamic A1 clone gold, opamp rolling
  194. Is there a better way to implement buf634 other than place in a a loop?
  195. An early look at my new HPA design
  196. O2 XLR, St/Mono swtich, etc Mod. ?'s
  197. A question regarding bass boost and output buffers
  198. O2 headamp output booster PCB
  199. cMoybb op amp rolling with AD797BRZ
  200. Millett Hybrid Starving Student (12AU7)
  201. Good capacitors for cmoy
  202. mysterious headphones
  203. New 4 layer LME49610 Headphone Amplifier D1
  204. Simple Headphone's Amp for beginner
  205. upgrading x-can V1? anyone?
  206. Headphone Amps DIY for beginners
  207. some question about headphone amp (possibly the o2)
  208. Unknown Stax Headphones for SRD-7
  209. Moskido Hybrid headphone amplifier! Help needed
  210. Lowest capacitance hum-rejecting 4-wire headphone cable configuration
  211. Best amp possible for the hd-650
  212. Looking for a Headphone Amplifier
  213. Shure Earphones SE846
  214. Headphone equalization hardware and software
  215. VSSA FOR HEADPHONE
  216. pcb layout for grado ra1 ?
  217. grado ra1 clone
  218. Szekeres vs. PRR-SOL amplifier
  219. Optimal grounding
  220. 4 channel stereo mixer
  221. New PC setup.
  222. Class A Heaphone Amp
  223. DIY Headphone Tap + Passive Mixer
  224. Beats by Dr Dre headphones or alternative models/brands?
  225. In line sound limiter for headphones
  226. Adjustable Ear phone volume limiter
  227. MOSFET follower to my phone
  228. Crazy CMOY board
  229. starving student vs jonokuchi or hybrid vs tubes for hd600 and sr80i ?
  230. Tube/SS OTL single tube recommendations
  231. Pseudo Bravo headphone amplifier
  232. PUSH-PULL HEADPHONE AMP
  233. Single valve amp
  234. My desktop Objective2 amp
  235. O2 loud turn on transient fix help...
  236. Help wanted to find an old schematic
  237. Dual TPA6120A2 headphone design to eliminate crosstalk
  238. Need an AMP recommendation, and have a couple questions.
  239. Pot value in cmoy
  240. YAHA HELP
  241. OPA827 + Diamond Buffer
  242. newbie qustion
  243. Advice on USB Soundcard / USB DAC + Amplifier
  244. 6n2 + fu32 vacuum tube tube headphone amplifier
  245. Headphone amp recommendation required?
  246. Tube Headphone amplifier suggestions 2x(1:40) transformers
  247. Different grounding, different sound quality or what can be the problem?
  248. Radio Shack Digital to Analog Converter
  249. 2SC1815 alternative for Mini Zen
  250. Two-Way Headset Wiring

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