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  1. Balanced Headphone amplifier for HiRes Bluray
  2. Shorted Channels w/o apparent effect on SQ
  3. ESL headphones and amp.
  4. Which Amp best suited for Earphone
  5. OUTONE Pseudobridge system
  6. Which amplifier for Sennheiser HD 598?
  7. Headphone Amp IC
  8. HIGH performance HeadPhone amplifier OUTONE
  9. Another take on the Diamond Buffer
  10. First Headphone Amp Build
  11. Another implementation of Class A buffer for headphone
  12. Schematic help for wierd problem.
  13. CMoy with other Chips
  14. HiFi Headphone Amp for Recording Studio
  15. special tool for 3.5mm strain relief?
  16. IEM Amp Design Help
  17. Converting the Bugle2 to a headphone amp?
  18. A High-Quality, High-Power Headphone Amplifier
  19. Stereo intercom for my experimental airplane
  20. [ask] Is there a way to mod a CMOY amp to have more power?
  21. Opa551 getting very hot in inverting configuration
  22. low impedence buffer
  23. A simple 2-Ch mixer, suggestions, ideas?
  24. O2 Amp Build - Resistor Question
  25. How to bypass volume potentiometer Sennheiser PC360
  26. DC protection for headphones
  27. Should replacement headphone cable telescope the shield?
  28. Headphone Attenuator, Or do I need an amp
  29. starting diy with a cmoy
  30. Neodymium Magnets - Strength/Weight
  31. Which Class-A Build?
  32. Headphone Mic Wiring
  33. Portabel Headphone Amplifier
  34. Precission EQ of Headphones
  35. Ribbon Microphones for Noise Canceling
  36. adding 18 watt valve amp on pc
  37. 5x5 Headphone amplifier/Preamplifer
  38. Headphone amp?
  39. Isodynamic Planar Magnetic Headphones
  40. ATH-DN1000USB Audio Technica DNote Digital USB Headphone
  41. Simple SE buffer, any better idea ?
  42. Ribbon Drivers in Headphones
  43. 600 Ohm headphones that are not Beyerdynamic
  44. First time building CMOY - Need some help
  45. specification of headphone
  46. Differences in headphones and speaker amps
  47. Head 'n' HiFi - Walter: O2 Headphone Amp Kit
  48. head amp for AKG K-2xx serie(600 Ohm)
  49. High Performance Class A Current Feeback Headphone Amplifier
  50. Inverting CMOY with inverting DC servo for 5V USB
  51. Output Resistor on Bravo V2
  52. First build, needing a little direction
  53. cmoy tube amp... mic amp?
  54. Headphone insert
  55. Two stage opamp amplifier PCB 5x5cm
  56. Classic-50mW
  57. OPA2134 headphone amplifier or recommend something better
  58. Replacing power MOSFETs in SDS Labs headphone amplifier
  59. Headphone amplifier (Lavardin Follower)
  60. One Ohm Resistor Separating Grounds?
  61. Power handling value of headphone drivers?
  62. Turning stereo signal to two mono signals
  63. Hybrid Headphone Amplifier
  64. problem with my first lme49723 amp
  65. Theoretical Full Range Ribbon Headphones
  66. TPA6120 Resistor Question
  67. Cmoy voltage fluctuation problem
  68. High-voltage hybrid headphone amp
  69. Why such a large input series resistor?
  70. inductor+resistor network for headphone amp output?
  71. My Own Headphone Amp
  72. Diy headphone options for AKG k701's
  73. OPA2134 Input Stage...
  74. OPA2134+LM6172 composite amp ?
  75. dual purpose amp question.
  76. importance of output impedance for headphones?
  77. AKG 601 cable really BI-WIRE?
  78. OP-amp getting hot
  79. Headphone Amplifier project
  80. Modifying the SMSL SAP VI for low impedance headphones
  81. artwork on cans?
  82. My first Desktop HPA
  83. Volume control
  84. Best way to implement a voltage gain stage with opamp?
  85. DIY HEADPHONES
  86. Audeze LCD poor comfort – any mods?
  87. Headphone capsules: OEM stuff
  88. OPA2134/IRF510 Schematic...
  89. Need Headphone Amp Schematic for NJM4556
  90. Headphones for me, speakers for wife
  91. Headphone amp level = line level? (Maybe obvious question)
  92. My first HPA design...comments please!
  93. Transparent & Objective: My Objective 2 build
  94. My O2 Portable Amp
  95. O2 Front Panel
  96. My LM5532 Headphone Amplifier project
  97. CMOY with Common Collector Buffer
  98. CMoy Desktop with Buffers
  99. Objective o2 diy no sound
  100. Cmoy help please!
  101. µCmoy - My take on the portable CMoy amp
  102. My Headphone amp. Very diy...
  103. Opa2134 Max. Power dissipation
  104. 49600 single ended amp; I blew up the output caps!
  105. MultiLoop Amp Output impedance
  106. Need a small amplifier
  107. OPA2134 in parallel
  108. Desktop Cmoy with NJM4556 Buffers
  109. Portable headphone amp
  110. NJM4556 Output Impedance
  111. TPA6120A2 Input Bias Voltage Protection
  112. geek Wave DAP
  113. HPA-1 Class A Headphone Amplifier
  114. Very good Headphone Amplifier
  115. CMOY problem - any ideas welcome
  116. CMOY problem - any ideas welcome
  117. CMOY issues - all ideas welcome
  118. HELP: tuning for AKG601 + MJ mini tube amp
  119. Crosstalk issue with homebrew headphone amps
  120. A composite with LT1210 - another way of doing it
  121. CMoy Opa2134 minimum Gain
  122. Cmoy vs Chipamps
  123. DIY portable USB headphone AMP/DAC- recommended ICs?
  124. My first amp!
  125. Pot before a high pass filter
  126. CMoy Mod for drive speakers
  127. Old School tda2003 Headphone amp
  128. Noobie looking for a cheap heaphones amp
  129. Headphone amp from AN-272 Op Amp Booster Designs
  130. Elektor improved headphone preamp. Is it good quality?
  131. Cmoy with RA input?
  132. GAMECOM Headphone Cable
  133. Stereo crosstalk gets worse with frequency?
  134. Decware ZKIT3 Clipping
  135. WARNING hillyhifi
  136. 49600 Electrostatic Discharge Concerns
  137. So, your Grados are too bright?
  138. o2 flush gain switch?
  139. clip on heat sinks for TO-263
  140. Looking for a closed HP driver
  141. Headphone amp with RCA bypass grounding
  142. About Crossfeed concept
  143. Optimizing a TPA6120a2 layout
  144. Quality 6.35mm Stereo Headphone Socket?
  145. cmoy amp suggestions
  146. simple, high performance amp using DRV134?
  147. General Headphone Amplifier Survey
  148. O2 headamp PM latch PC board to stop O2 low battery buzzing
  149. Headphone system - volume pot placement.
  150. 2 wires for Return Terminal and 1 wire for (+) Terminal in EXPENSIVE Headphone cable
  151. Too simple MOSFET ESL amplifier
  152. summing to mono
  153. Inexpensive O2 faceplates on Ebay
  154. Headphone amp on perfboard: layout critics welcome
  155. *For Sale* objective 2 Failed to launch *For Sale*
  156. Producing Headphones
  157. Need help building a headphone relay
  158. Low cost Stax headphone amplifier
  159. Douglas self_Ground cancelling & 0-impedance ??
  160. 3,5 to RCA cable
  161. RJM Sapphire build thread:
  162. Mistakenly ordered a 100k pot for O2 amp.
  163. Broskie Headphone Amp - frequency response
  164. Brig, any thoughts?
  165. Help with volume independent humming...
  166. Benchmark headphone amp-white paper by John S.
  167. Simplest headphone amp circuit (something like you'd get in a walkman or MP3 player)?
  168. ATTN: Beyerdynamic owners
  169. new opamps break in
  170. 32 Ohm- actual impedance at diff. frequencies?
  171. Gilberd headphone amplifier
  172. Acoustics in closed vs. open design confusing - help needed!
  173. O2 amp troubleshooting - help a newbie!
  174. Headphones for music production
  175. Headphone Data Sheet Table with power, voltage & current
  176. Headphone amp also used as preamp for long cable
  177. ground question
  178. Adventures in Headamp Country
  179. GIBRID TELEFONE AMP.
  180. Grado SR60 and a near field sub
  181. SCHURTER - 4802.2330 - SOCKET, 3.5MM JACK, PCB, 3POLE
  182. Receiver Headphone output - modifications?
  183. Headphone amplifier that runs on 5V?
  184. Headphones that pick up FM transmitted stations?
  185. Components for KA2209 headphone amplifier?
  186. stereo jacks look dangerous!
  187. Minimal headphone circuit.
  188. +/- 8/10V from 5V USB power converter
  189. Help choosing replacement headphones
  190. Bluetooth Headphones - Bluedio's "R+"
  191. Need help understanding current loops...
  192. Little-Bear B1 modding..
  193. Headphone amplifier using SJ2520
  194. Wich Over-Ear Headphones and a Soundcard or DAC/AMP Combo?
  195. How to DIY headphones?
  196. 19J6 Millett amp
  197. Valuable dual opa for headphones amp
  198. Need travel headphones < 300 dollars
  199. Objective + ODAC modifications
  200. Help my cmoy is popping caps
  201. SOHA II amp tripping
  202. cisco power supply, grounding and the Millett starving student
  203. cisco power supply, grounding and the Millett starving student
  204. Help Summing Two Headphone Outputs
  205. question re crossfeed for low imped phones
  206. 6DJ8 headphone amp
  207. THD vs bias voltage for ESL headphones
  208. Just for fun
  209. Creek OBH-21 SE problem
  210. Current source in diamond buffer
  211. Where do I start? (re: need a DIY amp project)
  212. 6N OCC 24awg single strand for headphones ?
  213. From amp w/ "bare wire" output to headphones...
  214. My new headphone amp
  215. Why are external amplifiers superior?
  216. Headphones and Hearing aids
  217. Reacheargeable CMoy Amp??
  218. Testing headphones
  219. Discrete op amp headphone amplifier module, based on Marantz
  220. Koss ESP9 Headphones Low Volume Fixed!
  221. Please help with DIY headphone amp.
  222. Huginn, High performance, Class A, Lateral FET headphone amplifier
  223. MAT12 / MAT14 based headphone amp
  224. DC servo for Sijosae Buffer
  225. connect two inverting op amps together
  226. Yet Another Cmoy - PCB layout with Eagle and making PCB
  227. How to prevent unwanted volume adjustments on volume knob of a portable amp
  228. Project Ember ?
  229. O2 and power questions...
  230. Beyerdynamic A1 clone gold, opamp rolling
  231. Is there a better way to implement buf634 other than place in a a loop?
  232. An early look at my new HPA design
  233. O2 XLR, St/Mono swtich, etc Mod. ?'s
  234. A question regarding bass boost and output buffers
  235. O2 headamp output booster PCB
  236. cMoybb op amp rolling with AD797BRZ
  237. Millett Hybrid Starving Student (12AU7)
  238. Good capacitors for cmoy
  239. mysterious headphones
  240. New 4 layer LME49610 Headphone Amplifier D1
  241. Simple Headphone's Amp for beginner
  242. upgrading x-can V1? anyone?
  243. Headphone Amps DIY for beginners
  244. some question about headphone amp (possibly the o2)
  245. Unknown Stax Headphones for SRD-7
  246. Moskido Hybrid headphone amplifier! Help needed
  247. Lowest capacitance hum-rejecting 4-wire headphone cable configuration
  248. Best amp possible for the hd-650
  249. Looking for a Headphone Amplifier
  250. Shure Earphones SE846

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