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  1. Cable Dongle ? What is it?
  2. Are these ICs legitimate?
  3. single NE5532P headphone amp ?!
  4. How does op amp introduce power supply noise to output?
  5. CFA Headphones amplifier
  6. Which resistor value for Gain
  7. lme49600 pcb for discrete jensen 918
  8. Headphone Buffer With Power Supply
  9. How to calculate Zobel/Boucherot Circuit
  10. MSA 30X Sound Amplifier
  11. Headphone Power Buffer
  12. 100Hz Hum in Lehmann Linear clone
  13. What you guys think of this Headphone amp?
  14. Personal Monitor System
  15. OBH-11 passive preamp mod
  16. "The Crocodile"
  17. PCM2407 DAC click & pop issue.
  18. Balanced Headphone amplifier for HiRes Bluray
  19. Shorted Channels w/o apparent effect on SQ
  20. ESL headphones and amp.
  21. Which Amp best suited for Earphone
  22. OUTONE Pseudobridge system
  23. Which amplifier for Sennheiser HD 598?
  24. Headphone Amp IC
  25. HIGH performance HeadPhone amplifier OUTONE
  26. Another take on the Diamond Buffer
  27. First Headphone Amp Build
  28. Another implementation of Class A buffer for headphone
  29. Schematic help for wierd problem.
  30. CMoy with other Chips
  31. HiFi Headphone Amp for Recording Studio
  32. special tool for 3.5mm strain relief?
  33. IEM Amp Design Help
  34. Converting the Bugle2 to a headphone amp?
  35. A High-Quality, High-Power Headphone Amplifier
  36. Stereo intercom for my experimental airplane
  37. [ask] Is there a way to mod a CMOY amp to have more power?
  38. Opa551 getting very hot in inverting configuration
  39. low impedence buffer
  40. A simple 2-Ch mixer, suggestions, ideas?
  41. O2 Amp Build - Resistor Question
  42. How to bypass volume potentiometer Sennheiser PC360
  43. DC protection for headphones
  44. Should replacement headphone cable telescope the shield?
  45. Headphone Attenuator, Or do I need an amp
  46. starting diy with a cmoy
  47. Neodymium Magnets - Strength/Weight
  48. Which Class-A Build?
  49. Headphone Mic Wiring
  50. Portabel Headphone Amplifier
  51. Precission EQ of Headphones
  52. Ribbon Microphones for Noise Canceling
  53. adding 18 watt valve amp on pc
  54. 5x5 Headphone amplifier/Preamplifer
  55. Headphone amp?
  56. Isodynamic Planar Magnetic Headphones
  57. ATH-DN1000USB Audio Technica DNote Digital USB Headphone
  58. Simple SE buffer, any better idea ?
  59. Ribbon Drivers in Headphones
  60. 600 Ohm headphones that are not Beyerdynamic
  61. First time building CMOY - Need some help
  62. specification of headphone
  63. Differences in headphones and speaker amps
  64. Head 'n' HiFi - Walter: O2 Headphone Amp Kit
  65. head amp for AKG K-2xx serie(600 Ohm)
  66. High Performance Class A Current Feeback Headphone Amplifier
  67. Inverting CMOY with inverting DC servo for 5V USB
  68. Output Resistor on Bravo V2
  69. First build, needing a little direction
  70. cmoy tube amp... mic amp?
  71. Headphone insert
  72. Two stage opamp amplifier PCB 5x5cm
  73. Classic-50mW
  74. OPA2134 headphone amplifier or recommend something better
  75. Replacing power MOSFETs in SDS Labs headphone amplifier
  76. Headphone amplifier (Lavardin Follower)
  77. One Ohm Resistor Separating Grounds?
  78. Power handling value of headphone drivers?
  79. Turning stereo signal to two mono signals
  80. Hybrid Headphone Amplifier
  81. problem with my first lme49723 amp
  82. Theoretical Full Range Ribbon Headphones
  83. TPA6120 Resistor Question
  84. Cmoy voltage fluctuation problem
  85. High-voltage hybrid headphone amp
  86. Why such a large input series resistor?
  87. inductor+resistor network for headphone amp output?
  88. My Own Headphone Amp
  89. Diy headphone options for AKG k701's
  90. OPA2134 Input Stage...
  91. OPA2134+LM6172 composite amp ?
  92. dual purpose amp question.
  93. importance of output impedance for headphones?
  94. AKG 601 cable really BI-WIRE?
  95. OP-amp getting hot
  96. Headphone Amplifier project
  97. Modifying the SMSL SAP VI for low impedance headphones
  98. artwork on cans?
  99. My first Desktop HPA
  100. Volume control
  101. Best way to implement a voltage gain stage with opamp?
  102. DIY HEADPHONES
  103. Audeze LCD poor comfort – any mods?
  104. Headphone capsules: OEM stuff
  105. OPA2134/IRF510 Schematic...
  106. Need Headphone Amp Schematic for NJM4556
  107. Headphones for me, speakers for wife
  108. Headphone amp level = line level? (Maybe obvious question)
  109. My first HPA design...comments please!
  110. Transparent & Objective: My Objective 2 build
  111. My O2 Portable Amp
  112. O2 Front Panel
  113. My LM5532 Headphone Amplifier project
  114. CMOY with Common Collector Buffer
  115. CMoy Desktop with Buffers
  116. Objective o2 diy no sound
  117. Cmoy help please!
  118. µCmoy - My take on the portable CMoy amp
  119. My Headphone amp. Very diy...
  120. Opa2134 Max. Power dissipation
  121. 49600 single ended amp; I blew up the output caps!
  122. MultiLoop Amp Output impedance
  123. Need a small amplifier
  124. OPA2134 in parallel
  125. Desktop Cmoy with NJM4556 Buffers
  126. Portable headphone amp
  127. NJM4556 Output Impedance
  128. TPA6120A2 Input Bias Voltage Protection
  129. geek Wave DAP
  130. HPA-1 Class A Headphone Amplifier
  131. Very good Headphone Amplifier
  132. CMOY problem - any ideas welcome
  133. CMOY problem - any ideas welcome
  134. CMOY issues - all ideas welcome
  135. HELP: tuning for AKG601 + MJ mini tube amp
  136. Crosstalk issue with homebrew headphone amps
  137. A composite with LT1210 - another way of doing it
  138. CMoy Opa2134 minimum Gain
  139. Cmoy vs Chipamps
  140. DIY portable USB headphone AMP/DAC- recommended ICs?
  141. My first amp!
  142. Pot before a high pass filter
  143. CMoy Mod for drive speakers
  144. Old School tda2003 Headphone amp
  145. Noobie looking for a cheap heaphones amp
  146. Headphone amp from AN-272 Op Amp Booster Designs
  147. Elektor improved headphone preamp. Is it good quality?
  148. Cmoy with RA input?
  149. GAMECOM Headphone Cable
  150. Stereo crosstalk gets worse with frequency?
  151. Decware ZKIT3 Clipping
  152. WARNING hillyhifi
  153. 49600 Electrostatic Discharge Concerns
  154. So, your Grados are too bright?
  155. o2 flush gain switch?
  156. clip on heat sinks for TO-263
  157. Looking for a closed HP driver
  158. Headphone amp with RCA bypass grounding
  159. About Crossfeed concept
  160. Optimizing a TPA6120a2 layout
  161. Quality 6.35mm Stereo Headphone Socket?
  162. cmoy amp suggestions
  163. simple, high performance amp using DRV134?
  164. General Headphone Amplifier Survey
  165. O2 headamp PM latch PC board to stop O2 low battery buzzing
  166. Headphone system - volume pot placement.
  167. 2 wires for Return Terminal and 1 wire for (+) Terminal in EXPENSIVE Headphone cable
  168. Too simple MOSFET ESL amplifier
  169. summing to mono
  170. Inexpensive O2 faceplates on Ebay
  171. Headphone amp on perfboard: layout critics welcome
  172. *For Sale* objective 2 Failed to launch *For Sale*
  173. Producing Headphones
  174. Need help building a headphone relay
  175. Low cost Stax headphone amplifier
  176. Douglas self_Ground cancelling & 0-impedance ??
  177. 3,5 to RCA cable
  178. RJM Sapphire build thread:
  179. Mistakenly ordered a 100k pot for O2 amp.
  180. Broskie Headphone Amp - frequency response
  181. Brig, any thoughts?
  182. Help with volume independent humming...
  183. Benchmark headphone amp-white paper by John S.
  184. Simplest headphone amp circuit (something like you'd get in a walkman or MP3 player)?
  185. ATTN: Beyerdynamic owners
  186. new opamps break in
  187. 32 Ohm- actual impedance at diff. frequencies?
  188. Gilberd headphone amplifier
  189. Acoustics in closed vs. open design confusing - help needed!
  190. O2 amp troubleshooting - help a newbie!
  191. Headphones for music production
  192. Headphone Data Sheet Table with power, voltage & current
  193. Headphone amp also used as preamp for long cable
  194. ground question
  195. Adventures in Headamp Country
  196. GIBRID TELEFONE AMP.
  197. Grado SR60 and a near field sub
  198. SCHURTER - 4802.2330 - SOCKET, 3.5MM JACK, PCB, 3POLE
  199. Receiver Headphone output - modifications?
  200. Headphone amplifier that runs on 5V?
  201. Headphones that pick up FM transmitted stations?
  202. Components for KA2209 headphone amplifier?
  203. stereo jacks look dangerous!
  204. Minimal headphone circuit.
  205. +/- 8/10V from 5V USB power converter
  206. Help choosing replacement headphones
  207. Bluetooth Headphones - Bluedio's "R+"
  208. Need help understanding current loops...
  209. Little-Bear B1 modding..
  210. Headphone amplifier using SJ2520
  211. Wich Over-Ear Headphones and a Soundcard or DAC/AMP Combo?
  212. How to DIY headphones?
  213. 19J6 Millett amp
  214. Valuable dual opa for headphones amp
  215. Need travel headphones < 300 dollars
  216. Objective + ODAC modifications
  217. Help my cmoy is popping caps
  218. SOHA II amp tripping
  219. cisco power supply, grounding and the Millett starving student
  220. cisco power supply, grounding and the Millett starving student
  221. Help Summing Two Headphone Outputs
  222. question re crossfeed for low imped phones
  223. 6DJ8 headphone amp
  224. THD vs bias voltage for ESL headphones
  225. Just for fun
  226. Creek OBH-21 SE problem
  227. Current source in diamond buffer
  228. Where do I start? (re: need a DIY amp project)
  229. 6N OCC 24awg single strand for headphones ?
  230. From amp w/ "bare wire" output to headphones...
  231. My new headphone amp
  232. Why are external amplifiers superior?
  233. Headphones and Hearing aids
  234. Reacheargeable CMoy Amp??
  235. Testing headphones
  236. Discrete op amp headphone amplifier module, based on Marantz
  237. Koss ESP9 Headphones Low Volume Fixed!
  238. Please help with DIY headphone amp.
  239. Huginn, High performance, Class A, Lateral FET headphone amplifier
  240. MAT12 / MAT14 based headphone amp
  241. DC servo for Sijosae Buffer
  242. connect two inverting op amps together
  243. Yet Another Cmoy - PCB layout with Eagle and making PCB
  244. How to prevent unwanted volume adjustments on volume knob of a portable amp
  245. Project Ember ?
  246. O2 and power questions...
  247. Beyerdynamic A1 clone gold, opamp rolling
  248. Is there a better way to implement buf634 other than place in a a loop?
  249. An early look at my new HPA design
  250. O2 XLR, St/Mono swtich, etc Mod. ?'s

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