View Full Version : Headphone Systems

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  1. GAMECOM Headphone Cable
  2. Stereo crosstalk gets worse with frequency?
  3. Decware ZKIT3 Clipping
  4. WARNING hillyhifi
  5. 49600 Electrostatic Discharge Concerns
  6. So, your Grados are too bright?
  7. o2 flush gain switch?
  8. clip on heat sinks for TO-263
  9. Looking for a closed HP driver
  10. Headphone amp with RCA bypass grounding
  11. About Crossfeed concept
  12. Optimizing a TPA6120a2 layout
  13. Quality 6.35mm Stereo Headphone Socket?
  14. cmoy amp suggestions
  15. simple, high performance amp using DRV134?
  16. General Headphone Amplifier Survey
  17. O2 headamp PM latch PC board to stop O2 low battery buzzing
  18. Headphone system - volume pot placement.
  19. 2 wires for Return Terminal and 1 wire for (+) Terminal in EXPENSIVE Headphone cable
  20. Too simple MOSFET ESL amplifier
  21. summing to mono
  22. Inexpensive O2 faceplates on Ebay
  23. Headphone amp on perfboard: layout critics welcome
  24. *For Sale* objective 2 Failed to launch *For Sale*
  25. Producing Headphones
  26. Need help building a headphone relay
  27. Low cost Stax headphone amplifier
  28. Douglas self_Ground cancelling & 0-impedance ??
  29. 3,5 to RCA cable
  30. RJM Sapphire build thread:
  31. Mistakenly ordered a 100k pot for O2 amp.
  32. Broskie Headphone Amp - frequency response
  33. Brig, any thoughts?
  34. Help with volume independent humming...
  35. Benchmark headphone amp-white paper by John S.
  36. Simplest headphone amp circuit (something like you'd get in a walkman or MP3 player)?
  37. ATTN: Beyerdynamic owners
  38. new opamps break in
  39. 32 Ohm- actual impedance at diff. frequencies?
  40. Gilberd headphone amplifier
  41. Acoustics in closed vs. open design confusing - help needed!
  42. O2 amp troubleshooting - help a newbie!
  43. Headphones for music production
  44. Headphone Data Sheet Table with power, voltage & current
  45. Headphone amp also used as preamp for long cable
  46. ground question
  47. Adventures in Headamp Country
  49. Grado SR60 and a near field sub
  50. SCHURTER - 4802.2330 - SOCKET, 3.5MM JACK, PCB, 3POLE
  51. Receiver Headphone output - modifications?
  52. Headphone amplifier that runs on 5V?
  53. Headphones that pick up FM transmitted stations?
  54. Components for KA2209 headphone amplifier?
  55. stereo jacks look dangerous!
  56. Minimal headphone circuit.
  57. +/- 8/10V from 5V USB power converter
  58. Help choosing replacement headphones
  59. Bluetooth Headphones - Bluedio's "R+"
  60. Need help understanding current loops...
  61. Little-Bear B1 modding..
  62. Headphone amplifier using SJ2520
  63. Wich Over-Ear Headphones and a Soundcard or DAC/AMP Combo?
  64. How to DIY headphones?
  65. 19J6 Millett amp
  66. Valuable dual opa for headphones amp
  67. Need travel headphones < 300 dollars
  68. Objective + ODAC modifications
  69. Help my cmoy is popping caps
  70. SOHA II amp tripping
  71. cisco power supply, grounding and the Millett starving student
  72. cisco power supply, grounding and the Millett starving student
  73. Help Summing Two Headphone Outputs
  74. question re crossfeed for low imped phones
  75. 6DJ8 headphone amp
  76. THD vs bias voltage for ESL headphones
  77. Just for fun
  78. Creek OBH-21 SE problem
  79. Current source in diamond buffer
  80. Where do I start? (re: need a DIY amp project)
  81. 6N OCC 24awg single strand for headphones ?
  82. From amp w/ "bare wire" output to headphones...
  83. My new headphone amp
  84. Why are external amplifiers superior?
  85. Headphones and Hearing aids
  86. Reacheargeable CMoy Amp??
  87. Testing headphones
  88. Discrete op amp headphone amplifier module, based on Marantz
  89. Koss ESP9 Headphones Low Volume Fixed!
  90. Please help with DIY headphone amp.
  91. Huginn, High performance, Class A, Lateral FET headphone amplifier
  92. MAT12 / MAT14 based headphone amp
  93. DC servo for Sijosae Buffer
  94. connect two inverting op amps together
  95. Yet Another Cmoy - PCB layout with Eagle and making PCB
  96. How to prevent unwanted volume adjustments on volume knob of a portable amp
  97. Project Ember ?
  98. O2 and power questions...
  99. Beyerdynamic A1 clone gold, opamp rolling
  100. Is there a better way to implement buf634 other than place in a a loop?
  101. An early look at my new HPA design
  102. O2 XLR, St/Mono swtich, etc Mod. ?'s
  103. A question regarding bass boost and output buffers
  104. O2 headamp output booster PCB
  105. cMoybb op amp rolling with AD797BRZ
  106. Millett Hybrid Starving Student (12AU7)
  107. Good capacitors for cmoy
  108. mysterious headphones
  109. New 4 layer LME49610 Headphone Amplifier D1
  110. Simple Headphone's Amp for beginner
  111. upgrading x-can V1? anyone?
  112. Headphone Amps DIY for beginners
  113. some question about headphone amp (possibly the o2)
  114. Unknown Stax Headphones for SRD-7
  115. Moskido Hybrid headphone amplifier! Help needed
  116. Lowest capacitance hum-rejecting 4-wire headphone cable configuration
  117. Best amp possible for the hd-650
  118. Looking for a Headphone Amplifier
  119. Shure Earphones SE846
  120. Headphone equalization hardware and software
  122. pcb layout for grado ra1 ?
  123. grado ra1 clone
  124. Szekeres vs. PRR-SOL amplifier
  125. Optimal grounding
  126. 4 channel stereo mixer
  127. New PC setup.
  128. Class A Heaphone Amp
  129. DIY Headphone Tap + Passive Mixer
  130. Beats by Dr Dre headphones or alternative models/brands?
  131. In line sound limiter for headphones
  132. Adjustable Ear phone volume limiter
  133. MOSFET follower to my phone
  134. Crazy CMOY board
  135. starving student vs jonokuchi or hybrid vs tubes for hd600 and sr80i ?
  136. Tube/SS OTL single tube recommendations
  137. Pseudo Bravo headphone amplifier
  139. Single valve amp
  140. My desktop Objective2 amp
  141. O2 loud turn on transient fix help...
  142. Help wanted to find an old schematic
  143. Dual TPA6120A2 headphone design to eliminate crosstalk
  144. Need an AMP recommendation, and have a couple questions.
  145. Pot value in cmoy
  146. YAHA HELP
  147. OPA827 + Diamond Buffer
  148. newbie qustion
  149. Advice on USB Soundcard / USB DAC + Amplifier
  150. 6n2 + fu32 vacuum tube tube headphone amplifier
  151. Headphone amp recommendation required?
  152. Tube Headphone amplifier suggestions 2x(1:40) transformers
  153. Different grounding, different sound quality or what can be the problem?
  154. Radio Shack Digital to Analog Converter
  155. 2SC1815 alternative for Mini Zen
  156. Two-Way Headset Wiring
  157. whats worng with this circut
  158. Phono amp top slot board for O2 amplfier in B3 case
  159. Szekeres VE protection diodes?
  160. Headphone Amp Feels 'Electrified'
  161. Design Issue: Cascaded passive filer stages
  162. Headphone amp between source & amplifier - how to passthrough?
  163. Open Source Headphone Amplifier
  164. OPA2132/4 for headphones
  165. O2 LiPo Daughterboard
  166. Class AB with op-amp input, audible noise
  167. PCB check for a simple amp
  168. Home meade design AMP prob's
  169. Noise - how much is too much?
  170. Massively parallel LME49990 headamp
  171. Building the O2 - A novices build experience
  172. A Through-hole "Wire" Amp
  173. Adding a headphone output to CD PLAYER?
  174. Rod Elliot 113 - Headphone amp TOO MUCH GAIN
  175. Dual O2-Inspired, SMD Headphone Amp
  176. Low impedance phones, Please suggest amp design?
  177. Huge change in audio quality simply by changing the pads on headphones?
  178. what next, help please
  179. DIY isodynamic headphones?
  180. DIY replace jack plug: strange colors
  181. Canjam 2013 ?
  182. Can you disable DAC on O2 ODAC?
  183. Can i connect my sony pulse wireless heaset to a TV ?
  184. Audio controlled voltage mod.
  185. AKG K518
  186. Composite amplifier in class A
  187. A great Fostex T50RP amp?
  188. helmet speakers
  189. Ambisonics, and listening to binaural via speakers
  190. Cheap but linear headamp
  191. Thin Durable Flexible Wire to Fix Headphones
  192. If headphones are out-of-phase, can you hear it?
  193. Oatley K272 DC power options.
  194. A curious Inquiry involving internal headphone amp/powering multiple earbuds?
  195. recommend me a valve headphone amp - Beyer T1 & AKG Q701 etc
  196. HP amp out impedance vs. HP impedance
  197. O2 help with bass boost and 1/4 jack mods
  198. Anyone ever used LM4780 for headphones?
  199. Stax Type 1 headphone, anyone know what these are?
  200. DIY balanced headphone amp?
  201. Simple headphone amp from spare parts
  202. SENNHEISER HD800 Source Impedance
  203. TDA1308 - changing gain resistors
  204. Headphone Amp Selection?
  205. Classic v1 headphone amplifier
  206. RFI problems on diy headphone amp.
  207. power flickering on tube cmoy amp
  208. question about a circuit
  209. hello all is a dac worth buying
  210. Passive bell shaped EQ for headphones
  212. HD650 can I fix this?
  213. Headphones Amplifier HIFI
  214. An "O3" - 35% smaller SMD RS O2 headphone amp version
  215. need help with headphones
  216. Moe'stevens O2
  217. Need help - using J A Burgess 45 SE amp for headphones
  218. Akai EIE Pro or Lexicon I-O|22 for AKGQ 701 [Specs inside]
  219. Power switch driver board(Momentary switch) + output relay board(delayed ON/fast OFF)
  220. OpAmps to drive HD650 from AK4399 Vout DAC
  221. Where to place current limit output resistor?
  222. Headphone amp noise. Help!
  223. USB DAC & headphone Amp with 3D Printed Enclosure
  224. DIY amp/DAC with better measurements than O2/ODAC?
  225. Battery powered 4W amp
  226. stuffing cotton balls in headphones?
  227. Measuring headphone FR?
  228. LM1875 based amp by Sijose
  229. A version of an O2 Desktop Amp (ODA)
  230. ESP P113 voltage gain of 1, will it work?
  231. The No Headphone Amp!
  232. Help Needed - Push Pull Transformer replacement
  233. Improving Bass Response On A Popular Hybrid Design
  234. Koss Esp-9 to ESP-9b Conversion... Help needed with grounding scheme
  235. High power headphone amp
  236. New Modular Headphone Amplifier
  237. full range planar headphones using neodynium magnets
  238. JLH Chiarra or Hifisonix Class A buffer?
  239. Sennhesier HD424
  240. 2-channel regular ground, dual mono or "balanced"/bridged?
  241. Jack Plug Wiring Help
  242. New Portable Amplifier Project started
  243. Pimeta V2 or O2?
  244. JLH Class A headphone amp from ETI not WW
  245. Left/Right Channel balancer
  246. Choosing a DC storage/rail cap for cmoy like amp
  247. Feedback resistor size - opamps
  248. Can I add a Potentiometer to these Headphones?
  249. Headphone distribution schematics
  250. Stax upgrade recomendations please.

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