View Full Version : Headphone Systems

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  1. simple "passive" Crossfeed
  2. Dual Chip Cmoy
  3. 30 ohms of amplifier output impedance does not matter
  4. Sony ZX770BT vs ZX770BN
  5. How can I improve my sound with my takstar 671 ?
  6. Alternative to the lme49713 ?
  7. [Need help] I'm not satisfied with my DIY amp
  8. Sanity check for guitar mixer headphone amplifier
  9. Need a good and tested design
  10. Stax SRD 6/SB transformers for segmented speaker-panel above 10 kHz ? ?
  11. Noise cancelling earbuds for job
  12. help for single stage tube headphone amplifier
  13. is dc or ac powr suppy,mini op amp???
  14. german maestro 8,35D
  15. TI OPA1622EVM headphone driver eval board unboxing and hookup, part 1
  16. Help building DAC/HP Amp with ES9038PRO
  17. Why would a product have a headphone amp AND an audio op amp for headphones?
  18. Looking for headphone amp
  19. Noisy left channel
  20. objective 2 and beyerdynamic dt 990 pro 250 ohm
  21. headphones for large ears
  22. iPhone 7 is ditching the 3.5mm headphone jack
  23. Headphones on Speaker outputs
  24. JB Systems Beat6 headphone distortion
  25. Op-amp with darlington in feedback loop.
  26. Please review my first headphone amp design
  27. The smaller, flexible and stronger audio jack on kickstarter
  28. PASS ZEN single-end Class A Headphone amplifier
  29. Is www.electromod.co.uk working?
  30. Little Bear P8
  31. What chip is the LME49610 successor?
  32. Headphone amplifier selector
  33. Earbuds? At this moment...
  34. 6as7g powered OTL headphone amps
  35. Musical Fidelity 200 vs Sony MDR-10c
  36. Electrostatic Amp Build Thread
  37. Headphone amp sounds gritty and the 19MHz
  38. modifying amp for use with headphones
  39. E19 headphone amplifier board K2381 J407 MOSFET Yuanjing Audio
  40. Problem with Servo Circuit on my OP Amp Headphone Amp
  41. Change UE900 to PH-3504RH experience
  42. converting amplified pc speakers into multiple headphone amp
  43. How good are these China drivers?
  44. About using kapton for electrostatic headphone
  45. Looking for DIY headphone amp with low z hp support
  46. Hifi Hearing Aid
  47. [Help] Headamp design & layout
  48. OPA1688 Super CMOY, 2x 9V with real ground and headphone relay - PCBs
  49. Good class A headphone amp to build?
  50. Full noob, but would like to learn more and build
  51. Advice on finding a Power Supply for the O2 amp in Japan/100v
  52. Simple head-amp with high linearity
  53. Help for some issues regarding amp internal rewiring
  54. XEN SHPP -- Simple Headphone Protection
  55. Ultra-Hi-Res headamp
  56. a diy portable headphone amp system.
  57. Damping factor, could someone refresh my mind?
  58. Rudistor NX-03 clone
  59. Op-amp for headphones
  60. OP AMP rolling, in the HA or PRE?
  61. Amp for Fostex T50rp Mk3 - Objective2 or other?
  62. 3.5 mm to rca
  63. Amp design help needed.
  64. DC servo high offset on startup?
  65. Koss warranty
  66. Universal buffer/headamp based on OPA1622
  67. Millett Butte Headphone Amp Problem
  68. 3-Transistor Headphone Amplifier
  69. DIY "Bullet Headphones"
  70. splitting ground planes
  71. Psychosis
  72. No-gain diamond buffer headphone amplifier advice
  73. Changing Cap Value for Frequency Change
  74. Old phono pre amp as headphone buffer?
  75. Diamond buffer as portable amplifier
  76. JFET-only Headphone Amp "Circlotron КП903B".
  77. zenkit1 with akg714pro or sennheiser hd650
  78. Need a Shure earphone kludge
  79. Unity gain buffer for Sennheiser HD600
  80. Stabilizing difference amplifiers for headphone applications
  81. Mu-stage with mosfet on top
  82. Audio to headphone amp via USB
  83. Linkwitz low impedance xfeed board
  84. How to measure volume output for pot selection?
  85. Faulty Headphones?
  86. Need help for TPA6120 Headphone Amplifier
  87. Hybrid tube/MOSFET headphone amp
  88. Noob Building a α20 Headphone Amp
  89. AM I CRAZY? DIY nearfield nude driver desktop headphone concept
  90. will it work?
  91. HPA design - bipolar supplies, transformers, etc
  92. Problems intigrating headphone preamp with phono amp, fm transmitter...
  93. Balanced vs unbalanced 4 wire connection
  94. my probably new cross-feed
  95. Help appreciated!
  96. Headphone amp/dac combo for 200 (o2/oDac vs Schiit Stack vs ???)
  97. Avoid Harsh Noises From Regulator Spikes
  98. HD598 and OPA2134
  99. Noob Building an F5-HA
  100. Advice Selecting ebay Headphone DIY Board
  101. Gilmore Headphone Amp
  102. SMSL Sap II too loud
  103. Diamond Buffer with DC Servo
  104. headphone amplifier
  105. Ear bud connector
  106. Tube amp kit ideas for Ultrasone Pro 500 cans
  107. Triode as double triode
  108. Headphone Amp to Pi and Dac + Pro
  109. Little-Bear p1 questions
  110. XEN ZGF Portable Headphone Amplifier
  111. audio amp recommendation
  112. Stax SRD-X input
  113. RCA input Headphone Amp, Any Exist?
  114. Simply direct coupled class a headphone amp
  115. Beyerdynamic A1 clone, need some help
  116. Looking for Bluetooth, synchronous headphone/mic transmitter
  117. Need help pre CMOY build
  118. Help choose between two kits
  119. the amplifier on the tantalic triode 3C24 for all types of earphones and acoustics.
  120. Preparing for first opamp build
  121. Dual mono LME49600
  122. How to wire up a mic for an iphone
  123. Indeed G2 12AU7 Amp - circuit repair help
  124. Crossfeed for HD600
  125. [Headamp] upgrading a Lehmann BCL clone
  126. Class-A Mosfet Headphone Amplifier
  127. Case Layout for Headphone Amp and RPi
  128. Pioneer SE-M290 headphone broken headband repair
  129. Objective 2 amp issues
  130. Yet another headamp..a few questions
  131. Headphones unbalanced after driver replacment
  132. hifisonix small signal class a?
  133. Upgrading the Aune X1 SE/Pro HeadAmp/DAC/Pre-amp
  134. I/V stage running hot
  135. bandpass filter
  136. "My" first design headamp, DC-servo question
  137. Recommend a kit for newbie
  138. My Headphone AMP w. OPA134 & BUF634
  139. $500+/- headphone for movies/casual gaming
  140. Walker Amp Wireless World 1971
  141. ATH-M40x
  142. mains hum
  143. QRV04 Headphone Amp. + Red Baron v5 DAC
  144. Southwest Technical Products Corp. (SWTPC) Headphone Amp 202-C
  145. Adapting my Cmoy to TRRS headphones
  146. Cmoy input resistor value?
  147. Toxic Fraud
  148. BUF634 Open Loop with Single Supply
  149. what is standart smartphone headphone audio output power (mW) at 32 ohms?
  150. Amp for connecting ATH-R70X to PC
  151. Starving Student (20EZ7)
  152. Ebay amp..
  153. Stereo passive somation
  154. Focal Spirit One mod
  155. This is what happens...
  156. Stax pro SRD-7 hum
  157. Cmoy, Charge Pump Inverter, Regulated
  158. TPA6120 Output Impedace
  159. Opa2134 + Buf634 output impedance
  160. 8-pin 6.5mm headphone connector pinouts are needed
  161. TPA6120 Single Supply
  162. Biasing OPAMP to class A [Hi Current type]
  163. cmoy with a 2 x 12v psu
  164. DIY Headphone Amp - Comments and advice appreciated
  165. HRTFs and the AES69-2015
  166. Terry Gesualdo Headphone Adapter
  167. About HA5000 Design
  168. Chassis mount jack socket help
  169. Simple Diy headphone amp
  170. Headphone amp with 2SK1058
  171. Headphone output on push-pull amplifier?
  172. Since the njm4556 are so cheap... class a biasing
  173. An inverting version of the NwAvGuy O2 headphone amp vs. the original: THD+N
  174. How to add Headphone amplifier to Silicon Chip 2009 DAC?
  175. Hissing problem of a hybrid amp
  176. Amp matching to headphones
  177. I need new headphones
  178. my great sounding tube hpa
  179. Sennheiser headband repair
  180. Help with bass amp for headphones for study purposes
  181. cmoy op amp virtual ground question
  182. parallel opamp amplifier
  183. Isolate 2 headphone amps with one source - HELP!
  184. TPA6120 Breakout - Free Design Files
  185. PCM2707 and TPA6120 Amp - Boards and Design Files
  186. Recommendations for Closed-Back Headphones
  187. Headphones with dual jack, reduced volume
  188. Fault finding, BCL Clone, help needed.
  189. Low Impedance Headphone/Earphone Amp
  190. Do you use your O2 as desktop, portable, or both?
  191. Passive Bass Boost circuit?
  192. Looking for a schematic..
  193. Noise, too much noise.
  194. Pono in Balanced Mode
  195. Gaming Headphones mod ideas
  196. Material for Headphone cushion and fabric?
  197. Good low impedance headphone amp project
  198. Suggestion for headphone
  199. Anyone ID these headphones?
  200. My first headamp project
  201. Xfeed network
  202. Amp suggestion
  203. single-ended (hope:) ) headphone amplifier with minimal NFB and low THD
  204. Cavalli's EHHA r1 kit question
  205. Headphone amp series current limiter resistor
  206. HD600 recabling
  207. Tube amp with usb
  208. A little compilation Erwin's Amp
  209. Help with faulty Pioneer Headphones please?
  210. Sound Magic Hp200 Premium Audiophile headphones!
  211. Using sApii Pro TPA6120a2 at lower voltage?
  212. Grasshopper
  213. My mobile Headphone AMP w. OPA134 & BUF634
  214. Trying to convert a pre amp to an headphone amp I could use some help..
  215. what's up with Headwize website ?
  216. Digital potentiometer. Distortion and line level
  217. MOSFET amp instability
  218. Is the O2/ODAC combo right for me? Are there better alternatives for me?
  219. limited soundstage with headphones
  220. headset to microphone
  221. Does anyone know how to use the digital potentiometer DS1882
  222. High Fidelity Ear Protection: "Protect your ears from bad sounding HiFi systems!"
  223. Need Help With DIY Switch Box
  224. Looking for a simple high quality amp to drive 600 ohm load
  225. Load output resistors in parallel opamps amplifier
  226. Bone conduction headphones
  227. headphone cable choice
  228. Headphones on TA2024 Single powered D Class amp
  229. Help with volume control on a headphone amplifier?
  230. SIT Headphone amplifier (VFET S.F. buffer)
  231. Headphone impedance matching with tube head amp
  232. My O2 & Subbu DAC build
  233. Monster headphone rebuild - need help please
  234. Amplifier for akg k340 (400ohms)
  235. Single NE5532 driving 38ohms?
  236. class A Buffer
  237. Headphones invention challenge with Harman Audio
  238. DIY 12AU7 Hybrid Amp voltage variances
  239. O2 amp only playing sound through one channel
  240. Tone control
  241. Another site noob needing help with his O2!!
  242. Portable LME49720 Headphone Amp
  243. schematic request for tpa6120/ne5534 ebay amp
  244. Cable Dongle ? What is it?
  245. Are these ICs legitimate?
  246. single NE5532P headphone amp ?!
  247. How does op amp introduce power supply noise to output?
  248. CFA Headphones amplifier
  249. Which resistor value for Gain
  250. lme49600 pcb for discrete jensen 918

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