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  1. Pro-ject Head Box S board photo
  2. OPA1622/VSON10 breakout board layout
  3. FiiO Brand
  4. Single ended discrete HP amp - question about earthing
  5. How to adjust the gain on Project Headbox s
  6. "Pure digital" Audio Technica DSR9BT
  7. What my name says
  8. I need headphone amp. Lehmann?
  9. Beyerdynamic A1 Clone Troubleshooting
  10. VU-Meters in DIY Amp
  11. Any reason to recap Stax SRM-X
  12. I need a +12v 0 -12v small wall mounted psu.
  13. Headphone equalization after amp
  14. A tube headphone amplifier
  15. LT1206 composite headphone amp
  16. replacing original headphone drivers in bluetooth 8$ headset?
  17. Diy planar headphones in details
  18. question about plasma headphones
  19. UTHAiM -- Just for Fun
  20. Yet another Cmoy
  21. Compact headphone amp design
  22. Anyone Recognize this Headphone Amp?
  23. Headphone surgery?
  24. This seems like a good amplifier... tell me I'm wrong.
  25. Questions about Meier crossfeed
  26. Direct Microphone -> Headphone Amp
  27. Stax SR-X MkII repair
  28. Merlins SSG Headphone amp
  29. "Estudiante" Hybrid (7370 + MOSFET)
  30. Anyone recognize this headphone amp pcb?
  31. AmpCasq: an OPA1622 integrated headamp project
  32. Autotransformer (no gain)
  33. question about ckkiii headamp
  34. Headphone amp using TI TPA6110A2
  35. Cmoy amp - unbalanced ground ?
  36. Lowest parts count grado amp.
  37. Better railsplitter (virtual ground)
  38. Silicon Chip DAC 2007 adding headphone out with volume control
  39. Active Crossfeed
  40. My Blue Hawaii Tube Amplifier version
  41. Output Impedance & Planars
  42. Schematic for Ebay Beyerdynamic A1 Amp
  43. Building Headphones from scratch
  44. Blind Virtual Audition of Several Headamps
  45. The Quad Squad Head Phone Amplifier
  46. CanJam NYC Feb 4,5
  47. O2 Measurements & Review
  48. Bottlehead Crack manual help
  49. Death Of Zen Headphone Amplifier
  50. Choosing solution, Audio transformer or op-amp booster circuit?
  51. VU meter for headphone amp
  52. Chassis mount version of Edcor PCW10k-7k/300-32
  53. Re: Pavouk Headphone amp PC boards
  54. Balanced DAC and The Wire BAL-BAL in one case
  55. Help me with this headamp/buffer
  56. anyone recognize this headphone brand?
  57. Help with a headphone jack and potentiometer
  58. Beyerdynamic A2 Clone on Ebay
  59. Are balanced headphones amps really better?
  60. AKG k240 DIY Recommendations
  61. BF862 based SE Class A Headamp without the HEAT
  62. X5 headphone Amplifier
  63. Neurochrome HP-1: Ultra-High End Headphone Amp
  64. THX AAA head amp for iPhone, other projects
  65. headphone amps for use with mobile
  66. tube amp with output transformer
  67. Apheared 47 bypass cap
  68. Death Of Zen Headphone Amplifer/ Music Server
  69. New STAX lambdas, SR-L300,L500
  70. Theremin headphone amplifier.
  71. DIY headphone amp for IEMs
  72. Interface an RA 200 headset. to a Pro Intercom BP1
  73. Which Headphone Amp Advise Please?
  74. simple "passive" Crossfeed
  75. Dual Chip Cmoy
  76. 30 ohms of amplifier output impedance does not matter
  77. Sony ZX770BT vs ZX770BN
  78. How can I improve my sound with my takstar 671 ?
  79. Alternative to the lme49713 ?
  80. [Need help] I'm not satisfied with my DIY amp
  81. Sanity check for guitar mixer headphone amplifier
  82. Need a good and tested design
  83. Stax SRD 6/SB transformers for segmented speaker-panel above 10 kHz ? ?
  84. Noise cancelling earbuds for job
  85. help for single stage tube headphone amplifier
  86. is dc or ac powr suppy,mini op amp???
  87. german maestro 8,35D
  88. TI OPA1622EVM headphone driver eval board unboxing and hookup, part 1
  89. Help building DAC/HP Amp with ES9038PRO
  90. Why would a product have a headphone amp AND an audio op amp for headphones?
  91. Looking for headphone amp
  92. Noisy left channel
  93. objective 2 and beyerdynamic dt 990 pro 250 ohm
  94. headphones for large ears
  95. iPhone 7 is ditching the 3.5mm headphone jack
  96. Headphones on Speaker outputs
  97. JB Systems Beat6 headphone distortion
  98. Op-amp with darlington in feedback loop.
  99. Please review my first headphone amp design
  100. The smaller, flexible and stronger audio jack on kickstarter
  101. PASS ZEN single-end Class A Headphone amplifier
  102. Is www.electromod.co.uk working?
  103. Little Bear P8
  104. What chip is the LME49610 successor?
  105. Headphone amplifier selector
  106. Earbuds? At this moment...
  107. 6as7g powered OTL headphone amps
  108. Musical Fidelity 200 vs Sony MDR-10c
  109. Electrostatic Amp Build Thread
  110. Headphone amp sounds gritty and the 19MHz
  111. modifying amp for use with headphones
  112. E19 headphone amplifier board K2381 J407 MOSFET Yuanjing Audio
  113. Problem with Servo Circuit on my OP Amp Headphone Amp
  114. Change UE900 to PH-3504RH experience
  115. converting amplified pc speakers into multiple headphone amp
  116. How good are these China drivers?
  117. About using kapton for electrostatic headphone
  118. Looking for DIY headphone amp with low z hp support
  119. Hifi Hearing Aid
  120. [Help] Headamp design & layout
  121. OPA1688 Super CMOY, 2x 9V with real ground and headphone relay - PCBs
  122. Good class A headphone amp to build?
  123. Full noob, but would like to learn more and build
  124. Advice on finding a Power Supply for the O2 amp in Japan/100v
  125. Simple head-amp with high linearity
  126. Help for some issues regarding amp internal rewiring
  127. XEN SHPP -- Simple Headphone Protection
  128. Ultra-Hi-Res headamp
  129. a diy portable headphone amp system.
  130. Damping factor, could someone refresh my mind?
  131. Rudistor NX-03 clone
  132. Op-amp for headphones
  133. OP AMP rolling, in the HA or PRE?
  134. Amp for Fostex T50rp Mk3 - Objective2 or other?
  135. 3.5 mm to rca
  136. Amp design help needed.
  137. DC servo high offset on startup?
  138. Koss warranty
  139. Universal buffer/headamp based on OPA1622
  140. Millett Butte Headphone Amp Problem
  141. 3-Transistor Headphone Amplifier
  142. DIY "Bullet Headphones"
  143. splitting ground planes
  144. Psychosis
  145. No-gain diamond buffer headphone amplifier advice
  146. Changing Cap Value for Frequency Change
  147. Old phono pre amp as headphone buffer?
  148. Diamond buffer as portable amplifier
  149. JFET-only Headphone Amp "Circlotron КП903B".
  150. zenkit1 with akg714pro or sennheiser hd650
  151. Need a Shure earphone kludge
  152. Unity gain buffer for Sennheiser HD600
  153. Stabilizing difference amplifiers for headphone applications
  154. Mu-stage with mosfet on top
  155. Audio to headphone amp via USB
  156. Linkwitz low impedance xfeed board
  157. How to measure volume output for pot selection?
  158. Faulty Headphones?
  159. Need help for TPA6120 Headphone Amplifier
  160. Hybrid tube/MOSFET headphone amp
  161. Noob Building a α20 Headphone Amp
  162. AM I CRAZY? DIY nearfield nude driver desktop headphone concept
  163. will it work?
  164. HPA design - bipolar supplies, transformers, etc
  165. Problems intigrating headphone preamp with phono amp, fm transmitter...
  166. Balanced vs unbalanced 4 wire connection
  167. my probably new cross-feed
  168. Help appreciated!
  169. Headphone amp/dac combo for 200 (o2/oDac vs Schiit Stack vs ???)
  170. Avoid Harsh Noises From Regulator Spikes
  171. HD598 and OPA2134
  172. Noob Building an F5-HA
  173. Advice Selecting ebay Headphone DIY Board
  174. Gilmore Headphone Amp
  175. SMSL Sap II too loud
  176. Diamond Buffer with DC Servo
  177. headphone amplifier
  178. Ear bud connector
  179. Tube amp kit ideas for Ultrasone Pro 500 cans
  180. Triode as double triode
  181. Headphone Amp to Pi and Dac + Pro
  182. Little-Bear p1 questions
  183. XEN ZGF Portable Headphone Amplifier
  184. audio amp recommendation
  185. Stax SRD-X input
  186. RCA input Headphone Amp, Any Exist?
  187. Simply direct coupled class a headphone amp
  188. Beyerdynamic A1 clone, need some help
  189. Looking for Bluetooth, synchronous headphone/mic transmitter
  190. Need help pre CMOY build
  191. Help choose between two kits
  192. the amplifier on the tantalic triode 3C24 for all types of earphones and acoustics.
  193. Preparing for first opamp build
  194. Dual mono LME49600
  195. How to wire up a mic for an iphone
  196. Indeed G2 12AU7 Amp - circuit repair help
  197. Crossfeed for HD600
  198. [Headamp] upgrading a Lehmann BCL clone
  199. Class-A Mosfet Headphone Amplifier
  200. Case Layout for Headphone Amp and RPi
  201. Pioneer SE-M290 headphone broken headband repair
  202. Objective 2 amp issues
  203. Yet another headamp..a few questions
  204. Headphones unbalanced after driver replacment
  205. hifisonix small signal class a?
  206. Upgrading the Aune X1 SE/Pro HeadAmp/DAC/Pre-amp
  207. I/V stage running hot
  208. bandpass filter
  209. "My" first design headamp, DC-servo question
  210. Recommend a kit for newbie
  211. My Headphone AMP w. OPA134 & BUF634
  212. $500+/- headphone for movies/casual gaming
  213. Walker Amp Wireless World 1971
  214. ATH-M40x
  215. mains hum
  216. QRV04 Headphone Amp. + Red Baron v5 DAC
  217. Southwest Technical Products Corp. (SWTPC) Headphone Amp 202-C
  218. Adapting my Cmoy to TRRS headphones
  219. Cmoy input resistor value?
  220. Toxic Fraud
  221. BUF634 Open Loop with Single Supply
  222. what is standart smartphone headphone audio output power (mW) at 32 ohms?
  223. Amp for connecting ATH-R70X to PC
  224. Starving Student (20EZ7)
  225. Ebay amp..
  226. Stereo passive somation
  227. Focal Spirit One mod
  228. This is what happens...
  229. Stax pro SRD-7 hum
  230. Cmoy, Charge Pump Inverter, Regulated
  231. TPA6120 Output Impedace
  232. Opa2134 + Buf634 output impedance
  233. 8-pin 6.5mm headphone connector pinouts are needed
  234. TPA6120 Single Supply
  235. Biasing OPAMP to class A [Hi Current type]
  236. cmoy with a 2 x 12v psu
  237. DIY Headphone Amp - Comments and advice appreciated
  238. HRTFs and the AES69-2015
  239. Terry Gesualdo Headphone Adapter
  240. About HA5000 Design
  241. Chassis mount jack socket help
  242. Simple Diy headphone amp
  243. Headphone amp with 2SK1058
  244. Headphone output on push-pull amplifier?
  245. Since the njm4556 are so cheap... class a biasing
  246. An inverting version of the NwAvGuy O2 headphone amp vs. the original: THD+N
  247. How to add Headphone amplifier to Silicon Chip 2009 DAC?
  248. Hissing problem of a hybrid amp
  249. Amp matching to headphones
  250. I need new headphones

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