View Full Version : Headphone Systems

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  1. Pseudo Bravo headphone amplifier
  3. Single valve amp
  4. My desktop Objective2 amp
  5. O2 loud turn on transient fix help...
  6. Help wanted to find an old schematic
  7. Dual TPA6120A2 headphone design to eliminate crosstalk
  8. Need an AMP recommendation, and have a couple questions.
  9. Pot value in cmoy
  11. OPA827 + Diamond Buffer
  12. newbie qustion
  13. Advice on USB Soundcard / USB DAC + Amplifier
  14. 6n2 + fu32 vacuum tube tube headphone amplifier
  15. Headphone amp recommendation required?
  16. Tube Headphone amplifier suggestions 2x(1:40) transformers
  17. Different grounding, different sound quality or what can be the problem?
  18. Radio Shack Digital to Analog Converter
  19. 2SC1815 alternative for Mini Zen
  20. Two-Way Headset Wiring
  21. whats worng with this circut
  22. Phono amp top slot board for O2 amplfier in B3 case
  23. Szekeres VE protection diodes?
  24. Headphone Amp Feels 'Electrified'
  25. Design Issue: Cascaded passive filer stages
  26. Headphone amp between source & amplifier - how to passthrough?
  27. Open Source Headphone Amplifier
  28. OPA2132/4 for headphones
  29. O2 LiPo Daughterboard
  30. Class AB with op-amp input, audible noise
  31. PCB check for a simple amp
  32. Home meade design AMP prob's
  33. Noise - how much is too much?
  34. Massively parallel LME49990 headamp
  35. Building the O2 - A novices build experience
  36. A Through-hole "Wire" Amp
  37. Adding a headphone output to CD PLAYER?
  38. Rod Elliot 113 - Headphone amp TOO MUCH GAIN
  39. Dual O2-Inspired, SMD Headphone Amp
  40. Low impedance phones, Please suggest amp design?
  41. Huge change in audio quality simply by changing the pads on headphones?
  42. what next, help please
  43. DIY isodynamic headphones?
  44. DIY replace jack plug: strange colors
  45. Canjam 2013 ?
  46. Can you disable DAC on O2 ODAC?
  47. Can i connect my sony pulse wireless heaset to a TV ?
  48. Audio controlled voltage mod.
  49. AKG K518
  50. Composite amplifier in class A
  51. A great Fostex T50RP amp?
  52. helmet speakers
  53. Ambisonics, and listening to binaural via speakers
  54. Cheap but linear headamp
  55. Thin Durable Flexible Wire to Fix Headphones
  56. If headphones are out-of-phase, can you hear it?
  57. Oatley K272 DC power options.
  58. A curious Inquiry involving internal headphone amp/powering multiple earbuds?
  59. recommend me a valve headphone amp - Beyer T1 & AKG Q701 etc
  60. HP amp out impedance vs. HP impedance
  61. O2 help with bass boost and 1/4 jack mods
  62. Anyone ever used LM4780 for headphones?
  63. Stax Type 1 headphone, anyone know what these are?
  64. DIY balanced headphone amp?
  65. Simple headphone amp from spare parts
  66. SENNHEISER HD800 Source Impedance
  67. TDA1308 - changing gain resistors
  68. Headphone Amp Selection?
  69. Classic v1 headphone amplifier
  70. RFI problems on diy headphone amp.
  71. power flickering on tube cmoy amp
  72. question about a circuit
  73. hello all is a dac worth buying
  74. Passive bell shaped EQ for headphones
  76. HD650 can I fix this?
  77. Headphones Amplifier HIFI
  78. An "O3" - 35% smaller SMD RS O2 headphone amp version
  79. need help with headphones
  80. Moe'stevens O2
  81. Need help - using J A Burgess 45 SE amp for headphones
  82. Akai EIE Pro or Lexicon I-O|22 for AKGQ 701 [Specs inside]
  83. Power switch driver board(Momentary switch) + output relay board(delayed ON/fast OFF)
  84. OpAmps to drive HD650 from AK4399 Vout DAC
  85. Where to place current limit output resistor?
  86. Headphone amp noise. Help!
  87. USB DAC & headphone Amp with 3D Printed Enclosure
  88. DIY amp/DAC with better measurements than O2/ODAC?
  89. Battery powered 4W amp
  90. stuffing cotton balls in headphones?
  91. Measuring headphone FR?
  92. LM1875 based amp by Sijose
  93. A version of an O2 Desktop Amp (ODA)
  94. ESP P113 voltage gain of 1, will it work?
  95. The No Headphone Amp!
  96. Help Needed - Push Pull Transformer replacement
  97. Improving Bass Response On A Popular Hybrid Design
  98. Koss Esp-9 to ESP-9b Conversion... Help needed with grounding scheme
  99. High power headphone amp
  100. New Modular Headphone Amplifier
  101. full range planar headphones using neodynium magnets
  102. JLH Chiarra or Hifisonix Class A buffer?
  103. Sennhesier HD424
  104. 2-channel regular ground, dual mono or "balanced"/bridged?
  105. Jack Plug Wiring Help
  106. New Portable Amplifier Project started
  107. Pimeta V2 or O2?
  108. JLH Class A headphone amp from ETI not WW
  109. Left/Right Channel balancer
  110. Choosing a DC storage/rail cap for cmoy like amp
  111. Feedback resistor size - opamps
  112. Can I add a Potentiometer to these Headphones?
  113. Headphone distribution schematics
  114. Stax upgrade recomendations please.
  115. tube amp designs for low impedance headphones?
  116. headphone buffer/output for usb/dac
  117. Personal EQ & AMP for Hearing loss
  118. Grado RS1 headphones
  119. MOSFET Headphone Amplifier
  120. Lehmann clones
  121. which amplifier kit on ebay?
  122. Koss HV/1LC - specifications
  123. Headphone maximum power
  124. Output device for SE Hybrid Headphone Amp
  125. Output impedance as compensation?
  126. New Headphone Amp kit supplier in OZ
  127. suggestion for a 200$ headamp
  128. Replace Blackbox m10 3-prong jack
  129. Sony MDR-V6 changed?
  130. New portable amplifier
  131. New portable amplifier
  132. Stax SRM-212 repair?
  133. Audiophile Gear vs. ODAC/O2 (DAC’s and Amp’s)
  134. Sennheiser HD650 vs AKG Q701 QJ
  135. Split-supply portable headphone amp / DAC
  136. A47 / Crystal CMoy
  137. Electrostatic Headphones
  138. akg k140 earpads
  139. Which design is better for portable linear amplification?
  140. Midgård, compact, low distortion, high quality, Class A Lateral FET headamp
  141. Copper for Headphone Amp Chassis
  142. The DAO SE all-FET Class-A ZGF Headphone Amplifier
  143. What is this?!
  144. Background noise - tube amp
  145. Am the only one who's not deaf....?
  146. Grado GS1000 died
  147. lme49600 buffering the output of a generic soundcard
  148. LMH6643 amplifier
  149. Balanced input headphone amp
  150. Rigs test
  151. Kevin Gilmore KGSSHV boards
  152. Universal Headphone Amp - fits different headphones
  153. Headphone distribution block (passive)
  154. Calculating audio transformer losses?
  155. O2 headphone amp with 4x 8.4V cells
  156. how to mix sound from notebook and external sound card and get headphones output
  157. Koss HV/1LC foam Ear Pads
  158. Any DIY/Upgrade Components Ideas for Bravo Audio V2 12AU7 HeadAmp?
  159. Class A mosfet headphone amplifier. How does it look?
  160. Headphone Connections
  161. Headphones
  162. my new MING DA MC300-EAR headphone. Would like your suggestions.
  163. Best Sounding AMP for IMOD ( Modded ipod ) LOD
  164. Any point in adding a audio transformer for more power?
  165. Convert Low V Aikido line stage to headphone use?
  166. Balder, OPA2134+BUF634 Headphone Amplifier
  167. A good Headphone Amp for AKG K240DF anybody? It's 88dB and 600ohm, Thank you.
  168. Converting an Amp to Balanced XLR
  169. Calculating output impedance of Morgan-Jones headphone amp?
  170. norrisr
  171. modulation-like distortion of music at low volumes
  172. My E5 Class A hifi headphone amp
  173. Midgard, a low distortion Lateral FET output Headphone Amplifier
  174. can someone look this over?
  175. STAX Earspeaker part
  176. noise cancelation
  177. Best headamp for Hifiman planars?
  178. Headphone Passthrough Techniques
  179. I need Amplifier.
  180. Tone Stack with 2 knobs and switches
  181. Another 6922/6AS7 OTL Project
  182. Can anyone help me, repairing my DACPort
  183. Upgrading ICs in headphone amps
  184. Creating headphone jack from speaker out
  185. resistors in cmoy
  186. Electret Mic -> Headphones
  187. akg 240M ear pads
  188. "Balanced" vs single ended headphone drive
  189. Source for these Aluminum headphone cases/chassis?
  190. How do I Improve bass handling in a headphone amp?
  191. Little help please
  192. Objective2 as preamp (Help Needed)
  193. Best Earbud (not earplug) headphones to buy?
  194. help with caps and resisters
  195. A small, low-voltage, battery operated amplifier
  196. O2 Headphone amp gerber files problem
  197. Audez'e LCD-2 - help needed for a DIY cable build
  198. My Objective 2 having weird issues
  199. Beyerdynamic A1 kit
  200. M-stage Op amp replacement (for the better)
  201. First amp build; need help choosing and understanding amps
  202. Want to build Unusual high powered battery powered headphone amp (and equalizer)
  203. Single Stator Electrostatic Headphone - issues?
  204. Just made o2 amps, now what? :)
  205. Pioneer SE-50 worth saving?
  206. Measuring and Correction of Frequency Response for Head-Phones
  207. MiniDSP for headphone EQ & crosstalk?
  208. Impedance balancing of headphones + pot
  209. TPA6120A2 with balanced crossfeed?
  210. NOOB DIY need some help.
  211. Building the O2 Headphone Amp
  212. Diamond buffer headphone amp- can I parallel outputs?
  213. B-Board Boxer Prototype Build Thread
  214. headphone amps vs headphone inputs?
  215. Amp between Xonar D1 and Audio Technica ATH-M50
  216. Quick CMOY Question
  217. Bias and stability
  218. Help with new DIY amp decision (5th Gen iPod, LOD, and 250ohm DT770 Pro)
  219. Wow daughter asks dad for help
  220. How many different versions of "The Wire" are there?
  221. Headset goes to surgery :)
  222. What is a portable headphone amplifier?
  223. A bit of DIY advice required
  224. $6 headphone amplifier from ebay
  225. Headphone cable wiring
  226. OPA AMP
  227. Single ended DAC + TPA6120, where to put the pot?
  228. Mjølner, another all discrete Lateral FET Headphone Amplifier
  229. Newb Going Down CMOY Blvd Hits Big Roadblock
  230. Matrix M-Stage Amp blew out gasket!
  231. CMoy Ahoy! Help!
  232. a portable headphone amp with bass and treble tone controls
  233. First build, CMOY
  234. Simplistic Class A MOSFET Headphone w Feedback: have I got my values right?
  235. Diy new headphone band.
  236. HA-PRO2
  237. Jecklin Float Model One
  238. β18 Stereo Headphone Amplifier
  239. High end Ortho Amp on a basic Russian Tube DHT SET DIY design
  240. boraomega´s STACATO HeadPhoneAmplifier
  241. Beware of Fake Beats Mixr Headphone
  242. DIY headpone amp with ~300mA output
  243. JDS Labs Charity Raffle - Prizes include 0DAC, 02, c412 and cMoy BB
  244. Balanced OTL headphone amp
  245. ODAC + PGA2320 + The Wire = The ultimate budget headphone system
  246. Modified CMOY amp sounds to low with certain head phones...
  247. Which to buy
  248. I'm designing a TPA6120 based headphone amp, is there anyone can give me some advice
  249. Cmoy BB linear PSU enclosure
  250. Use +12V PC molex connector to power headphone amp?

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