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  1. Studer A-779 caps?
  2. LM4562 Spice model
  3. Adding balancing transformer to preamp, signal loss
  4. Balance pot not working the way it should
  5. Potentiometer Resistance ???
  6. A better formula for Silonex LDR's
  7. Pre-amp output level question
  8. DC blocking caps ?
  9. Anyone have a good design for a 3-band isolator or EQ?
  10. question about this schematic ?
  11. Yamaha R-5 Receiver
  12. How to mix few balanced output?
  13. Can I Add a Balance Pot?
  14. How to apply right way the pot for balanced output?
  15. Preamp booster ?
  16. polarity with a balanced pllxo filter
  17. Microphone level balanced XLR mixer outputs?
  18. Preamp problem
  19. stereo 6G15 fender reverb with balanced in and out?
  20. behringer cx2310
  21. Need circuit, 6,12,18,24db attenuator
  22. Tube line level?
  23. Calculating gain of loudness control
  24. compressor diy
  25. Resistors valus for shunt stepped attenuator?
  26. QUAD 44 Pooge
  27. ARC LS25 mkII noise level
  28. EML 20A or 30A transformer coupled preamp
  29. X-Altra Mini One
  30. Passive mixer for two CD changers
  31. ARC LS25 mkII tube change
  32. Overvoltage protection
  33. condenser microphone question
  34. Simple preamp with baxandall
  35. Schematic/Service Manual DOD SR-835
  36. How to buffer a sallen-key circuit
  37. Connecting NVA P50 to DC I/P
  38. Multi-Channel Preamp for Stereo Output instruments
  39. Digital attenuator without PIC
  40. High Quality POT Recommendation
  41. Changing filter Arcam Black Box 3
  42. Attenuator for Rod Elliott's Bi-amped projects
  43. Low pass filters for removing ultrasonic noise?
  44. Aircraft Intercom
  45. Fet nine, 10 differences?
  46. Do all OPA2134PA's sound the same?
  47. discrete balanced to unbalanced conveter?
  48. XO3: The 1/2/3-way Active Crossover/filter PCB. Design suggestions welcome!
  49. THAT1512 (INA217) based preamp and input transformer
  50. electronic crossovers which to buy
  51. Probably a simple question, regarding volume control
  52. active crossover advice?
  53. Marantz 7C Kit
  54. Anyone tried this kit?
  55. Microphone Level Mixer
  56. Newbie audio chain question
  57. Need pre-amp with LM358
  58. 3 way sound desk split
  59. Tone Control Question
  60. Help newbie please - Basic data on interconnects
  61. Problem with ultra-graph pro GEQ 3102 - Behringer
  62. CS3310 remote volume and source select
  63. passive treble attenuation
  64. Are tube preamps always grounded now?
  65. Hello need help...
  66. Modify MTX crossover ? ?
  67. Replace / remove couple capacitors in Teufel decoderstation 3
  68. Phono Switching Unit
  69. AD797 in preamp: need help
  70. My Preamp Project: Arduino, I2C, relay selector+attenuator, tube stage
  71. NEEDED diy low cut filter
  72. subwoofer management system
  73. Help Please for simple active Xover project
  74. More about LDR attenuators
  75. Low noise transistors for electret mic
  76. balanced line level baffle step circuit
  77. 12 dB enough for subwoofer lowpass filter?
  78. bi-amping, passive, active or analog crossover?
  79. Ashly SC-40 Input Noisy
  80. pre amp balance
  81. Buffer pre-amp
  82. Preamp Build
  83. BCY89 Dual Transistor
  84. Polystyrene Caps For Filters
  85. Stereo to Mono Converter
  86. Remote control help - Philips RC5 compat with 7805?
  87. gain block pcb's
  88. Passive preamp done right
  89. BUF634P - pinout
  90. Need help merging circuits
  91. Salas hotrodded blue DCB1 build
  92. DIY One fader mixer with Filter Low Pass, Hi Pass, Notch Pass Filter PGM
  93. I bought a little mixer today - Velleman Promix 50S
  94. need hints for narrow band pass filter
  95. Newbie trying to layout a crossover (Overnight Sensations)
  96. trigger output on preamp
  97. BorbelyAudio Closing
  98. SoundCraftsmen Manual/Schematic needed!!!!
  99. Audio Research LS 1 schematic
  100. "A Continuous-Time Active Filter", AudioXpress Magazine, Aug 2010
  101. First tube mic preamp?
  102. Noise while switching selector switch
  103. Need Assisted Listening circuit for hard of hearing
  104. How to check the behaviour of my PLLXO (passive filter)
  105. How to change crossover freq in Naim Naxo
  106. cap coupled output combined with cap coupled input?
  107. Bass Tone Control
  108. Denon 4306 pre-out modding
  109. Active balanced line output
  110. Okay to leave phono stage powered all the time?
  111. OEM Boards?
  112. A precision LED/LDR-based Attenuator
  113. signal splitter buffer
  114. Chassis Ground question (provided schematic)
  115. Dual 5534 vs. single 5532 to drive balanced line output
  116. buffer/pre ideas for PSU up to 13V DC and 1A
  117. high quality bass treble circuit for any amp.
  118. Why is this switch clicking/poping HELP please
  119. 6 channel pre amp?
  120. Harmon Kardon Citation Seventeen Repair
  121. dialectics and shield of an umbilical cord?
  122. Nuts Audio preamp/volume kit
  123. Equalizer as preamp
  124. Crossover problems???
  125. Audionics BT-2
  126. 185 ohms cable for speakers
  127. kicker 03kx3 crossover
  128. Dispre2 jfet - listening impressions
  129. The "Make Before Break" connection for audio interconnects (MBB configuration)
  130. An ultra Low Shunt Capacitance way for audio interconnections (LSC configuration)
  131. Hafler Iris preamp repair
  132. Connect Microphone to Phono
  133. JFET Active Crossover
  134. Lighternote attenuator
  135. Phono pre kit, Problem with DC in one channel
  136. Di-fet sub for J-fet?
  137. purist preamp
  138. Which preamp?
  139. Pot position in circuit?
  140. Pre-amp: INA217 reference implementation
  141. Volume / Source selector - open source project ?
  142. volume remote control module with PGA 2311
  143. op amp and cap questions
  144. Need to quiet down old mixer w/LM301s
  145. Do I need capacitors?
  146. OK to Sub 100k Pot For 150K?
  147. Why is this mic eq more cuting than boosting? help
  148. dual opamp BA4558
  149. Balanced/unbal ip/attenuator /Bal out pre
  150. Balanced Shunt Attenuator 10K
  151. Basic Mixer Design: need input
  152. Anthem Pre 2L: Potentiometer
  153. IR2110 Query
  154. Preamp building idea
  155. Ultimate Active Low Pass Filter
  156. Simple stereo gain stage
  157. Jadis JP-80MC power supply
  158. Mic, Line, EQ... Preamps
  159. Looking to build a phono stage
  160. Preamplifier Dispre 2 - JFET
  161. Active Crossover Using transistors.
  162. Op amp upgrade
  163. Phono Preamp Problem.
  164. Slight Hum From IC
  165. Lightspeed with a Tube Output Stage
  166. quick n dirty volume control
  167. passive preamp idea - will this work?
  168. 7.1 surround volume control
  169. LED VU metre - how to achieve inertia.. ?
  170. Expander
  171. Integrated Amp as a Pre-Amp
  172. Resistor mystery.
  173. PCB for source selection to go with lighter note
  174. Precision rectifier - gain ??
  175. Balanced input for JFet mic pre advice?
  176. price for opa 627. need help.
  177. DC Block for ADA
  178. hp filter ep2500
  179. Newb needs help eliminating hum/noise in simple mixer
  180. Help for Amplifier/buffer circuit design
  181. Mixing Centre channel into L & R
  182. using RG6QS cable for subwoofer line in
  183. Anyone running his ALeph P on battery power ?
  184. The Burr-Brown sound?
  185. My new Diy preamp, finally done.
  186. Newbie Preamp Question
  187. mono/stereo switch?
  188. Very long line level cables, what to use?
  189. First try on Preamp / NE5532
  190. The Synergy "Active" Crossover
  191. Constant Q parametric equalizers (SVF topology)
  192. Millet max as a preamp? schematics disclosed
  193. Building my own 10 Channel Preamp
  194. DIY Dodd Audio Buffer Kit
  195. SAE MK1B schematics??? anyone have them
  196. Simple and inexpensive Passive Balanced Attenuator possible?
  197. TEAC rx-9 dbx Unit
  198. problems with building a piezo preamp for undewater mic
  199. NJM4558L replacement
  200. Buffers in active xovers: opamps or tubes?
  201. ADI AD5292 as a log volume potentiometer
  202. Pre-Amp Fixed, Yet Not Sure Why
  203. Improving a "Disco mixer" to mid-fi performance
  204. Old analog desk EQ mod
  205. Wanted: Vestax PMC-17A Schematic
  206. Noise on unconnected preamp input
  207. Audio line DC offset
  208. Proper way to get mono?
  209. Valve pre amp/phono stage
  210. simple pre with offset problem
  211. Crown IC150A board layout
  212. Burr-Brown DRV134 AUDIO BALANCED LINE Receiver schematic PCB/Kit anybody?
  213. analogue VU-meter
  214. Quad 34 preamp tilt pot resistance ?
  215. What phono preamp circuit?
  216. Balance control R Values
  217. Help designing device to drain voltage?
  218. What Volume pot and selector?
  219. Pre Fader Listen Logic Switching
  220. linkwitz-riley 3way and 2way pcb kit??
  221. Which pre pcb build will suit me?
  222. Subsonic filter options
  223. Preamp Project
  224. Arcam AVP700 - turns off at random
  225. why there is a spike sound output from the speaker when turn off?
  226. Sowter-based TVC
  227. My unbalanced line mixer design needs something...
  228. Tube or SS Preamp?
  229. Marantz Consolette Schematic
  230. Is it possible to modify this mic preamp?
  231. LDR Switch?
  232. Tube preamp hum and noise.
  233. How to modify the preamp audio circuit ??
  234. Wiring Balanced Volume Pots?
  235. INA217 DRV134 Opamp bypass caps
  236. Capacitor Across Power Switch to Control Switch On Noise?
  237. Multi input (with phono) preamp kits?
  238. DIY Dancing Needle Box
  239. Phantom power INA217
  240. AV amps for use as crossovers and amps
  241. Basic Common Emitter Amp Help
  242. Minimalist Soft Start for 2sk170 Preamp
  243. INA217 Blocking capacitors
  244. Ina217-drv134
  245. The "Sound" of Electronics vs Transducers
  246. Ina217 drv134
  247. Mark Levinson No 28 capacitors
  248. Dummy load with output to power amp
  249. SRPP+ from Glass Ware needs some help please
  250. Guitar preamp envelope follower

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