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  1. Tone Control Question
  2. Help newbie please - Basic data on interconnects
  3. Problem with ultra-graph pro GEQ 3102 - Behringer
  4. CS3310 remote volume and source select
  5. passive treble attenuation
  6. Are tube preamps always grounded now?
  7. Hello need help...
  8. Modify MTX crossover ? ?
  9. Replace / remove couple capacitors in Teufel decoderstation 3
  10. Phono Switching Unit
  11. AD797 in preamp: need help
  12. My Preamp Project: Arduino, I2C, relay selector+attenuator, tube stage
  13. NEEDED diy low cut filter
  14. subwoofer management system
  15. Help Please for simple active Xover project
  16. More about LDR attenuators
  17. Low noise transistors for electret mic
  18. balanced line level baffle step circuit
  19. 12 dB enough for subwoofer lowpass filter?
  20. bi-amping, passive, active or analog crossover?
  21. Ashly SC-40 Input Noisy
  22. pre amp balance
  23. Buffer pre-amp
  24. Preamp Build
  25. BCY89 Dual Transistor
  26. Polystyrene Caps For Filters
  27. Stereo to Mono Converter
  28. Remote control help - Philips RC5 compat with 7805?
  29. gain block pcb's
  30. Passive preamp done right
  31. BUF634P - pinout
  32. Need help merging circuits
  33. Salas hotrodded blue DCB1 build
  34. DIY One fader mixer with Filter Low Pass, Hi Pass, Notch Pass Filter PGM
  35. I bought a little mixer today - Velleman Promix 50S
  36. need hints for narrow band pass filter
  37. Newbie trying to layout a crossover (Overnight Sensations)
  38. trigger output on preamp
  39. BorbelyAudio Closing
  40. SoundCraftsmen Manual/Schematic needed!!!!
  41. Audio Research LS 1 schematic
  42. "A Continuous-Time Active Filter", AudioXpress Magazine, Aug 2010
  43. First tube mic preamp?
  44. Noise while switching selector switch
  45. Need Assisted Listening circuit for hard of hearing
  46. How to check the behaviour of my PLLXO (passive filter)
  47. How to change crossover freq in Naim Naxo
  48. cap coupled output combined with cap coupled input?
  49. Bass Tone Control
  50. Denon 4306 pre-out modding
  51. Active balanced line output
  52. Okay to leave phono stage powered all the time?
  53. OEM Boards?
  54. A precision LED/LDR-based Attenuator
  55. signal splitter buffer
  56. Chassis Ground question (provided schematic)
  57. Dual 5534 vs. single 5532 to drive balanced line output
  58. buffer/pre ideas for PSU up to 13V DC and 1A
  59. high quality bass treble circuit for any amp.
  60. Why is this switch clicking/poping HELP please
  61. 6 channel pre amp?
  62. Harmon Kardon Citation Seventeen Repair
  63. dialectics and shield of an umbilical cord?
  64. Nuts Audio preamp/volume kit
  65. Equalizer as preamp
  66. Crossover problems???
  67. Audionics BT-2
  68. 185 ohms cable for speakers
  69. kicker 03kx3 crossover
  70. Dispre2 jfet - listening impressions
  71. The "Make Before Break" connection for audio interconnects (MBB configuration)
  72. An ultra Low Shunt Capacitance way for audio interconnections (LSC configuration)
  73. Hafler Iris preamp repair
  74. Connect Microphone to Phono
  75. JFET Active Crossover
  76. Lighternote attenuator
  77. Phono pre kit, Problem with DC in one channel
  78. Di-fet sub for J-fet?
  79. purist preamp
  80. Which preamp?
  81. Pot position in circuit?
  82. Pre-amp: INA217 reference implementation
  83. Volume / Source selector - open source project ?
  84. volume remote control module with PGA 2311
  85. op amp and cap questions
  86. Need to quiet down old mixer w/LM301s
  87. Do I need capacitors?
  88. OK to Sub 100k Pot For 150K?
  89. Why is this mic eq more cuting than boosting? help
  90. dual opamp BA4558
  91. Balanced/unbal ip/attenuator /Bal out pre
  92. Balanced Shunt Attenuator 10K
  93. Basic Mixer Design: need input
  94. Anthem Pre 2L: Potentiometer
  95. IR2110 Query
  96. Preamp building idea
  97. Ultimate Active Low Pass Filter
  98. Simple stereo gain stage
  99. Jadis JP-80MC power supply
  100. Mic, Line, EQ... Preamps
  101. Looking to build a phono stage
  102. Preamplifier Dispre 2 - JFET
  103. Active Crossover Using transistors.
  104. Op amp upgrade
  105. Phono Preamp Problem.
  106. Slight Hum From IC
  107. Lightspeed with a Tube Output Stage
  108. quick n dirty volume control
  109. passive preamp idea - will this work?
  110. 7.1 surround volume control
  111. LED VU metre - how to achieve inertia.. ?
  112. Expander
  113. Integrated Amp as a Pre-Amp
  114. Resistor mystery.
  115. PCB for source selection to go with lighter note
  116. Precision rectifier - gain ??
  117. Balanced input for JFet mic pre advice?
  118. price for opa 627. need help.
  119. DC Block for ADA
  120. hp filter ep2500
  121. Newb needs help eliminating hum/noise in simple mixer
  122. Help for Amplifier/buffer circuit design
  123. Mixing Centre channel into L & R
  124. using RG6QS cable for subwoofer line in
  125. Anyone running his ALeph P on battery power ?
  126. The Burr-Brown sound?
  127. My new Diy preamp, finally done.
  128. Newbie Preamp Question
  129. mono/stereo switch?
  130. Very long line level cables, what to use?
  131. First try on Preamp / NE5532
  132. The Synergy "Active" Crossover
  133. Constant Q parametric equalizers (SVF topology)
  134. Millet max as a preamp? schematics disclosed
  135. Building my own 10 Channel Preamp
  136. DIY Dodd Audio Buffer Kit
  137. SAE MK1B schematics??? anyone have them
  138. Simple and inexpensive Passive Balanced Attenuator possible?
  139. TEAC rx-9 dbx Unit
  140. problems with building a piezo preamp for undewater mic
  141. NJM4558L replacement
  142. Buffers in active xovers: opamps or tubes?
  143. ADI AD5292 as a log volume potentiometer
  144. Pre-Amp Fixed, Yet Not Sure Why
  145. Improving a "Disco mixer" to mid-fi performance
  146. Old analog desk EQ mod
  147. Wanted: Vestax PMC-17A Schematic
  148. Noise on unconnected preamp input
  149. Audio line DC offset
  150. Proper way to get mono?
  151. Valve pre amp/phono stage
  152. simple pre with offset problem
  153. Crown IC150A board layout
  154. Burr-Brown DRV134 AUDIO BALANCED LINE Receiver schematic PCB/Kit anybody?
  155. analogue VU-meter
  156. Quad 34 preamp tilt pot resistance ?
  157. What phono preamp circuit?
  158. Balance control R Values
  159. Help designing device to drain voltage?
  160. What Volume pot and selector?
  161. Pre Fader Listen Logic Switching
  162. linkwitz-riley 3way and 2way pcb kit??
  163. Which pre pcb build will suit me?
  164. Subsonic filter options
  165. Preamp Project
  166. Arcam AVP700 - turns off at random
  167. why there is a spike sound output from the speaker when turn off?
  168. Sowter-based TVC
  169. My unbalanced line mixer design needs something...
  170. Tube or SS Preamp?
  171. Marantz Consolette Schematic
  172. Is it possible to modify this mic preamp?
  173. LDR Switch?
  174. Tube preamp hum and noise.
  175. How to modify the preamp audio circuit ??
  176. Wiring Balanced Volume Pots?
  177. INA217 DRV134 Opamp bypass caps
  178. Capacitor Across Power Switch to Control Switch On Noise?
  179. Multi input (with phono) preamp kits?
  180. DIY Dancing Needle Box
  181. Phantom power INA217
  182. AV amps for use as crossovers and amps
  183. Basic Common Emitter Amp Help
  184. Minimalist Soft Start for 2sk170 Preamp
  185. INA217 Blocking capacitors
  186. Ina217-drv134
  187. The "Sound" of Electronics vs Transducers
  188. Ina217 drv134
  189. Mark Levinson No 28 capacitors
  190. Dummy load with output to power amp
  191. SRPP+ from Glass Ware needs some help please
  192. Guitar preamp envelope follower
  193. What's the Best input volage for TA2020?
  194. NOS user would appreciate review of PLLXO plans
  195. value of capacitors in signal path
  196. 15v dual power supply problem. need help
  197. Let's talk volume control alternatives?
  198. Lightspeed name change, any suggestions
  199. RJM Audio Gainbloc Preamplifier Mk. I
  200. Passive attenuation.
  201. Audio selector switch
  202. Adcom GFP-710 volume pot motor input voltage
  203. JDI Preamp Information Anyone?
  204. Mic preamp
  205. Electrocompaniet Preampliwire 1A Schematic
  206. P88 sound leakage
  207. How to DIY Attenuated Interconnects?
  208. Parasound P/LD-1500 schematics
  209. Passive preamp signal ground
  210. KENWOOD L-07 CII preamp
  211. PS for simple fet preamp
  212. My RF controled PGA2320 MiniVol and ch selector
  213. Meridian 501 Preamp Schematic
  214. LDR photoresistor attenuator preamp, in general
  215. JFET Mic Preamp Advice
  216. ACTIVE CROSSOVER: OPAM decision!
  217. LDR attenuator questions
  218. recommendations for commercial preamp
  219. Cheap Valve Preamp power supply?
  220. Difference Direct-, Normal- polarity
  221. ESP Project 94A, What am I doing wrong? (Simple Mixer)
  222. read out position of normal potentiometer
  223. Electrocompaniet Preampliwire 1
  224. Evaluate first preamp
  225. Kit Preamp for Sophia Electric Baby
  226. Pedja Rogic JFET or Nelson Pass B1?
  227. oAudio BASH 500w high-pass/boost filter schematics/sim here
  228. Yaquin MS12-B: sending signal to two amps?
  229. Carver Sonic Holography Schematic?
  230. LM1036 vs TDA1524 vs Other
  231. Cello Master Supply Parts Question
  232. Need a Baxandall 2way tonecontroll
  233. looking help to choice a preamp to build.
  234. Need volume control on active filter
  235. Seems like nobody is modding the Outlaw 990... true? why?
  236. Balanced line driver (DRV134) and noise
  237. Tube pre-amp for a vehicle?
  238. Can Someone help (Studiomaster mod)
  239. Hum with B&K MC-101 and Spectral MCR cartridge
  240. "...the best preamplifier ever made" says Mr. David Price, Hi-Fi- World
  241. The 2 Channel Audio Preamplifier - schematic
  242. Counterpoint SA-1000 buzzing problem
  243. Lightspeed Attenuator Sam Tellig Stereophile review
  244. AKAI PR-04A schematic
  245. Crossover PCBs?
  246. Which language for control software for pre
  247. B & O Penta Crossover Differences - experts required
  248. JFET mu follower phono or mic pre
  249. What is the best transformer type for TVC?
  250. impedance bridging problems

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