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  1. simple active crossover
  2. Attenuation Versus Gain
  3. fake signal to bypassed inserts
  4. How to Mult (aka split) a line signal into 8 identical buffered outputs... properly!
  5. Mic preamp
  6. Silicon Chip Pre-amp not switching inputs
  7. Making a very simple volume control
  8. consumer --- > commercial
  9. Need advice isolating subwoofer channel from main L/R channels.
  10. What type of diode should i use in this circuit?
  11. Plz advise on balanced pot wiring
  12. Protecting my amp during circuit tests
  13. Pre amp output shorted?
  14. 4 channel mixer circuit?
  15. Wiring a Pot
  16. How to make a phase inverter?
  17. line level volume control
  18. Equalizer
  19. RL passive high pass line level filter
  20. Denon D-75 & diy plinth
  21. Many questions on mhennessy's Hi-Fi preamp (mainly about power-fail detect circuit)
  22. LF03 discrete opamp
  23. passive line level filter question
  24. DIC Integrated amplifier - seventies
  25. Sound Quality on Unity gain opamp
  26. PGA2310 Line Preamplifier + Free Software
  27. Remotely Controlled Motorized Volume Pot.
  28. Preamp Kit - New DIY'er
  29. Pre-Amp Mods - Suggestions
  30. why not use quarter inch stereo jacks for connecting hifi
  31. BSG Technologies QOL "Signal Completion Stage"
  32. What is the best use of 12AT7?
  33. Popping noise on input selector switch
  34. 3 TRS in, 3 TRS out, 1 knob volume.
  35. Fostex Volume Control "PC1EX" - Schematic wanted
  36. Schematic Focusrite Octopre??
  37. multichannel volume control
  38. JC-80 eBay PCBs & Power Train
  39. Parametric EQ values?
  40. Recommend a first diy phono pre-amp?
  41. Phono problems one side working
  42. TL071 question
  43. Forte F44 preamp, DC Voltage leak
  44. To build a high pass RL line level filter
  45. If You Don't Have a SIT, Fake It...
  46. 3 core audio cable
  47. Another Remote Alps
  48. matching sine wave wave file / expert opinion
  49. Can a delay circuit be beneficial between bass and mids?
  50. Exponential programmable resistor
  51. Balanced interconnect with 2 x 75 ohm coax cables?
  52. Volume Control Kit/Controller to work with WMCE-remotes
  53. cs3318 and arduino
  54. Anyone knows if Khozmo guy is still around
  55. What kind of connector is this and how can it be fixed?
  56. "8 ohm 3 way x-over" mod for 4ohm woofer ?
  57. 6SN7 Tube pre
  58. 2 channel to 7.1
  59. Pass Aleph L1.2
  60. Chinese mini VU Meters
  61. Three opamp 24db/oct crossover?
  62. Parametric EQ for subwoofer?
  63. Kit or Behringer ?
  64. Redesigning a cheap obsolete 8-track pre-amp.
  65. Help with circuit for preamp with eq and balanced output powered by phantom power
  66. Inexspensive volume control chips
  67. Linkwitz ASP Custom Build
  68. Shielded cable or faraday cage or both?
  69. Upgraded opamp in preamp and now there is a hum/buzz
  70. GFP-555
  71. mic tube preamp as line stage
  72. AV / HT Preamp
  73. audio matrix
  74. mic pre application buffer op-amp question
  75. Does this preamp look any good?
  76. Replacement for LM833 in active crossover
  77. Not another project yet
  78. RJM Audio B-Board Project
  79. Cause of weak Preamp channel
  80. Schematic Boston PV700
  81. discrete op amp
  82. Resistor between line out and GND: what for?
  83. Recap Rotel RC1070
  84. Speaker selector / level equalizer?
  85. Voltage Readings Following Soldering Error
  86. Selector switch - replacement - shielded wire?
  87. Frequency Response of WW Pots?
  88. Passive pre, adding buffers
  89. AI Modulus preamp...heat damage?
  90. auto level control for input
  91. Which opamp in this preamp circuit?
  92. Audio Pre Amplifier
  93. Cotton OCC 5N Silver Interconnect Cables
  94. Mic Preamp output protection
  95. Krell KAV-250cd Output stage drawn
  96. Stereo to Mono Circuit: need help with capacitor
  97. AD797 Preamp based on stolen trademark
  98. Solderless RCA plugs for DIY interconnects
  99. options for source selector/volume control <100/$150
  100. Pre Amp with pre-out for Arjen Helder Ta2020
  101. Cables: different YES - better ???
  102. Arcam AV9 processor
  103. Looking for unbalanced to balanced transformer
  104. Frequency cut out switches. Graphic EQ.
  105. Stepped attenuator ?
  106. active tri line splitter using BJT transistor
  107. Neotech UPOCC Silver vs HGA Silver
  108. All In One Mixer/PC Project
  109. Sweep Eq
  110. Methods of Handling Various Devices and Grounding - Ground Loop Issues
  111. In-depth analysis of effect of high-quality interconnects
  112. Universal FET buffer / preamplifier
  113. Simple Pre-Amp with Variable High-Pass - This right?
  114. How to derermine the optimum bias resistor value ?
  115. output inductor?
  116. RGB LEDs amp audio level
  117. installing an analog audio output jack on a television?
  118. Help needed for Krell krs-1a preamp
  119. power conditioner project anyone ??
  120. DQ-LP1 Help
  121. upgrading active xover with LM4562
  122. 48VDC Phantom Power switch - seeking advice
  123. Rotel RTC-970 - Remote Controller RR970
  124. bi-amp'd, with passive mid/high ??
  125. Interesting Interconnect Cables
  126. Hum in RC cable
  127. Help for upgrading Pioneer receiver
  128. My attempt at a Monitor Volume Control with headphone outs
  129. Pumpkin Problems
  130. Rod Elliot - Audio Mixing Console (HELP!!)
  131. looking for a 3 way active crossover for diy powered speaker
  132. RFI woes
  133. need info on preamps for use on baf1
  134. Mixer Channel for observation
  135. Help With Existing Crossover Points
  136. stepped aattenuator - stop pops
  137. Adcom GFP-565 Input Selector
  138. Subsonic Filters & Film Caps
  139. DIY build of the Pioneer C-21 preamplifier
  140. Preamplifier with integrated circuits
  141. mixer circuits (looking for simple, but very high quality)...
  142. Subwoofer circuit: Going from speaker level to line level
  143. Adding Phantom Power to old board?
  144. Designing a versatile pre with balanced and unbalanced in/out
  145. Help Pls - Coupling Capacitor
  146. How to pick a good audio transistor?
  147. Volume control question
  148. Loudness stage
  149. Electret microphone Pre-amp
  150. Gold pin tube : does it really matters ?
  151. Mic preamp and high/low impedance technical question
  152. Studiomaster 16 x 4 Console
  153. Portable EQ? - Battery Power & SMALL
  154. DIY Tube Equalizer
  155. Using INA217 for Microphone Pre-amp
  156. Here's my DIY passive attenuator / pre / integrated DAC
  157. Basic questions on passive line-level XOs and with bi-amping
  158. Perreaux SM2 Custom
  159. Luxman A522 tonearm?
  160. passive switcher/splitter for monitor controller
  161. XO Components
  162. balanced to unbalanced convertor
  163. CD vs LP
  164. Stan Curtis site
  165. Counterpoint 5.1 Issue
  166. Ebay preamp FET
  167. Some help with high end input selector.
  168. Crossover help!!
  169. Help With Crossover 3-Way Seas 9.1 Home Theater
  170. Simple, good quality equalizer?
  171. Passive Balanced switching and Relay questions!!
  172. Preout mod
  173. remote control unit
  174. Schematic For Vendetta Xover
  175. One of best sounded Line Pre-/RIAA Head Amp from PureAudio-who have heard ?
  176. LDR att. L+R imbalance?
  177. Schematics needed for 3V 1KHz Sine wave generator
  178. is this a balanced input preamp? help m please?
  179. Copland CTA305 schematic
  180. just got a B&K CS-117, lets take a look inside...
  181. Diamond buffer kits any good for preamp?
  182. Analog Multichannel like ProLogic and ProLogic 2 (II) which professional Models
  183. JC-80 eBay PCBs
  184. Connecting many audio output devices to one input device
  185. BBE FJB-200X
  186. Help needed -Electrocompaniet EC4.7 preamp
  187. Improving rejection ratio of subtraction circuit
  188. Delay line for front channel
  189. Wireless analog connection TV -> amp?
  190. Op Amp Rail Splitter Question
  191. Substitution for NEC MuPC812C IC in Nakamichi CA-7A?
  192. Preamp Impedance Question
  193. tone control schematics please
  194. Avoid Potential Groundloop Problems in Headphone Amp
  195. DIY Input isolation filter
  196. Vishay/Dale RN60C or RN55E?
  197. Software for RIAA
  198. RTP3D instructions
  199. Adding an fx send/return to a mixer
  200. lme49710 preamp from china
  201. High gain pre amp noise problems.
  202. New black Jolida JD9 w pics.
  203. Math expression for parametric EQ project
  204. Passive Balanced Volume Control Questions
  205. XLR switcher
  206. Building a Stereo Equalizer
  207. Phase extraction!!!
  208. Is the blue velvet Alps still best price/performance pot?
  209. Preamp Capacitor Questions
  210. Yamaha Promix 01
  211. Q: Converting 5k pot to 20k pot
  212. Anthem D2v Mod
  213. (minimal) speaker level vs. line level high pass filter
  214. Passive Preamp?
  215. Need help troubleshooting PreAmp build
  216. prototype preamplifier
  217. voltage levels for line outs??
  218. Bottlehead Quickie
  219. NJM4580V MSOP in pre for recording?
  220. Attenuator / Pre-amp for Behringer A-500
  221. DIY-unidirectional electrect condenser microphone.
  222. Dahlquist DQ LP1
  223. 5-pin din input connector convert to rca
  224. LDR Based Input Selection
  225. Phantom Power MSOP op-amps
  226. PPS-Caps
  227. Bypassing a receiver's internal amp
  228. Ladder or Series Attenuator for volume?
  229. Active variable Low-Pass Filter 55-110 Hz
  230. Extremely Frustrated!!! Why won't my amp get loud!?!?!
  231. Parametric EQ problems
  232. radford pre Zd22
  233. how test electronic crossover without any instruments?
  234. High freq filtering of a (guitar) preamp?
  235. Floating Differential Signal
  236. 8-channel stereo line level switch
  237. Pre Amp/ line Problems... Help :/
  238. cd preamp for jlh69
  239. Two RCA Outputs into One! HOW TO!?
  240. A.C vs D.C coupling
  241. Passive Crossover for Loudspeakers? HELP!
  242. Passive Crossover for Loudspeakers? HELP!
  243. Inductor wiring for crossover
  244. Place amps next to rca inputs in enclosure?
  245. 3 BAND TONE CONTROL
  246. Signal Path Components
  247. Preamplifier
  248. A Different Opamp Compensation Technique.
  249. Preamp / Passive, for Biamp
  250. Pre-Amp earthing concern

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