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

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