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  1. Here's a weird enquiry
  2. C1583 & A798
  3. Volume Control with symmetrical out and in
  4. Building a Tee attenuator
  5. Noise in balanced outputs - Parasound
  6. Need some advice on a level booster...
  7. INA134-DRV134 balanced preamp
  8. how to add protection circuits (swith circuit)
  9. resistor(s) in ground paths to reduce hum, etc.
  10. My (quick and dirty) take at a PLLXO for OB, help is welcome
  11. Lundahl LL1530 - audio application?
  12. SP-6 Light with ECC801S
  13. Active crossover help
  14. Line Level Preamp, Using JFETs, in a can.
  15. Replacement push buttons for hafler?
  16. My fuzz pedal project is behaving badly
  17. My fuzz pedal project is behaving badly
  18. Op-amp Upgrade
  19. Output transformers for Line-level signal.
  20. PGA2310 control module
  21. Shields in internally balanced equipment
  22. First effort: MM/MC phono preamp with DC servo
  23. How to figure gyrator treble boost gain
  24. AirTight ATC-2 Preamp Pictures
  25. Need help with the NE5543N opamp
  26. help building a crossover/lowpass filter
  27. Poles and throws?
  28. DC buildup in Linkwitz Transform
  29. BOZ (bride of Zen) advices asked - things to do/avoid
  30. DIY STEREO MIC-PREAMP for DSLR-Video
  31. Adjustable Linkwitz-Riley filter: Help needed with SPICE
  32. Variable active high pass filter .
  33. What advantage to use OP to summing signal ?
  34. Transformer malfunction??'
  35. Fader Penny Giles and Active Level control
  36. Is this filtering really needed ?
  37. Need help with ebay PHONO TURNTABLE PREAMP PREAMPLIFIER PCB DIY KIT
  38. Balanced vs Unbalanced -Basics
  39. Humorous mistake in Douglas Self Active Crossovers book
  40. preamp and tone control circuit with pcb
  41. Noisy 'clickless' analogue switches
  42. Preamp needed, or am I missing something?
  43. Volume Control Clicks
  44. Audio Research SP-10 Clone HELP please
  45. Selector switch
  46. repairing/recycling RCA cable
  47. Klimo Merlin rebuilding
  48. Analog Signal to fire Contact Closure
  49. Cello Palette Style EQ Design (was High End Tone Control)...
  50. LDR attenuators - Better balance with DC bias
  51. Acoustic Guitar Pre/Comp/EQ/Blender/DI
  52. Where is the point of diminishing returns with caps in passive crossovers?
  53. Preamp output protection
  54. Lexicon Master Re-boot?
  55. Grounding in balanced passive pre?
  56. Preamp knob where to buy...
  57. Transcendent Sound GG help
  58. Signal level
  59. Advice on a simple preamp
  60. Balanced and Unbalanced signals in a Control Room Monitor
  61. Audio Delay Circuit
  62. Shielded Umbilical Question
  63. TEAC 80-8 head spec
  64. DC on Lightspeed-attenuator possible
  65. DC on Lightspeed-attenuator possible
  66. Light Dependant Resistor Current Control
  67. Broskie Unbalancer - manual query?
  68. Op-amp Guilt feel.
  69. simple active crossover
  70. Attenuation Versus Gain
  71. fake signal to bypassed inserts
  72. How to Mult (aka split) a line signal into 8 identical buffered outputs... properly!
  73. Mic preamp
  74. Silicon Chip Pre-amp not switching inputs
  75. Making a very simple volume control
  76. consumer --- > commercial
  77. Need advice isolating subwoofer channel from main L/R channels.
  78. What type of diode should i use in this circuit?
  79. Plz advise on balanced pot wiring
  80. Protecting my amp during circuit tests
  81. Pre amp output shorted?
  82. 4 channel mixer circuit?
  83. Wiring a Pot
  84. How to make a phase inverter?
  85. line level volume control
  86. Equalizer
  87. RL passive high pass line level filter
  88. Denon D-75 & diy plinth
  89. Many questions on mhennessy's Hi-Fi preamp (mainly about power-fail detect circuit)
  90. LF03 discrete opamp
  91. passive line level filter question
  92. DIC Integrated amplifier - seventies
  93. Sound Quality on Unity gain opamp
  94. PGA2310 Line Preamplifier + Free Software
  95. Remotely Controlled Motorized Volume Pot.
  96. Preamp Kit - New DIY'er
  97. Pre-Amp Mods - Suggestions
  98. why not use quarter inch stereo jacks for connecting hifi
  99. BSG Technologies QOL "Signal Completion Stage"
  100. What is the best use of 12AT7?
  101. Popping noise on input selector switch
  102. 3 TRS in, 3 TRS out, 1 knob volume.
  103. Fostex Volume Control "PC1EX" - Schematic wanted
  104. Schematic Focusrite Octopre??
  105. multichannel volume control
  106. JC-80 eBay PCBs & Power Train
  107. Parametric EQ values?
  108. Recommend a first diy phono pre-amp?
  109. Phono problems one side working
  110. TL071 question
  111. Forte F44 preamp, DC Voltage leak
  112. To build a high pass RL line level filter
  113. If You Don't Have a SIT, Fake It...
  114. 3 core audio cable
  115. Another Remote Alps
  116. matching sine wave wave file / expert opinion
  117. Can a delay circuit be beneficial between bass and mids?
  118. Exponential programmable resistor
  119. Balanced interconnect with 2 x 75 ohm coax cables?
  120. Volume Control Kit/Controller to work with WMCE-remotes
  121. cs3318 and arduino
  122. Anyone knows if Khozmo guy is still around
  123. What kind of connector is this and how can it be fixed?
  124. "8 ohm 3 way x-over" mod for 4ohm woofer ?
  125. 6SN7 Tube pre
  126. 2 channel to 7.1
  127. Pass Aleph L1.2
  128. Chinese mini VU Meters
  129. Three opamp 24db/oct crossover?
  130. Parametric EQ for subwoofer?
  131. Kit or Behringer ?
  132. Redesigning a cheap obsolete 8-track pre-amp.
  133. Help with circuit for preamp with eq and balanced output powered by phantom power
  134. Inexspensive volume control chips
  135. Linkwitz ASP Custom Build
  136. Shielded cable or faraday cage or both?
  137. Upgraded opamp in preamp and now there is a hum/buzz
  138. GFP-555
  139. mic tube preamp as line stage
  140. AV / HT Preamp
  141. audio matrix
  142. mic pre application buffer op-amp question
  143. Does this preamp look any good?
  144. Replacement for LM833 in active crossover
  145. Not another project yet
  146. RJM Audio B-Board Project
  147. Cause of weak Preamp channel
  148. Schematic Boston PV700
  149. discrete op amp
  150. Resistor between line out and GND: what for?
  151. Recap Rotel RC1070
  152. Speaker selector / level equalizer?
  153. Voltage Readings Following Soldering Error
  154. Selector switch - replacement - shielded wire?
  155. Frequency Response of WW Pots?
  156. Passive pre, adding buffers
  157. AI Modulus preamp...heat damage?
  158. auto level control for input
  159. Which opamp in this preamp circuit?
  160. Audio Pre Amplifier
  161. Cotton OCC 5N Silver Interconnect Cables
  162. Mic Preamp output protection
  163. Krell KAV-250cd Output stage drawn
  164. Stereo to Mono Circuit: need help with capacitor
  165. AD797 Preamp based on stolen trademark
  166. Solderless RCA plugs for DIY interconnects
  167. options for source selector/volume control <100/$150
  168. Pre Amp with pre-out for Arjen Helder Ta2020
  169. Cables: different YES - better ???
  170. Arcam AV9 processor
  171. Looking for unbalanced to balanced transformer
  172. Frequency cut out switches. Graphic EQ.
  173. Stepped attenuator ?
  174. active tri line splitter using BJT transistor
  175. Neotech UPOCC Silver vs HGA Silver
  176. All In One Mixer/PC Project
  177. Sweep Eq
  178. Methods of Handling Various Devices and Grounding - Ground Loop Issues
  179. In-depth analysis of effect of high-quality interconnects
  180. Universal FET buffer / preamplifier
  181. Simple Pre-Amp with Variable High-Pass - This right?
  182. How to derermine the optimum bias resistor value ?
  183. output inductor?
  184. RGB LEDs amp audio level
  185. installing an analog audio output jack on a television?
  186. Help needed for Krell krs-1a preamp
  187. power conditioner project anyone ??
  188. DQ-LP1 Help
  189. upgrading active xover with LM4562
  190. 48VDC Phantom Power switch - seeking advice
  191. Rotel RTC-970 - Remote Controller RR970
  192. bi-amp'd, with passive mid/high ??
  193. Interesting Interconnect Cables
  194. Hum in RC cable
  195. Help for upgrading Pioneer receiver
  196. My attempt at a Monitor Volume Control with headphone outs
  197. Pumpkin Problems
  198. Rod Elliot - Audio Mixing Console (HELP!!)
  199. looking for a 3 way active crossover for diy powered speaker
  200. RFI woes
  201. need info on preamps for use on baf1
  202. Mixer Channel for observation
  203. Help With Existing Crossover Points
  204. stepped aattenuator - stop pops
  205. Adcom GFP-565 Input Selector
  206. Subsonic Filters & Film Caps
  207. DIY build of the Pioneer C-21 preamplifier
  208. Preamplifier with integrated circuits
  209. mixer circuits (looking for simple, but very high quality)...
  210. Subwoofer circuit: Going from speaker level to line level
  211. Adding Phantom Power to old board?
  212. Designing a versatile pre with balanced and unbalanced in/out
  213. Help Pls - Coupling Capacitor
  214. How to pick a good audio transistor?
  215. Volume control question
  216. Loudness stage
  217. Electret microphone Pre-amp
  218. Gold pin tube : does it really matters ?
  219. Mic preamp and high/low impedance technical question
  220. Studiomaster 16 x 4 Console
  221. Portable EQ? - Battery Power & SMALL
  222. DIY Tube Equalizer
  223. Using INA217 for Microphone Pre-amp
  224. Here's my DIY passive attenuator / pre / integrated DAC
  225. Basic questions on passive line-level XOs and with bi-amping
  226. Perreaux SM2 Custom
  227. Luxman A522 tonearm?
  228. passive switcher/splitter for monitor controller
  229. XO Components
  230. balanced to unbalanced convertor
  231. CD vs LP
  232. Stan Curtis site
  233. Counterpoint 5.1 Issue
  234. Ebay preamp FET
  235. Some help with high end input selector.
  236. Crossover help!!
  237. Help With Crossover 3-Way Seas 9.1 Home Theater
  238. Simple, good quality equalizer?
  239. Passive Balanced switching and Relay questions!!
  240. Preout mod
  241. remote control unit
  242. Schematic For Vendetta Xover
  243. One of best sounded Line Pre-/RIAA Head Amp from PureAudio-who have heard ?
  244. LDR att. L+R imbalance?
  245. Schematics needed for 3V 1KHz Sine wave generator
  246. is this a balanced input preamp? help m please?
  247. Copland CTA305 schematic
  248. just got a B&K CS-117, lets take a look inside...
  249. Diamond buffer kits any good for preamp?
  250. Analog Multichannel like ProLogic and ProLogic 2 (II) which professional Models

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