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  1. SP-6 Light with ECC801S
  2. Active crossover help
  3. Line Level Preamp, Using JFETs, in a can.
  4. Replacement push buttons for hafler?
  5. My fuzz pedal project is behaving badly
  6. My fuzz pedal project is behaving badly
  7. Op-amp Upgrade
  8. Output transformers for Line-level signal.
  9. PGA2310 control module
  10. Shields in internally balanced equipment
  11. First effort: MM/MC phono preamp with DC servo
  12. How to figure gyrator treble boost gain
  13. AirTight ATC-2 Preamp Pictures
  14. Need help with the NE5543N opamp
  15. help building a crossover/lowpass filter
  16. Poles and throws?
  17. DC buildup in Linkwitz Transform
  18. BOZ (bride of Zen) advices asked - things to do/avoid
  19. DIY STEREO MIC-PREAMP for DSLR-Video
  20. Adjustable Linkwitz-Riley filter: Help needed with SPICE
  21. Variable active high pass filter .
  22. What advantage to use OP to summing signal ?
  23. Transformer malfunction??'
  24. Fader Penny Giles and Active Level control
  25. Is this filtering really needed ?
  26. Need help with ebay PHONO TURNTABLE PREAMP PREAMPLIFIER PCB DIY KIT
  27. Balanced vs Unbalanced -Basics
  28. Humorous mistake in Douglas Self Active Crossovers book
  29. preamp and tone control circuit with pcb
  30. Noisy 'clickless' analogue switches
  31. Preamp needed, or am I missing something?
  32. Volume Control Clicks
  33. Audio Research SP-10 Clone HELP please
  34. Selector switch
  35. repairing/recycling RCA cable
  36. Klimo Merlin rebuilding
  37. Analog Signal to fire Contact Closure
  38. Cello Palette Style EQ Design (was High End Tone Control)...
  39. LDR attenuators - Better balance with DC bias
  40. Acoustic Guitar Pre/Comp/EQ/Blender/DI
  41. Where is the point of diminishing returns with caps in passive crossovers?
  42. Preamp output protection
  43. Lexicon Master Re-boot?
  44. Grounding in balanced passive pre?
  45. Preamp knob where to buy...
  46. Transcendent Sound GG help
  47. Signal level
  48. Advice on a simple preamp
  49. Balanced and Unbalanced signals in a Control Room Monitor
  50. Audio Delay Circuit
  51. Shielded Umbilical Question
  52. TEAC 80-8 head spec
  53. DC on Lightspeed-attenuator possible
  54. DC on Lightspeed-attenuator possible
  55. Light Dependant Resistor Current Control
  56. Broskie Unbalancer - manual query?
  57. Op-amp Guilt feel.
  58. simple active crossover
  59. Attenuation Versus Gain
  60. fake signal to bypassed inserts
  61. How to Mult (aka split) a line signal into 8 identical buffered outputs... properly!
  62. Mic preamp
  63. Silicon Chip Pre-amp not switching inputs
  64. Making a very simple volume control
  65. consumer --- > commercial
  66. Need advice isolating subwoofer channel from main L/R channels.
  67. What type of diode should i use in this circuit?
  68. Plz advise on balanced pot wiring
  69. Protecting my amp during circuit tests
  70. Pre amp output shorted?
  71. 4 channel mixer circuit?
  72. Wiring a Pot
  73. How to make a phase inverter?
  74. line level volume control
  75. Equalizer
  76. RL passive high pass line level filter
  77. Denon D-75 & diy plinth
  78. Many questions on mhennessy's Hi-Fi preamp (mainly about power-fail detect circuit)
  79. LF03 discrete opamp
  80. passive line level filter question
  81. DIC Integrated amplifier - seventies
  82. Sound Quality on Unity gain opamp
  83. PGA2310 Line Preamplifier + Free Software
  84. Remotely Controlled Motorized Volume Pot.
  85. Preamp Kit - New DIY'er
  86. Pre-Amp Mods - Suggestions
  87. why not use quarter inch stereo jacks for connecting hifi
  88. BSG Technologies QOL "Signal Completion Stage"
  89. What is the best use of 12AT7?
  90. Popping noise on input selector switch
  91. 3 TRS in, 3 TRS out, 1 knob volume.
  92. Fostex Volume Control "PC1EX" - Schematic wanted
  93. Schematic Focusrite Octopre??
  94. multichannel volume control
  95. JC-80 eBay PCBs & Power Train
  96. Parametric EQ values?
  97. Recommend a first diy phono pre-amp?
  98. Phono problems one side working
  99. TL071 question
  100. Forte F44 preamp, DC Voltage leak
  101. To build a high pass RL line level filter
  102. If You Don't Have a SIT, Fake It...
  103. 3 core audio cable
  104. Another Remote Alps
  105. matching sine wave wave file / expert opinion
  106. Can a delay circuit be beneficial between bass and mids?
  107. Exponential programmable resistor
  108. Balanced interconnect with 2 x 75 ohm coax cables?
  109. Volume Control Kit/Controller to work with WMCE-remotes
  110. cs3318 and arduino
  111. Anyone knows if Khozmo guy is still around
  112. What kind of connector is this and how can it be fixed?
  113. "8 ohm 3 way x-over" mod for 4ohm woofer ?
  114. 6SN7 Tube pre
  115. 2 channel to 7.1
  116. Pass Aleph L1.2
  117. Chinese mini VU Meters
  118. Three opamp 24db/oct crossover?
  119. Parametric EQ for subwoofer?
  120. Kit or Behringer ?
  121. Redesigning a cheap obsolete 8-track pre-amp.
  122. Help with circuit for preamp with eq and balanced output powered by phantom power
  123. Inexspensive volume control chips
  124. Linkwitz ASP Custom Build
  125. Shielded cable or faraday cage or both?
  126. Upgraded opamp in preamp and now there is a hum/buzz
  127. GFP-555
  128. mic tube preamp as line stage
  129. AV / HT Preamp
  130. audio matrix
  131. mic pre application buffer op-amp question
  132. Does this preamp look any good?
  133. Replacement for LM833 in active crossover
  134. Not another project yet
  135. RJM Audio B-Board Project
  136. Cause of weak Preamp channel
  137. Schematic Boston PV700
  138. discrete op amp
  139. Resistor between line out and GND: what for?
  140. Recap Rotel RC1070
  141. Speaker selector / level equalizer?
  142. Voltage Readings Following Soldering Error
  143. Selector switch - replacement - shielded wire?
  144. Frequency Response of WW Pots?
  145. Passive pre, adding buffers
  146. AI Modulus preamp...heat damage?
  147. auto level control for input
  148. Which opamp in this preamp circuit?
  149. Audio Pre Amplifier
  150. Mic Preamp output protection
  151. Krell KAV-250cd Output stage drawn
  152. Stereo to Mono Circuit: need help with capacitor
  153. AD797 Preamp based on stolen trademark
  154. Solderless RCA plugs for DIY interconnects
  155. options for source selector/volume control <100/$150
  156. Pre Amp with pre-out for Arjen Helder Ta2020
  157. Cables: different YES - better ???
  158. Arcam AV9 processor
  159. Looking for unbalanced to balanced transformer
  160. Frequency cut out switches. Graphic EQ.
  161. Stepped attenuator ?
  162. active tri line splitter using BJT transistor
  163. Neotech UPOCC Silver vs HGA Silver
  164. All In One Mixer/PC Project
  165. Sweep Eq
  166. Methods of Handling Various Devices and Grounding - Ground Loop Issues
  167. In-depth analysis of effect of high-quality interconnects
  168. Universal FET buffer / preamplifier
  169. Simple Pre-Amp with Variable High-Pass - This right?
  170. How to derermine the optimum bias resistor value ?
  171. output inductor?
  172. RGB LEDs amp audio level
  173. installing an analog audio output jack on a television?
  174. Help needed for Krell krs-1a preamp
  175. power conditioner project anyone ??
  176. DQ-LP1 Help
  177. upgrading active xover with LM4562
  178. 48VDC Phantom Power switch - seeking advice
  179. Rotel RTC-970 - Remote Controller RR970
  180. bi-amp'd, with passive mid/high ??
  181. Interesting Interconnect Cables
  182. Hum in RC cable
  183. Help for upgrading Pioneer receiver
  184. My attempt at a Monitor Volume Control with headphone outs
  185. Pumpkin Problems
  186. Rod Elliot - Audio Mixing Console (HELP!!)
  187. looking for a 3 way active crossover for diy powered speaker
  188. RFI woes
  189. need info on preamps for use on baf1
  190. Mixer Channel for observation
  191. Help With Existing Crossover Points
  192. stepped aattenuator - stop pops
  193. Adcom GFP-565 Input Selector
  194. Subsonic Filters & Film Caps
  195. DIY build of the Pioneer C-21 preamplifier
  196. Preamplifier with integrated circuits
  197. mixer circuits (looking for simple, but very high quality)...
  198. Subwoofer circuit: Going from speaker level to line level
  199. Adding Phantom Power to old board?
  200. Designing a versatile pre with balanced and unbalanced in/out
  201. Help Pls - Coupling Capacitor
  202. How to pick a good audio transistor?
  203. Volume control question
  204. Loudness stage
  205. Electret microphone Pre-amp
  206. Gold pin tube : does it really matters ?
  207. Mic preamp and high/low impedance technical question
  208. Studiomaster 16 x 4 Console
  209. Portable EQ? - Battery Power & SMALL
  210. DIY Tube Equalizer
  211. Using INA217 for Microphone Pre-amp
  212. Here's my DIY passive attenuator / pre / integrated DAC
  213. Basic questions on passive line-level XOs and with bi-amping
  214. Perreaux SM2 Custom
  215. Luxman A522 tonearm?
  216. passive switcher/splitter for monitor controller
  217. XO Components
  218. balanced to unbalanced convertor
  219. CD vs LP
  220. Stan Curtis site
  221. Counterpoint 5.1 Issue
  222. Ebay preamp FET
  223. Some help with high end input selector.
  224. Crossover help!!
  225. Help With Crossover 3-Way Seas 9.1 Home Theater
  226. Simple, good quality equalizer?
  227. Passive Balanced switching and Relay questions!!
  228. Preout mod
  229. remote control unit
  230. Schematic For Vendetta Xover
  231. One of best sounded Line Pre-/RIAA Head Amp from PureAudio-who have heard ?
  232. LDR att. L+R imbalance?
  233. Schematics needed for 3V 1KHz Sine wave generator
  234. is this a balanced input preamp? help m please?
  235. Copland CTA305 schematic
  236. just got a B&K CS-117, lets take a look inside...
  237. Diamond buffer kits any good for preamp?
  238. Analog Multichannel like ProLogic and ProLogic 2 (II) which professional Models
  239. JC-80 eBay PCBs
  240. Connecting many audio output devices to one input device
  241. BBE FJB-200X
  242. Help needed -Electrocompaniet EC4.7 preamp
  243. Improving rejection ratio of subtraction circuit
  244. Delay line for front channel
  245. Wireless analog connection TV -> amp?
  246. Op Amp Rail Splitter Question
  247. Substitution for NEC MuPC812C IC in Nakamichi CA-7A?
  248. Preamp Impedance Question
  249. tone control schematics please
  250. Avoid Potential Groundloop Problems in Headphone Amp

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