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  1. Poll for the participants of "John Curl's Blowtorch preamplifier part II"
  2. John Bowers Active Control Unit preamp: Info sought
  3. Looking for pointers on first DIY preamp please.
  4. Simple analog vu-meter driver ?
  5. Please pardon the noob question. need guidance
  6. Build a high pass filter for amplifier
  7. Critique on success of this subwoofer cutoff project?
  8. Need gain AMOUNT for mobile phone/pc sources
  9. re-replacing 2sk213/j76 transistors help
  10. Preventing crossover between mixers
  11. RCA LMI- 32215 A - for recording studio.
  12. Rane pot help please...
  13. Simple low voltage tube preamp stage
  14. HELP me design a discrete current sinking positive V regulator
  15. True Biamping and Active crossovers info request
  16. Question about hypex balanced vs unbalanced
  17. Soundcraftsmen
  18. very small noob question project 88
  19. Help with cable conundrum!
  20. P7 Pre amp Trouble
  21. Party-line / Full-duplex intercom - mixing audio signals
  22. ZSP1 preamp gain
  23. Acurus L10 Powersupply
  24. Building an Analog to Digital Converter Unit...
  25. DIY pre amp board
  26. Opamp power bypass
  27. Tone Control - Volatage range for TL072/LF252-N
  28. Stereo volume attenuation
  29. Quad channel volume control
  30. Work? L, R RCA inputs -> 1 XLR out?
  31. Impedance matching pre -> power.
  32. LME49740 vs TL074, design considerations and stability
  33. Solid state R2R attenuator using analog switches or multiplying DAC
  34. MF nuvista source selector problem again
  35. What do we think about solid-state potentiometers?
  36. TubeCAD's ACF2 as a active crossover
  37. Phaseca--My new diy pre amp
  38. looking for bass treble pcb pattern
  39. Mobile recording using linein
  40. [Need] simple preamp and LPF based on 5532 for digital sources
  41. wall-based trasformer volume control as passive pre?
  42. noob stab in the dark - riaa preamp
  43. Oscillating Op-Amp
  44. Preamp for shotgun mic
  45. Mark Levinson No 38, Need Help
  46. Help! Kenwood Basic C-2 left channel out (phono only)
  47. Signal delay schematic
  48. Adding 4 channels to a 2 channel input on HT amp
  49. vumeter (stereo, mono)
  50. Acquired Some Elan Components, What are They?
  51. Pre-mix for boombox
  52. Reed Switch Audio Attenuator
  53. "Balanced" PGA2311?
  54. 2 way crossover on Chinese pcbs
  55. SE to Balanced pre question
  56. Interconnect Ground Cable Ground Loops
  57. PGA2310 - PGA2311 - CS3310: version without OPAMP for outdoor OPAmp connection wanted
  58. Any AIKIDO-philes who know why Broskie has changed the formula
  59. One More Overcomplicated Mic Preamp
  60. Problems with subwoofer phase control picking up noise
  61. IC's get hammered
  62. Left/Right channel balance control
  63. Potentiometer Selection
  64. All-In-One Preamp Circuit
  65. Line level mixing
  66. Booze Hounds Labs Phono any good?
  67. PLLXO - Am I doing this right?
  68. Need an Active 2nd Order Low Shelf Filter aka Low Shelving Filter
  69. Switching Noise Between Preamps
  70. Bluetooth Lightspeed attenuator
  71. Help getting 5.1 preamp from Ebay repaired please!
  72. Should using balanced cables to amplified monitors improve sound ?
  73. Apox Audio preamp reborn with the power of Arduino
  74. Does an Op Amp Voltage Follower Operate in Class A?
  75. My boozehound phono stage build
  76. Pre amp kit
  77. balanced preamplifier based on LME49990
  78. Merging two channels with passive low passes
  79. Old Colony Sound Lab T-2D Line Amp - Any Info?
  80. Impedance Bridging and Isolation Tranformer
  81. TDA7315 chip parameters interpretation
  82. MFP-102 N fet compatibility
  83. What is the effect of a 22K res in series with a 25K volume pot?
  84. Senior Project: Bandpass Equalizer pedal
  85. [WANTED] Mark Levinson No 26S Service Manual/Schematic
  86. ORTF is best for stereo recording
  87. A zero impedance preamp and CMRR
  88. good preamp
  89. calculate crossover with Re or impedance ?
  90. Op-Amp Preamp Circuit for Electret Mic
  91. Simple Router (then bass management)
  92. Second order shelving filter
  93. Help with component selection.
  94. passive to tame 8khz peak
  95. Hafler SE100 Preamplifier / Symmetric B1 buffer hybrid
  96. Adcom GFP-750 -Needs Repair
  97. Variable gain op-amp for volume control (vs normal voltage divider pot)
  98. Germanium Transistor and FET opamp
  99. 5 zone preamp based on Arduino controlled optocoupler
  100. How to select the right impedance for volume control
  101. In vehicle Pre-amp for mic (12+ VDC)
  102. Resistor-Diode-Relay Logic Source Selector
  103. 3 into 1 input the other way round
  104. Nagging Ground Issue
  105. Looking for Princeton Applied Research 115 MANUAL
  106. Active Band Pass Filter with +/- Gain
  107. Components source
  108. Guitar ABY or Headphone Amplifier?
  109. rod elliot p88 preamp knob arrangment
  110. C-Mos opamps in audio preamplifiers
  111. Cheap, balanced XLR passive pre?
  112. DIY crossover - Sallen-Key?
  113. Hafler 915 preamp cap question
  114. analog 3.5mm to digital usb possible?
  115. Mixer Pre-amp
  116. DIY tube preamp - help with choosing the right kit
  117. opamp channels mysteriously mixing ¿quantum thing or me too dumb?
  118. MC-22 schematic question
  119. unbalanced/balanced to balanced converter
  120. My line buffer preamp
  121. Attenuating Preamp Filter Question
  122. biamping with one DAC
  123. Audiophile active crossover
  124. adding EQ without screwing up sound; few questions...
  125. SSTART Pcb and power supply project
  126. Help with a simple envelop detector filter. (averaging the signal)
  127. audio output switch? Monitor Controller
  128. Very simple volume control with IR remote
  129. JFETs and MOSFETs biasing questions
  130. I need advise on audio mixing boards?
  131. pre amp output
  132. OPA134 Amp Help
  133. OPA134
  134. Capacitors voltage rating
  135. Capacitors voltage rating
  136. attenuation on dac output with U-pad
  137. passive preamp
  138. preamp necessary?
  139. Will phono pre > passive pre > amp work well enough?
  140. 60Hz hum problem, please help
  141. distortion cancellation for diode limiter
  142. electret mic preamp for micro ADC
  143. Understanding "Voltage - Input Offset" Parameter
  144. Schade MOSFET + Feedback Line Amp
  145. Preamp or receiver?
  146. Sony BX-270 Datasheet Wanted
  147. Classe Audio DR6 Bias
  148. Dual gang potentiometer for 'mixer'
  149. Aikido Preamp Bass & Treble Controls
  150. Tried active crossover, mean hum...
  151. How to use TDA7439 for center and subwoofer
  152. Active notch filter
  153. simple pre amp volume control with seperate mono out
  154. Help me wire up my SUT correctly (Tamura TKS-27)
  155. How can I split a mixer bus?
  156. Beau's Bias Circuit Schematic
  157. What should be included in a subwoofer lowpass filter?
  158. Potentiometer volume control treble loss bleed
  159. Adcom GFP 815 Pre Amp-Any users?
  160. speaker out to preamp out while driving speaker
  161. 6dB Active crossover
  162. Replacing volume pot from 100K to 50K reduces gain?
  163. Dual Ganged Stereo Volume Control
  164. McIntosh/Conrad Johnson pairing
  165. Input Impedance Question
  166. Active studio monitors/ crossovers
  167. new discrete opamp for line preamplifier
  168. Music Angel Pre Amp
  169. Tilt Equalizer Filter
  170. Parametric EQ based bass boost circuit
  171. Power On Delay/Loss of AC Detector Relay
  172. Balanced Line Driver with DRV134
  173. PGA3211 6.1 assembling
  174. PGA2311 code
  175. SMD High-Voltage Discrete Diamond Buffer
  176. How best to implement image mode controls
  177. Preamp has unwanted delay (and hum)
  178. Pot values in LM1036 preamp circuit
  179. simple three steps attenuator
  180. Behringer Eurorack UB1622fx PRO schematic
  181. Need help with Coustic XM-5e Crossover
  182. Small Fader + Volume control for Car
  183. PGA2311 Evaluation
  184. Are these pots what I need for my preamp?
  185. IR Remote Control
  186. That Corporation 1200 , 1203 , 1206 circuits
  187. portable set field mixer/ mic pre
  188. Compact simple EQ
  189. Digitally controlled pot distortion?
  190. Help me Choose Between A and B
  191. Quad Eight Electronics EQ712
  192. Adding a line level output to PGA2311 preamp
  193. Using Joachim Gerhard Filter Buffers as balanced crossover
  194. Impedance measuring jig and iSEMcon kit
  195. LM1036N Potentiometer Type
  196. 4558d
  197. 10M45 as simple preamp...
  198. Kenwood c-2 balance pot
  199. Attenuator Impedance for Adcom GFA-535?
  200. McIntosh C712 Preamplifier - Schematic wanted
  201. Speaker Combination in Custom Installation, please help
  202. 5 band equalizer, need help!!
  203. Parasound P/HP-850 Preamp Problem
  204. Crossover between pre and power amp for sub
  205. miniDSP pre-amp & volume control idea
  206. Klark Teknik Upgrae for 2ch
  207. signal level
  208. THAT 1200 Balaced Receiver IC?
  209. Patch Bay With Buffered Splitter/Channel Inputs Ideas
  210. Can't seem to get OpAmps to work
  211. Yamaha Equalizer 1027 service manual wanted
  212. Yamaha RX-V480 Tuner / FM Bands Wacky
  213. Discrete MOSFET 12db High Pass Filter
  214. ESP Proyect97 PCB
  215. Christmas Project - Audio Analyser
  216. HELP : what wattage for resistor ?
  217. x'over for a sub?
  218. Overlay stereo with mono, without losing stereo?
  219. Hi Level Amp output connect to RCA input
  220. Uneven Hafler 110 output
  221. Preamp-Buffers - simple idea
  222. OPA1612 compared to OPA2228(and a lil question about caps)
  223. How to wire up Audio Matching Transformer?
  224. VU meter arduino project help
  225. 8ch ADC
  226. Passive mixing network -- calculating total loss?
  227. DIY 3 way active crossover: as Christmas Holiday Project
  228. Upgrading the SM Pro AUDIO DI 4V
  229. fully balanced line with THAT 1206 plus 1646
  230. GHOST in 3 band graphic equalizer!! SOS!
  231. Weak bass problem...
  232. Please help me to debug the Lighter Note Attenuator
  233. Yet another remote volume control
  234. Questions about AC coupling and opamp biasing
  235. Request for Guides/Explanation Regarding Audio Mixer Circuits
  236. Preamp mod with a low cut shelf filter
  237. Linn Kairn repair
  238. Filter Bass and treble to the input of a microprocessor
  239. unbalanced to balanced 4 ch kit
  240. I need a super bass tone control
  241. Active Crossover for Open Baffle 2-way
  242. Simplist and tiniest PGA2320 kit out there?
  243. Impedance matching and 30dB drop
  244. Are there many people using BNC out there? or RG6 Quad Shield?
  245. output level of dvd playre?
  246. Suggestions for dual PS
  247. Yet Another IR Remote Volume Controller? No, I want one WITHOUT uC
  248. best balanced volume control solution ?
  249. help with muting relay
  250. Need help: Input selector control for 6 channels

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