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  1. Build a high pass filter for amplifier
  2. Critique on success of this subwoofer cutoff project?
  3. Need gain AMOUNT for mobile phone/pc sources
  4. re-replacing 2sk213/j76 transistors help
  5. Preventing crossover between mixers
  6. RCA LMI- 32215 A - for recording studio.
  7. Rane pot help please...
  8. Simple low voltage tube preamp stage
  9. HELP me design a discrete current sinking positive V regulator
  10. True Biamping and Active crossovers info request
  11. Question about hypex balanced vs unbalanced
  12. Soundcraftsmen
  13. very small noob question project 88
  14. Help with cable conundrum!
  15. P7 Pre amp Trouble
  16. Party-line / Full-duplex intercom - mixing audio signals
  17. ZSP1 preamp gain
  18. Acurus L10 Powersupply
  19. Building an Analog to Digital Converter Unit...
  20. DIY pre amp board
  21. Opamp power bypass
  22. Tone Control - Volatage range for TL072/LF252-N
  23. Stereo volume attenuation
  24. Quad channel volume control
  25. Work? L, R RCA inputs -> 1 XLR out?
  26. Impedance matching pre -> power.
  27. LME49740 vs TL074, design considerations and stability
  28. Solid state R2R attenuator using analog switches or multiplying DAC
  29. MF nuvista source selector problem again
  30. What do we think about solid-state potentiometers?
  31. TubeCAD's ACF2 as a active crossover
  32. Phaseca--My new diy pre amp
  33. looking for bass treble pcb pattern
  34. Mobile recording using linein
  35. [Need] simple preamp and LPF based on 5532 for digital sources
  36. wall-based trasformer volume control as passive pre?
  37. noob stab in the dark - riaa preamp
  38. Oscillating Op-Amp
  39. Preamp for shotgun mic
  40. Mark Levinson No 38, Need Help
  41. Help! Kenwood Basic C-2 left channel out (phono only)
  42. Signal delay schematic
  43. Adding 4 channels to a 2 channel input on HT amp
  44. vumeter (stereo, mono)
  45. Acquired Some Elan Components, What are They?
  46. Pre-mix for boombox
  47. Reed Switch Audio Attenuator
  48. "Balanced" PGA2311?
  49. 2 way crossover on Chinese pcbs
  50. SE to Balanced pre question
  51. Interconnect Ground Cable Ground Loops
  52. PGA2310 - PGA2311 - CS3310: version without OPAMP for outdoor OPAmp connection wanted
  53. Any AIKIDO-philes who know why Broskie has changed the formula
  54. One More Overcomplicated Mic Preamp
  55. Problems with subwoofer phase control picking up noise
  56. IC's get hammered
  57. Left/Right channel balance control
  58. Potentiometer Selection
  59. All-In-One Preamp Circuit
  60. Line level mixing
  61. Booze Hounds Labs Phono any good?
  62. PLLXO - Am I doing this right?
  63. Need an Active 2nd Order Low Shelf Filter aka Low Shelving Filter
  64. Switching Noise Between Preamps
  65. Bluetooth Lightspeed attenuator
  66. Help getting 5.1 preamp from Ebay repaired please!
  67. Should using balanced cables to amplified monitors improve sound ?
  68. Apox Audio preamp reborn with the power of Arduino
  69. Does an Op Amp Voltage Follower Operate in Class A?
  70. My boozehound phono stage build
  71. Pre amp kit
  72. balanced preamplifier based on LME49990
  73. Merging two channels with passive low passes
  74. Old Colony Sound Lab T-2D Line Amp - Any Info?
  75. Impedance Bridging and Isolation Tranformer
  76. TDA7315 chip parameters interpretation
  77. MFP-102 N fet compatibility
  78. What is the effect of a 22K res in series with a 25K volume pot?
  79. Senior Project: Bandpass Equalizer pedal
  80. [WANTED] Mark Levinson No 26S Service Manual/Schematic
  81. ORTF is best for stereo recording
  82. A zero impedance preamp and CMRR
  83. good preamp
  84. calculate crossover with Re or impedance ?
  85. Op-Amp Preamp Circuit for Electret Mic
  86. Simple Router (then bass management)
  87. Second order shelving filter
  88. Help with component selection.
  89. passive to tame 8khz peak
  90. Hafler SE100 Preamplifier / Symmetric B1 buffer hybrid
  91. Adcom GFP-750 -Needs Repair
  92. Variable gain op-amp for volume control (vs normal voltage divider pot)
  93. Germanium Transistor and FET opamp
  94. 5 zone preamp based on Arduino controlled optocoupler
  95. How to select the right impedance for volume control
  96. In vehicle Pre-amp for mic (12+ VDC)
  97. Resistor-Diode-Relay Logic Source Selector
  98. 3 into 1 input the other way round
  99. Nagging Ground Issue
  100. Looking for Princeton Applied Research 115 MANUAL
  101. Active Band Pass Filter with +/- Gain
  102. Components source
  103. Guitar ABY or Headphone Amplifier?
  104. rod elliot p88 preamp knob arrangment
  105. C-Mos opamps in audio preamplifiers
  106. Cheap, balanced XLR passive pre?
  107. DIY crossover - Sallen-Key?
  108. Hafler 915 preamp cap question
  109. analog 3.5mm to digital usb possible?
  110. Mixer Pre-amp
  111. DIY tube preamp - help with choosing the right kit
  112. opamp channels mysteriously mixing ¿quantum thing or me too dumb?
  113. MC-22 schematic question
  114. unbalanced/balanced to balanced converter
  115. My line buffer preamp
  116. Attenuating Preamp Filter Question
  117. biamping with one DAC
  118. Audiophile active crossover
  119. adding EQ without screwing up sound; few questions...
  120. SSTART Pcb and power supply project
  121. Help with a simple envelop detector filter. (averaging the signal)
  122. audio output switch? Monitor Controller
  123. Very simple volume control with IR remote
  124. JFETs and MOSFETs biasing questions
  125. I need advise on audio mixing boards?
  126. pre amp output
  127. OPA134 Amp Help
  128. OPA134
  129. Capacitors voltage rating
  130. Capacitors voltage rating
  131. attenuation on dac output with U-pad
  132. passive preamp
  133. preamp necessary?
  134. Will phono pre > passive pre > amp work well enough?
  135. 60Hz hum problem, please help
  136. distortion cancellation for diode limiter
  137. electret mic preamp for micro ADC
  138. Understanding "Voltage - Input Offset" Parameter
  139. Schade MOSFET + Feedback Line Amp
  140. Preamp or receiver?
  141. Sony BX-270 Datasheet Wanted
  142. Classe Audio DR6 Bias
  143. Dual gang potentiometer for 'mixer'
  144. Aikido Preamp Bass & Treble Controls
  145. Tried active crossover, mean hum...
  146. How to use TDA7439 for center and subwoofer
  147. Active notch filter
  148. simple pre amp volume control with seperate mono out
  149. Help me wire up my SUT correctly (Tamura TKS-27)
  150. How can I split a mixer bus?
  151. Beau's Bias Circuit Schematic
  152. What should be included in a subwoofer lowpass filter?
  153. Potentiometer volume control treble loss bleed
  154. Adcom GFP 815 Pre Amp-Any users?
  155. speaker out to preamp out while driving speaker
  156. 6dB Active crossover
  157. Replacing volume pot from 100K to 50K reduces gain?
  158. Dual Ganged Stereo Volume Control
  159. McIntosh/Conrad Johnson pairing
  160. Input Impedance Question
  161. Active studio monitors/ crossovers
  162. new discrete opamp for line preamplifier
  163. Music Angel Pre Amp
  164. Tilt Equalizer Filter
  165. Parametric EQ based bass boost circuit
  166. Power On Delay/Loss of AC Detector Relay
  167. Balanced Line Driver with DRV134
  168. PGA3211 6.1 assembling
  169. PGA2311 code
  170. SMD High-Voltage Discrete Diamond Buffer
  171. How best to implement image mode controls
  172. Preamp has unwanted delay (and hum)
  173. Pot values in LM1036 preamp circuit
  174. simple three steps attenuator
  175. Behringer Eurorack UB1622fx PRO schematic
  176. Need help with Coustic XM-5e Crossover
  177. Small Fader + Volume control for Car
  178. PGA2311 Evaluation
  179. Are these pots what I need for my preamp?
  180. IR Remote Control
  181. That Corporation 1200 , 1203 , 1206 circuits
  182. portable set field mixer/ mic pre
  183. Compact simple EQ
  184. Digitally controlled pot distortion?
  185. Help me Choose Between A and B
  186. Quad Eight Electronics EQ712
  187. Adding a line level output to PGA2311 preamp
  188. Using Joachim Gerhard Filter Buffers as balanced crossover
  189. Impedance measuring jig and iSEMcon kit
  190. LM1036N Potentiometer Type
  191. 4558d
  192. 10M45 as simple preamp...
  193. Kenwood c-2 balance pot
  194. Attenuator Impedance for Adcom GFA-535?
  195. McIntosh C712 Preamplifier - Schematic wanted
  196. Speaker Combination in Custom Installation, please help
  197. 5 band equalizer, need help!!
  198. Parasound P/HP-850 Preamp Problem
  199. Crossover between pre and power amp for sub
  200. miniDSP pre-amp & volume control idea
  201. Klark Teknik Upgrae for 2ch
  202. signal level
  203. THAT 1200 Balaced Receiver IC?
  204. Patch Bay With Buffered Splitter/Channel Inputs Ideas
  205. Can't seem to get OpAmps to work
  206. Yamaha Equalizer 1027 service manual wanted
  207. Yamaha RX-V480 Tuner / FM Bands Wacky
  208. Discrete MOSFET 12db High Pass Filter
  209. ESP Proyect97 PCB
  210. Christmas Project - Audio Analyser
  211. HELP : what wattage for resistor ?
  212. x'over for a sub?
  213. Overlay stereo with mono, without losing stereo?
  214. Hi Level Amp output connect to RCA input
  215. Uneven Hafler 110 output
  216. Preamp-Buffers - simple idea
  217. OPA1612 compared to OPA2228(and a lil question about caps)
  218. How to wire up Audio Matching Transformer?
  219. VU meter arduino project help
  220. 8ch ADC
  221. Passive mixing network -- calculating total loss?
  222. DIY 3 way active crossover: as Christmas Holiday Project
  223. Upgrading the SM Pro AUDIO DI 4V
  224. fully balanced line with THAT 1206 plus 1646
  225. GHOST in 3 band graphic equalizer!! SOS!
  226. Weak bass problem...
  227. Please help me to debug the Lighter Note Attenuator
  228. Yet another remote volume control
  229. Questions about AC coupling and opamp biasing
  230. Request for Guides/Explanation Regarding Audio Mixer Circuits
  231. Preamp mod with a low cut shelf filter
  232. Linn Kairn repair
  233. Filter Bass and treble to the input of a microprocessor
  234. unbalanced to balanced 4 ch kit
  235. I need a super bass tone control
  236. Active Crossover for Open Baffle 2-way
  237. Simplist and tiniest PGA2320 kit out there?
  238. Impedance matching and 30dB drop
  239. Are there many people using BNC out there? or RG6 Quad Shield?
  240. output level of dvd playre?
  241. Suggestions for dual PS
  242. Yet Another IR Remote Volume Controller? No, I want one WITHOUT uC
  243. best balanced volume control solution ?
  244. help with muting relay
  245. Need help: Input selector control for 6 channels
  246. Opamp rollers and fiddlers this is for you.
  247. Good quality active preamp
  248. Convert mini Pre-amp from AC to DC power
  249. Volume control, Evil Mad Scientist style
  250. McIntosh C28 With Bad Transformer

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