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  1. HOW TO MEASURE interference between e.g. 20kHz and 21kHz tones?
  2. 3-way signal splitter
  3. implimenting linkwitz's notch/dip filter for room eq
  4. Anyone seen this EQ before?
  5. ReCapping marantz av-9000 16v 13000uf
  6. Audio Processing
  7. Anyone know what these caps are for?
  8. Is coax needed to wire a microphone?
  9. How do I choose a preamplifier that would be compatible with this microphone?
  10. W06M – Bridge Rectifier, equivalent substitute
  11. Preamplifier kit information
  12. Handling +4dBu/-10dBv and un/balanced
  13. Line receiver and driver pcb?
  14. 2 conductor shielded cable
  15. HIGHLEVEL INPUT IN PLATE AMP!
  16. 20hz high pass on Ashly XR2000 - removable?
  17. Transformer Based Balanced Output & Impedance
  18. Poll for the participants of "John Curl's Blowtorch preamplifier part II"
  19. John Bowers Active Control Unit preamp: Info sought
  20. Looking for pointers on first DIY preamp please.
  21. Simple analog vu-meter driver ?
  22. Please pardon the noob question. need guidance
  23. Build a high pass filter for amplifier
  24. Critique on success of this subwoofer cutoff project?
  25. Need gain AMOUNT for mobile phone/pc sources
  26. re-replacing 2sk213/j76 transistors help
  27. Preventing crossover between mixers
  28. RCA LMI- 32215 A - for recording studio.
  29. Rane pot help please...
  30. Simple low voltage tube preamp stage
  31. HELP me design a discrete current sinking positive V regulator
  32. True Biamping and Active crossovers info request
  33. Question about hypex balanced vs unbalanced
  34. Soundcraftsmen
  35. very small noob question project 88
  36. Help with cable conundrum!
  37. P7 Pre amp Trouble
  38. Party-line / Full-duplex intercom - mixing audio signals
  39. ZSP1 preamp gain
  40. Acurus L10 Powersupply
  41. Building an Analog to Digital Converter Unit...
  42. DIY pre amp board
  43. Opamp power bypass
  44. Tone Control - Volatage range for TL072/LF252-N
  45. Stereo volume attenuation
  46. Quad channel volume control
  47. Work? L, R RCA inputs -> 1 XLR out?
  48. Impedance matching pre -> power.
  49. LME49740 vs TL074, design considerations and stability
  50. Solid state R2R attenuator using analog switches or multiplying DAC
  51. MF nuvista source selector problem again
  52. What do we think about solid-state potentiometers?
  53. TubeCAD's ACF2 as a active crossover
  54. Phaseca--My new diy pre amp
  55. looking for bass treble pcb pattern
  56. Mobile recording using linein
  57. [Need] simple preamp and LPF based on 5532 for digital sources
  58. wall-based trasformer volume control as passive pre?
  59. noob stab in the dark - riaa preamp
  60. Oscillating Op-Amp
  61. Preamp for shotgun mic
  62. Mark Levinson No 38, Need Help
  63. Help! Kenwood Basic C-2 left channel out (phono only)
  64. Signal delay schematic
  65. Adding 4 channels to a 2 channel input on HT amp
  66. vumeter (stereo, mono)
  67. Acquired Some Elan Components, What are They?
  68. Pre-mix for boombox
  69. Reed Switch Audio Attenuator
  70. "Balanced" PGA2311?
  71. 2 way crossover on Chinese pcbs
  72. SE to Balanced pre question
  73. Interconnect Ground Cable Ground Loops
  74. PGA2310 - PGA2311 - CS3310: version without OPAMP for outdoor OPAmp connection wanted
  75. Any AIKIDO-philes who know why Broskie has changed the formula
  76. One More Overcomplicated Mic Preamp
  77. Problems with subwoofer phase control picking up noise
  78. IC's get hammered
  79. Left/Right channel balance control
  80. Potentiometer Selection
  81. All-In-One Preamp Circuit
  82. Line level mixing
  83. Booze Hounds Labs Phono any good?
  84. PLLXO - Am I doing this right?
  85. Need an Active 2nd Order Low Shelf Filter aka Low Shelving Filter
  86. Switching Noise Between Preamps
  87. Bluetooth Lightspeed attenuator
  88. Help getting 5.1 preamp from Ebay repaired please!
  89. Should using balanced cables to amplified monitors improve sound ?
  90. Apox Audio preamp reborn with the power of Arduino
  91. Does an Op Amp Voltage Follower Operate in Class A?
  92. My boozehound phono stage build
  93. Pre amp kit
  94. balanced preamplifier based on LME49990
  95. Merging two channels with passive low passes
  96. Old Colony Sound Lab T-2D Line Amp - Any Info?
  97. Impedance Bridging and Isolation Tranformer
  98. TDA7315 chip parameters interpretation
  99. MFP-102 N fet compatibility
  100. What is the effect of a 22K res in series with a 25K volume pot?
  101. Senior Project: Bandpass Equalizer pedal
  102. [WANTED] Mark Levinson No 26S Service Manual/Schematic
  103. ORTF is best for stereo recording
  104. A zero impedance preamp and CMRR
  105. good preamp
  106. calculate crossover with Re or impedance ?
  107. Op-Amp Preamp Circuit for Electret Mic
  108. Simple Router (then bass management)
  109. Second order shelving filter
  110. Help with component selection.
  111. passive to tame 8khz peak
  112. Hafler SE100 Preamplifier / Symmetric B1 buffer hybrid
  113. Adcom GFP-750 -Needs Repair
  114. Variable gain op-amp for volume control (vs normal voltage divider pot)
  115. Germanium Transistor and FET opamp
  116. 5 zone preamp based on Arduino controlled optocoupler
  117. How to select the right impedance for volume control
  118. In vehicle Pre-amp for mic (12+ VDC)
  119. Resistor-Diode-Relay Logic Source Selector
  120. 3 into 1 input the other way round
  121. Nagging Ground Issue
  122. Looking for Princeton Applied Research 115 MANUAL
  123. Active Band Pass Filter with +/- Gain
  124. Components source
  125. Guitar ABY or Headphone Amplifier?
  126. rod elliot p88 preamp knob arrangment
  127. C-Mos opamps in audio preamplifiers
  128. Cheap, balanced XLR passive pre?
  129. DIY crossover - Sallen-Key?
  130. Hafler 915 preamp cap question
  131. analog 3.5mm to digital usb possible?
  132. Mixer Pre-amp
  133. DIY tube preamp - help with choosing the right kit
  134. opamp channels mysteriously mixing ¿quantum thing or me too dumb?
  135. MC-22 schematic question
  136. unbalanced/balanced to balanced converter
  137. My line buffer preamp
  138. Attenuating Preamp Filter Question
  139. biamping with one DAC
  140. Audiophile active crossover
  141. adding EQ without screwing up sound; few questions...
  142. SSTART Pcb and power supply project
  143. Help with a simple envelop detector filter. (averaging the signal)
  144. audio output switch? Monitor Controller
  145. Very simple volume control with IR remote
  146. JFETs and MOSFETs biasing questions
  147. I need advise on audio mixing boards?
  148. pre amp output
  149. OPA134 Amp Help
  150. OPA134
  151. Capacitors voltage rating
  152. Capacitors voltage rating
  153. attenuation on dac output with U-pad
  154. passive preamp
  155. preamp necessary?
  156. Will phono pre > passive pre > amp work well enough?
  157. 60Hz hum problem, please help
  158. distortion cancellation for diode limiter
  159. electret mic preamp for micro ADC
  160. Understanding "Voltage - Input Offset" Parameter
  161. Schade MOSFET + Feedback Line Amp
  162. Preamp or receiver?
  163. Sony BX-270 Datasheet Wanted
  164. Classe Audio DR6 Bias
  165. Dual gang potentiometer for 'mixer'
  166. Aikido Preamp Bass & Treble Controls
  167. Tried active crossover, mean hum...
  168. How to use TDA7439 for center and subwoofer
  169. Active notch filter
  170. simple pre amp volume control with seperate mono out
  171. Help me wire up my SUT correctly (Tamura TKS-27)
  172. How can I split a mixer bus?
  173. Beau's Bias Circuit Schematic
  174. What should be included in a subwoofer lowpass filter?
  175. Potentiometer volume control treble loss bleed
  176. Adcom GFP 815 Pre Amp-Any users?
  177. speaker out to preamp out while driving speaker
  178. 6dB Active crossover
  179. Replacing volume pot from 100K to 50K reduces gain?
  180. Dual Ganged Stereo Volume Control
  181. McIntosh/Conrad Johnson pairing
  182. Input Impedance Question
  183. Active studio monitors/ crossovers
  184. new discrete opamp for line preamplifier
  185. Music Angel Pre Amp
  186. Tilt Equalizer Filter
  187. Parametric EQ based bass boost circuit
  188. Power On Delay/Loss of AC Detector Relay
  189. Balanced Line Driver with DRV134
  190. PGA3211 6.1 assembling
  191. PGA2311 code
  192. SMD High-Voltage Discrete Diamond Buffer
  193. How best to implement image mode controls
  194. Preamp has unwanted delay (and hum)
  195. Pot values in LM1036 preamp circuit
  196. simple three steps attenuator
  197. Behringer Eurorack UB1622fx PRO schematic
  198. Need help with Coustic XM-5e Crossover
  199. Small Fader + Volume control for Car
  200. PGA2311 Evaluation
  201. Are these pots what I need for my preamp?
  202. IR Remote Control
  203. That Corporation 1200 , 1203 , 1206 circuits
  204. portable set field mixer/ mic pre
  205. Compact simple EQ
  206. Digitally controlled pot distortion?
  207. Help me Choose Between A and B
  208. Quad Eight Electronics EQ712
  209. Adding a line level output to PGA2311 preamp
  210. Using Joachim Gerhard Filter Buffers as balanced crossover
  211. Impedance measuring jig and iSEMcon kit
  212. LM1036N Potentiometer Type
  213. 4558d
  214. 10M45 as simple preamp...
  215. Kenwood c-2 balance pot
  216. Attenuator Impedance for Adcom GFA-535?
  217. McIntosh C712 Preamplifier - Schematic wanted
  218. Speaker Combination in Custom Installation, please help
  219. 5 band equalizer, need help!!
  220. Parasound P/HP-850 Preamp Problem
  221. Crossover between pre and power amp for sub
  222. miniDSP pre-amp & volume control idea
  223. Klark Teknik Upgrae for 2ch
  224. signal level
  225. THAT 1200 Balaced Receiver IC?
  226. Patch Bay With Buffered Splitter/Channel Inputs Ideas
  227. Can't seem to get OpAmps to work
  228. Yamaha Equalizer 1027 service manual wanted
  229. Yamaha RX-V480 Tuner / FM Bands Wacky
  230. Discrete MOSFET 12db High Pass Filter
  231. ESP Proyect97 PCB
  232. Christmas Project - Audio Analyser
  233. HELP : what wattage for resistor ?
  234. x'over for a sub?
  235. Overlay stereo with mono, without losing stereo?
  236. Hi Level Amp output connect to RCA input
  237. Uneven Hafler 110 output
  238. Preamp-Buffers - simple idea
  239. OPA1612 compared to OPA2228(and a lil question about caps)
  240. How to wire up Audio Matching Transformer?
  241. VU meter arduino project help
  242. 8ch ADC
  243. Passive mixing network -- calculating total loss?
  244. DIY 3 way active crossover: as Christmas Holiday Project
  245. Upgrading the SM Pro AUDIO DI 4V
  246. fully balanced line with THAT 1206 plus 1646
  247. GHOST in 3 band graphic equalizer!! SOS!
  248. Weak bass problem...
  249. Please help me to debug the Lighter Note Attenuator
  250. Yet another remote volume control

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