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  1. Modding Ecler AC-6 talkover release
  2. ADC Sound Shaper 3 EQ
  3. Schematic wanted for parametric Equalizers from Behringer and IBANEZ
  4. What else? A PGA-preamplifier...
  5. Modding My ADC SS100-SL Equalizer
  6. Preamp Gain for NE5532
  7. Gain regulation on Counterpoint SA3000
  8. Any analog xovers as good as Ashly XR series?
  9. THAT 5171 Controlled By Arduino?
  10. Ground Loop in UREI 1176 compressor
  11. Handling inactive inputs in source selector
  12. How to split output from phono stage
  13. low pass and subsonic filter
  14. BEQ circuit
  15. Adding in RCA Outputs
  16. Wanted: 80Hz Linkwitz-Riley 24hz/octive low-pass filter
  17. Jumper wires & RFI in preamp
  18. Help with component selection for filter
  19. INKEL MX991
  20. Active Crossover Adjustment
  21. CS3318 based preamp - layout
  22. EAD Theatermaster Classic won't operate
  23. filter Q Question
  24. Buffering two signals together
  25. How to bias 2SK170BL in Boozehound Labs phono pre?
  26. Can I make a really simplistic line-level signal go mono one way, stereo in parallel?
  27. Aikido - approximate input impedance
  28. Ultimate analogue tone control or an audiophool overkill? :)
  29. A remote control preamp in the works
  30. Custom Equalizer Design needed
  31. Multichannel preamp
  32. Hafler Iris Preamp balance issue - fixed
  33. Acurus L10 Preamp Mods & Schematic
  34. Home made DSP / FPGA digital audio mixer
  35. Soundcraft LX7 Replacement parts
  36. Bonsai's practical buffer
  37. Help needed with an audio signal splitter solution
  38. Crosstalk?
  39. i want to throw something
  40. Optimizing resistor placement Vishay TX2575
  41. Input impedance of PRE vs sensitivity to disturbance
  42. PIC Controlled PGA 2320 8 Channel Preamp
  43. How to change a degree of volume pot rotation by remote control?
  44. tamura input transformer shield
  45. Need a help: Mark Levinson No26.
  46. LME49720 Pre amp PCB/Kit
  47. Faulty mixer inputs
  48. Basic home cinema wiring advice
  49. Diamond Cascode, a Diamond-like buffer/current booster
  50. Unusual high-pitched whistle caused by my Audio Pre-AMP
  51. Looking to build stereo mixer but can't find many schematics!
  52. Aureus preAmplifier
  53. strange! LM-4562 question
  54. Tube Preamp hummmmmm
  55. LCDuino-1 Processor, using non-latching relays help
  56. CS3318 PCB Layout
  57. Levels in an active three-way system
  58. Source selector using Analog switches or multiplexers - opinions?
  59. Yet another PGA23xx board...
  60. Concentric shaft Alps "Blue" pot
  61. Cleaning dusty printed circuit boards
  62. ad797 plus buf634
  63. Bypass - ceramic or film?
  64. tweeter crossover
  65. This pre-amp good?
  66. Remote Control Pot
  67. VU Meter ballistics
  68. The "AmpDuino" project
  69. Capacitors at 50v vs 25v on replacement in preamp power supply?
  70. Knocking sound coming from PCB
  71. Versatile quad-amp card
  72. 4-channel 20dB gain stage with unbal inputs and unbal+bal outputs: Any Interest?
  73. Just built a Hagerman Cornet 2 phono pre
  74. ad797 questions
  75. [Newbie]Audio bandpass filter design
  76. Wideband DCA preamp with shunt PS
  77. 3-way input selector + Attenuator + Balanced outputs?
  78. subwoofer circuit
  79. Motorised Volume Pot - Controller isolation
  80. Audio compressor to lower TV commercials-help needed
  81. AUS: Alpha 20/10 Preamp & Sigma 22 Builder Required
  82. 2ch passive stereo summing circuit?
  83. designing a 1-Hz lowpass with no DC error
  84. What is a preamp actually doing?
  85. Choosing attenuator for MF X-10D Clone
  86. some questions about DC servo mic pre's
  87. Need hekp with how to select a preamp
  88. Weird problem with a preamp with 3 band EQ module
  89. TEAC VU Meter Hookup
  90. input transformer frequency response?
  91. Help wanted checking vero layout for active 4 channel mixer
  92. Simple non-digital input selector
  93. dc on only one primary of the line trafo
  94. Volume potmeter Technics Su 8600
  95. Servo on non-inverting opamp ?
  96. Any suggestions to improve these output and input filters?
  97. simple solution for VU-Meter
  98. Combined Speaker-Amplifier Project
  99. Teac AN-60 Alignment
  100. 2.5v achieves lower distortion on LDR NSL32SR2
  101. Help Gain clone supply PCB design
  102. HOW TO MEASURE interference between e.g. 20kHz and 21kHz tones?
  103. 3-way signal splitter
  104. implimenting linkwitz's notch/dip filter for room eq
  105. Anyone seen this EQ before?
  106. ReCapping marantz av-9000 16v 13000uf
  107. Audio Processing
  108. Anyone know what these caps are for?
  109. Is coax needed to wire a microphone?
  110. How do I choose a preamplifier that would be compatible with this microphone?
  111. W06M – Bridge Rectifier, equivalent substitute
  112. Preamplifier kit information
  113. Handling +4dBu/-10dBv and un/balanced
  114. Line receiver and driver pcb?
  115. 2 conductor shielded cable
  116. HIGHLEVEL INPUT IN PLATE AMP!
  117. 20hz high pass on Ashly XR2000 - removable?
  118. Transformer Based Balanced Output & Impedance
  119. Poll for the participants of "John Curl's Blowtorch preamplifier part II"
  120. John Bowers Active Control Unit preamp: Info sought
  121. Looking for pointers on first DIY preamp please.
  122. Simple analog vu-meter driver ?
  123. Please pardon the noob question. need guidance
  124. Build a high pass filter for amplifier
  125. Critique on success of this subwoofer cutoff project?
  126. Need gain AMOUNT for mobile phone/pc sources
  127. re-replacing 2sk213/j76 transistors help
  128. Preventing crossover between mixers
  129. RCA LMI- 32215 A - for recording studio.
  130. Rane pot help please...
  131. Simple low voltage tube preamp stage
  132. HELP me design a discrete current sinking positive V regulator
  133. True Biamping and Active crossovers info request
  134. Question about hypex balanced vs unbalanced
  135. Soundcraftsmen
  136. very small noob question project 88
  137. Help with cable conundrum!
  138. P7 Pre amp Trouble
  139. Party-line / Full-duplex intercom - mixing audio signals
  140. ZSP1 preamp gain
  141. Acurus L10 Powersupply
  142. Building an Analog to Digital Converter Unit...
  143. DIY pre amp board
  144. Opamp power bypass
  145. Tone Control - Volatage range for TL072/LF252-N
  146. Stereo volume attenuation
  147. Quad channel volume control
  148. Work? L, R RCA inputs -> 1 XLR out?
  149. Impedance matching pre -> power.
  150. LME49740 vs TL074, design considerations and stability
  151. Solid state R2R attenuator using analog switches or multiplying DAC
  152. MF nuvista source selector problem again
  153. What do we think about solid-state potentiometers?
  154. TubeCAD's ACF2 as a active crossover
  155. Phaseca--My new diy pre amp
  156. looking for bass treble pcb pattern
  157. Mobile recording using linein
  158. [Need] simple preamp and LPF based on 5532 for digital sources
  159. wall-based trasformer volume control as passive pre?
  160. noob stab in the dark - riaa preamp
  161. Oscillating Op-Amp
  162. Preamp for shotgun mic
  163. Mark Levinson No 38, Need Help
  164. Help! Kenwood Basic C-2 left channel out (phono only)
  165. Signal delay schematic
  166. Adding 4 channels to a 2 channel input on HT amp
  167. vumeter (stereo, mono)
  168. Acquired Some Elan Components, What are They?
  169. Pre-mix for boombox
  170. Reed Switch Audio Attenuator
  171. "Balanced" PGA2311?
  172. 2 way crossover on Chinese pcbs
  173. SE to Balanced pre question
  174. Interconnect Ground Cable Ground Loops
  175. PGA2310 - PGA2311 - CS3310: version without OPAMP for outdoor OPAmp connection wanted
  176. Any AIKIDO-philes who know why Broskie has changed the formula
  177. One More Overcomplicated Mic Preamp
  178. Problems with subwoofer phase control picking up noise
  179. IC's get hammered
  180. Left/Right channel balance control
  181. Potentiometer Selection
  182. All-In-One Preamp Circuit
  183. Line level mixing
  184. Booze Hounds Labs Phono any good?
  185. PLLXO - Am I doing this right?
  186. Need an Active 2nd Order Low Shelf Filter aka Low Shelving Filter
  187. Switching Noise Between Preamps
  188. Bluetooth Lightspeed attenuator
  189. Help getting 5.1 preamp from Ebay repaired please!
  190. Should using balanced cables to amplified monitors improve sound ?
  191. Apox Audio preamp reborn with the power of Arduino
  192. Does an Op Amp Voltage Follower Operate in Class A?
  193. My boozehound phono stage build
  194. Pre amp kit
  195. balanced preamplifier based on LME49990
  196. Merging two channels with passive low passes
  197. Old Colony Sound Lab T-2D Line Amp - Any Info?
  198. Impedance Bridging and Isolation Tranformer
  199. TDA7315 chip parameters interpretation
  200. MFP-102 N fet compatibility
  201. What is the effect of a 22K res in series with a 25K volume pot?
  202. Senior Project: Bandpass Equalizer pedal
  203. [WANTED] Mark Levinson No 26S Service Manual/Schematic
  204. ORTF is best for stereo recording
  205. A zero impedance preamp and CMRR
  206. good preamp
  207. calculate crossover with Re or impedance ?
  208. Op-Amp Preamp Circuit for Electret Mic
  209. Simple Router (then bass management)
  210. Second order shelving filter
  211. Help with component selection.
  212. passive to tame 8khz peak
  213. Hafler SE100 Preamplifier / Symmetric B1 buffer hybrid
  214. Adcom GFP-750 -Needs Repair
  215. Variable gain op-amp for volume control (vs normal voltage divider pot)
  216. Germanium Transistor and FET opamp
  217. 5 zone preamp based on Arduino controlled optocoupler
  218. How to select the right impedance for volume control
  219. In vehicle Pre-amp for mic (12+ VDC)
  220. Resistor-Diode-Relay Logic Source Selector
  221. 3 into 1 input the other way round
  222. Nagging Ground Issue
  223. Looking for Princeton Applied Research 115 MANUAL
  224. Active Band Pass Filter with +/- Gain
  225. Components source
  226. Guitar ABY or Headphone Amplifier?
  227. rod elliot p88 preamp knob arrangment
  228. C-Mos opamps in audio preamplifiers
  229. Cheap, balanced XLR passive pre?
  230. DIY crossover - Sallen-Key?
  231. Hafler 915 preamp cap question
  232. analog 3.5mm to digital usb possible?
  233. Mixer Pre-amp
  234. DIY tube preamp - help with choosing the right kit
  235. opamp channels mysteriously mixing ¿quantum thing or me too dumb?
  236. MC-22 schematic question
  237. unbalanced/balanced to balanced converter
  238. My line buffer preamp
  239. Attenuating Preamp Filter Question
  240. biamping with one DAC
  241. Audiophile active crossover
  242. adding EQ without screwing up sound; few questions...
  243. SSTART Pcb and power supply project
  244. Help with a simple envelop detector filter. (averaging the signal)
  245. audio output switch? Monitor Controller
  246. Very simple volume control with IR remote
  247. JFETs and MOSFETs biasing questions
  248. I need advise on audio mixing boards?
  249. pre amp output
  250. OPA134 Amp Help

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