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

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