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  1. Noisy trough
  2. Matching Pre & Power amp.
  3. mic mixer with echo/delay feature connection
  4. http://www.ebay.com/itm/NE5532-volume-control-board-10-times-pre-amp-ASSEMBLED
  5. Phase Inversion
  6. One pair of coupling caps on the input of my XO?
  7. Paralleling transistors for noise
  8. Op Amp rolling OPA627 unstable.
  9. Pitchfork pre-amplifier
  10. 34mm Large Mylar Capsule Diaphragm mic project
  11. XLR to RCA cable wiring
  12. Crown SL-2 Project
  13. Behringer CX2300 replace caps (values change)
  14. Potentiometer wattage
  15. Quick Question about "Grounds".
  16. Mic Preamp which should I make ?
  17. Summing Audio - is it really THAT easy? featuring: MIDIman
  18. McIntosh C504
  19. Cambridge 640
  20. Commercial crossover or DIY?
  21. MAX9632???
  22. please help me to calculate/guess Vrms input?
  23. Before you mock me....
  24. New Dual Mono Super BA-3
  25. Two balanced line receivers (switched) at one balanced input
  26. Walt Jung circuit
  27. Unbalancer - user experience
  28. Help, I need to build a signal pad, I want it to be perfect, looking for advice.
  29. Amp Selector Switch - multiple amps, rotary switch
  30. Open Source Remote Control
  31. Another B1 buffer PCB design question
  32. Quad, DIP op amp selection
  33. Input selector provokes oscillation
  34. Aikido Tube buffer stage cathode follower
  35. Doing an analog linear phase crossover
  36. L-C-R RIAA, replacing the L with a gyrator?
  37. LR4 SMD filter project
  38. Linn Kairn schematic?
  39. Volume control for Modulus86
  40. EMU 1616m preamp squealing
  41. Phono stage recommendation
  42. Capacitor on "ground" interconnection to block "ground" DC voltage
  43. tda7052 as volume controll/preamp ?
  44. Help to build a Passive Balanced Preamplifier (Volume control)
  45. Optimal Volume Pot Resistance Question.
  46. How to reduce a preamp output voltage?
  47. Radio Tuner Phono Switcher Box
  48. Linkwitz-Riley 24 dB/Octave pcb
  49. Low pass filter circuit design
  50. Preamp input diagnosis
  51. Modifying a Class A preamplifier design for more gain
  52. PRO 2 or 3 way 4th order crossover.
  53. Those tiresome RCA/chinch
  54. Simple mic preamp
  55. Power supply dilemma for 8-channel mic pre
  56. NAD 1020 replace potentiometers tones!!
  57. Mic cable as single ended interconnects
  58. Layman's question for the pros
  59. Active volume control with balanced output using 2 op-amps
  60. Great American Sound Thalia 1 Service Info
  61. Too much signal voltage...
  62. Impedance matching - Source / Attenuator / Amp
  63. DIY Sine Wave Oscillator Trouble
  64. What is the maximum gain for 1 op amp stage?
  65. What is the consequence of this wiring scheme? (With tangential "extra trace"?)
  66. preamp relay driver needed
  67. Buffer output for PCM1794A
  68. Lemonstre at linelevel
  69. Large band para eq - optimisations and smd pcb ?
  70. Passive line level crossover, different impedance amps
  71. TI Active volume control board...tipd136
  72. carlos Jfet pre voltage questions
  73. Looking for basic source mixer for home system
  74. Help needed for calaculate cutoff frequency ?
  75. Critique this noninverting opamp buffer/amplifier please? Almost time to build...
  76. the "JB" 3-stage Phono Preamp
  77. Preamp does not mute.
  78. 9 Pin1/4" inputjack for Soho tube Preamp
  79. Great American Sound Thaila 2 Setup Procedure
  80. Need a simple pre-amp, quick!
  81. Adding a (variable) gain boost to this non-inverting opamp buffer circuit?
  82. Klotz IC cables - opinions on specific types
  83. Matching I/O Impedance - How to?
  84. Equalizer and tone control circuit used in Dj mixer
  85. High performance subwoofer filter circuit(low pass) to your audio amp
  86. Unity gain opamp circuit
  87. Looking for a Cheap, simple Opamp gain stage
  88. Phantom Powered Stereo DI
  89. Why so difficult; It's just a switch
  90. Buzzing passive pre-amp
  91. do i need a preamp for a passive mixer?
  92. Wire gauge for amplifier's signal level input.
  93. CD Line out - PC sound
  94. Phono pre with Jfet and then ad815 at the second stage..
  95. Replacement for Monacor's RCA Connector T-724G wanted
  96. synare clone kit
  97. Full-Analog Arduino(or embedded)-CTRL 2wayCrossover
  98. Line Level Transformer Impedance
  99. Need help with schematics
  100. Luminous Axiom Passive Pre with 2 Outputs - Dumb Question
  101. how to remote control a rotary switch
  102. NE5532 preamp questions
  103. Using O2 as preamp
  104. 0.005% Distortion Tone Control Preamp, NJW1119A Chipset
  105. Low pass filter for subwoofer.
  106. Getting 10-15 dB gain from an opamp buffer circuit?
  107. Simple Volume Knob&Limiter?
  108. Phono card as standalone unit
  109. Passive Preamp schematic for multiple inputs and 2 outputs - help?
  110. 3-way input audio input switching board (ebay)
  111. mixer line in gain control
  112. Single ended Baxandall control - offset on pots
  113. HK825 replace Balance Pot
  114. Simple attenuation needed
  115. Looking for circuit improvement advice(Precision Fidelity C8)
  116. pre-amp with 2 stages adjustable gain
  117. portable discrete mic preamp
  118. Preventing source selector 'thump' using transformer?
  119. Bass loss after static shock - HELP
  120. First post
  121. R-2R attenuator PCB layout question
  122. Using 2SK170/J74BL in Ebay JC-2 "Clone"
  123. Is this signal path correct?
  124. Op amp band pass filter connection problems
  125. lpf calculator
  126. impedance matching question
  127. Custom 6H30 linestage
  128. DIY microphone preamp for Monacor MCE-404U capsule
  129. AD815 or THS6012 pros and cons
  130. What is the impedance out of a voltage divider?
  131. Phono Preamp Question...
  132. Analogue Parametric EQ - Calrec Polar...
  133. Sony pcm 7010 - XLR to RCA input
  134. TDA1524A preamp
  135. Wishlist: Op Amp Characterization Curves in Datasheets
  136. Parametric Mid EQ Pot Wiring
  137. Need PS Audio PS IV schematic
  138. Adding Balanced Outputs Psuedo or Real?
  139. Sending an A/V multi channel pre out into another A/V line in?
  140. Copper purity of Cat-5e cable ?
  141. Balance control?
  142. Input/output transformer question
  143. Equalizing the midrange out of a small Radio Shack driver
  144. what ohmage potentiometer for line out volume control?
  145. preamp signal powered down amp
  146. Passive Balanced Attenuator (between Pre & Power)
  147. Best way to add stereo subwoofer pre-outs to existing DAC/preamp?
  148. iPhone Line Out to Car Amp
  149. Is LR4 phase shift audible
  150. line preamp /buffer /module
  151. Please evaluate this RIAA schematic (njm4580)
  152. Praamp crackling
  153. Buffer Jfet
  154. Onkyo SC-901 crossover rebuild(upgrade)
  155. Art Tube MP Help!
  156. How is the sound of the Radford ZD22 preamp compared to modern high-end preamps ?
  157. from stereo to mono (subwoofer) passive adder ?
  158. Newbie Question: Troubleshooting Simple Line Mixer
  159. About preamp circuits improvements
  160. Noob Question: Electros in signal path
  161. Passive or feedback RIAA network tube phono pre?
  162. THAT1606 based line buffer for balanced guitar - Vero design okay?
  163. Attenuating line level signal with buffer vs. resistor...
  164. New Guy Needs Help With Optimus 31-2025 Graphic Equalizer
  165. Preamp: opamp low pass filter for PS noise
  166. I could use some help on a PS Audio Preamp
  167. another opamp based preamp
  168. Comment on Grounding Scheme?
  169. Radio Shack experimenter kits
  170. Crossover for Scan Speak 6000 tweeter.
  171. Neutrik nte 10/3 help
  172. RCA to XLR
  173. BBE XR-5383 chip
  174. Balanced level preamp
  175. cinemag CMLI-15/15B, unbal--> bal
  176. Pin 1: Multiple XLRs between two amplifiers
  177. Connecting Mp3 player
  178. DIY Tone + Volume control
  179. volume control
  180. Linkwitz-Riley Electronic Crossover PCB
  181. Balanced Microphone Preamp
  182. How Much Voltage Do I Need For a Standard Headphone
  183. Yet another passive volume control
  184. Distortion and Source Impedance in JFET Input Op Amps
  185. Analog switches
  186. Yuan Jing 6n3 tube preamp power requirements and options
  187. PGA2310 frequency response
  188. Smoking Preamplifier
  189. Carver C1 preamp
  190. Meridian 201 help
  191. Active speaker- adding amp/xo
  192. basic power supply questions
  193. McIntosh C26 hum after recaping
  194. Old Volvo Tape Deck Line Level to Tape Head
  195. I Need A New Audio Input Indicator
  196. Handy Non Inverting Active Volume Control
  197. Active volume control - Be quiet please.
  198. Complementary MOS Preamp
  199. BUFFER /LINE STAGE/ BEST POSSIBLE SPEC and SOUND
  200. Simple Symmetrical Preamplifier
  201. EMT-240, EMT 262
  202. Looking for that person who can analyze and upgrade.
  203. TKD stereo attenuator 10k
  204. Douglas self four-band baxandall eq
  205. Input Noise Cancelation - LME 49990 - LT1028
  206. Baxandall Variations
  207. HELP! Electret mic - Powering from Focusrite mic preamp with 48v
  208. Output Transformer for INA217 Mic Preamp?
  209. Advise please on EQ restore...
  210. Recommendations for pre/mixer/thing boards or etc.?
  211. Daisy chain components
  212. Unidirectional Electert Mic and Preamp help.
  213. Rotary stepped attenuator (series) instructions?
  214. High Quality Splitters and Mixers
  215. Which transformations inside this Django?
  216. Balanced stepped attenuator with constant input impedance
  217. 4-ch unbalanced as stereo balanced?
  218. zobel network at driver Fs?
  219. another relay input/volume controller
  220. Basic Inverting Opamp HUM
  221. Recommendations for a simple, opamp-based low-gain stage?
  222. Art Project needs advise, wall of boomboxes
  223. Attenuator design for a modular synth?
  224. Pot values for tone control - from 25k to 10k
  225. Needing Stereo to Mono Summing help...
  226. 2.1 preamp
  227. A little advice, re capping
  228. 8 ohm volume pot
  229. Naim NAC 32.5 Gain board lower gain
  230. P7 Mini Preamp Possible Improvements
  231. Hum issue in hpf circuit
  232. CS3318 Volume Control board with IR?
  233. Balanced line behaviour on Mixer's output
  234. Akitika PR101 Preamp by Dan Joffe
  235. Which one of these wiring schemes will have lower noise?
  236. Need help identifying preamp internals. Conrad Johnson PV-1?
  237. New edition D. Self Small Signal Audio Design
  238. Subwoofer preamplifier with low frequency boost below 30Hz?
  239. Spectrum analyser using LM3915
  240. 9V opamp suggestions
  241. Circlotron LINE and RIAA Pre-Amplifiers wanted
  242. JFET choice for transformer coupled mic preamp
  243. understanding source+return current flow on PCBs
  244. Why are JRC MUSE01 and MUSE02 opamps so expensive?
  245. can use la3161 as a simple solution in a car ?
  246. crossover commission/kit
  247. Switch both sides of input connections?
  248. Hammond 140QEX
  249. Current Amplifyer
  250. An Old Nikko power-supply section question

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