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  1. Good audio with LDR's
  2. Balanced Preamp for bi-amping
  3. dynamic mic to electret input, with splitter
  4. 'slow down' ad797
  5. Linear DAC power supply
  6. VC23 PGAVOL using PGA2310
  7. Help needed designing signal switching circuit
  8. VU Meter XXL with LED Stripe
  9. DC offset from the line level stage.
  10. Anyone have information about Da Vinci Transformer Passive Preamp?
  11. Preamp needed?
  12. DAC to AMP clipping vs noise
  13. Input Select \ Fader IC
  14. Noisy trough
  15. Matching Pre & Power amp.
  16. mic mixer with echo/delay feature connection
  17. http://www.ebay.com/itm/NE5532-volume-control-board-10-times-pre-amp-ASSEMBLED
  18. Phase Inversion
  19. One pair of coupling caps on the input of my XO?
  20. Paralleling transistors for noise
  21. Op Amp rolling OPA627 unstable.
  22. Pitchfork pre-amplifier
  23. 34mm Large Mylar Capsule Diaphragm mic project
  24. XLR to RCA cable wiring
  25. Crown SL-2 Project
  26. Behringer CX2300 replace caps (values change)
  27. Potentiometer wattage
  28. Quick Question about "Grounds".
  29. Mic Preamp which should I make ?
  30. Summing Audio - is it really THAT easy? featuring: MIDIman
  31. 6 channel mini mixer
  32. McIntosh C504
  33. Cambridge 640
  34. Commercial crossover or DIY?
  35. MAX9632???
  36. please help me to calculate/guess Vrms input?
  37. Before you mock me....
  38. New Dual Mono Super BA-3
  39. Two balanced line receivers (switched) at one balanced input
  40. Walt Jung circuit
  41. Unbalancer - user experience
  42. Help, I need to build a signal pad, I want it to be perfect, looking for advice.
  43. Amp Selector Switch - multiple amps, rotary switch
  44. Open Source Remote Control
  45. Another B1 buffer PCB design question
  46. Quad, DIP op amp selection
  47. Input selector provokes oscillation
  48. Aikido Tube buffer stage cathode follower
  49. Doing an analog linear phase crossover
  50. L-C-R RIAA, replacing the L with a gyrator?
  51. LR4 SMD filter project
  52. Linn Kairn schematic?
  53. Volume control for Modulus86
  54. EMU 1616m preamp squealing
  55. Phono stage recommendation
  56. Capacitor on "ground" interconnection to block "ground" DC voltage
  57. tda7052 as volume controll/preamp ?
  58. Help to build a Passive Balanced Preamplifier (Volume control)
  59. Optimal Volume Pot Resistance Question.
  60. How to reduce a preamp output voltage?
  61. Radio Tuner Phono Switcher Box
  62. Linkwitz-Riley 24 dB/Octave pcb
  63. Low pass filter circuit design
  64. Preamp input diagnosis
  65. Modifying a Class A preamplifier design for more gain
  66. PRO 2 or 3 way 4th order crossover.
  67. Those tiresome RCA/chinch
  68. Simple mic preamp
  69. Power supply dilemma for 8-channel mic pre
  70. NAD 1020 replace potentiometers tones!!
  71. Mic cable as single ended interconnects
  72. Layman's question for the pros
  73. Active volume control with balanced output using 2 op-amps
  74. Great American Sound Thalia 1 Service Info
  75. Too much signal voltage...
  76. Impedance matching - Source / Attenuator / Amp
  77. DIY Sine Wave Oscillator Trouble
  78. What is the maximum gain for 1 op amp stage?
  79. What is the consequence of this wiring scheme? (With tangential "extra trace"?)
  80. preamp relay driver needed
  81. Buffer output for PCM1794A
  82. Lemonstre at linelevel
  83. Large band para eq - optimisations and smd pcb ?
  84. Passive line level crossover, different impedance amps
  85. TI Active volume control board...tipd136
  86. carlos Jfet pre voltage questions
  87. Looking for basic source mixer for home system
  88. Help needed for calaculate cutoff frequency ?
  89. Critique this noninverting opamp buffer/amplifier please? Almost time to build...
  90. the "JB" 3-stage Phono Preamp
  91. Preamp does not mute.
  92. 9 Pin1/4" inputjack for Soho tube Preamp
  93. Great American Sound Thaila 2 Setup Procedure
  94. Need a simple pre-amp, quick!
  95. Adding a (variable) gain boost to this non-inverting opamp buffer circuit?
  96. Klotz IC cables - opinions on specific types
  97. Matching I/O Impedance - How to?
  98. Equalizer and tone control circuit used in Dj mixer
  99. High performance subwoofer filter circuit(low pass) to your audio amp
  100. Unity gain opamp circuit
  101. Looking for a Cheap, simple Opamp gain stage
  102. Phantom Powered Stereo DI
  103. Why so difficult; It's just a switch
  104. Buzzing passive pre-amp
  105. do i need a preamp for a passive mixer?
  106. Wire gauge for amplifier's signal level input.
  107. CD Line out - PC sound
  108. Phono pre with Jfet and then ad815 at the second stage..
  109. Replacement for Monacor's RCA Connector T-724G wanted
  110. synare clone kit
  111. Full-Analog Arduino(or embedded)-CTRL 2wayCrossover
  112. Line Level Transformer Impedance
  113. Need help with schematics
  114. Luminous Axiom Passive Pre with 2 Outputs - Dumb Question
  115. how to remote control a rotary switch
  116. NE5532 preamp questions
  117. Using O2 as preamp
  118. 0.005% Distortion Tone Control Preamp, NJW1119A Chipset
  119. Low pass filter for subwoofer.
  120. Getting 10-15 dB gain from an opamp buffer circuit?
  121. Simple Volume Knob&Limiter?
  122. Phono card as standalone unit
  123. Passive Preamp schematic for multiple inputs and 2 outputs - help?
  124. 3-way input audio input switching board (ebay)
  125. mixer line in gain control
  126. Single ended Baxandall control - offset on pots
  127. HK825 replace Balance Pot
  128. Simple attenuation needed
  129. Looking for circuit improvement advice(Precision Fidelity C8)
  130. pre-amp with 2 stages adjustable gain
  131. portable discrete mic preamp
  132. Preventing source selector 'thump' using transformer?
  133. Bass loss after static shock - HELP
  134. R-2R attenuator PCB layout question
  135. Using 2SK170/J74BL in Ebay JC-2 "Clone"
  136. Is this signal path correct?
  137. Op amp band pass filter connection problems
  138. lpf calculator
  139. impedance matching question
  140. Custom 6H30 linestage
  141. DIY microphone preamp for Monacor MCE-404U capsule
  142. AD815 or THS6012 pros and cons
  143. What is the impedance out of a voltage divider?
  144. Phono Preamp Question...
  145. Analogue Parametric EQ - Calrec Polar...
  146. Sony pcm 7010 - XLR to RCA input
  147. TDA1524A preamp
  148. Wishlist: Op Amp Characterization Curves in Datasheets
  149. Parametric Mid EQ Pot Wiring
  150. Need PS Audio PS IV schematic
  151. Adding Balanced Outputs Psuedo or Real?
  152. Sending an A/V multi channel pre out into another A/V line in?
  153. Copper purity of Cat-5e cable ?
  154. Balance control?
  155. Input/output transformer question
  156. Equalizing the midrange out of a small Radio Shack driver
  157. what ohmage potentiometer for line out volume control?
  158. preamp signal powered down amp
  159. Passive Balanced Attenuator (between Pre & Power)
  160. Best way to add stereo subwoofer pre-outs to existing DAC/preamp?
  161. iPhone Line Out to Car Amp
  162. Is LR4 phase shift audible
  163. line preamp /buffer /module
  164. Please evaluate this RIAA schematic (njm4580)
  165. Praamp crackling
  166. Buffer Jfet
  167. Onkyo SC-901 crossover rebuild(upgrade)
  168. Art Tube MP Help!
  169. How is the sound of the Radford ZD22 preamp compared to modern high-end preamps ?
  170. from stereo to mono (subwoofer) passive adder ?
  171. Newbie Question: Troubleshooting Simple Line Mixer
  172. About preamp circuits improvements
  173. Noob Question: Electros in signal path
  174. Passive or feedback RIAA network tube phono pre?
  175. THAT1606 based line buffer for balanced guitar - Vero design okay?
  176. Attenuating line level signal with buffer vs. resistor...
  177. New Guy Needs Help With Optimus 31-2025 Graphic Equalizer
  178. Preamp: opamp low pass filter for PS noise
  179. I could use some help on a PS Audio Preamp
  180. another opamp based preamp
  181. Comment on Grounding Scheme?
  182. Radio Shack experimenter kits
  183. Crossover for Scan Speak 6000 tweeter.
  184. Neutrik nte 10/3 help
  185. RCA to XLR
  186. BBE XR-5383 chip
  187. Balanced level preamp
  188. cinemag CMLI-15/15B, unbal--> bal
  189. Pin 1: Multiple XLRs between two amplifiers
  190. Connecting Mp3 player
  191. DIY Tone + Volume control
  192. volume control
  193. Linkwitz-Riley Electronic Crossover PCB
  194. Balanced Microphone Preamp
  195. How Much Voltage Do I Need For a Standard Headphone
  196. Yet another passive volume control
  197. Distortion and Source Impedance in JFET Input Op Amps
  198. Analog switches
  199. Yuan Jing 6n3 tube preamp power requirements and options
  200. PGA2310 frequency response
  201. Smoking Preamplifier
  202. Carver C1 preamp
  203. Meridian 201 help
  204. Active speaker- adding amp/xo
  205. basic power supply questions
  206. McIntosh C26 hum after recaping
  207. Old Volvo Tape Deck Line Level to Tape Head
  208. I Need A New Audio Input Indicator
  209. Handy Non Inverting Active Volume Control
  210. Active volume control - Be quiet please.
  211. Complementary MOS Preamp
  212. BUFFER /LINE STAGE/ BEST POSSIBLE SPEC and SOUND
  213. Simple Symmetrical Preamplifier
  214. EMT-240, EMT 262
  215. Looking for that person who can analyze and upgrade.
  216. TKD stereo attenuator 10k
  217. Douglas self four-band baxandall eq
  218. Input Noise Cancelation - LME 49990 - LT1028
  219. Baxandall Variations
  220. HELP! Electret mic - Powering from Focusrite mic preamp with 48v
  221. Output Transformer for INA217 Mic Preamp?
  222. Advise please on EQ restore...
  223. Recommendations for pre/mixer/thing boards or etc.?
  224. Daisy chain components
  225. Unidirectional Electert Mic and Preamp help.
  226. Rotary stepped attenuator (series) instructions?
  227. High Quality Splitters and Mixers
  228. Which transformations inside this Django?
  229. Balanced stepped attenuator with constant input impedance
  230. 4-ch unbalanced as stereo balanced?
  231. zobel network at driver Fs?
  232. another relay input/volume controller
  233. Basic Inverting Opamp HUM
  234. Recommendations for a simple, opamp-based low-gain stage?
  235. Art Project needs advise, wall of boomboxes
  236. Attenuator design for a modular synth?
  237. Pot values for tone control - from 25k to 10k
  238. Needing Stereo to Mono Summing help...
  239. 2.1 preamp
  240. A little advice, re capping
  241. 8 ohm volume pot
  242. Naim NAC 32.5 Gain board lower gain
  243. P7 Mini Preamp Possible Improvements
  244. Hum issue in hpf circuit
  245. CS3318 Volume Control board with IR?
  246. Balanced line behaviour on Mixer's output
  247. Akitika PR101 Preamp by Dan Joffe
  248. Which one of these wiring schemes will have lower noise?
  249. Need help identifying preamp internals. Conrad Johnson PV-1?
  250. New edition D. Self Small Signal Audio Design

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