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  1. Looking for tone Control using 4558 opamp
  2. Audiolab 8000C - modify or start again?
  3. Pre-amp mods - new opamp caps position?
  4. 3rdOrderAllpass_HowTo: calculate delay
  5. Help with Jung AD744/811 PCB Layout
  6. determine element value for the pre-amp package I am working on
  7. need help with car ampifier preamp section
  8. Thoughts on reduction of 2nd order harmonic distortion
  9. HK citation 17- new output relay switch
  10. Not Equal Slope of Active Crossover at Same Cut Of Frequency
  11. Soundcard buffer critique, please?
  12. A little advice regarding boosted op amp
  13. preamp/buffer for TA2020/2024
  14. Building a decent input switcher
  15. crossover: series vs paraller effect on load impedance
  16. "NOOB" needs help with tube preamp build
  17. SSL xlogic alpha vhd pre phantom problem
  18. "All at once" IC Phono Stage circuit
  19. Phono stage on ebay EAR834
  20. AK phonostage
  21. INA217 preamp OPA question
  22. PGA 2310 kit
  23. FM Reception Trouble
  24. Help with older Claricon mixer
  25. Single-supply buffer help
  26. minimum preamp output impedance
  27. MXL V69 doesn't work
  28. speaker setup xo help
  29. LCDuino (arduino) R2R relay preamp
  30. My PGA2310 Box
  31. Recommend a Tube buffer for use in product
  32. Spice transistor parameters?
  33. Pre-amp for electret mic capsule->PC input
  34. Good audio with LDR's
  35. Balanced Preamp for bi-amping
  36. dynamic mic to electret input, with splitter
  37. 'slow down' ad797
  38. Linear DAC power supply
  39. VC23 PGAVOL using PGA2310
  40. Help needed designing signal switching circuit
  41. VU Meter XXL with LED Stripe
  42. DC offset from the line level stage.
  43. Anyone have information about Da Vinci Transformer Passive Preamp?
  44. Preamp needed?
  45. DAC to AMP clipping vs noise
  46. Input Select \ Fader IC
  47. Noisy trough
  48. Matching Pre & Power amp.
  49. mic mixer with echo/delay feature connection
  50. http://www.ebay.com/itm/NE5532-volume-control-board-10-times-pre-amp-ASSEMBLED
  51. Phase Inversion
  52. One pair of coupling caps on the input of my XO?
  53. Paralleling transistors for noise
  54. Op Amp rolling OPA627 unstable.
  55. Pitchfork pre-amplifier
  56. 34mm Large Mylar Capsule Diaphragm mic project
  57. XLR to RCA cable wiring
  58. Crown SL-2 Project
  59. Behringer CX2300 replace caps (values change)
  60. Potentiometer wattage
  61. Quick Question about "Grounds".
  62. Mic Preamp which should I make ?
  63. Summing Audio - is it really THAT easy? featuring: MIDIman
  64. 6 channel mini mixer
  65. McIntosh C504
  66. Cambridge 640
  67. Commercial crossover or DIY?
  68. MAX9632???
  69. please help me to calculate/guess Vrms input?
  70. Before you mock me....
  71. New Dual Mono Super BA-3
  72. Two balanced line receivers (switched) at one balanced input
  73. Walt Jung circuit
  74. Unbalancer - user experience
  75. Help, I need to build a signal pad, I want it to be perfect, looking for advice.
  76. Amp Selector Switch - multiple amps, rotary switch
  77. Open Source Remote Control
  78. Another B1 buffer PCB design question
  79. Quad, DIP op amp selection
  80. Input selector provokes oscillation
  81. Aikido Tube buffer stage cathode follower
  82. Doing an analog linear phase crossover
  83. L-C-R RIAA, replacing the L with a gyrator?
  84. LR4 SMD filter project
  85. Linn Kairn schematic?
  86. Volume control for Modulus86
  87. EMU 1616m preamp squealing
  88. Phono stage recommendation
  89. Capacitor on "ground" interconnection to block "ground" DC voltage
  90. tda7052 as volume controll/preamp ?
  91. Help to build a Passive Balanced Preamplifier (Volume control)
  92. Optimal Volume Pot Resistance Question.
  93. How to reduce a preamp output voltage?
  94. Radio Tuner Phono Switcher Box
  95. Linkwitz-Riley 24 dB/Octave pcb
  96. Low pass filter circuit design
  97. Preamp input diagnosis
  98. Modifying a Class A preamplifier design for more gain
  99. PRO 2 or 3 way 4th order crossover.
  100. Those tiresome RCA/chinch
  101. Simple mic preamp
  102. Power supply dilemma for 8-channel mic pre
  103. NAD 1020 replace potentiometers tones!!
  104. Mic cable as single ended interconnects
  105. Layman's question for the pros
  106. Active volume control with balanced output using 2 op-amps
  107. Great American Sound Thalia 1 Service Info
  108. Too much signal voltage...
  109. Impedance matching - Source / Attenuator / Amp
  110. DIY Sine Wave Oscillator Trouble
  111. What is the maximum gain for 1 op amp stage?
  112. What is the consequence of this wiring scheme? (With tangential "extra trace"?)
  113. preamp relay driver needed
  114. Buffer output for PCM1794A
  115. Lemonstre at linelevel
  116. Large band para eq - optimisations and smd pcb ?
  117. Passive line level crossover, different impedance amps
  118. TI Active volume control board...tipd136
  119. carlos Jfet pre voltage questions
  120. Looking for basic source mixer for home system
  121. Help needed for calaculate cutoff frequency ?
  122. Critique this noninverting opamp buffer/amplifier please? Almost time to build...
  123. the "JB" 3-stage Phono Preamp
  124. Preamp does not mute.
  125. 9 Pin1/4" inputjack for Soho tube Preamp
  126. Great American Sound Thaila 2 Setup Procedure
  127. Need a simple pre-amp, quick!
  128. Adding a (variable) gain boost to this non-inverting opamp buffer circuit?
  129. Klotz IC cables - opinions on specific types
  130. Matching I/O Impedance - How to?
  131. Equalizer and tone control circuit used in Dj mixer
  132. High performance subwoofer filter circuit(low pass) to your audio amp
  133. Unity gain opamp circuit
  134. Looking for a Cheap, simple Opamp gain stage
  135. Phantom Powered Stereo DI
  136. Why so difficult; It's just a switch
  137. Buzzing passive pre-amp
  138. do i need a preamp for a passive mixer?
  139. Wire gauge for amplifier's signal level input.
  140. CD Line out - PC sound
  141. Phono pre with Jfet and then ad815 at the second stage..
  142. Replacement for Monacor's RCA Connector T-724G wanted
  143. synare clone kit
  144. Full-Analog Arduino(or embedded)-CTRL 2wayCrossover
  145. Line Level Transformer Impedance
  146. Need help with schematics
  147. Luminous Axiom Passive Pre with 2 Outputs - Dumb Question
  148. how to remote control a rotary switch
  149. NE5532 preamp questions
  150. Using O2 as preamp
  151. 0.005% Distortion Tone Control Preamp, NJW1119A Chipset
  152. Low pass filter for subwoofer.
  153. Getting 10-15 dB gain from an opamp buffer circuit?
  154. Simple Volume Knob&Limiter?
  155. Phono card as standalone unit
  156. Passive Preamp schematic for multiple inputs and 2 outputs - help?
  157. 3-way input audio input switching board (ebay)
  158. mixer line in gain control
  159. Single ended Baxandall control - offset on pots
  160. HK825 replace Balance Pot
  161. Simple attenuation needed
  162. Looking for circuit improvement advice(Precision Fidelity C8)
  163. pre-amp with 2 stages adjustable gain
  164. portable discrete mic preamp
  165. Preventing source selector 'thump' using transformer?
  166. Bass loss after static shock - HELP
  167. First post
  168. R-2R attenuator PCB layout question
  169. Using 2SK170/J74BL in Ebay JC-2 "Clone"
  170. Is this signal path correct?
  171. Op amp band pass filter connection problems
  172. lpf calculator
  173. impedance matching question
  174. Custom 6H30 linestage
  175. DIY microphone preamp for Monacor MCE-404U capsule
  176. AD815 or THS6012 pros and cons
  177. What is the impedance out of a voltage divider?
  178. Phono Preamp Question...
  179. Analogue Parametric EQ - Calrec Polar...
  180. Sony pcm 7010 - XLR to RCA input
  181. TDA1524A preamp
  182. Wishlist: Op Amp Characterization Curves in Datasheets
  183. Parametric Mid EQ Pot Wiring
  184. Need PS Audio PS IV schematic
  185. Adding Balanced Outputs Psuedo or Real?
  186. Sending an A/V multi channel pre out into another A/V line in?
  187. Copper purity of Cat-5e cable ?
  188. Balance control?
  189. Input/output transformer question
  190. Equalizing the midrange out of a small Radio Shack driver
  191. what ohmage potentiometer for line out volume control?
  192. preamp signal powered down amp
  193. Passive Balanced Attenuator (between Pre & Power)
  194. Best way to add stereo subwoofer pre-outs to existing DAC/preamp?
  195. iPhone Line Out to Car Amp
  196. Is LR4 phase shift audible
  197. line preamp /buffer /module
  198. Please evaluate this RIAA schematic (njm4580)
  199. Praamp crackling
  200. Buffer Jfet
  201. Onkyo SC-901 crossover rebuild(upgrade)
  202. Art Tube MP Help!
  203. How is the sound of the Radford ZD22 preamp compared to modern high-end preamps ?
  204. from stereo to mono (subwoofer) passive adder ?
  205. Newbie Question: Troubleshooting Simple Line Mixer
  206. About preamp circuits improvements
  207. Noob Question: Electros in signal path
  208. Passive or feedback RIAA network tube phono pre?
  209. THAT1606 based line buffer for balanced guitar - Vero design okay?
  210. Attenuating line level signal with buffer vs. resistor...
  211. New Guy Needs Help With Optimus 31-2025 Graphic Equalizer
  212. Preamp: opamp low pass filter for PS noise
  213. I could use some help on a PS Audio Preamp
  214. another opamp based preamp
  215. Comment on Grounding Scheme?
  216. Radio Shack experimenter kits
  217. Crossover for Scan Speak 6000 tweeter.
  218. Neutrik nte 10/3 help
  219. RCA to XLR
  220. BBE XR-5383 chip
  221. Balanced level preamp
  222. cinemag CMLI-15/15B, unbal--> bal
  223. Pin 1: Multiple XLRs between two amplifiers
  224. Connecting Mp3 player
  225. DIY Tone + Volume control
  226. volume control
  227. Linkwitz-Riley Electronic Crossover PCB
  228. Balanced Microphone Preamp
  229. How Much Voltage Do I Need For a Standard Headphone
  230. Yet another passive volume control
  231. Distortion and Source Impedance in JFET Input Op Amps
  232. Analog switches
  233. Yuan Jing 6n3 tube preamp power requirements and options
  234. PGA2310 frequency response
  235. Smoking Preamplifier
  236. Carver C1 preamp
  237. Meridian 201 help
  238. Active speaker- adding amp/xo
  239. basic power supply questions
  240. McIntosh C26 hum after recaping
  241. Old Volvo Tape Deck Line Level to Tape Head
  242. I Need A New Audio Input Indicator
  243. Handy Non Inverting Active Volume Control
  244. Active volume control - Be quiet please.
  245. Complementary MOS Preamp
  246. BUFFER /LINE STAGE/ BEST POSSIBLE SPEC and SOUND
  247. Simple Symmetrical Preamplifier
  248. EMT-240, EMT 262
  249. Looking for that person who can analyze and upgrade.
  250. TKD stereo attenuator 10k

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