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  1. another opamp based preamp
  2. Comment on Grounding Scheme?
  3. Radio Shack experimenter kits
  4. Crossover for Scan Speak 6000 tweeter.
  5. Neutrik nte 10/3 help
  6. RCA to XLR
  7. BBE XR-5383 chip
  8. Balanced level preamp
  9. cinemag CMLI-15/15B, unbal--> bal
  10. Pin 1: Multiple XLRs between two amplifiers
  11. Connecting Mp3 player
  12. DIY Tone + Volume control
  13. volume control
  14. Linkwitz-Riley Electronic Crossover PCB
  15. Balanced Microphone Preamp
  16. How Much Voltage Do I Need For a Standard Headphone
  17. Yet another passive volume control
  18. Distortion and Source Impedance in JFET Input Op Amps
  19. Analog switches
  20. Yuan Jing 6n3 tube preamp power requirements and options
  21. PGA2310 frequency response
  22. Smoking Preamplifier
  23. Carver C1 preamp
  24. Meridian 201 help
  25. Active speaker- adding amp/xo
  26. basic power supply questions
  27. McIntosh C26 hum after recaping
  28. Old Volvo Tape Deck Line Level to Tape Head
  29. I Need A New Audio Input Indicator
  30. Handy Non Inverting Active Volume Control
  31. Active volume control - Be quiet please.
  32. Complementary MOS Preamp
  33. BUFFER /LINE STAGE/ BEST POSSIBLE SPEC and SOUND
  34. Simple Symmetrical Preamplifier
  35. EMT-240, EMT 262
  36. Looking for that person who can analyze and upgrade.
  37. TKD stereo attenuator 10k
  38. Douglas self four-band baxandall eq
  39. Input Noise Cancelation - LME 49990 - LT1028
  40. Baxandall Variations
  41. HELP! Electret mic - Powering from Focusrite mic preamp with 48v
  42. Output Transformer for INA217 Mic Preamp?
  43. Advise please on EQ restore...
  44. Recommendations for pre/mixer/thing boards or etc.?
  45. Daisy chain components
  46. Unidirectional Electert Mic and Preamp help.
  47. Rotary stepped attenuator (series) instructions?
  48. High Quality Splitters and Mixers
  49. Which transformations inside this Django?
  50. Balanced stepped attenuator with constant input impedance
  51. 4-ch unbalanced as stereo balanced?
  52. zobel network at driver Fs?
  53. another relay input/volume controller
  54. Basic Inverting Opamp HUM
  55. Recommendations for a simple, opamp-based low-gain stage?
  56. Art Project needs advise, wall of boomboxes
  57. Attenuator design for a modular synth?
  58. Pot values for tone control - from 25k to 10k
  59. Needing Stereo to Mono Summing help...
  60. 2.1 preamp
  61. A little advice, re capping
  62. 8 ohm volume pot
  63. Naim NAC 32.5 Gain board lower gain
  64. P7 Mini Preamp Possible Improvements
  65. Hum issue in hpf circuit
  66. CS3318 Volume Control board with IR?
  67. Balanced line behaviour on Mixer's output
  68. Akitika PR101 Preamp by Dan Joffe
  69. Which one of these wiring schemes will have lower noise?
  70. Need help identifying preamp internals. Conrad Johnson PV-1?
  71. New edition D. Self Small Signal Audio Design
  72. Subwoofer preamplifier with low frequency boost below 30Hz?
  73. Spectrum analyser using LM3915
  74. 9V opamp suggestions
  75. Circlotron LINE and RIAA Pre-Amplifiers wanted
  76. JFET choice for transformer coupled mic preamp
  77. understanding source+return current flow on PCBs
  78. Why are JRC MUSE01 and MUSE02 opamps so expensive?
  79. can use la3161 as a simple solution in a car ?
  80. crossover commission/kit
  81. Switch both sides of input connections?
  82. Hammond 140QEX
  83. Current Amplifyer
  84. An Old Nikko power-supply section question
  85. THAT 202XT VCA + ?
  86. Need analog guru help on grounding
  87. iRig Pre Component Upgrade
  88. Calculating a TVC
  89. Balanced Microphone Preamplifier
  90. Electret Condenser Microphone preamp analysis
  91. LF Line Level Stage design to preceed class D amplifier
  92. Mic Preamp w transformer input: changing impedance
  93. Line level / unity gain vacuum tube circuits
  94. Interpret stereophile measurement data
  95. Diy passive pre and switch
  96. slow audio increase at turn on?
  97. Hammond Amplifier Modification Issue
  98. Would like some help with a "Crossover Isolator"
  99. Correct way to split line level inside dual headphone amp
  100. How can this work?
  101. Balanced input
  102. crossover / summer for "2.1" active or passive
  103. Need Advice for Bi-amping
  104. Too much DC at buffer's output
  105. passive pre-amp ?
  106. Salvaged Phono Preamp - Begginner Help
  107. Tape head amplification circuit
  108. Laptop to Guitar Amp cable. . . Resistor values?
  109. Hifi from german studio modules - help wanted
  110. Guard rings for op amps
  111. Tone control for Low bass selector and boost circuit
  112. "Lehmann" Buffer Output Transistors.
  113. Minuature Low Pass Filter
  114. Easy High-Pass Filter
  115. Analog signal control
  116. Buffer Stage
  117. Critique my first drawing / possible build [Active DI]
  118. Low pass filter for Bitstream DAC.
  119. Looking for 0-10V Analog Volume Control Circuit
  120. AVC
  121. looking for programmable eq chip / pcba module ??
  122. Another Modified PGA2311 kit with Arduino for volume control and input selection
  123. Kudies to/for the Tortuga Audio LDR3X.V2
  124. Parasound P/HP 850
  125. LECUA 1000 attenuator from Luxman ?
  126. Line Level Output to Guitar Amplifier Input
  127. is there an off the shelf preamp module that works with the apple remote?
  128. How about this sub crossover filter?
  129. help with 2 pole low pass filter/attenuator
  130. Zobel at the srpp input
  131. Preamp noise after PSU update
  132. Low level interconnect (RCA) measurements
  133. what are the blocks generally found in a pre-amp board?
  134. Carver ct-3 preamp
  135. Advice on a preamp/external volume control for use with active monitors
  136. Audiophile quality preamp
  137. Building a Line Level Mixer, Transformer advice needed
  138. Sowter type 3232
  139. Super tone controls-I need PCB
  140. L-pad attenuator on preamp output
  141. DI output protection from phantom power
  142. Getting Started on Preamp Design
  143. Balanced to unbalanced.
  144. Input device protection
  145. WTB LDR volume control PCB ?
  146. Adding Input Gain +/-
  147. Room correction using a modified Linkwitz Transform Circuit
  148. How to change active xover frecuencies
  149. non inverting opamp with gain
  150. Digital volume control for 7.1 preamp
  151. Current options for a budget active LLXO?
  152. low impedance high-pass filter
  153. AKG Perception 100 mic repair
  154. How do I configure a simple logic control
  155. PCB, Tone Control with Transistors and dual supply
  156. very very simple DJ mixer aka summing amp?
  157. Passive low pass filter for subwoofer
  158. Linn Exotik/S non DA version lock up problem
  159. Shine7 12au7 preamp builds?
  160. non-DSP delay - is it possible?
  161. Stevens & Billington TX102 Passive preamp Built
  162. Loading considerations in Filter design
  163. TEAD (Tom Evans Audio Design) Groove RIAA MC Phono Preamp - want simplified Schematic
  164. Diodes instead of input selector (insane newbie question)?
  165. Experience with anti-parallel electrolytic capacitors?
  166. Best wire for passive pre?
  167. Which Op Amp Supply Bypass Technique for Low Noise?
  168. Add MONO/DIM to DAC/Preamp
  169. Crackling from input cable (even when there is no input)
  170. Best sounding signal level relay?
  171. Mic preamp around transformer
  172. Questions on op amp settling time and quiescent current.
  173. question on crossover board layout
  174. Bugle 2 problem
  175. Rca Passive Summing Box
  176. RC Chain in a 3 Band Baxandall EQ Circuit?
  177. Parallel transformer output
  178. Modding Marantz PM-15S1
  179. Sony TA4300F Crossover
  180. Upgrading a commercial phono stage
  181. New Bonsai Preamp
  182. Help with line input switch
  183. Remember the thermal noise....
  184. Help with passive attenuator for headphone amp
  185. Do amp inputs interact with each other?
  186. 6n11 preamp hum
  187. need help with boombox pre-amp/tone control design
  188. Muses01 op amp mod for Rotel RSP-1098(+\-18v)?
  189. low pass filter for DAC output
  190. Driving headphone from speaker output - filtering layout
  191. Highpass mic filter
  192. suitable power supply for dozen opamps?
  193. Little sub preamp/phase circuit
  194. RCA Mixer/Combiner
  195. Offset Problem with Borbely JFET-Buffers
  196. op amp class a bias
  197. Effects of Opamp Loading?
  198. Alps RK27 Motorized Pot - Teardown
  199. TDA7439 tone control IC any good?
  200. 100HZ PLLXO
  201. Bourns PTD90 Series Potentiometer
  202. lowest load for line level equipment to not harm the output stage?
  203. Most important opamp?
  204. 5.1 decode in preamp?
  205. Preamp Recommendation For Millett "Engineer's Amplifier"
  206. Tone feedback loop- can you spot the problem?
  207. DIY turnable amplifier aka RIAA - newbie questions!
  208. Great Deal on RCA Interconnects (Canada)
  209. preamp for hlly tamp-90
  210. AD815ARB-24 availability in any online stores? couldnt find
  211. Super Chip Preamp v1.2 (LT1363)
  212. Opinion on differential low pass filter
  213. Active Low Pass
  214. Differential preamplifier
  215. trouble with varimu compressor design
  216. PGA2311 volume control.
  217. Active Crossover frequency response - help needed HH X300
  218. Suggestion For CFA Op-amp
  219. preamp/mixer combo
  220. 12 channel volume control unit?
  221. Documentation on designing preamps
  222. Clean Line Output? OPA627
  223. Active crossover with AD815?
  224. Carlos AD815 pre voltage supply recommendations
  225. Help with Sowter 1990 SUT wiring
  226. Line level rc lowpass clicking
  227. Attenuator for Passive pre amp, best sounding solution
  228. Source for custom-terminated interconnects ?
  229. Onboard JFET Instrument Low-Z Preamp Help?
  230. Why white noise is always present?
  231. How to implement a pop free/low distortion muting circuit?
  232. Suggestions Requested for Mini Buffer Preamp
  233. Mini-Me second edition tube phono preamp
  234. Balanced fixed H attenuator for line level
  235. impedance symptom
  236. How to link two cores with TRS connector?
  237. Turntable earthing woes
  238. tuac weight and tops preamp
  239. Suggestions for single bipolar input op amp?
  240. Pop/click free HW-based relay attenuator
  241. THAT 1646 PCB - help me review please
  242. new line-preamp
  243. Question on Rod Elliott's P088 op-amp based preamp
  244. Pot hum/external speakers
  245. Will this circuit work?
  246. wiring sub to tube stereo
  247. TI on Filter Noise
  248. Compressor design - Sedra/Smith book
  249. ultra low dist pre Sandman distortion null
  250. Grounding question in phono preamp with battery supply

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