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  1. Which one of these wiring schemes will have lower noise?
  2. Need help identifying preamp internals. Conrad Johnson PV-1?
  3. New edition D. Self Small Signal Audio Design
  4. Subwoofer preamplifier with low frequency boost below 30Hz?
  5. Spectrum analyser using LM3915
  6. 9V opamp suggestions
  7. Circlotron LINE and RIAA Pre-Amplifiers wanted
  8. JFET choice for transformer coupled mic preamp
  9. understanding source+return current flow on PCBs
  10. Why are JRC MUSE01 and MUSE02 opamps so expensive?
  11. can use la3161 as a simple solution in a car ?
  12. crossover commission/kit
  13. Switch both sides of input connections?
  14. Hammond 140QEX
  15. Current Amplifyer
  16. An Old Nikko power-supply section question
  17. THAT 202XT VCA + ?
  18. Need analog guru help on grounding
  19. iRig Pre Component Upgrade
  20. Calculating a TVC
  21. Balanced Microphone Preamplifier
  22. Electret Condenser Microphone preamp analysis
  23. LF Line Level Stage design to preceed class D amplifier
  24. Mic Preamp w transformer input: changing impedance
  25. Line level / unity gain vacuum tube circuits
  26. Interpret stereophile measurement data
  27. Diy passive pre and switch
  28. slow audio increase at turn on?
  29. Hammond Amplifier Modification Issue
  30. Would like some help with a "Crossover Isolator"
  31. Correct way to split line level inside dual headphone amp
  32. How can this work?
  33. Balanced input
  34. crossover / summer for "2.1" active or passive
  35. Need Advice for Bi-amping
  36. Too much DC at buffer's output
  37. passive pre-amp ?
  38. Salvaged Phono Preamp - Begginner Help
  39. Tape head amplification circuit
  40. Laptop to Guitar Amp cable. . . Resistor values?
  41. Hifi from german studio modules - help wanted
  42. Guard rings for op amps
  43. Tone control for Low bass selector and boost circuit
  44. "Lehmann" Buffer Output Transistors.
  45. Minuature Low Pass Filter
  46. Easy High-Pass Filter
  47. Analog signal control
  48. Buffer Stage
  49. Critique my first drawing / possible build [Active DI]
  50. Low pass filter for Bitstream DAC.
  51. Looking for 0-10V Analog Volume Control Circuit
  52. AVC
  53. looking for programmable eq chip / pcba module ??
  54. Another Modified PGA2311 kit with Arduino for volume control and input selection
  55. Kudies to/for the Tortuga Audio LDR3X.V2
  56. Parasound P/HP 850
  57. LECUA 1000 attenuator from Luxman ?
  58. Line Level Output to Guitar Amplifier Input
  59. is there an off the shelf preamp module that works with the apple remote?
  60. How about this sub crossover filter?
  61. help with 2 pole low pass filter/attenuator
  62. Zobel at the srpp input
  63. Preamp noise after PSU update
  64. Low level interconnect (RCA) measurements
  65. what are the blocks generally found in a pre-amp board?
  66. Carver ct-3 preamp
  67. Advice on a preamp/external volume control for use with active monitors
  68. Audiophile quality preamp
  69. Building a Line Level Mixer, Transformer advice needed
  70. Sowter type 3232
  71. Super tone controls-I need PCB
  72. L-pad attenuator on preamp output
  73. DI output protection from phantom power
  74. Getting Started on Preamp Design
  75. Balanced to unbalanced.
  76. Input device protection
  77. WTB LDR volume control PCB ?
  78. Adding Input Gain +/-
  79. Room correction using a modified Linkwitz Transform Circuit
  80. How to change active xover frecuencies
  81. non inverting opamp with gain
  82. Digital volume control for 7.1 preamp
  83. Current options for a budget active LLXO?
  84. low impedance high-pass filter
  85. AKG Perception 100 mic repair
  86. How do I configure a simple logic control
  87. PCB, Tone Control with Transistors and dual supply
  88. very very simple DJ mixer aka summing amp?
  89. Passive low pass filter for subwoofer
  90. Linn Exotik/S non DA version lock up problem
  91. Shine7 12au7 preamp builds?
  92. non-DSP delay - is it possible?
  93. Stevens & Billington TX102 Passive preamp Built
  94. Loading considerations in Filter design
  95. TEAD (Tom Evans Audio Design) Groove RIAA MC Phono Preamp - want simplified Schematic
  96. Diodes instead of input selector (insane newbie question)?
  97. Experience with anti-parallel electrolytic capacitors?
  98. Best wire for passive pre?
  99. Which Op Amp Supply Bypass Technique for Low Noise?
  100. Add MONO/DIM to DAC/Preamp
  101. Crackling from input cable (even when there is no input)
  102. Best sounding signal level relay?
  103. Mic preamp around transformer
  104. Questions on op amp settling time and quiescent current.
  105. question on crossover board layout
  106. Bugle 2 problem
  107. Rca Passive Summing Box
  108. RC Chain in a 3 Band Baxandall EQ Circuit?
  109. Parallel transformer output
  110. Modding Marantz PM-15S1
  111. Sony TA4300F Crossover
  112. Upgrading a commercial phono stage
  113. New Bonsai Preamp
  114. Help with line input switch
  115. Remember the thermal noise....
  116. Help with passive attenuator for headphone amp
  117. Do amp inputs interact with each other?
  118. 6n11 preamp hum
  119. need help with boombox pre-amp/tone control design
  120. Muses01 op amp mod for Rotel RSP-1098(+\-18v)?
  121. low pass filter for DAC output
  122. Driving headphone from speaker output - filtering layout
  123. Highpass mic filter
  124. suitable power supply for dozen opamps?
  125. Little sub preamp/phase circuit
  126. RCA Mixer/Combiner
  127. Offset Problem with Borbely JFET-Buffers
  128. op amp class a bias
  129. Effects of Opamp Loading?
  130. Alps RK27 Motorized Pot - Teardown
  131. TDA7439 tone control IC any good?
  132. 100HZ PLLXO
  133. Bourns PTD90 Series Potentiometer
  134. lowest load for line level equipment to not harm the output stage?
  135. Most important opamp?
  136. 5.1 decode in preamp?
  137. Preamp Recommendation For Millett "Engineer's Amplifier"
  138. Tone feedback loop- can you spot the problem?
  139. DIY turnable amplifier aka RIAA - newbie questions!
  140. Great Deal on RCA Interconnects (Canada)
  141. preamp for hlly tamp-90
  142. AD815ARB-24 availability in any online stores? couldnt find
  143. Super Chip Preamp v1.2 (LT1363)
  144. Opinion on differential low pass filter
  145. Active Low Pass
  146. Differential preamplifier
  147. trouble with varimu compressor design
  148. PGA2311 volume control.
  149. Active Crossover frequency response - help needed HH X300
  150. Suggestion For CFA Op-amp
  151. preamp/mixer combo
  152. 12 channel volume control unit?
  153. Documentation on designing preamps
  154. Clean Line Output? OPA627
  155. Active crossover with AD815?
  156. Carlos AD815 pre voltage supply recommendations
  157. Help with Sowter 1990 SUT wiring
  158. Line level rc lowpass clicking
  159. Attenuator for Passive pre amp, best sounding solution
  160. Source for custom-terminated interconnects ?
  161. Onboard JFET Instrument Low-Z Preamp Help?
  162. Why white noise is always present?
  163. How to implement a pop free/low distortion muting circuit?
  164. Suggestions Requested for Mini Buffer Preamp
  165. Mini-Me second edition tube phono preamp
  166. Balanced fixed H attenuator for line level
  167. impedance symptom
  168. How to link two cores with TRS connector?
  169. Turntable earthing woes
  170. tuac weight and tops preamp
  171. Suggestions for single bipolar input op amp?
  172. Pop/click free HW-based relay attenuator
  173. THAT 1646 PCB - help me review please
  174. new line-preamp
  175. Question on Rod Elliott's P088 op-amp based preamp
  176. Pot hum/external speakers
  177. Will this circuit work?
  178. wiring sub to tube stereo
  179. TI on Filter Noise
  180. Compressor design - Sedra/Smith book
  181. ultra low dist pre Sandman distortion null
  182. Grounding question in phono preamp with battery supply
  183. LME49990 in gain buffer - help please
  184. Khozomo MKII Attenuator review
  185. Which MM Phono Amp ?
  186. Transistors in Buffer Circuit Running Too Hot
  187. Building a complete Preamp with an Arduino, remote, volume and input control
  188. MOSFET's Rds in the signal path, when?
  189. Preferences for setting up an EQ
  190. One more volume control
  191. Shedding 2 awful junctions in the signal path
  192. Line level distribution
  193. INA217 gain calculation
  194. Does this circuit have gain?
  195. An interesting JFET-based active XO circuit from TNT Audio
  196. Peak detector reference voltage level
  197. Goldmund Mimesis 27 Preamp clone
  198. AKAI S3200XL unbal to balanced outputs with VT24499
  199. MooseFET preamplifier?
  200. 6ch(12ch) Volume Control for DSP/DAC/BUFFER/POWERAMP
  201. Parametric EQ after pre-amp
  202. TL072 VS NE5532
  203. Grounding question
  204. Need best tone control
  205. How to switch 2 Sources and 2 Amps
  206. Mic Preamp limitor/Automatic level controller
  207. Douglas Self PreAmp 2012
  208. Is this layout OK? Advice please :)
  209. Microphone Preamp balanced voltage levels
  210. PASSIVE PRE-AMPLIFIER BUILDER REQ
  211. active bass boost
  212. SSM2019 single chip preamplifier?
  213. Rane AC23B active crossover
  214. XD3 crossover?
  215. Muting Circuit
  216. Noticeable difference in low freqs between two channels on a Drawmer DL221 compressor
  217. The precise audio signal level control 5.1
  218. Yamaha a-320
  219. Why not Wye?
  220. Help with high DC at output of Forte clone
  221. Humming DRV134 balanced output.
  222. Problem with parametric equalizer
  223. HLLY AMK-II First (and last) Impressions
  224. Salas hotrodded DCB1 resistor tryouts
  225. NE5532 in quad TSSOP package or similar?
  226. Another low distortion buffer
  227. DBX-122 schematic
  228. Audible Illusions L1 background noise
  229. TDA1524A IC Pre-Amp
  230. Please confirm something basic for me
  231. Parasound P/PH-100 hum
  232. Sonographe SC22 schematics
  233. What makes Reference Line Preeminence so good?
  234. push switch pinout
  235. What is 'Good' Common Mode Rejection?
  236. mf x-p100 power supply
  237. Opamp Having Oscillation
  238. Yamaha MSP7 − 22pF between Op Amp inputs? Why?
  239. How to reduce measured noise floor in my DAC/opamp circuit
  240. Switch Types
  241. Simple MOSFET preamp
  242. The Kuartlotron - keantoken's simple error-correction superbuffer
  243. how much gain do i get on this preamp(ad797)?
  244. how to implement line level bsc on a full balanced setup?
  245. 3 channel quad mixer with front to rear pan
  246. Meridian 502 balanced output circuit
  247. kmtech 2 way, active x over, is it elliptical?
  248. Attenuator kit suggestions sought
  249. How do you create a low shelf with passives?
  250. harman opamp advice

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