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  1. non inverting opamp with gain
  2. Digital volume control for 7.1 preamp
  3. Current options for a budget active LLXO?
  4. low impedance high-pass filter
  5. AKG Perception 100 mic repair
  6. How do I configure a simple logic control
  7. PCB, Tone Control with Transistors and dual supply
  8. very very simple DJ mixer aka summing amp?
  9. Passive low pass filter for subwoofer
  10. Linn Exotik/S non DA version lock up problem
  11. Shine7 12au7 preamp builds?
  12. non-DSP delay - is it possible?
  13. Stevens & Billington TX102 Passive preamp Built
  14. Loading considerations in Filter design
  15. TEAD (Tom Evans Audio Design) Groove RIAA MC Phono Preamp - want simplified Schematic
  16. Diodes instead of input selector (insane newbie question)?
  17. Experience with anti-parallel electrolytic capacitors?
  18. Best wire for passive pre?
  19. Which Op Amp Supply Bypass Technique for Low Noise?
  20. Add MONO/DIM to DAC/Preamp
  21. Crackling from input cable (even when there is no input)
  22. Best sounding signal level relay?
  23. Mic preamp around transformer
  24. Questions on op amp settling time and quiescent current.
  25. question on crossover board layout
  26. Bugle 2 problem
  27. Rca Passive Summing Box
  28. RC Chain in a 3 Band Baxandall EQ Circuit?
  29. Parallel transformer output
  30. Modding Marantz PM-15S1
  31. Sony TA4300F Crossover
  32. Upgrading a commercial phono stage
  33. New Bonsai Preamp
  34. Help with line input switch
  35. Remember the thermal noise....
  36. Help with passive attenuator for headphone amp
  37. Do amp inputs interact with each other?
  38. 6n11 preamp hum
  39. need help with boombox pre-amp/tone control design
  40. Muses01 op amp mod for Rotel RSP-1098(+\-18v)?
  41. low pass filter for DAC output
  42. Driving headphone from speaker output - filtering layout
  43. Highpass mic filter
  44. suitable power supply for dozen opamps?
  45. Little sub preamp/phase circuit
  46. RCA Mixer/Combiner
  47. Offset Problem with Borbely JFET-Buffers
  48. op amp class a bias
  49. Effects of Opamp Loading?
  50. Alps RK27 Motorized Pot - Teardown
  51. TDA7439 tone control IC any good?
  52. 100HZ PLLXO
  53. Bourns PTD90 Series Potentiometer
  54. lowest load for line level equipment to not harm the output stage?
  55. Most important opamp?
  56. 5.1 decode in preamp?
  57. Preamp Recommendation For Millett "Engineer's Amplifier"
  58. Tone feedback loop- can you spot the problem?
  59. DIY turnable amplifier aka RIAA - newbie questions!
  60. Great Deal on RCA Interconnects (Canada)
  61. preamp for hlly tamp-90
  62. AD815ARB-24 availability in any online stores? couldnt find
  63. Super Chip Preamp v1.2 (LT1363)
  64. Opinion on differential low pass filter
  65. Active Low Pass
  66. Differential preamplifier
  67. trouble with varimu compressor design
  68. PGA2311 volume control.
  69. Active Crossover frequency response - help needed HH X300
  70. Suggestion For CFA Op-amp
  71. preamp/mixer combo
  72. 12 channel volume control unit?
  73. Documentation on designing preamps
  74. Clean Line Output? OPA627
  75. Active crossover with AD815?
  76. Carlos AD815 pre voltage supply recommendations
  77. Help with Sowter 1990 SUT wiring
  78. Line level rc lowpass clicking
  79. Attenuator for Passive pre amp, best sounding solution
  80. Source for custom-terminated interconnects ?
  81. Onboard JFET Instrument Low-Z Preamp Help?
  82. Why white noise is always present?
  83. How to implement a pop free/low distortion muting circuit?
  84. Suggestions Requested for Mini Buffer Preamp
  85. Mini-Me second edition tube phono preamp
  86. Balanced fixed H attenuator for line level
  87. impedance symptom
  88. How to link two cores with TRS connector?
  89. Turntable earthing woes
  90. tuac weight and tops preamp
  91. Suggestions for single bipolar input op amp?
  92. Pop/click free HW-based relay attenuator
  93. THAT 1646 PCB - help me review please
  94. new line-preamp
  95. Question on Rod Elliott's P088 op-amp based preamp
  96. Pot hum/external speakers
  97. Will this circuit work?
  98. wiring sub to tube stereo
  99. TI on Filter Noise
  100. Compressor design - Sedra/Smith book
  101. ultra low dist pre Sandman distortion null
  102. Grounding question in phono preamp with battery supply
  103. LME49990 in gain buffer - help please
  104. Khozomo MKII Attenuator review
  105. Which MM Phono Amp ?
  106. Transistors in Buffer Circuit Running Too Hot
  107. Building a complete Preamp with an Arduino, remote, volume and input control
  108. MOSFET's Rds in the signal path, when?
  109. Preferences for setting up an EQ
  110. One more volume control
  111. Shedding 2 awful junctions in the signal path
  112. Line level distribution
  113. INA217 gain calculation
  114. Does this circuit have gain?
  115. An interesting JFET-based active XO circuit from TNT Audio
  116. Peak detector reference voltage level
  117. Goldmund Mimesis 27 Preamp clone
  118. AKAI S3200XL unbal to balanced outputs with VT24499
  119. MooseFET preamplifier?
  120. 6ch(12ch) Volume Control for DSP/DAC/BUFFER/POWERAMP
  121. Parametric EQ after pre-amp
  122. TL072 VS NE5532
  123. Grounding question
  124. Need best tone control
  125. How to switch 2 Sources and 2 Amps
  126. Mic Preamp limitor/Automatic level controller
  127. Douglas Self PreAmp 2012
  128. Is this layout OK? Advice please :)
  129. Microphone Preamp balanced voltage levels
  130. PASSIVE PRE-AMPLIFIER BUILDER REQ
  131. active bass boost
  132. SSM2019 single chip preamplifier?
  133. Rane AC23B active crossover
  134. XD3 crossover?
  135. Muting Circuit
  136. Noticeable difference in low freqs between two channels on a Drawmer DL221 compressor
  137. The precise audio signal level control 5.1
  138. Yamaha a-320
  139. Why not Wye?
  140. Help with high DC at output of Forte clone
  141. Humming DRV134 balanced output.
  142. Problem with parametric equalizer
  143. HLLY AMK-II First (and last) Impressions
  144. Salas hotrodded DCB1 resistor tryouts
  145. NE5532 in quad TSSOP package or similar?
  146. Another low distortion buffer
  147. DBX-122 schematic
  148. Audible Illusions L1 background noise
  149. TDA1524A IC Pre-Amp
  150. Please confirm something basic for me
  151. Parasound P/PH-100 hum
  152. Sonographe SC22 schematics
  153. What makes Reference Line Preeminence so good?
  154. push switch pinout
  155. What is 'Good' Common Mode Rejection?
  156. mf x-p100 power supply
  157. Opamp Having Oscillation
  158. Yamaha MSP7 − 22pF between Op Amp inputs? Why?
  159. How to reduce measured noise floor in my DAC/opamp circuit
  160. Switch Types
  161. Simple MOSFET preamp
  162. The Kuartlotron - keantoken's simple error-correction superbuffer
  163. how much gain do i get on this preamp(ad797)?
  164. how to implement line level bsc on a full balanced setup?
  165. 3 channel quad mixer with front to rear pan
  166. Meridian 502 balanced output circuit
  167. kmtech 2 way, active x over, is it elliptical?
  168. Attenuator kit suggestions sought
  169. How do you create a low shelf with passives?
  170. harman opamp advice
  171. Help needed with a transamp mic preamp circuit.
  172. Kleos 2 Way JFET Crossover with EQ
  173. see this preamp circuit diagram
  174. pre-amp tune up
  175. Preamplifier with aux and mic inputs
  176. Schematic wanted for portable SONY Monaural Receiver ICF-6000L
  177. Need a high quality SS mic preamp kit
  178. Marantz 2270 Preamp
  179. Source selector without mechanical switch
  180. Imaging skewed to the left
  181. THD calc from spectrum analyzer help
  182. A question regarding "loudness"
  183. Did I put these back in the correct spots?
  184. Lookin for nice simple XLR out preamp?
  185. Boz preamp and PLLXO
  186. Sound City studios/Neve etc Documentary
  187. Adding a tube preamp to a solid state combo amp
  188. BAT VK-32SE
  189. The Heavy Cross - ideas about a transconductance phase-splitting amp
  190. Tip on high amplification, low distortion, single-ended, no feedback circuitry?
  191. PC900 tube as a preamp...pictures
  192. Input transformer for summing amp
  193. Stereo to mono summing, which end to sum?
  194. Bass distortion when using digital pot
  195. need help with mute circuit for preamp
  196. JC2 v1.6 preamplifier build
  197. 3-pin balanced XLR - gender conventions
  198. help getting to 47kohm impedance
  199. Volume Control and Sound Quality
  200. Solid State Phono Stage
  201. Balanced ladder attenuator, make before brake question
  202. Standard spacing for XLR connectors
  203. Basic Pre-Amp Kit
  204. Single to differential into amp - transformer or dual opamp
  205. JFET follower Baffle Step Possible? Bass Boost?
  206. Op amps for active Xover and line drivers
  207. crossover buffer question
  208. Balanced LDR attenuator
  209. I'd like to add an Analog In and Out Section to an Elite 62FD Player
  210. Advice needed: mixed order Linkwitz Riley crossover
  211. Best-Sounding RC Attenuator & Source Selection System
  212. Ultra Low Noise - Ultra Low Impedance - Ultra big Problems!
  213. Anyone Ever Heard of a Soho Quatro Preamp?
  214. Help please: need wiring schema for S&B TX-102 TVC
  215. mp3 --> ? Input Transformer ? --> class d
  216. Aikido Octal All in One transformer help
  217. Designing a noob-preamp (single supply)
  218. RIAA Pacific rookie attempt
  219. This may be a silly question...
  220. 1st pre amp build, 1/2 way anyways
  221. Stereo to mono
  222. Tone control schematic with surround sound (?)
  223. Linkwitz Transform Arrangement to optimize subwoofer response
  224. Need help....................
  225. to switch or not?
  226. line transformer matching impedance Icepower 50ASX2
  227. Hot Rodding the Musical Fidelity X-Pre
  228. Any experience with Elliott Sound VCA Pre-Amp
  229. Humm noise on pre McIntosh MX136
  230. Stupid Q ... what determines "signal ground" on a unity gain buffer?
  231. carver C-2 pre hum?
  232. LME49720 preamp for F5
  233. Audio Research LS-1 Schematic & Parts List?
  234. Help for MUSES 72320 DIY kit
  235. Middle Controls
  236. Dual Regulated Bugle Phono Preamp?
  237. How to run line level output to ground
  238. SSM2019BNZ for 'gainy' pre-amp?
  239. DBX Active Crossover
  240. Luxman C1000 preamp starts clicking on and off rapidly after 20 min
  241. Stereo + LFE (2.1)?
  242. Cat5 Audio Line Noise
  243. STP analog audio interconnect ex-Firewire
  244. Octal ccda inclosure build (lots of pics!)
  245. Question about speaker protection kit circuit
  246. Simple Question about Speaker Protection
  247. low pass filter
  248. Checking needed: 2way active crossover
  249. Cermet or conductive plastic
  250. any one have schematic of this cross over?

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