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  1. Carver ct-3 preamp
  2. Advice on a preamp/external volume control for use with active monitors
  3. Audiophile quality preamp
  4. Building a Line Level Mixer, Transformer advice needed
  5. Sowter type 3232
  6. Super tone controls-I need PCB
  7. L-pad attenuator on preamp output
  8. DI output protection from phantom power
  9. Getting Started on Preamp Design
  10. Balanced to unbalanced.
  11. Input device protection
  12. WTB LDR volume control PCB ?
  13. Adding Input Gain +/-
  14. Room correction using a modified Linkwitz Transform Circuit
  15. How to change active xover frecuencies
  16. non inverting opamp with gain
  17. Digital volume control for 7.1 preamp
  18. Current options for a budget active LLXO?
  19. low impedance high-pass filter
  20. AKG Perception 100 mic repair
  21. How do I configure a simple logic control
  22. PCB, Tone Control with Transistors and dual supply
  23. very very simple DJ mixer aka summing amp?
  24. Passive low pass filter for subwoofer
  25. Linn Exotik/S non DA version lock up problem
  26. Shine7 12au7 preamp builds?
  27. non-DSP delay - is it possible?
  28. Stevens & Billington TX102 Passive preamp Built
  29. Loading considerations in Filter design
  30. TEAD (Tom Evans Audio Design) Groove RIAA MC Phono Preamp - want simplified Schematic
  31. Diodes instead of input selector (insane newbie question)?
  32. Experience with anti-parallel electrolytic capacitors?
  33. Best wire for passive pre?
  34. Which Op Amp Supply Bypass Technique for Low Noise?
  35. Add MONO/DIM to DAC/Preamp
  36. Crackling from input cable (even when there is no input)
  37. Best sounding signal level relay?
  38. Mic preamp around transformer
  39. Questions on op amp settling time and quiescent current.
  40. question on crossover board layout
  41. Bugle 2 problem
  42. Rca Passive Summing Box
  43. RC Chain in a 3 Band Baxandall EQ Circuit?
  44. Parallel transformer output
  45. Modding Marantz PM-15S1
  46. Sony TA4300F Crossover
  47. Upgrading a commercial phono stage
  48. New Bonsai Preamp
  49. Help with line input switch
  50. Remember the thermal noise....
  51. Help with passive attenuator for headphone amp
  52. Do amp inputs interact with each other?
  53. 6n11 preamp hum
  54. need help with boombox pre-amp/tone control design
  55. Muses01 op amp mod for Rotel RSP-1098(+\-18v)?
  56. low pass filter for DAC output
  57. Driving headphone from speaker output - filtering layout
  58. Highpass mic filter
  59. suitable power supply for dozen opamps?
  60. Little sub preamp/phase circuit
  61. RCA Mixer/Combiner
  62. Offset Problem with Borbely JFET-Buffers
  63. op amp class a bias
  64. Effects of Opamp Loading?
  65. Alps RK27 Motorized Pot - Teardown
  66. TDA7439 tone control IC any good?
  67. 100HZ PLLXO
  68. Bourns PTD90 Series Potentiometer
  69. lowest load for line level equipment to not harm the output stage?
  70. Most important opamp?
  71. 5.1 decode in preamp?
  72. Preamp Recommendation For Millett "Engineer's Amplifier"
  73. Tone feedback loop- can you spot the problem?
  74. DIY turnable amplifier aka RIAA - newbie questions!
  75. Great Deal on RCA Interconnects (Canada)
  76. preamp for hlly tamp-90
  77. AD815ARB-24 availability in any online stores? couldnt find
  78. Super Chip Preamp v1.2 (LT1363)
  79. Opinion on differential low pass filter
  80. Active Low Pass
  81. Differential preamplifier
  82. trouble with varimu compressor design
  83. PGA2311 volume control.
  84. Active Crossover frequency response - help needed HH X300
  85. Suggestion For CFA Op-amp
  86. preamp/mixer combo
  87. 12 channel volume control unit?
  88. Documentation on designing preamps
  89. Clean Line Output? OPA627
  90. Active crossover with AD815?
  91. Carlos AD815 pre voltage supply recommendations
  92. Help with Sowter 1990 SUT wiring
  93. Line level rc lowpass clicking
  94. Attenuator for Passive pre amp, best sounding solution
  95. Source for custom-terminated interconnects ?
  96. Onboard JFET Instrument Low-Z Preamp Help?
  97. Why white noise is always present?
  98. How to implement a pop free/low distortion muting circuit?
  99. Suggestions Requested for Mini Buffer Preamp
  100. Mini-Me second edition tube phono preamp
  101. Balanced fixed H attenuator for line level
  102. impedance symptom
  103. How to link two cores with TRS connector?
  104. Turntable earthing woes
  105. tuac weight and tops preamp
  106. Suggestions for single bipolar input op amp?
  107. Pop/click free HW-based relay attenuator
  108. THAT 1646 PCB - help me review please
  109. new line-preamp
  110. Question on Rod Elliott's P088 op-amp based preamp
  111. Pot hum/external speakers
  112. Will this circuit work?
  113. wiring sub to tube stereo
  114. TI on Filter Noise
  115. Compressor design - Sedra/Smith book
  116. ultra low dist pre Sandman distortion null
  117. Grounding question in phono preamp with battery supply
  118. LME49990 in gain buffer - help please
  119. Khozomo MKII Attenuator review
  120. Which MM Phono Amp ?
  121. Transistors in Buffer Circuit Running Too Hot
  122. Building a complete Preamp with an Arduino, remote, volume and input control
  123. MOSFET's Rds in the signal path, when?
  124. Preferences for setting up an EQ
  125. One more volume control
  126. Shedding 2 awful junctions in the signal path
  127. Line level distribution
  128. INA217 gain calculation
  129. Does this circuit have gain?
  130. An interesting JFET-based active XO circuit from TNT Audio
  131. Peak detector reference voltage level
  132. Goldmund Mimesis 27 Preamp clone
  133. AKAI S3200XL unbal to balanced outputs with VT24499
  134. MooseFET preamplifier?
  135. 6ch(12ch) Volume Control for DSP/DAC/BUFFER/POWERAMP
  136. Parametric EQ after pre-amp
  137. TL072 VS NE5532
  138. Grounding question
  139. Need best tone control
  140. How to switch 2 Sources and 2 Amps
  141. Mic Preamp limitor/Automatic level controller
  142. Douglas Self PreAmp 2012
  143. Is this layout OK? Advice please :)
  144. Microphone Preamp balanced voltage levels
  145. PASSIVE PRE-AMPLIFIER BUILDER REQ
  146. active bass boost
  147. SSM2019 single chip preamplifier?
  148. Rane AC23B active crossover
  149. XD3 crossover?
  150. Muting Circuit
  151. Noticeable difference in low freqs between two channels on a Drawmer DL221 compressor
  152. The precise audio signal level control 5.1
  153. Yamaha a-320
  154. Why not Wye?
  155. Help with high DC at output of Forte clone
  156. Humming DRV134 balanced output.
  157. Problem with parametric equalizer
  158. HLLY AMK-II First (and last) Impressions
  159. Salas hotrodded DCB1 resistor tryouts
  160. NE5532 in quad TSSOP package or similar?
  161. Another low distortion buffer
  162. DBX-122 schematic
  163. Audible Illusions L1 background noise
  164. TDA1524A IC Pre-Amp
  165. Please confirm something basic for me
  166. Parasound P/PH-100 hum
  167. Sonographe SC22 schematics
  168. What makes Reference Line Preeminence so good?
  169. push switch pinout
  170. What is 'Good' Common Mode Rejection?
  171. mf x-p100 power supply
  172. Opamp Having Oscillation
  173. Yamaha MSP7 − 22pF between Op Amp inputs? Why?
  174. How to reduce measured noise floor in my DAC/opamp circuit
  175. Switch Types
  176. Simple MOSFET preamp
  177. The Kuartlotron - keantoken's simple error-correction superbuffer
  178. how much gain do i get on this preamp(ad797)?
  179. how to implement line level bsc on a full balanced setup?
  180. 3 channel quad mixer with front to rear pan
  181. Meridian 502 balanced output circuit
  182. kmtech 2 way, active x over, is it elliptical?
  183. Attenuator kit suggestions sought
  184. How do you create a low shelf with passives?
  185. harman opamp advice
  186. Help needed with a transamp mic preamp circuit.
  187. Kleos 2 Way JFET Crossover with EQ
  188. see this preamp circuit diagram
  189. pre-amp tune up
  190. Preamplifier with aux and mic inputs
  191. Schematic wanted for portable SONY Monaural Receiver ICF-6000L
  192. Need a high quality SS mic preamp kit
  193. Marantz 2270 Preamp
  194. Source selector without mechanical switch
  195. Imaging skewed to the left
  196. THD calc from spectrum analyzer help
  197. A question regarding "loudness"
  198. Did I put these back in the correct spots?
  199. Lookin for nice simple XLR out preamp?
  200. Boz preamp and PLLXO
  201. Sound City studios/Neve etc Documentary
  202. Adding a tube preamp to a solid state combo amp
  203. BAT VK-32SE
  204. The Heavy Cross - ideas about a transconductance phase-splitting amp
  205. Tip on high amplification, low distortion, single-ended, no feedback circuitry?
  206. PC900 tube as a preamp...pictures
  207. Input transformer for summing amp
  208. Stereo to mono summing, which end to sum?
  209. Bass distortion when using digital pot
  210. need help with mute circuit for preamp
  211. JC2 v1.6 preamplifier build
  212. 3-pin balanced XLR - gender conventions
  213. help getting to 47kohm impedance
  214. Volume Control and Sound Quality
  215. Solid State Phono Stage
  216. Balanced ladder attenuator, make before brake question
  217. Standard spacing for XLR connectors
  218. Basic Pre-Amp Kit
  219. Single to differential into amp - transformer or dual opamp
  220. JFET follower Baffle Step Possible? Bass Boost?
  221. Op amps for active Xover and line drivers
  222. crossover buffer question
  223. Balanced LDR attenuator
  224. I'd like to add an Analog In and Out Section to an Elite 62FD Player
  225. Advice needed: mixed order Linkwitz Riley crossover
  226. Best-Sounding RC Attenuator & Source Selection System
  227. Ultra Low Noise - Ultra Low Impedance - Ultra big Problems!
  228. Anyone Ever Heard of a Soho Quatro Preamp?
  229. Help please: need wiring schema for S&B TX-102 TVC
  230. mp3 --> ? Input Transformer ? --> class d
  231. Aikido Octal All in One transformer help
  232. Designing a noob-preamp (single supply)
  233. RIAA Pacific rookie attempt
  234. This may be a silly question...
  235. 1st pre amp build, 1/2 way anyways
  236. Stereo to mono
  237. Tone control schematic with surround sound (?)
  238. Linkwitz Transform Arrangement to optimize subwoofer response
  239. Need help....................
  240. to switch or not?
  241. line transformer matching impedance Icepower 50ASX2
  242. Hot Rodding the Musical Fidelity X-Pre
  243. Any experience with Elliott Sound VCA Pre-Amp
  244. Humm noise on pre McIntosh MX136
  245. Stupid Q ... what determines "signal ground" on a unity gain buffer?
  246. carver C-2 pre hum?
  247. LME49720 preamp for F5
  248. Audio Research LS-1 Schematic & Parts List?
  249. Help for MUSES 72320 DIY kit
  250. Middle Controls

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