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  1. Turntable earthing woes
  2. tuac weight and tops preamp
  3. Suggestions for single bipolar input op amp?
  4. Pop/click free HW-based relay attenuator
  5. THAT 1646 PCB - help me review please
  6. new line-preamp
  7. Question on Rod Elliott's P088 op-amp based preamp
  8. Pot hum/external speakers
  9. Will this circuit work?
  10. wiring sub to tube stereo
  11. TI on Filter Noise
  12. Compressor design - Sedra/Smith book
  13. ultra low dist pre Sandman distortion null
  14. Grounding question in phono preamp with battery supply
  15. LME49990 in gain buffer - help please
  16. Khozomo MKII Attenuator review
  17. Which MM Phono Amp ?
  18. Transistors in Buffer Circuit Running Too Hot
  19. Building a complete Preamp with an Arduino, remote, volume and input control
  20. MOSFET's Rds in the signal path, when?
  21. Preferences for setting up an EQ
  22. One more volume control
  23. Shedding 2 awful junctions in the signal path
  24. Line level distribution
  25. INA217 gain calculation
  26. Does this circuit have gain?
  27. An interesting JFET-based active XO circuit from TNT Audio
  28. Peak detector reference voltage level
  29. Goldmund Mimesis 27 Preamp clone
  30. AKAI S3200XL unbal to balanced outputs with VT24499
  31. MooseFET preamplifier?
  32. 6ch(12ch) Volume Control for DSP/DAC/BUFFER/POWERAMP
  33. Parametric EQ after pre-amp
  34. TL072 VS NE5532
  35. Grounding question
  36. Need best tone control
  37. How to switch 2 Sources and 2 Amps
  38. Mic Preamp limitor/Automatic level controller
  39. Douglas Self PreAmp 2012
  40. Is this layout OK? Advice please :)
  41. Microphone Preamp balanced voltage levels
  42. PASSIVE PRE-AMPLIFIER BUILDER REQ
  43. active bass boost
  44. SSM2019 single chip preamplifier?
  45. Rane AC23B active crossover
  46. XD3 crossover?
  47. Muting Circuit
  48. Noticeable difference in low freqs between two channels on a Drawmer DL221 compressor
  49. The precise audio signal level control 5.1
  50. Yamaha a-320
  51. Why not Wye?
  52. Help with high DC at output of Forte clone
  53. Humming DRV134 balanced output.
  54. Problem with parametric equalizer
  55. HLLY AMK-II First (and last) Impressions
  56. Salas hotrodded DCB1 resistor tryouts
  57. NE5532 in quad TSSOP package or similar?
  58. Another low distortion buffer
  59. DBX-122 schematic
  60. Audible Illusions L1 background noise
  61. TDA1524A IC Pre-Amp
  62. Please confirm something basic for me
  63. Parasound P/PH-100 hum
  64. Sonographe SC22 schematics
  65. What makes Reference Line Preeminence so good?
  66. push switch pinout
  67. What is 'Good' Common Mode Rejection?
  68. mf x-p100 power supply
  69. Opamp Having Oscillation
  70. Yamaha MSP7 − 22pF between Op Amp inputs? Why?
  71. How to reduce measured noise floor in my DAC/opamp circuit
  72. Switch Types
  73. Simple MOSFET preamp
  74. The Kuartlotron - keantoken's simple error-correction superbuffer
  75. how much gain do i get on this preamp(ad797)?
  76. how to implement line level bsc on a full balanced setup?
  77. 3 channel quad mixer with front to rear pan
  78. Meridian 502 balanced output circuit
  79. kmtech 2 way, active x over, is it elliptical?
  80. Attenuator kit suggestions sought
  81. How do you create a low shelf with passives?
  82. harman opamp advice
  83. Help needed with a transamp mic preamp circuit.
  84. Kleos 2 Way JFET Crossover with EQ
  85. see this preamp circuit diagram
  86. pre-amp tune up
  87. Preamplifier with aux and mic inputs
  88. Schematic wanted for portable SONY Monaural Receiver ICF-6000L
  89. Need a high quality SS mic preamp kit
  90. Marantz 2270 Preamp
  91. Source selector without mechanical switch
  92. Imaging skewed to the left
  93. THD calc from spectrum analyzer help
  94. A question regarding "loudness"
  95. Did I put these back in the correct spots?
  96. Lookin for nice simple XLR out preamp?
  97. Boz preamp and PLLXO
  98. Sound City studios/Neve etc Documentary
  99. Adding a tube preamp to a solid state combo amp
  100. BAT VK-32SE
  101. The Heavy Cross - ideas about a transconductance phase-splitting amp
  102. Tip on high amplification, low distortion, single-ended, no feedback circuitry?
  103. PC900 tube as a preamp...pictures
  104. Input transformer for summing amp
  105. Stereo to mono summing, which end to sum?
  106. Bass distortion when using digital pot
  107. need help with mute circuit for preamp
  108. JC2 v1.6 preamplifier build
  109. 3-pin balanced XLR - gender conventions
  110. help getting to 47kohm impedance
  111. Volume Control and Sound Quality
  112. Solid State Phono Stage
  113. Balanced ladder attenuator, make before brake question
  114. Standard spacing for XLR connectors
  115. Basic Pre-Amp Kit
  116. Single to differential into amp - transformer or dual opamp
  117. JFET follower Baffle Step Possible? Bass Boost?
  118. Op amps for active Xover and line drivers
  119. crossover buffer question
  120. Balanced LDR attenuator
  121. I'd like to add an Analog In and Out Section to an Elite 62FD Player
  122. Advice needed: mixed order Linkwitz Riley crossover
  123. Best-Sounding RC Attenuator & Source Selection System
  124. Ultra Low Noise - Ultra Low Impedance - Ultra big Problems!
  125. Anyone Ever Heard of a Soho Quatro Preamp?
  126. Help please: need wiring schema for S&B TX-102 TVC
  127. mp3 --> ? Input Transformer ? --> class d
  128. Aikido Octal All in One transformer help
  129. Designing a noob-preamp (single supply)
  130. RIAA Pacific rookie attempt
  131. This may be a silly question...
  132. 1st pre amp build, 1/2 way anyways
  133. Stereo to mono
  134. Tone control schematic with surround sound (?)
  135. Linkwitz Transform Arrangement to optimize subwoofer response
  136. Need help....................
  137. to switch or not?
  138. line transformer matching impedance Icepower 50ASX2
  139. Hot Rodding the Musical Fidelity X-Pre
  140. Any experience with Elliott Sound VCA Pre-Amp
  141. Humm noise on pre McIntosh MX136
  142. Stupid Q ... what determines "signal ground" on a unity gain buffer?
  143. carver C-2 pre hum?
  144. LME49720 preamp for F5
  145. Audio Research LS-1 Schematic & Parts List?
  146. Help for MUSES 72320 DIY kit
  147. Middle Controls
  148. Dual Regulated Bugle Phono Preamp?
  149. How to run line level output to ground
  150. SSM2019BNZ for 'gainy' pre-amp?
  151. DBX Active Crossover
  152. Luxman C1000 preamp starts clicking on and off rapidly after 20 min
  153. Stereo + LFE (2.1)?
  154. Cat5 Audio Line Noise
  155. STP analog audio interconnect ex-Firewire
  156. Octal ccda inclosure build (lots of pics!)
  157. Question about speaker protection kit circuit
  158. Simple Question about Speaker Protection
  159. low pass filter
  160. Checking needed: 2way active crossover
  161. Cermet or conductive plastic
  162. any one have schematic of this cross over?
  163. Forte F-44
  164. multiple devices feeding a single line input
  165. op amp selection?
  166. Sound-card info needed?
  167. Reducing effects of floor vibrations
  168. Preamp kit recommendations
  169. Signal LED causing distortion
  170. Should I be worried about gain structure?
  171. Soundcard input protection circuit
  172. Balanced line receiver (INA134) - RFI caps - compromise between CMRR/RFI filtering
  173. simple questions: integrating pre and power amp
  174. Need help with subwoofer integration with ZAPH AUDIO SR71
  175. ss chinese preamplifiers?
  176. Help with Passive Summing Theory
  177. Exploring possibilities new downward expander design
  178. mark levinson jc2 defect
  179. PreAmp Voltage/Impedance
  180. LOC Vs. Amps High Level Inputs
  181. Preamp design, include gain bypass?
  182. Thoughts on this input selector PCB? How can I add volume control?
  183. Pot imbalance
  184. Power Supply Upgrade - Request Sanity Check
  185. ADC0804 Relay Attenuator
  186. Experience with edcor xsm2.4k-600 as preamp/dac output ?
  187. Baxandall tone topologies
  188. Volume (level) ... the bottom line
  189. Marchand XM-1 mystery parts
  190. Simaudio CP-8 Owners: Did you know that it was a Denon?
  191. Supply voltage vs performance
  192. 10 band equalizer based on LM833
  193. What kind of filter is this
  194. PS III Linear Control Center
  195. How loud?
  196. comparison idea concerning the villex passive booster jack
  197. Finally! the high gain I needed...
  198. John Curl's Blowtorch preamplifier part III
  199. SAE P101 cap replacement-help wanted
  200. Tracing Hum in Passive Line Level Filter
  201. Troubleshooting a preamp - sources of buzz/humm/hiss
  202. High Dc offset voltage on the input line
  203. Potentiometer selection for my diy project
  204. Pre-amp to power amp problem
  205. Op-amp for Single-Rail Supply
  206. what is the best route for a 2.5 system?
  207. Counterpoint SA-3 rebuild
  208. ground "loop" type issue with Android phones into class D amps
  209. Single ended to balanced conversion
  210. Leveling line signals to power amp
  211. OPA2134 Tilt Equalizer
  212. Removing a Crossover from a poweramp
  213. ls404 based active crossover try
  214. Equalizer
  215. Bose 901 Series IV ActiVe EQ schematic
  216. help with diy phono preamp
  217. PGA2310 preamplifier
  218. Opamp Line Attenuator and Buffer Question
  219. Tube Preamp with HT Bypass...
  220. 4 chanel Stereo Input Selector
  221. Bose 901 series I active equalizer DIY
  222. 110db SNR discrete buffered preamplifier with Vclip indicator
  223. 512-MPSA92 Replacement in MOX
  224. Help with "IPOD" in car audio application
  225. Transistor Preamplifier -part values for higher voltage rail.
  226. P37 pre from Elliot --lowering gain
  227. How to buffer the analog out put of a DAC chip
  228. 7.1 Switcher
  229. How to check circuit for oscillation?
  230. How to "Sum" L+R signals for a mono sub output?
  231. need btl schematic using op-amp
  232. 600:10k line stage transformers any use?
  233. JC-2 Clone Build
  234. Carver C1 preamp loud static "pop"
  235. Understanding and optimizing Ashly xover help?
  236. Current Feedback Opamps in simulation and practice.
  237. fluorescent peak meter
  238. DIY Preamp recommendations
  239. Active Crossover Design: How the drivers influence filter type/topology/slope?
  240. Sumo Athena II balanced?
  241. help me, please find a service manual for dbx386 for repair
  242. PGA2310 impedance questions
  243. Remote control kaput?
  244. Pre amplifier or not?
  245. line level strength - big boost required
  246. input selector, to use resistors at the inputs or not
  247. AH Pre line stage
  248. internal cable recommendation
  249. want to make a splitter box for use with mixer inserts
  250. Modding Ecler AC-6 talkover release

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