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  1. Boz preamp and PLLXO
  2. Sound City studios/Neve etc Documentary
  3. Adding a tube preamp to a solid state combo amp
  4. BAT VK-32SE
  5. The Heavy Cross - ideas about a transconductance phase-splitting amp
  6. Tip on high amplification, low distortion, single-ended, no feedback circuitry?
  7. PC900 tube as a preamp...pictures
  8. Input transformer for summing amp
  9. Stereo to mono summing, which end to sum?
  10. Bass distortion when using digital pot
  11. need help with mute circuit for preamp
  12. JC2 v1.6 preamplifier build
  13. 3-pin balanced XLR - gender conventions
  14. help getting to 47kohm impedance
  15. Volume Control and Sound Quality
  16. Solid State Phono Stage
  17. Balanced ladder attenuator, make before brake question
  18. Standard spacing for XLR connectors
  19. Basic Pre-Amp Kit
  20. Single to differential into amp - transformer or dual opamp
  21. JFET follower Baffle Step Possible? Bass Boost?
  22. Op amps for active Xover and line drivers
  23. crossover buffer question
  24. Balanced LDR attenuator
  25. I'd like to add an Analog In and Out Section to an Elite 62FD Player
  26. Advice needed: mixed order Linkwitz Riley crossover
  27. Best-Sounding RC Attenuator & Source Selection System
  28. Ultra Low Noise - Ultra Low Impedance - Ultra big Problems!
  29. Anyone Ever Heard of a Soho Quatro Preamp?
  30. Help please: need wiring schema for S&B TX-102 TVC
  31. mp3 --> ? Input Transformer ? --> class d
  32. Aikido Octal All in One transformer help
  33. Designing a noob-preamp (single supply)
  34. RIAA Pacific rookie attempt
  35. This may be a silly question...
  36. 1st pre amp build, 1/2 way anyways
  37. Stereo to mono
  38. Tone control schematic with surround sound (?)
  39. Linkwitz Transform Arrangement to optimize subwoofer response
  40. Need help....................
  41. to switch or not?
  42. line transformer matching impedance Icepower 50ASX2
  43. Hot Rodding the Musical Fidelity X-Pre
  44. Any experience with Elliott Sound VCA Pre-Amp
  45. Humm noise on pre McIntosh MX136
  46. Stupid Q ... what determines "signal ground" on a unity gain buffer?
  47. carver C-2 pre hum?
  48. LME49720 preamp for F5
  49. Audio Research LS-1 Schematic & Parts List?
  50. Help for MUSES 72320 DIY kit
  51. Middle Controls
  52. Dual Regulated Bugle Phono Preamp?
  53. How to run line level output to ground
  54. SSM2019BNZ for 'gainy' pre-amp?
  55. DBX Active Crossover
  56. Luxman C1000 preamp starts clicking on and off rapidly after 20 min
  57. Stereo + LFE (2.1)?
  58. Cat5 Audio Line Noise
  59. STP analog audio interconnect ex-Firewire
  60. Octal ccda inclosure build (lots of pics!)
  61. Question about speaker protection kit circuit
  62. Simple Question about Speaker Protection
  63. low pass filter
  64. Checking needed: 2way active crossover
  65. Cermet or conductive plastic
  66. any one have schematic of this cross over?
  67. Forte F-44
  68. multiple devices feeding a single line input
  69. op amp selection?
  70. Sound-card info needed?
  71. Reducing effects of floor vibrations
  72. Preamp kit recommendations
  73. Signal LED causing distortion
  74. Should I be worried about gain structure?
  75. Soundcard input protection circuit
  76. Balanced line receiver (INA134) - RFI caps - compromise between CMRR/RFI filtering
  77. simple questions: integrating pre and power amp
  78. Need help with subwoofer integration with ZAPH AUDIO SR71
  79. ss chinese preamplifiers?
  80. Help with Passive Summing Theory
  81. Exploring possibilities new downward expander design
  82. mark levinson jc2 defect
  83. PreAmp Voltage/Impedance
  84. LOC Vs. Amps High Level Inputs
  85. Preamp design, include gain bypass?
  86. Thoughts on this input selector PCB? How can I add volume control?
  87. Pot imbalance
  88. Power Supply Upgrade - Request Sanity Check
  89. ADC0804 Relay Attenuator
  90. Experience with edcor xsm2.4k-600 as preamp/dac output ?
  91. Baxandall tone topologies
  92. Volume (level) ... the bottom line
  93. Marchand XM-1 mystery parts
  94. Simaudio CP-8 Owners: Did you know that it was a Denon?
  95. Supply voltage vs performance
  96. 10 band equalizer based on LM833
  97. What kind of filter is this
  98. PS III Linear Control Center
  99. How loud?
  100. comparison idea concerning the villex passive booster jack
  101. Finally! the high gain I needed...
  102. John Curl's Blowtorch preamplifier part III
  103. SAE P101 cap replacement-help wanted
  104. Tracing Hum in Passive Line Level Filter
  105. Troubleshooting a preamp - sources of buzz/humm/hiss
  106. High Dc offset voltage on the input line
  107. Potentiometer selection for my diy project
  108. Pre-amp to power amp problem
  109. Op-amp for Single-Rail Supply
  110. what is the best route for a 2.5 system?
  111. Counterpoint SA-3 rebuild
  112. ground "loop" type issue with Android phones into class D amps
  113. Single ended to balanced conversion
  114. Leveling line signals to power amp
  115. OPA2134 Tilt Equalizer
  116. Removing a Crossover from a poweramp
  117. ls404 based active crossover try
  118. Equalizer
  119. Bose 901 Series IV ActiVe EQ schematic
  120. help with diy phono preamp
  121. PGA2310 preamplifier
  122. Opamp Line Attenuator and Buffer Question
  123. Tube Preamp with HT Bypass...
  124. 4 chanel Stereo Input Selector
  125. Bose 901 series I active equalizer DIY
  126. 110db SNR discrete buffered preamplifier with Vclip indicator
  127. 512-MPSA92 Replacement in MOX
  128. Help with "IPOD" in car audio application
  129. Transistor Preamplifier -part values for higher voltage rail.
  130. P37 pre from Elliot --lowering gain
  131. How to buffer the analog out put of a DAC chip
  132. 7.1 Switcher
  133. How to check circuit for oscillation?
  134. How to "Sum" L+R signals for a mono sub output?
  135. need btl schematic using op-amp
  136. 600:10k line stage transformers any use?
  137. JC-2 Clone Build
  138. Carver C1 preamp loud static "pop"
  139. Understanding and optimizing Ashly xover help?
  140. Current Feedback Opamps in simulation and practice.
  141. fluorescent peak meter
  142. DIY Preamp recommendations
  143. Active Crossover Design: How the drivers influence filter type/topology/slope?
  144. Sumo Athena II balanced?
  145. help me, please find a service manual for dbx386 for repair
  146. PGA2310 impedance questions
  147. Remote control kaput?
  148. Pre amplifier or not?
  149. line level strength - big boost required
  150. input selector, to use resistors at the inputs or not
  151. AH Pre line stage
  152. internal cable recommendation
  153. want to make a splitter box for use with mixer inserts
  154. Modding Ecler AC-6 talkover release
  155. ADC Sound Shaper 3 EQ
  156. Schematic wanted for parametric Equalizers from Behringer and IBANEZ
  157. What else? A PGA-preamplifier...
  158. Modding My ADC SS100-SL Equalizer
  159. Preamp Gain for NE5532
  160. Gain regulation on Counterpoint SA3000
  161. Any analog xovers as good as Ashly XR series?
  162. THAT 5171 Controlled By Arduino?
  163. Ground Loop in UREI 1176 compressor
  164. Handling inactive inputs in source selector
  165. How to split output from phono stage
  166. low pass and subsonic filter
  167. BEQ circuit
  168. Adding in RCA Outputs
  169. Wanted: 80Hz Linkwitz-Riley 24hz/octive low-pass filter
  170. Jumper wires & RFI in preamp
  171. Help with component selection for filter
  172. INKEL MX991
  173. Active Crossover Adjustment
  174. CS3318 based preamp - layout
  175. EAD Theatermaster Classic won't operate
  176. filter Q Question
  177. Buffering two signals together
  178. How to bias 2SK170BL in Boozehound Labs phono pre?
  179. Can I make a really simplistic line-level signal go mono one way, stereo in parallel?
  180. Aikido - approximate input impedance
  181. Ultimate analogue tone control or an audiophool overkill? :)
  182. A remote control preamp in the works
  183. Custom Equalizer Design needed
  184. Multichannel preamp
  185. Hafler Iris Preamp balance issue - fixed
  186. Acurus L10 Preamp Mods & Schematic
  187. Home made DSP / FPGA digital audio mixer
  188. Soundcraft LX7 Replacement parts
  189. Bonsai's practical buffer
  190. Help needed with an audio signal splitter solution
  191. Crosstalk?
  192. i want to throw something
  193. Optimizing resistor placement Vishay TX2575
  194. Input impedance of PRE vs sensitivity to disturbance
  195. PIC Controlled PGA 2320 8 Channel Preamp
  196. How to change a degree of volume pot rotation by remote control?
  197. tamura input transformer shield
  198. Need a help: Mark Levinson No26.
  199. LME49720 Pre amp PCB/Kit
  200. Faulty mixer inputs
  201. Basic home cinema wiring advice
  202. Diamond Cascode, a Diamond-like buffer/current booster
  203. Unusual high-pitched whistle caused by my Audio Pre-AMP
  204. Looking to build stereo mixer but can't find many schematics!
  205. Aureus preAmplifier
  206. strange! LM-4562 question
  207. Tube Preamp hummmmmm
  208. LCDuino-1 Processor, using non-latching relays help
  209. CS3318 PCB Layout
  210. Levels in an active three-way system
  211. Source selector using Analog switches or multiplexers - opinions?
  212. Yet another PGA23xx board...
  213. Concentric shaft Alps "Blue" pot
  214. Cleaning dusty printed circuit boards
  215. ad797 plus buf634
  216. Bypass - ceramic or film?
  217. tweeter crossover
  218. This pre-amp good?
  219. Remote Control Pot
  220. VU Meter ballistics
  221. The "AmpDuino" project
  222. Capacitors at 50v vs 25v on replacement in preamp power supply?
  223. Knocking sound coming from PCB
  224. Versatile quad-amp card
  225. 4-channel 20dB gain stage with unbal inputs and unbal+bal outputs: Any Interest?
  226. Just built a Hagerman Cornet 2 phono pre
  227. ad797 questions
  228. [Newbie]Audio bandpass filter design
  229. Wideband DCA preamp with shunt PS
  230. 3-way input selector + Attenuator + Balanced outputs?
  231. subwoofer circuit
  232. Motorised Volume Pot - Controller isolation
  233. Audio compressor to lower TV commercials-help needed
  234. AUS: Alpha 20/10 Preamp & Sigma 22 Builder Required
  235. 2ch passive stereo summing circuit?
  236. designing a 1-Hz lowpass with no DC error
  237. What is a preamp actually doing?
  238. Choosing attenuator for MF X-10D Clone
  239. some questions about DC servo mic pre's
  240. Need hekp with how to select a preamp
  241. Weird problem with a preamp with 3 band EQ module
  242. TEAC VU Meter Hookup
  243. input transformer frequency response?
  244. Help wanted checking vero layout for active 4 channel mixer
  245. Simple non-digital input selector
  246. dc on only one primary of the line trafo
  247. Volume potmeter Technics Su 8600
  248. Servo on non-inverting opamp ?
  249. Any suggestions to improve these output and input filters?
  250. simple solution for VU-Meter

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