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  1. Anyone Ever Heard of a Soho Quatro Preamp?
  2. Help please: need wiring schema for S&B TX-102 TVC
  3. mp3 --> ? Input Transformer ? --> class d
  4. Aikido Octal All in One transformer help
  5. Designing a noob-preamp (single supply)
  6. RIAA Pacific rookie attempt
  7. This may be a silly question...
  8. 1st pre amp build, 1/2 way anyways
  9. Stereo to mono
  10. Tone control schematic with surround sound (?)
  11. Linkwitz Transform Arrangement to optimize subwoofer response
  12. Need help....................
  13. to switch or not?
  14. line transformer matching impedance Icepower 50ASX2
  15. Hot Rodding the Musical Fidelity X-Pre
  16. Any experience with Elliott Sound VCA Pre-Amp
  17. Humm noise on pre McIntosh MX136
  18. Stupid Q ... what determines "signal ground" on a unity gain buffer?
  19. carver C-2 pre hum?
  20. LME49720 preamp for F5
  21. Audio Research LS-1 Schematic & Parts List?
  22. Help for MUSES 72320 DIY kit
  23. Middle Controls
  24. Dual Regulated Bugle Phono Preamp?
  25. How to run line level output to ground
  26. SSM2019BNZ for 'gainy' pre-amp?
  27. DBX Active Crossover
  28. Luxman C1000 preamp starts clicking on and off rapidly after 20 min
  29. Stereo + LFE (2.1)?
  30. Cat5 Audio Line Noise
  31. STP analog audio interconnect ex-Firewire
  32. Octal ccda inclosure build (lots of pics!)
  33. Question about speaker protection kit circuit
  34. Simple Question about Speaker Protection
  35. low pass filter
  36. Checking needed: 2way active crossover
  37. Cermet or conductive plastic
  38. any one have schematic of this cross over?
  39. Forte F-44
  40. multiple devices feeding a single line input
  41. op amp selection?
  42. Sound-card info needed?
  43. Reducing effects of floor vibrations
  44. Preamp kit recommendations
  45. Signal LED causing distortion
  46. Should I be worried about gain structure?
  47. Soundcard input protection circuit
  48. Balanced line receiver (INA134) - RFI caps - compromise between CMRR/RFI filtering
  49. simple questions: integrating pre and power amp
  50. Need help with subwoofer integration with ZAPH AUDIO SR71
  51. ss chinese preamplifiers?
  52. Help with Passive Summing Theory
  53. Exploring possibilities new downward expander design
  54. mark levinson jc2 defect
  55. PreAmp Voltage/Impedance
  56. LOC Vs. Amps High Level Inputs
  57. Preamp design, include gain bypass?
  58. Thoughts on this input selector PCB? How can I add volume control?
  59. Pot imbalance
  60. Power Supply Upgrade - Request Sanity Check
  61. ADC0804 Relay Attenuator
  62. Experience with edcor xsm2.4k-600 as preamp/dac output ?
  63. Baxandall tone topologies
  64. Volume (level) ... the bottom line
  65. Marchand XM-1 mystery parts
  66. Simaudio CP-8 Owners: Did you know that it was a Denon?
  67. Supply voltage vs performance
  68. 10 band equalizer based on LM833
  69. What kind of filter is this
  70. PS III Linear Control Center
  71. How loud?
  72. comparison idea concerning the villex passive booster jack
  73. Finally! the high gain I needed...
  74. John Curl's Blowtorch preamplifier part III
  75. SAE P101 cap replacement-help wanted
  76. Tracing Hum in Passive Line Level Filter
  77. Troubleshooting a preamp - sources of buzz/humm/hiss
  78. High Dc offset voltage on the input line
  79. Potentiometer selection for my diy project
  80. Pre-amp to power amp problem
  81. Op-amp for Single-Rail Supply
  82. what is the best route for a 2.5 system?
  83. Counterpoint SA-3 rebuild
  84. ground "loop" type issue with Android phones into class D amps
  85. Single ended to balanced conversion
  86. Leveling line signals to power amp
  87. OPA2134 Tilt Equalizer
  88. Removing a Crossover from a poweramp
  89. ls404 based active crossover try
  90. Equalizer
  91. Bose 901 Series IV ActiVe EQ schematic
  92. help with diy phono preamp
  93. PGA2310 preamplifier
  94. Opamp Line Attenuator and Buffer Question
  95. Tube Preamp with HT Bypass...
  96. 4 chanel Stereo Input Selector
  97. Bose 901 series I active equalizer DIY
  98. 110db SNR discrete buffered preamplifier with Vclip indicator
  99. 512-MPSA92 Replacement in MOX
  100. Help with "IPOD" in car audio application
  101. Transistor Preamplifier -part values for higher voltage rail.
  102. P37 pre from Elliot --lowering gain
  103. How to buffer the analog out put of a DAC chip
  104. 7.1 Switcher
  105. How to check circuit for oscillation?
  106. How to "Sum" L+R signals for a mono sub output?
  107. need btl schematic using op-amp
  108. 600:10k line stage transformers any use?
  109. JC-2 Clone Build
  110. Carver C1 preamp loud static "pop"
  111. Understanding and optimizing Ashly xover help?
  112. Current Feedback Opamps in simulation and practice.
  113. fluorescent peak meter
  114. DIY Preamp recommendations
  115. Active Crossover Design: How the drivers influence filter type/topology/slope?
  116. Sumo Athena II balanced?
  117. help me, please find a service manual for dbx386 for repair
  118. PGA2310 impedance questions
  119. Remote control kaput?
  120. Pre amplifier or not?
  121. line level strength - big boost required
  122. input selector, to use resistors at the inputs or not
  123. AH Pre line stage
  124. internal cable recommendation
  125. want to make a splitter box for use with mixer inserts
  126. Modding Ecler AC-6 talkover release
  127. ADC Sound Shaper 3 EQ
  128. Schematic wanted for parametric Equalizers from Behringer and IBANEZ
  129. What else? A PGA-preamplifier...
  130. Modding My ADC SS100-SL Equalizer
  131. Preamp Gain for NE5532
  132. Gain regulation on Counterpoint SA3000
  133. Any analog xovers as good as Ashly XR series?
  134. THAT 5171 Controlled By Arduino?
  135. Ground Loop in UREI 1176 compressor
  136. Handling inactive inputs in source selector
  137. How to split output from phono stage
  138. low pass and subsonic filter
  139. BEQ circuit
  140. Adding in RCA Outputs
  141. Wanted: 80Hz Linkwitz-Riley 24hz/octive low-pass filter
  142. Jumper wires & RFI in preamp
  143. Help with component selection for filter
  144. INKEL MX991
  145. Active Crossover Adjustment
  146. CS3318 based preamp - layout
  147. EAD Theatermaster Classic won't operate
  148. filter Q Question
  149. Buffering two signals together
  150. How to bias 2SK170BL in Boozehound Labs phono pre?
  151. Can I make a really simplistic line-level signal go mono one way, stereo in parallel?
  152. Aikido - approximate input impedance
  153. Ultimate analogue tone control or an audiophool overkill? :)
  154. A remote control preamp in the works
  155. Custom Equalizer Design needed
  156. Multichannel preamp
  157. Hafler Iris Preamp balance issue - fixed
  158. Acurus L10 Preamp Mods & Schematic
  159. Home made DSP / FPGA digital audio mixer
  160. Soundcraft LX7 Replacement parts
  161. Bonsai's practical buffer
  162. Help needed with an audio signal splitter solution
  163. Crosstalk?
  164. i want to throw something
  165. Optimizing resistor placement Vishay TX2575
  166. Input impedance of PRE vs sensitivity to disturbance
  167. PIC Controlled PGA 2320 8 Channel Preamp
  168. How to change a degree of volume pot rotation by remote control?
  169. tamura input transformer shield
  170. Need a help: Mark Levinson No26.
  171. LME49720 Pre amp PCB/Kit
  172. Faulty mixer inputs
  173. Basic home cinema wiring advice
  174. Diamond Cascode, a Diamond-like buffer/current booster
  175. Unusual high-pitched whistle caused by my Audio Pre-AMP
  176. Looking to build stereo mixer but can't find many schematics!
  177. Aureus preAmplifier
  178. strange! LM-4562 question
  179. Tube Preamp hummmmmm
  180. LCDuino-1 Processor, using non-latching relays help
  181. CS3318 PCB Layout
  182. Levels in an active three-way system
  183. Source selector using Analog switches or multiplexers - opinions?
  184. Yet another PGA23xx board...
  185. Concentric shaft Alps "Blue" pot
  186. Cleaning dusty printed circuit boards
  187. ad797 plus buf634
  188. Bypass - ceramic or film?
  189. tweeter crossover
  190. This pre-amp good?
  191. Remote Control Pot
  192. VU Meter ballistics
  193. The "AmpDuino" project
  194. Capacitors at 50v vs 25v on replacement in preamp power supply?
  195. Knocking sound coming from PCB
  196. Versatile quad-amp card
  197. 4-channel 20dB gain stage with unbal inputs and unbal+bal outputs: Any Interest?
  198. Just built a Hagerman Cornet 2 phono pre
  199. ad797 questions
  200. [Newbie]Audio bandpass filter design
  201. Wideband DCA preamp with shunt PS
  202. 3-way input selector + Attenuator + Balanced outputs?
  203. subwoofer circuit
  204. Motorised Volume Pot - Controller isolation
  205. Audio compressor to lower TV commercials-help needed
  206. AUS: Alpha 20/10 Preamp & Sigma 22 Builder Required
  207. 2ch passive stereo summing circuit?
  208. designing a 1-Hz lowpass with no DC error
  209. What is a preamp actually doing?
  210. Choosing attenuator for MF X-10D Clone
  211. some questions about DC servo mic pre's
  212. Need hekp with how to select a preamp
  213. Weird problem with a preamp with 3 band EQ module
  214. TEAC VU Meter Hookup
  215. input transformer frequency response?
  216. Help wanted checking vero layout for active 4 channel mixer
  217. Simple non-digital input selector
  218. dc on only one primary of the line trafo
  219. Volume potmeter Technics Su 8600
  220. Servo on non-inverting opamp ?
  221. Any suggestions to improve these output and input filters?
  222. simple solution for VU-Meter
  223. Combined Speaker-Amplifier Project
  224. Teac AN-60 Alignment
  225. 2.5v achieves lower distortion on LDR NSL32SR2
  226. Help Gain clone supply PCB design
  227. HOW TO MEASURE interference between e.g. 20kHz and 21kHz tones?
  228. 3-way signal splitter
  229. implimenting linkwitz's notch/dip filter for room eq
  230. Anyone seen this EQ before?
  231. ReCapping marantz av-9000 16v 13000uf
  232. Audio Processing
  233. Anyone know what these caps are for?
  234. Is coax needed to wire a microphone?
  235. How do I choose a preamplifier that would be compatible with this microphone?
  236. W06M Bridge Rectifier, equivalent substitute
  237. Preamplifier kit information
  238. Handling +4dBu/-10dBv and un/balanced
  239. Line receiver and driver pcb?
  240. 2 conductor shielded cable
  241. HIGHLEVEL INPUT IN PLATE AMP!
  242. 20hz high pass on Ashly XR2000 - removable?
  243. Transformer Based Balanced Output & Impedance
  244. Poll for the participants of "John Curl's Blowtorch preamplifier part II"
  245. John Bowers Active Control Unit preamp: Info sought
  246. Looking for pointers on first DIY preamp please.
  247. Simple analog vu-meter driver ?
  248. Please pardon the noob question. need guidance
  249. Build a high pass filter for amplifier
  250. Critique on success of this subwoofer cutoff project?

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