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  1. How to run line level output to ground
  2. SSM2019BNZ for 'gainy' pre-amp?
  3. DBX Active Crossover
  4. Luxman C1000 preamp starts clicking on and off rapidly after 20 min
  5. Stereo + LFE (2.1)?
  6. Cat5 Audio Line Noise
  7. STP analog audio interconnect ex-Firewire
  8. Octal ccda inclosure build (lots of pics!)
  9. Question about speaker protection kit circuit
  10. Simple Question about Speaker Protection
  11. low pass filter
  12. Checking needed: 2way active crossover
  13. Cermet or conductive plastic
  14. any one have schematic of this cross over?
  15. Forte F-44
  16. multiple devices feeding a single line input
  17. op amp selection?
  18. Sound-card info needed?
  19. Reducing effects of floor vibrations
  20. Preamp kit recommendations
  21. Signal LED causing distortion
  22. Should I be worried about gain structure?
  23. Soundcard input protection circuit
  24. Balanced line receiver (INA134) - RFI caps - compromise between CMRR/RFI filtering
  25. simple questions: integrating pre and power amp
  26. Need help with subwoofer integration with ZAPH AUDIO SR71
  27. ss chinese preamplifiers?
  28. Help with Passive Summing Theory
  29. Exploring possibilities new downward expander design
  30. mark levinson jc2 defect
  31. PreAmp Voltage/Impedance
  32. LOC Vs. Amps High Level Inputs
  33. Preamp design, include gain bypass?
  34. Thoughts on this input selector PCB? How can I add volume control?
  35. Pot imbalance
  36. Power Supply Upgrade - Request Sanity Check
  37. ADC0804 Relay Attenuator
  38. Experience with edcor xsm2.4k-600 as preamp/dac output ?
  39. Baxandall tone topologies
  40. Volume (level) ... the bottom line
  41. Marchand XM-1 mystery parts
  42. Simaudio CP-8 Owners: Did you know that it was a Denon?
  43. Supply voltage vs performance
  44. 10 band equalizer based on LM833
  45. What kind of filter is this
  46. PS III Linear Control Center
  47. How loud?
  48. comparison idea concerning the villex passive booster jack
  49. Finally! the high gain I needed...
  50. John Curl's Blowtorch preamplifier part III
  51. SAE P101 cap replacement-help wanted
  52. Tracing Hum in Passive Line Level Filter
  53. Troubleshooting a preamp - sources of buzz/humm/hiss
  54. High Dc offset voltage on the input line
  55. Potentiometer selection for my diy project
  56. Pre-amp to power amp problem
  57. Op-amp for Single-Rail Supply
  58. what is the best route for a 2.5 system?
  59. Counterpoint SA-3 rebuild
  60. ground "loop" type issue with Android phones into class D amps
  61. Single ended to balanced conversion
  62. Leveling line signals to power amp
  63. OPA2134 Tilt Equalizer
  64. Removing a Crossover from a poweramp
  65. ls404 based active crossover try
  66. Equalizer
  67. Bose 901 Series IV ActiVe EQ schematic
  68. help with diy phono preamp
  69. PGA2310 preamplifier
  70. Opamp Line Attenuator and Buffer Question
  71. Tube Preamp with HT Bypass...
  72. 4 chanel Stereo Input Selector
  73. Bose 901 series I active equalizer DIY
  74. 110db SNR discrete buffered preamplifier with Vclip indicator
  75. 512-MPSA92 Replacement in MOX
  76. Help with "IPOD" in car audio application
  77. Transistor Preamplifier -part values for higher voltage rail.
  78. P37 pre from Elliot --lowering gain
  79. How to buffer the analog out put of a DAC chip
  80. 7.1 Switcher
  81. How to check circuit for oscillation?
  82. How to "Sum" L+R signals for a mono sub output?
  83. need btl schematic using op-amp
  84. 600:10k line stage transformers any use?
  85. JC-2 Clone Build
  86. Carver C1 preamp loud static "pop"
  87. Understanding and optimizing Ashly xover help?
  88. Current Feedback Opamps in simulation and practice.
  89. fluorescent peak meter
  90. DIY Preamp recommendations
  91. Active Crossover Design: How the drivers influence filter type/topology/slope?
  92. Sumo Athena II balanced?
  93. help me, please find a service manual for dbx386 for repair
  94. PGA2310 impedance questions
  95. Remote control kaput?
  96. Pre amplifier or not?
  97. line level strength - big boost required
  98. input selector, to use resistors at the inputs or not
  99. AH Pre line stage
  100. internal cable recommendation
  101. want to make a splitter box for use with mixer inserts
  102. Modding Ecler AC-6 talkover release
  103. ADC Sound Shaper 3 EQ
  104. Schematic wanted for parametric Equalizers from Behringer and IBANEZ
  105. What else? A PGA-preamplifier...
  106. Modding My ADC SS100-SL Equalizer
  107. Preamp Gain for NE5532
  108. Gain regulation on Counterpoint SA3000
  109. Any analog xovers as good as Ashly XR series?
  110. THAT 5171 Controlled By Arduino?
  111. Ground Loop in UREI 1176 compressor
  112. Handling inactive inputs in source selector
  113. How to split output from phono stage
  114. low pass and subsonic filter
  115. BEQ circuit
  116. Adding in RCA Outputs
  117. Wanted: 80Hz Linkwitz-Riley 24hz/octive low-pass filter
  118. Jumper wires & RFI in preamp
  119. Help with component selection for filter
  120. INKEL MX991
  121. Active Crossover Adjustment
  122. CS3318 based preamp - layout
  123. EAD Theatermaster Classic won't operate
  124. filter Q Question
  125. Buffering two signals together
  126. How to bias 2SK170BL in Boozehound Labs phono pre?
  127. Can I make a really simplistic line-level signal go mono one way, stereo in parallel?
  128. Aikido - approximate input impedance
  129. Ultimate analogue tone control or an audiophool overkill? :)
  130. A remote control preamp in the works
  131. Custom Equalizer Design needed
  132. Multichannel preamp
  133. Hafler Iris Preamp balance issue - fixed
  134. Acurus L10 Preamp Mods & Schematic
  135. Home made DSP / FPGA digital audio mixer
  136. Soundcraft LX7 Replacement parts
  137. Bonsai's practical buffer
  138. Help needed with an audio signal splitter solution
  139. Crosstalk?
  140. i want to throw something
  141. Optimizing resistor placement Vishay TX2575
  142. Input impedance of PRE vs sensitivity to disturbance
  143. PIC Controlled PGA 2320 8 Channel Preamp
  144. How to change a degree of volume pot rotation by remote control?
  145. tamura input transformer shield
  146. Need a help: Mark Levinson No26.
  147. LME49720 Pre amp PCB/Kit
  148. Faulty mixer inputs
  149. Basic home cinema wiring advice
  150. Diamond Cascode, a Diamond-like buffer/current booster
  151. Unusual high-pitched whistle caused by my Audio Pre-AMP
  152. Looking to build stereo mixer but can't find many schematics!
  153. Aureus preAmplifier
  154. strange! LM-4562 question
  155. Tube Preamp hummmmmm
  156. LCDuino-1 Processor, using non-latching relays help
  157. CS3318 PCB Layout
  158. Levels in an active three-way system
  159. Source selector using Analog switches or multiplexers - opinions?
  160. Yet another PGA23xx board...
  161. Concentric shaft Alps "Blue" pot
  162. Cleaning dusty printed circuit boards
  163. ad797 plus buf634
  164. Bypass - ceramic or film?
  165. tweeter crossover
  166. This pre-amp good?
  167. Remote Control Pot
  168. VU Meter ballistics
  169. The "AmpDuino" project
  170. Capacitors at 50v vs 25v on replacement in preamp power supply?
  171. Knocking sound coming from PCB
  172. Versatile quad-amp card
  173. 4-channel 20dB gain stage with unbal inputs and unbal+bal outputs: Any Interest?
  174. Just built a Hagerman Cornet 2 phono pre
  175. ad797 questions
  176. [Newbie]Audio bandpass filter design
  177. Wideband DCA preamp with shunt PS
  178. 3-way input selector + Attenuator + Balanced outputs?
  179. subwoofer circuit
  180. Motorised Volume Pot - Controller isolation
  181. Audio compressor to lower TV commercials-help needed
  182. AUS: Alpha 20/10 Preamp & Sigma 22 Builder Required
  183. 2ch passive stereo summing circuit?
  184. designing a 1-Hz lowpass with no DC error
  185. What is a preamp actually doing?
  186. Choosing attenuator for MF X-10D Clone
  187. some questions about DC servo mic pre's
  188. Need hekp with how to select a preamp
  189. Weird problem with a preamp with 3 band EQ module
  190. TEAC VU Meter Hookup
  191. input transformer frequency response?
  192. Help wanted checking vero layout for active 4 channel mixer
  193. Simple non-digital input selector
  194. dc on only one primary of the line trafo
  195. Volume potmeter Technics Su 8600
  196. Servo on non-inverting opamp ?
  197. Any suggestions to improve these output and input filters?
  198. simple solution for VU-Meter
  199. Combined Speaker-Amplifier Project
  200. Teac AN-60 Alignment
  201. 2.5v achieves lower distortion on LDR NSL32SR2
  202. Help Gain clone supply PCB design
  203. HOW TO MEASURE interference between e.g. 20kHz and 21kHz tones?
  204. 3-way signal splitter
  205. implimenting linkwitz's notch/dip filter for room eq
  206. Anyone seen this EQ before?
  207. ReCapping marantz av-9000 16v 13000uf
  208. Audio Processing
  209. Anyone know what these caps are for?
  210. Is coax needed to wire a microphone?
  211. How do I choose a preamplifier that would be compatible with this microphone?
  212. W06M Bridge Rectifier, equivalent substitute
  213. Preamplifier kit information
  214. Handling +4dBu/-10dBv and un/balanced
  215. Line receiver and driver pcb?
  216. 2 conductor shielded cable
  217. HIGHLEVEL INPUT IN PLATE AMP!
  218. 20hz high pass on Ashly XR2000 - removable?
  219. Transformer Based Balanced Output & Impedance
  220. Poll for the participants of "John Curl's Blowtorch preamplifier part II"
  221. John Bowers Active Control Unit preamp: Info sought
  222. Looking for pointers on first DIY preamp please.
  223. Simple analog vu-meter driver ?
  224. Please pardon the noob question. need guidance
  225. Build a high pass filter for amplifier
  226. Critique on success of this subwoofer cutoff project?
  227. Need gain AMOUNT for mobile phone/pc sources
  228. re-replacing 2sk213/j76 transistors help
  229. Preventing crossover between mixers
  230. RCA LMI- 32215 A - for recording studio.
  231. Rane pot help please...
  232. Simple low voltage tube preamp stage
  233. HELP me design a discrete current sinking positive V regulator
  234. True Biamping and Active crossovers info request
  235. Question about hypex balanced vs unbalanced
  236. Soundcraftsmen
  237. very small noob question project 88
  238. Help with cable conundrum!
  239. P7 Pre amp Trouble
  240. Party-line / Full-duplex intercom - mixing audio signals
  241. ZSP1 preamp gain
  242. Acurus L10 Powersupply
  243. Building an Analog to Digital Converter Unit...
  244. DIY pre amp board
  245. Opamp power bypass
  246. Tone Control - Volatage range for TL072/LF252-N
  247. Stereo volume attenuation
  248. Quad channel volume control
  249. Work? L, R RCA inputs -> 1 XLR out?
  250. Impedance matching pre -> power.

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