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  1. PS III Linear Control Center
  2. How loud?
  3. comparison idea concerning the villex passive booster jack
  4. Finally! the high gain I needed...
  5. John Curl's Blowtorch preamplifier part III
  6. SAE P101 cap replacement-help wanted
  7. Tracing Hum in Passive Line Level Filter
  8. Troubleshooting a preamp - sources of buzz/humm/hiss
  9. High Dc offset voltage on the input line
  10. Potentiometer selection for my diy project
  11. Pre-amp to power amp problem
  12. Op-amp for Single-Rail Supply
  13. what is the best route for a 2.5 system?
  14. Counterpoint SA-3 rebuild
  15. ground "loop" type issue with Android phones into class D amps
  16. Single ended to balanced conversion
  17. Leveling line signals to power amp
  18. OPA2134 Tilt Equalizer
  19. Removing a Crossover from a poweramp
  20. ls404 based active crossover try
  21. Equalizer
  22. Bose 901 Series IV ActiVe EQ schematic
  23. help with diy phono preamp
  24. PGA2310 preamplifier
  25. Opamp Line Attenuator and Buffer Question
  26. Tube Preamp with HT Bypass...
  27. 4 chanel Stereo Input Selector
  28. Bose 901 series I active equalizer DIY
  29. 110db SNR discrete buffered preamplifier with Vclip indicator
  30. 512-MPSA92 Replacement in MOX
  31. Help with "IPOD" in car audio application
  32. Transistor Preamplifier -part values for higher voltage rail.
  33. P37 pre from Elliot --lowering gain
  34. How to buffer the analog out put of a DAC chip
  35. 7.1 Switcher
  36. How to check circuit for oscillation?
  37. How to "Sum" L+R signals for a mono sub output?
  38. need btl schematic using op-amp
  39. 600:10k line stage transformers any use?
  40. JC-2 Clone Build
  41. Carver C1 preamp loud static "pop"
  42. Understanding and optimizing Ashly xover help?
  43. Current Feedback Opamps in simulation and practice.
  44. fluorescent peak meter
  45. DIY Preamp recommendations
  46. Active Crossover Design: How the drivers influence filter type/topology/slope?
  47. Sumo Athena II balanced?
  48. help me, please find a service manual for dbx386 for repair
  49. PGA2310 impedance questions
  50. Remote control kaput?
  51. Pre amplifier or not?
  52. line level strength - big boost required
  53. input selector, to use resistors at the inputs or not
  54. AH Pre line stage
  55. internal cable recommendation
  56. want to make a splitter box for use with mixer inserts
  57. Modding Ecler AC-6 talkover release
  58. ADC Sound Shaper 3 EQ
  59. Schematic wanted for parametric Equalizers from Behringer and IBANEZ
  60. What else? A PGA-preamplifier...
  61. Modding My ADC SS100-SL Equalizer
  62. Preamp Gain for NE5532
  63. Gain regulation on Counterpoint SA3000
  64. Any analog xovers as good as Ashly XR series?
  65. THAT 5171 Controlled By Arduino?
  66. Ground Loop in UREI 1176 compressor
  67. Handling inactive inputs in source selector
  68. How to split output from phono stage
  69. low pass and subsonic filter
  70. BEQ circuit
  71. Adding in RCA Outputs
  72. Wanted: 80Hz Linkwitz-Riley 24hz/octive low-pass filter
  73. Jumper wires & RFI in preamp
  74. Help with component selection for filter
  75. INKEL MX991
  76. Active Crossover Adjustment
  77. CS3318 based preamp - layout
  78. EAD Theatermaster Classic won't operate
  79. filter Q Question
  80. Buffering two signals together
  81. How to bias 2SK170BL in Boozehound Labs phono pre?
  82. Can I make a really simplistic line-level signal go mono one way, stereo in parallel?
  83. Aikido - approximate input impedance
  84. Ultimate analogue tone control or an audiophool overkill? :)
  85. A remote control preamp in the works
  86. Custom Equalizer Design needed
  87. Multichannel preamp
  88. Hafler Iris Preamp balance issue - fixed
  89. Acurus L10 Preamp Mods & Schematic
  90. Home made DSP / FPGA digital audio mixer
  91. Soundcraft LX7 Replacement parts
  92. Bonsai's practical buffer
  93. Help needed with an audio signal splitter solution
  94. Crosstalk?
  95. i want to throw something
  96. Optimizing resistor placement Vishay TX2575
  97. Input impedance of PRE vs sensitivity to disturbance
  98. PIC Controlled PGA 2320 8 Channel Preamp
  99. How to change a degree of volume pot rotation by remote control?
  100. tamura input transformer shield
  101. Need a help: Mark Levinson No26.
  102. LME49720 Pre amp PCB/Kit
  103. Faulty mixer inputs
  104. Basic home cinema wiring advice
  105. Diamond Cascode, a Diamond-like buffer/current booster
  106. Unusual high-pitched whistle caused by my Audio Pre-AMP
  107. Looking to build stereo mixer but can't find many schematics!
  108. Aureus preAmplifier
  109. strange! LM-4562 question
  110. Tube Preamp hummmmmm
  111. LCDuino-1 Processor, using non-latching relays help
  112. CS3318 PCB Layout
  113. Levels in an active three-way system
  114. Source selector using Analog switches or multiplexers - opinions?
  115. Yet another PGA23xx board...
  116. Concentric shaft Alps "Blue" pot
  117. Cleaning dusty printed circuit boards
  118. ad797 plus buf634
  119. Bypass - ceramic or film?
  120. tweeter crossover
  121. This pre-amp good?
  122. Remote Control Pot
  123. VU Meter ballistics
  124. The "AmpDuino" project
  125. Capacitors at 50v vs 25v on replacement in preamp power supply?
  126. Knocking sound coming from PCB
  127. Versatile quad-amp card
  128. 4-channel 20dB gain stage with unbal inputs and unbal+bal outputs: Any Interest?
  129. Just built a Hagerman Cornet 2 phono pre
  130. ad797 questions
  131. [Newbie]Audio bandpass filter design
  132. Wideband DCA preamp with shunt PS
  133. 3-way input selector + Attenuator + Balanced outputs?
  134. subwoofer circuit
  135. Motorised Volume Pot - Controller isolation
  136. Audio compressor to lower TV commercials-help needed
  137. AUS: Alpha 20/10 Preamp & Sigma 22 Builder Required
  138. 2ch passive stereo summing circuit?
  139. designing a 1-Hz lowpass with no DC error
  140. What is a preamp actually doing?
  141. Choosing attenuator for MF X-10D Clone
  142. some questions about DC servo mic pre's
  143. Need hekp with how to select a preamp
  144. Weird problem with a preamp with 3 band EQ module
  145. TEAC VU Meter Hookup
  146. input transformer frequency response?
  147. Help wanted checking vero layout for active 4 channel mixer
  148. Simple non-digital input selector
  149. dc on only one primary of the line trafo
  150. Volume potmeter Technics Su 8600
  151. Servo on non-inverting opamp ?
  152. Any suggestions to improve these output and input filters?
  153. simple solution for VU-Meter
  154. Combined Speaker-Amplifier Project
  155. Teac AN-60 Alignment
  156. 2.5v achieves lower distortion on LDR NSL32SR2
  157. Help Gain clone supply PCB design
  158. HOW TO MEASURE interference between e.g. 20kHz and 21kHz tones?
  159. 3-way signal splitter
  160. implimenting linkwitz's notch/dip filter for room eq
  161. Anyone seen this EQ before?
  162. ReCapping marantz av-9000 16v 13000uf
  163. Audio Processing
  164. Anyone know what these caps are for?
  165. Is coax needed to wire a microphone?
  166. How do I choose a preamplifier that would be compatible with this microphone?
  167. W06M Bridge Rectifier, equivalent substitute
  168. Preamplifier kit information
  169. Handling +4dBu/-10dBv and un/balanced
  170. Line receiver and driver pcb?
  171. 2 conductor shielded cable
  172. HIGHLEVEL INPUT IN PLATE AMP!
  173. 20hz high pass on Ashly XR2000 - removable?
  174. Transformer Based Balanced Output & Impedance
  175. Poll for the participants of "John Curl's Blowtorch preamplifier part II"
  176. John Bowers Active Control Unit preamp: Info sought
  177. Looking for pointers on first DIY preamp please.
  178. Simple analog vu-meter driver ?
  179. Please pardon the noob question. need guidance
  180. Build a high pass filter for amplifier
  181. Critique on success of this subwoofer cutoff project?
  182. Need gain AMOUNT for mobile phone/pc sources
  183. re-replacing 2sk213/j76 transistors help
  184. Preventing crossover between mixers
  185. RCA LMI- 32215 A - for recording studio.
  186. Rane pot help please...
  187. Simple low voltage tube preamp stage
  188. HELP me design a discrete current sinking positive V regulator
  189. True Biamping and Active crossovers info request
  190. Question about hypex balanced vs unbalanced
  191. Soundcraftsmen
  192. very small noob question project 88
  193. Help with cable conundrum!
  194. P7 Pre amp Trouble
  195. Party-line / Full-duplex intercom - mixing audio signals
  196. ZSP1 preamp gain
  197. Acurus L10 Powersupply
  198. Building an Analog to Digital Converter Unit...
  199. DIY pre amp board
  200. Opamp power bypass
  201. Tone Control - Volatage range for TL072/LF252-N
  202. Stereo volume attenuation
  203. Quad channel volume control
  204. Work? L, R RCA inputs -> 1 XLR out?
  205. Impedance matching pre -> power.
  206. LME49740 vs TL074, design considerations and stability
  207. Solid state R2R attenuator using analog switches or multiplying DAC
  208. MF nuvista source selector problem again
  209. What do we think about solid-state potentiometers?
  210. TubeCAD's ACF2 as a active crossover
  211. Phaseca--My new diy pre amp
  212. looking for bass treble pcb pattern
  213. Mobile recording using linein
  214. [Need] simple preamp and LPF based on 5532 for digital sources
  215. wall-based trasformer volume control as passive pre?
  216. noob stab in the dark - riaa preamp
  217. Oscillating Op-Amp
  218. Preamp for shotgun mic
  219. Mark Levinson No 38, Need Help
  220. Help! Kenwood Basic C-2 left channel out (phono only)
  221. Signal delay schematic
  222. Adding 4 channels to a 2 channel input on HT amp
  223. vumeter (stereo, mono)
  224. Acquired Some Elan Components, What are They?
  225. Pre-mix for boombox
  226. Reed Switch Audio Attenuator
  227. "Balanced" PGA2311?
  228. 2 way crossover on Chinese pcbs
  229. SE to Balanced pre question
  230. Interconnect Ground Cable Ground Loops
  231. PGA2310 - PGA2311 - CS3310: version without OPAMP for outdoor OPAmp connection wanted
  232. Any AIKIDO-philes who know why Broskie has changed the formula
  233. One More Overcomplicated Mic Preamp
  234. Problems with subwoofer phase control picking up noise
  235. IC's get hammered
  236. Left/Right channel balance control
  237. Potentiometer Selection
  238. All-In-One Preamp Circuit
  239. Line level mixing
  240. Booze Hounds Labs Phono any good?
  241. PLLXO - Am I doing this right?
  242. Need an Active 2nd Order Low Shelf Filter aka Low Shelving Filter
  243. Switching Noise Between Preamps
  244. Bluetooth Lightspeed attenuator
  245. Help getting 5.1 preamp from Ebay repaired please!
  246. Should using balanced cables to amplified monitors improve sound ?
  247. Apox Audio preamp reborn with the power of Arduino
  248. Does an Op Amp Voltage Follower Operate in Class A?
  249. My boozehound phono stage build
  250. Pre amp kit

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