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  1. How to select the right impedance for volume control
  2. In vehicle Pre-amp for mic (12+ VDC)
  3. Resistor-Diode-Relay Logic Source Selector
  4. 3 into 1 input the other way round
  5. Nagging Ground Issue
  6. Looking for Princeton Applied Research 115 MANUAL
  7. Active Band Pass Filter with +/- Gain
  8. Components source
  9. Guitar ABY or Headphone Amplifier?
  10. rod elliot p88 preamp knob arrangment
  11. C-Mos opamps in audio preamplifiers
  12. Cheap, balanced XLR passive pre?
  13. DIY crossover - Sallen-Key?
  14. Hafler 915 preamp cap question
  15. analog 3.5mm to digital usb possible?
  16. Mixer Pre-amp
  17. DIY tube preamp - help with choosing the right kit
  18. opamp channels mysteriously mixing ¿quantum thing or me too dumb?
  19. MC-22 schematic question
  20. unbalanced/balanced to balanced converter
  21. My line buffer preamp
  22. Attenuating Preamp Filter Question
  23. biamping with one DAC
  24. Audiophile active crossover
  25. adding EQ without screwing up sound; few questions...
  26. SSTART Pcb and power supply project
  27. Help with a simple envelop detector filter. (averaging the signal)
  28. audio output switch? Monitor Controller
  29. Very simple volume control with IR remote
  30. JFETs and MOSFETs biasing questions
  31. I need advise on audio mixing boards?
  32. pre amp output
  33. OPA134 Amp Help
  34. OPA134
  35. Capacitors voltage rating
  36. Capacitors voltage rating
  37. attenuation on dac output with U-pad
  38. passive preamp
  39. preamp necessary?
  40. Will phono pre > passive pre > amp work well enough?
  41. 60Hz hum problem, please help
  42. distortion cancellation for diode limiter
  43. electret mic preamp for micro ADC
  44. Understanding "Voltage - Input Offset" Parameter
  45. Schade MOSFET + Feedback Line Amp
  46. Preamp or receiver?
  47. Sony BX-270 Datasheet Wanted
  48. Classe Audio DR6 Bias
  49. Dual gang potentiometer for 'mixer'
  50. Aikido Preamp Bass & Treble Controls
  51. Tried active crossover, mean hum...
  52. How to use TDA7439 for center and subwoofer
  53. Active notch filter
  54. simple pre amp volume control with seperate mono out
  55. Help me wire up my SUT correctly (Tamura TKS-27)
  56. How can I split a mixer bus?
  57. Beau's Bias Circuit Schematic
  58. What should be included in a subwoofer lowpass filter?
  59. Potentiometer volume control treble loss bleed
  60. Adcom GFP 815 Pre Amp-Any users?
  61. speaker out to preamp out while driving speaker
  62. 6dB Active crossover
  63. Replacing volume pot from 100K to 50K reduces gain?
  64. Dual Ganged Stereo Volume Control
  65. McIntosh/Conrad Johnson pairing
  66. Input Impedance Question
  67. Active studio monitors/ crossovers
  68. new discrete opamp for line preamplifier
  69. Music Angel Pre Amp
  70. Tilt Equalizer Filter
  71. Parametric EQ based bass boost circuit
  72. Power On Delay/Loss of AC Detector Relay
  73. Balanced Line Driver with DRV134
  74. PGA3211 6.1 assembling
  75. PGA2311 code
  76. SMD High-Voltage Discrete Diamond Buffer
  77. How best to implement image mode controls
  78. Preamp has unwanted delay (and hum)
  79. Pot values in LM1036 preamp circuit
  80. simple three steps attenuator
  81. Behringer Eurorack UB1622fx PRO schematic
  82. Need help with Coustic XM-5e Crossover
  83. Small Fader + Volume control for Car
  84. PGA2311 Evaluation
  85. Are these pots what I need for my preamp?
  86. IR Remote Control
  87. That Corporation 1200 , 1203 , 1206 circuits
  88. portable set field mixer/ mic pre
  89. Compact simple EQ
  90. Digitally controlled pot distortion?
  91. Help me Choose Between A and B
  92. Quad Eight Electronics EQ712
  93. Adding a line level output to PGA2311 preamp
  94. Using Joachim Gerhard Filter Buffers as balanced crossover
  95. Impedance measuring jig and iSEMcon kit
  96. LM1036N Potentiometer Type
  97. 4558d
  98. 10M45 as simple preamp...
  99. Kenwood c-2 balance pot
  100. Attenuator Impedance for Adcom GFA-535?
  101. McIntosh C712 Preamplifier - Schematic wanted
  102. Speaker Combination in Custom Installation, please help
  103. 5 band equalizer, need help!!
  104. Parasound P/HP-850 Preamp Problem
  105. Crossover between pre and power amp for sub
  106. miniDSP pre-amp & volume control idea
  107. Klark Teknik Upgrae for 2ch
  108. signal level
  109. THAT 1200 Balaced Receiver IC?
  110. Patch Bay With Buffered Splitter/Channel Inputs Ideas
  111. Can't seem to get OpAmps to work
  112. Yamaha Equalizer 1027 service manual wanted
  113. Yamaha RX-V480 Tuner / FM Bands Wacky
  114. Discrete MOSFET 12db High Pass Filter
  115. ESP Proyect97 PCB
  116. Christmas Project - Audio Analyser
  117. HELP : what wattage for resistor ?
  118. x'over for a sub?
  119. Overlay stereo with mono, without losing stereo?
  120. Hi Level Amp output connect to RCA input
  121. Uneven Hafler 110 output
  122. Preamp-Buffers - simple idea
  123. OPA1612 compared to OPA2228(and a lil question about caps)
  124. How to wire up Audio Matching Transformer?
  125. VU meter arduino project help
  126. 8ch ADC
  127. Passive mixing network -- calculating total loss?
  128. DIY 3 way active crossover: as Christmas Holiday Project
  129. Upgrading the SM Pro AUDIO DI 4V
  130. fully balanced line with THAT 1206 plus 1646
  131. GHOST in 3 band graphic equalizer!! SOS!
  132. Weak bass problem...
  133. Please help me to debug the Lighter Note Attenuator
  134. Yet another remote volume control
  135. Questions about AC coupling and opamp biasing
  136. Request for Guides/Explanation Regarding Audio Mixer Circuits
  137. Preamp mod with a low cut shelf filter
  138. Linn Kairn repair
  139. Filter Bass and treble to the input of a microprocessor
  140. unbalanced to balanced 4 ch kit
  141. I need a super bass tone control
  142. Active Crossover for Open Baffle 2-way
  143. Simplist and tiniest PGA2320 kit out there?
  144. Impedance matching and 30dB drop
  145. Are there many people using BNC out there? or RG6 Quad Shield?
  146. output level of dvd playre?
  147. Suggestions for dual PS
  148. Yet Another IR Remote Volume Controller? No, I want one WITHOUT uC
  149. best balanced volume control solution ?
  150. help with muting relay
  151. Need help: Input selector control for 6 channels
  152. Opamp rollers and fiddlers this is for you.
  153. Good quality active preamp
  154. Convert mini Pre-amp from AC to DC power
  155. Volume control, Evil Mad Scientist style
  156. McIntosh C28 With Bad Transformer
  157. analogue active filter: MFB or Sallen Key?
  158. Help with 6-Bit R-2R Relay Attenuator
  159. Current conveyor as a voltage amplifier
  160. DIY monitor controller modules order…
  161. Active crossover component suggestions?
  162. can a preamp be used directly for headphone?
  163. Sharing a Single Inductor for Multiple Passive LR Filters?
  164. Audio Research LS-3 power transformer
  165. Lil Pre Amp
  166. Preamp OP-AMP...help.
  167. looking to try to split 80hz from an active stereo 3 way
  168. PGA2311 LCD Volume Remote Control+GOLD RCA Jeff Rowland
  169. A new fully analog FM modulated wideband optical transport Open Standard.
  170. wiring schematic for DPDT on-on-on toggle selector
  171. Mods for Denon AVR receiver or pre-amp?
  172. Mods for Denon AVR receiver or pre-amp?
  173. A question of volume control
  174. Cable Questions
  175. Interconnect cable Recommendations
  176. Another simple project I can't do. Using DAC from CDP
  177. Can i make a balanced preamp only using OPA2134 ?
  178. When is the Aikido going to be on sale again? is there a group buy I can get in on?
  179. Swapping potentiometer
  180. What should I be searching for
  181. Signal booster for cd player
  182. Preamp output relay - or other device
  183. Matching my silonex LDR
  184. Ballanced Unballanced what does it mean??
  185. LP/HP crossover for 2.1 DIY preamp?
  186. Biamp EQ-210 as a "Studio" EQ?
  187. Current noise between DC coupled op amps?
  188. Soft Clipper Central Station?
  189. Request active sub xo schematic
  190. Multichannel splitter and gain structure control box
  191. compact stackable relay attenuator - something new
  192. DIY Crossover/Filter: Power Handling
  193. Getting to know the DOODs ...
  194. LED battery indicator
  195. LME49713
  196. Tube preamp kit from ebay - worth my time?
  197. small pre-amp control board design help, I will pay :-)
  198. Value of Stepped Attenuator for Passive Amp.
  199. Differential Line Driver - Impedance Questions
  200. opa 2889 buffer circuit
  201. Help needed with diy outpout switcher relay based
  202. How to make a volume control 50cm from pre-amp?
  203. MAT02 transistors on eBay, are they genuine?
  204. Newb interested in DIY preamp
  205. Help hooking up a car VU meter unit to a home AV reciever
  206. Modular Preamplifier with IC Class A (SAM Electronic Circuits)
  207. Discrete opamp vs regular op amps
  208. Bob Cordell's VinylTrak
  209. NE5532 Tone Control
  210. Muting arrangements for ESP kits: P05B and P09B
  211. Schematics for c3m based preamp
  212. TA 377A preamp
  213. preamp and active filter for class AB amp
  214. Getting a PGA2310 to be silent
  215. SPL EQ Magix studio mic preamp
  216. What's wrong with this typicial preamp circuit?
  217. How Many Line-Level Components?
  218. Need to make a simple balance control
  219. DRV134 and protection diodes
  220. Passive line level 3th order RC XO with no insertion losses?
  221. That 1646 balanced line driver PCB
  222. Help with a PLLXO
  223. LME49990 design note
  224. Cg in THAT 1512
  225. Transistor Preamp Design for ADC
  226. P1 preamplifier
  227. MUSES 72320 electronic volume
  228. DIY 1/2-inch Measurement Microphone
  229. Adcom GTP-450 - Right Channel Fades Out
  230. Passive pre for my AudioSector
  231. Capacitive crosstalk between input/output wiring
  232. Cantilevered-Cascode Buffer (CCB) aka LinuxBuffer
  233. Accelerometer to audiointerface
  234. Home Theater bypass for a tube pre amp - Help!!!
  235. Ultrabass, psychoacoutstic low bass for little speakers
  236. Discrete Opamp test circuits
  237. Inverted Polarity of tube Pre-Amps
  238. Looking For Someone To Build A Vandersteen X-2
  239. Configurable active crossover - Newbie jumping in feet first
  240. Mic Preamp Improvements? (Soundcraft 800B)
  241. electret mic preamp gain
  242. Question about active crossover
  243. Rod Elliott ESP opamp pre's question
  244. Design questions for opamp-based preamp
  245. Preamp with remote using radio not ir
  246. Squeaking Noise with 48V in DAV BG1
  247. I need mini Pre-amp board, please help
  248. IS THIS EARTH LOOP,LEAKING CAPS OR BROKEN LINK?
  249. looking to build a "classic" tube compressor
  250. lm833 single supply

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