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  1. 20hz high pass on Ashly XR2000 - removable?
  2. Transformer Based Balanced Output & Impedance
  3. Poll for the participants of "John Curl's Blowtorch preamplifier part II"
  4. John Bowers Active Control Unit preamp: Info sought
  5. Looking for pointers on first DIY preamp please.
  6. Simple analog vu-meter driver ?
  7. Please pardon the noob question. need guidance
  8. Build a high pass filter for amplifier
  9. Critique on success of this subwoofer cutoff project?
  10. Need gain AMOUNT for mobile phone/pc sources
  11. re-replacing 2sk213/j76 transistors help
  12. Preventing crossover between mixers
  13. RCA LMI- 32215 A - for recording studio.
  14. Rane pot help please...
  15. Simple low voltage tube preamp stage
  16. HELP me design a discrete current sinking positive V regulator
  17. True Biamping and Active crossovers info request
  18. Question about hypex balanced vs unbalanced
  19. Soundcraftsmen
  20. very small noob question project 88
  21. Help with cable conundrum!
  22. P7 Pre amp Trouble
  23. Party-line / Full-duplex intercom - mixing audio signals
  24. ZSP1 preamp gain
  25. Acurus L10 Powersupply
  26. Building an Analog to Digital Converter Unit...
  27. DIY pre amp board
  28. Opamp power bypass
  29. Tone Control - Volatage range for TL072/LF252-N
  30. Stereo volume attenuation
  31. Quad channel volume control
  32. Work? L, R RCA inputs -> 1 XLR out?
  33. Impedance matching pre -> power.
  34. LME49740 vs TL074, design considerations and stability
  35. Solid state R2R attenuator using analog switches or multiplying DAC
  36. MF nuvista source selector problem again
  37. What do we think about solid-state potentiometers?
  38. TubeCAD's ACF2 as a active crossover
  39. Phaseca--My new diy pre amp
  40. looking for bass treble pcb pattern
  41. Mobile recording using linein
  42. [Need] simple preamp and LPF based on 5532 for digital sources
  43. wall-based trasformer volume control as passive pre?
  44. noob stab in the dark - riaa preamp
  45. Oscillating Op-Amp
  46. Preamp for shotgun mic
  47. Mark Levinson No 38, Need Help
  48. Help! Kenwood Basic C-2 left channel out (phono only)
  49. Signal delay schematic
  50. Adding 4 channels to a 2 channel input on HT amp
  51. vumeter (stereo, mono)
  52. Acquired Some Elan Components, What are They?
  53. Pre-mix for boombox
  54. Reed Switch Audio Attenuator
  55. "Balanced" PGA2311?
  56. 2 way crossover on Chinese pcbs
  57. SE to Balanced pre question
  58. Interconnect Ground Cable Ground Loops
  59. PGA2310 - PGA2311 - CS3310: version without OPAMP for outdoor OPAmp connection wanted
  60. Any AIKIDO-philes who know why Broskie has changed the formula
  61. One More Overcomplicated Mic Preamp
  62. Problems with subwoofer phase control picking up noise
  63. IC's get hammered
  64. Left/Right channel balance control
  65. Potentiometer Selection
  66. All-In-One Preamp Circuit
  67. Line level mixing
  68. Booze Hounds Labs Phono any good?
  69. PLLXO - Am I doing this right?
  70. Need an Active 2nd Order Low Shelf Filter aka Low Shelving Filter
  71. Switching Noise Between Preamps
  72. Bluetooth Lightspeed attenuator
  73. Help getting 5.1 preamp from Ebay repaired please!
  74. Should using balanced cables to amplified monitors improve sound ?
  75. Apox Audio preamp reborn with the power of Arduino
  76. Does an Op Amp Voltage Follower Operate in Class A?
  77. My boozehound phono stage build
  78. Pre amp kit
  79. balanced preamplifier based on LME49990
  80. Merging two channels with passive low passes
  81. Old Colony Sound Lab T-2D Line Amp - Any Info?
  82. Impedance Bridging and Isolation Tranformer
  83. TDA7315 chip parameters interpretation
  84. MFP-102 N fet compatibility
  85. What is the effect of a 22K res in series with a 25K volume pot?
  86. Senior Project: Bandpass Equalizer pedal
  87. [WANTED] Mark Levinson No 26S Service Manual/Schematic
  88. ORTF is best for stereo recording
  89. A zero impedance preamp and CMRR
  90. good preamp
  91. calculate crossover with Re or impedance ?
  92. Op-Amp Preamp Circuit for Electret Mic
  93. Simple Router (then bass management)
  94. Second order shelving filter
  95. Help with component selection.
  96. passive to tame 8khz peak
  97. Hafler SE100 Preamplifier / Symmetric B1 buffer hybrid
  98. Adcom GFP-750 -Needs Repair
  99. Variable gain op-amp for volume control (vs normal voltage divider pot)
  100. Germanium Transistor and FET opamp
  101. 5 zone preamp based on Arduino controlled optocoupler
  102. How to select the right impedance for volume control
  103. In vehicle Pre-amp for mic (12+ VDC)
  104. Resistor-Diode-Relay Logic Source Selector
  105. 3 into 1 input the other way round
  106. Nagging Ground Issue
  107. Looking for Princeton Applied Research 115 MANUAL
  108. Active Band Pass Filter with +/- Gain
  109. Components source
  110. Guitar ABY or Headphone Amplifier?
  111. rod elliot p88 preamp knob arrangment
  112. C-Mos opamps in audio preamplifiers
  113. Cheap, balanced XLR passive pre?
  114. DIY crossover - Sallen-Key?
  115. Hafler 915 preamp cap question
  116. analog 3.5mm to digital usb possible?
  117. Mixer Pre-amp
  118. DIY tube preamp - help with choosing the right kit
  119. opamp channels mysteriously mixing ¿quantum thing or me too dumb?
  120. MC-22 schematic question
  121. unbalanced/balanced to balanced converter
  122. My line buffer preamp
  123. Attenuating Preamp Filter Question
  124. biamping with one DAC
  125. Audiophile active crossover
  126. adding EQ without screwing up sound; few questions...
  127. SSTART Pcb and power supply project
  128. Help with a simple envelop detector filter. (averaging the signal)
  129. audio output switch? Monitor Controller
  130. Very simple volume control with IR remote
  131. JFETs and MOSFETs biasing questions
  132. I need advise on audio mixing boards?
  133. pre amp output
  134. OPA134 Amp Help
  135. OPA134
  136. Capacitors voltage rating
  137. Capacitors voltage rating
  138. attenuation on dac output with U-pad
  139. passive preamp
  140. preamp necessary?
  141. Will phono pre > passive pre > amp work well enough?
  142. 60Hz hum problem, please help
  143. distortion cancellation for diode limiter
  144. electret mic preamp for micro ADC
  145. Understanding "Voltage - Input Offset" Parameter
  146. Schade MOSFET + Feedback Line Amp
  147. Preamp or receiver?
  148. Sony BX-270 Datasheet Wanted
  149. Classe Audio DR6 Bias
  150. Dual gang potentiometer for 'mixer'
  151. Aikido Preamp Bass & Treble Controls
  152. Tried active crossover, mean hum...
  153. How to use TDA7439 for center and subwoofer
  154. Active notch filter
  155. simple pre amp volume control with seperate mono out
  156. Help me wire up my SUT correctly (Tamura TKS-27)
  157. How can I split a mixer bus?
  158. Beau's Bias Circuit Schematic
  159. What should be included in a subwoofer lowpass filter?
  160. Potentiometer volume control treble loss bleed
  161. Adcom GFP 815 Pre Amp-Any users?
  162. speaker out to preamp out while driving speaker
  163. 6dB Active crossover
  164. Replacing volume pot from 100K to 50K reduces gain?
  165. Dual Ganged Stereo Volume Control
  166. McIntosh/Conrad Johnson pairing
  167. Input Impedance Question
  168. Active studio monitors/ crossovers
  169. new discrete opamp for line preamplifier
  170. Music Angel Pre Amp
  171. Tilt Equalizer Filter
  172. Parametric EQ based bass boost circuit
  173. Power On Delay/Loss of AC Detector Relay
  174. Balanced Line Driver with DRV134
  175. PGA3211 6.1 assembling
  176. PGA2311 code
  177. SMD High-Voltage Discrete Diamond Buffer
  178. How best to implement image mode controls
  179. Preamp has unwanted delay (and hum)
  180. Pot values in LM1036 preamp circuit
  181. simple three steps attenuator
  182. Behringer Eurorack UB1622fx PRO schematic
  183. Need help with Coustic XM-5e Crossover
  184. Small Fader + Volume control for Car
  185. PGA2311 Evaluation
  186. Are these pots what I need for my preamp?
  187. IR Remote Control
  188. That Corporation 1200 , 1203 , 1206 circuits
  189. portable set field mixer/ mic pre
  190. Compact simple EQ
  191. Digitally controlled pot distortion?
  192. Help me Choose Between A and B
  193. Quad Eight Electronics EQ712
  194. Adding a line level output to PGA2311 preamp
  195. Using Joachim Gerhard Filter Buffers as balanced crossover
  196. Impedance measuring jig and iSEMcon kit
  197. LM1036N Potentiometer Type
  198. 4558d
  199. 10M45 as simple preamp...
  200. Kenwood c-2 balance pot
  201. Attenuator Impedance for Adcom GFA-535?
  202. McIntosh C712 Preamplifier - Schematic wanted
  203. Speaker Combination in Custom Installation, please help
  204. 5 band equalizer, need help!!
  205. Parasound P/HP-850 Preamp Problem
  206. Crossover between pre and power amp for sub
  207. miniDSP pre-amp & volume control idea
  208. Klark Teknik Upgrae for 2ch
  209. signal level
  210. THAT 1200 Balaced Receiver IC?
  211. Patch Bay With Buffered Splitter/Channel Inputs Ideas
  212. Can't seem to get OpAmps to work
  213. Yamaha Equalizer 1027 service manual wanted
  214. Yamaha RX-V480 Tuner / FM Bands Wacky
  215. Discrete MOSFET 12db High Pass Filter
  216. ESP Proyect97 PCB
  217. Christmas Project - Audio Analyser
  218. HELP : what wattage for resistor ?
  219. x'over for a sub?
  220. Overlay stereo with mono, without losing stereo?
  221. Hi Level Amp output connect to RCA input
  222. Uneven Hafler 110 output
  223. Preamp-Buffers - simple idea
  224. OPA1612 compared to OPA2228(and a lil question about caps)
  225. How to wire up Audio Matching Transformer?
  226. VU meter arduino project help
  227. 8ch ADC
  228. Passive mixing network -- calculating total loss?
  229. DIY 3 way active crossover: as Christmas Holiday Project
  230. Upgrading the SM Pro AUDIO DI 4V
  231. fully balanced line with THAT 1206 plus 1646
  232. GHOST in 3 band graphic equalizer!! SOS!
  233. Weak bass problem...
  234. Please help me to debug the Lighter Note Attenuator
  235. Yet another remote volume control
  236. Questions about AC coupling and opamp biasing
  237. Request for Guides/Explanation Regarding Audio Mixer Circuits
  238. Preamp mod with a low cut shelf filter
  239. Linn Kairn repair
  240. Filter Bass and treble to the input of a microprocessor
  241. unbalanced to balanced 4 ch kit
  242. I need a super bass tone control
  243. Active Crossover for Open Baffle 2-way
  244. Simplist and tiniest PGA2320 kit out there?
  245. Impedance matching and 30dB drop
  246. Are there many people using BNC out there? or RG6 Quad Shield?
  247. output level of dvd playre?
  248. Suggestions for dual PS
  249. Yet Another IR Remote Volume Controller? No, I want one WITHOUT uC
  250. best balanced volume control solution ?

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