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  1. GlassWare Audio
  2. Source select and passive volume for microcontroller-based preamp?
  3. Microcontroller stepped LDR
  4. Newbie question - PCB mounting
  5. PGA2310 based preamp+ remote
  6. Summing Amp Transformers
  7. Krell KSL AC Conversion 110 -> 240
  8. Insert-send to balanced converter
  9. That 1512 fixed gain follow by a second stage
  10. "Tape Out" on DIY Passive Pre
  11. Help to make a pcb for portable stereo preamp ?
  12. Modifying Maplin preamp kit
  13. Help choosing opamp for this circuit
  14. Help! Microphone impedance matching?
  15. adding opamp filter stage
  16. parametric filter to shelving
  17. opamps - fakes?
  18. combine active xo and parametric eq
  19. Discussion of CCS control for LED/LDR volume adjustment
  20. Small Signal Transistor and Diode Models from NXP
  21. Output Transformer Waveform- Is it good or not?
  22. TL082 Preamp Instability
  23. HELP! line-level crossover design for solar-powered biamped soundsystem
  24. How to integrate Baffle Step Compensation into existing discrete linestage?
  25. Fundamental Oscilliscope Usage
  26. Balanced buffers - analogue volume control
  27. A second order active filter with single supply - Zin ?
  28. Tamradio 600:600 Transformers
  29. Input bias current and impedance of an op amp?
  30. Otari MX7000
  31. Vca's
  32. Optimum value for R(s) in a JFET follower?
  33. Active preamp gain
  34. complementary jfet input trimmer
  35. Looking for a PGA2320 PCB
  36. Looking for discrete high performance linestage design with 12v rails
  37. Which power transformer for low hum?
  38. 2SA1015 SRPP follower bridge mode
  39. H/K 595 subwoofer connect to Aiwa reciever.
  40. Aragon 47k Schematics?
  41. Best OP-amp for EQ circuit?
  42. Broskie
  43. Active Stereo Preamp , OPAMP VS TRANSISTORS , which on would you prefer ?
  44. XLR jacks
  45. Which Aikido?
  46. Electret Mic Power Circuit for PC Input
  47. Soundcraft B100 (TL072...again)
  48. XLR, RCA and CMRR - a few questions
  49. Help Designing Preamp Schematic
  50. Here's a weird enquiry
  51. C1583 & A798
  52. Volume Control with symmetrical out and in
  53. Building a Tee attenuator
  54. Noise in balanced outputs - Parasound
  55. Need some advice on a level booster...
  56. INA134-DRV134 balanced preamp
  57. how to add protection circuits (swith circuit)
  58. resistor(s) in ground paths to reduce hum, etc.
  59. My (quick and dirty) take at a PLLXO for OB, help is welcome
  60. Lundahl LL1530 - audio application?
  61. SP-6 Light with ECC801S
  62. Active crossover help
  63. Line Level Preamp, Using JFETs, in a can.
  64. Replacement push buttons for hafler?
  65. My fuzz pedal project is behaving badly
  66. My fuzz pedal project is behaving badly
  67. Op-amp Upgrade
  68. Output transformers for Line-level signal.
  69. PGA2310 control module
  70. Shields in internally balanced equipment
  71. First effort: MM/MC phono preamp with DC servo
  72. How to figure gyrator treble boost gain
  73. AirTight ATC-2 Preamp Pictures
  74. Need help with the NE5543N opamp
  75. help building a crossover/lowpass filter
  76. Poles and throws?
  77. DC buildup in Linkwitz Transform
  78. BOZ (bride of Zen) advices asked - things to do/avoid
  79. DIY STEREO MIC-PREAMP for DSLR-Video
  80. Adjustable Linkwitz-Riley filter: Help needed with SPICE
  81. Variable active high pass filter .
  82. What advantage to use OP to summing signal ?
  83. Transformer malfunction??'
  84. Fader Penny Giles and Active Level control
  85. Is this filtering really needed ?
  86. Need help with ebay PHONO TURNTABLE PREAMP PREAMPLIFIER PCB DIY KIT
  87. Balanced vs Unbalanced -Basics
  88. Humorous mistake in Douglas Self Active Crossovers book
  89. preamp and tone control circuit with pcb
  90. Noisy 'clickless' analogue switches
  91. Preamp needed, or am I missing something?
  92. Volume Control Clicks
  93. Audio Research SP-10 Clone HELP please
  94. Selector switch
  95. repairing/recycling RCA cable
  96. Klimo Merlin rebuilding
  97. Analog Signal to fire Contact Closure
  98. Cello Palette Style EQ Design (was High End Tone Control)...
  99. LDR attenuators - Better balance with DC bias
  100. Acoustic Guitar Pre/Comp/EQ/Blender/DI
  101. Where is the point of diminishing returns with caps in passive crossovers?
  102. Preamp output protection
  103. Lexicon Master Re-boot?
  104. Grounding in balanced passive pre?
  105. Preamp knob where to buy...
  106. Transcendent Sound GG help
  107. Signal level
  108. Advice on a simple preamp
  109. Balanced and Unbalanced signals in a Control Room Monitor
  110. Audio Delay Circuit
  111. Shielded Umbilical Question
  112. TEAC 80-8 head spec
  113. DC on Lightspeed-attenuator possible
  114. DC on Lightspeed-attenuator possible
  115. Light Dependant Resistor Current Control
  116. Broskie Unbalancer - manual query?
  117. Op-amp Guilt feel.
  118. simple active crossover
  119. Attenuation Versus Gain
  120. fake signal to bypassed inserts
  121. How to Mult (aka split) a line signal into 8 identical buffered outputs... properly!
  122. Mic preamp
  123. Silicon Chip Pre-amp not switching inputs
  124. Making a very simple volume control
  125. consumer --- > commercial
  126. Need advice isolating subwoofer channel from main L/R channels.
  127. What type of diode should i use in this circuit?
  128. Plz advise on balanced pot wiring
  129. Protecting my amp during circuit tests
  130. Pre amp output shorted?
  131. 4 channel mixer circuit?
  132. Wiring a Pot
  133. How to make a phase inverter?
  134. line level volume control
  135. Equalizer
  136. RL passive high pass line level filter
  137. Denon D-75 & diy plinth
  138. Many questions on mhennessy's Hi-Fi preamp (mainly about power-fail detect circuit)
  139. LF03 discrete opamp
  140. passive line level filter question
  141. DIC Integrated amplifier - seventies
  142. Sound Quality on Unity gain opamp
  143. PGA2310 Line Preamplifier + Free Software
  144. Remotely Controlled Motorized Volume Pot.
  145. Preamp Kit - New DIY'er
  146. Pre-Amp Mods - Suggestions
  147. why not use quarter inch stereo jacks for connecting hifi
  148. BSG Technologies QOL "Signal Completion Stage"
  149. What is the best use of 12AT7?
  150. Popping noise on input selector switch
  151. 3 TRS in, 3 TRS out, 1 knob volume.
  152. Fostex Volume Control "PC1EX" - Schematic wanted
  153. Schematic Focusrite Octopre??
  154. multichannel volume control
  155. JC-80 eBay PCBs & Power Train
  156. Parametric EQ values?
  157. Recommend a first diy phono pre-amp?
  158. Phono problems one side working
  159. TL071 question
  160. Forte F44 preamp, DC Voltage leak
  161. To build a high pass RL line level filter
  162. If You Don't Have a SIT, Fake It...
  163. 3 core audio cable
  164. Another Remote Alps
  165. matching sine wave wave file / expert opinion
  166. Can a delay circuit be beneficial between bass and mids?
  167. Exponential programmable resistor
  168. Balanced interconnect with 2 x 75 ohm coax cables?
  169. Volume Control Kit/Controller to work with WMCE-remotes
  170. cs3318 and arduino
  171. Anyone knows if Khozmo guy is still around
  172. What kind of connector is this and how can it be fixed?
  173. "8 ohm 3 way x-over" mod for 4ohm woofer ?
  174. 6SN7 Tube pre
  175. 2 channel to 7.1
  176. Pass Aleph L1.2
  177. Chinese mini VU Meters
  178. Three opamp 24db/oct crossover?
  179. Parametric EQ for subwoofer?
  180. Kit or Behringer ?
  181. Redesigning a cheap obsolete 8-track pre-amp.
  182. Help with circuit for preamp with eq and balanced output powered by phantom power
  183. Inexspensive volume control chips
  184. Linkwitz ASP Custom Build
  185. Shielded cable or faraday cage or both?
  186. Upgraded opamp in preamp and now there is a hum/buzz
  187. GFP-555
  188. mic tube preamp as line stage
  189. AV / HT Preamp
  190. audio matrix
  191. mic pre application buffer op-amp question
  192. Does this preamp look any good?
  193. Replacement for LM833 in active crossover
  194. Not another project yet
  195. RJM Audio B-Board Project
  196. Cause of weak Preamp channel
  197. Schematic Boston PV700
  198. discrete op amp
  199. Resistor between line out and GND: what for?
  200. Recap Rotel RC1070
  201. Speaker selector / level equalizer?
  202. Voltage Readings Following Soldering Error
  203. Selector switch - replacement - shielded wire?
  204. Frequency Response of WW Pots?
  205. Passive pre, adding buffers
  206. AI Modulus preamp...heat damage?
  207. auto level control for input
  208. Which opamp in this preamp circuit?
  209. Audio Pre Amplifier
  210. Mic Preamp output protection
  211. Krell KAV-250cd Output stage drawn
  212. Stereo to Mono Circuit: need help with capacitor
  213. AD797 Preamp based on stolen trademark
  214. Solderless RCA plugs for DIY interconnects
  215. options for source selector/volume control <100/$150
  216. Pre Amp with pre-out for Arjen Helder Ta2020
  217. Cables: different YES - better ???
  218. Arcam AV9 processor
  219. Looking for unbalanced to balanced transformer
  220. Frequency cut out switches. Graphic EQ.
  221. Stepped attenuator ?
  222. active tri line splitter using BJT transistor
  223. Neotech UPOCC Silver vs HGA Silver
  224. All In One Mixer/PC Project
  225. Sweep Eq
  226. Methods of Handling Various Devices and Grounding - Ground Loop Issues
  227. In-depth analysis of effect of high-quality interconnects
  228. Universal FET buffer / preamplifier
  229. Simple Pre-Amp with Variable High-Pass - This right?
  230. How to derermine the optimum bias resistor value ?
  231. output inductor?
  232. RGB LEDs amp audio level
  233. installing an analog audio output jack on a television?
  234. Help needed for Krell krs-1a preamp
  235. power conditioner project anyone ??
  236. DQ-LP1 Help
  237. upgrading active xover with LM4562
  238. 48VDC Phantom Power switch - seeking advice
  239. Rotel RTC-970 - Remote Controller RR970
  240. bi-amp'd, with passive mid/high ??
  241. Interesting Interconnect Cables
  242. Hum in RC cable
  243. Help for upgrading Pioneer receiver
  244. My attempt at a Monitor Volume Control with headphone outs
  245. Pumpkin Problems
  246. Rod Elliot - Audio Mixing Console (HELP!!)
  247. looking for a 3 way active crossover for diy powered speaker
  248. RFI woes
  249. need info on preamps for use on baf1
  250. Mixer Channel for observation

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