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  1. Potmeter to balanced amp= Hum; Help!
  2. LEDs as references in current sources
  3. Looking for inkel pp 821 pre amp service manual
  4. Original Mezmerize thread?
  5. Active xover help.
  6. The Effects Of High Resistance Interconnects
  7. dual balanced ne5534 schematic
  8. JA Pre and MyRef - FE Integration
  9. RFI filter and DC blocking cap
  10. Dyanmic mic to electret type input
  11. Help with audio test equipment design
  12. Simple precision constant current LDR controller
  13. How to control 10 pots in active cross?
  14. HF to LF shelving filter
  15. Lawo W990VS/9 - Connection Question
  16. GlassWare Audio
  17. Source select and passive volume for microcontroller-based preamp?
  18. Microcontroller stepped LDR
  19. Newbie question - PCB mounting
  20. PGA2310 based preamp+ remote
  21. Summing Amp Transformers
  22. Krell KSL AC Conversion 110 -> 240
  23. Insert-send to balanced converter
  24. That 1512 fixed gain follow by a second stage
  25. "Tape Out" on DIY Passive Pre
  26. Help to make a pcb for portable stereo preamp ?
  27. Modifying Maplin preamp kit
  28. Help choosing opamp for this circuit
  29. Help! Microphone impedance matching?
  30. adding opamp filter stage
  31. parametric filter to shelving
  32. opamps - fakes?
  33. combine active xo and parametric eq
  34. Discussion of CCS control for LED/LDR volume adjustment
  35. Small Signal Transistor and Diode Models from NXP
  36. Output Transformer Waveform- Is it good or not?
  37. TL082 Preamp Instability
  38. HELP! line-level crossover design for solar-powered biamped soundsystem
  39. How to integrate Baffle Step Compensation into existing discrete linestage?
  40. Fundamental Oscilliscope Usage
  41. Balanced buffers - analogue volume control
  42. A second order active filter with single supply - Zin ?
  43. Tamradio 600:600 Transformers
  44. Input bias current and impedance of an op amp?
  45. Otari MX7000
  46. Vca's
  47. Optimum value for R(s) in a JFET follower?
  48. Active preamp gain
  49. complementary jfet input trimmer
  50. Looking for a PGA2320 PCB
  51. Looking for discrete high performance linestage design with 12v rails
  52. Which power transformer for low hum?
  53. 2SA1015 SRPP follower bridge mode
  54. H/K 595 subwoofer connect to Aiwa reciever.
  55. Aragon 47k Schematics?
  56. Best OP-amp for EQ circuit?
  57. Broskie
  58. Active Stereo Preamp , OPAMP VS TRANSISTORS , which on would you prefer ?
  59. XLR jacks
  60. Which Aikido?
  61. Electret Mic Power Circuit for PC Input
  62. Soundcraft B100 (TL072...again)
  63. XLR, RCA and CMRR - a few questions
  64. Help Designing Preamp Schematic
  65. Here's a weird enquiry
  66. C1583 & A798
  67. Volume Control with symmetrical out and in
  68. Building a Tee attenuator
  69. Noise in balanced outputs - Parasound
  70. Need some advice on a level booster...
  71. INA134-DRV134 balanced preamp
  72. how to add protection circuits (swith circuit)
  73. resistor(s) in ground paths to reduce hum, etc.
  74. My (quick and dirty) take at a PLLXO for OB, help is welcome
  75. Lundahl LL1530 - audio application?
  76. SP-6 Light with ECC801S
  77. Active crossover help
  78. Line Level Preamp, Using JFETs, in a can.
  79. Replacement push buttons for hafler?
  80. My fuzz pedal project is behaving badly
  81. My fuzz pedal project is behaving badly
  82. Op-amp Upgrade
  83. Output transformers for Line-level signal.
  84. PGA2310 control module
  85. Shields in internally balanced equipment
  86. First effort: MM/MC phono preamp with DC servo
  87. How to figure gyrator treble boost gain
  88. AirTight ATC-2 Preamp Pictures
  89. Need help with the NE5543N opamp
  90. help building a crossover/lowpass filter
  91. Poles and throws?
  92. DC buildup in Linkwitz Transform
  93. BOZ (bride of Zen) advices asked - things to do/avoid
  95. Adjustable Linkwitz-Riley filter: Help needed with SPICE
  96. Variable active high pass filter .
  97. What advantage to use OP to summing signal ?
  98. Transformer malfunction??'
  99. Fader Penny Giles and Active Level control
  100. Is this filtering really needed ?
  102. Balanced vs Unbalanced -Basics
  103. Humorous mistake in Douglas Self Active Crossovers book
  104. preamp and tone control circuit with pcb
  105. Noisy 'clickless' analogue switches
  106. Preamp needed, or am I missing something?
  107. Volume Control Clicks
  108. Audio Research SP-10 Clone HELP please
  109. Selector switch
  110. repairing/recycling RCA cable
  111. Klimo Merlin rebuilding
  112. Analog Signal to fire Contact Closure
  113. Cello Palette Style EQ Design (was High End Tone Control)...
  114. LDR attenuators - Better balance with DC bias
  115. Acoustic Guitar Pre/Comp/EQ/Blender/DI
  116. Where is the point of diminishing returns with caps in passive crossovers?
  117. Preamp output protection
  118. Lexicon Master Re-boot?
  119. Grounding in balanced passive pre?
  120. Preamp knob where to buy...
  121. Transcendent Sound GG help
  122. Signal level
  123. Advice on a simple preamp
  124. Balanced and Unbalanced signals in a Control Room Monitor
  125. Audio Delay Circuit
  126. Shielded Umbilical Question
  127. TEAC 80-8 head spec
  128. DC on Lightspeed-attenuator possible
  129. DC on Lightspeed-attenuator possible
  130. Light Dependant Resistor Current Control
  131. Broskie Unbalancer - manual query?
  132. Op-amp Guilt feel.
  133. simple active crossover
  134. Attenuation Versus Gain
  135. fake signal to bypassed inserts
  136. How to Mult (aka split) a line signal into 8 identical buffered outputs... properly!
  137. Mic preamp
  138. Silicon Chip Pre-amp not switching inputs
  139. Making a very simple volume control
  140. consumer --- > commercial
  141. Need advice isolating subwoofer channel from main L/R channels.
  142. What type of diode should i use in this circuit?
  143. Plz advise on balanced pot wiring
  144. Protecting my amp during circuit tests
  145. Pre amp output shorted?
  146. 4 channel mixer circuit?
  147. Wiring a Pot
  148. How to make a phase inverter?
  149. line level volume control
  150. Equalizer
  151. RL passive high pass line level filter
  152. Denon D-75 & diy plinth
  153. Many questions on mhennessy's Hi-Fi preamp (mainly about power-fail detect circuit)
  154. LF03 discrete opamp
  155. passive line level filter question
  156. DIC Integrated amplifier - seventies
  157. Sound Quality on Unity gain opamp
  158. PGA2310 Line Preamplifier + Free Software
  159. Remotely Controlled Motorized Volume Pot.
  160. Preamp Kit - New DIY'er
  161. Pre-Amp Mods - Suggestions
  162. why not use quarter inch stereo jacks for connecting hifi
  163. BSG Technologies QOL "Signal Completion Stage"
  164. What is the best use of 12AT7?
  165. Popping noise on input selector switch
  166. 3 TRS in, 3 TRS out, 1 knob volume.
  167. Fostex Volume Control "PC1EX" - Schematic wanted
  168. Schematic Focusrite Octopre??
  169. multichannel volume control
  170. JC-80 eBay PCBs & Power Train
  171. Parametric EQ values?
  172. Recommend a first diy phono pre-amp?
  173. Phono problems one side working
  174. TL071 question
  175. Forte F44 preamp, DC Voltage leak
  176. To build a high pass RL line level filter
  177. If You Don't Have a SIT, Fake It...
  178. 3 core audio cable
  179. Another Remote Alps
  180. matching sine wave wave file / expert opinion
  181. Can a delay circuit be beneficial between bass and mids?
  182. Exponential programmable resistor
  183. Balanced interconnect with 2 x 75 ohm coax cables?
  184. Volume Control Kit/Controller to work with WMCE-remotes
  185. cs3318 and arduino
  186. Anyone knows if Khozmo guy is still around
  187. What kind of connector is this and how can it be fixed?
  188. "8 ohm 3 way x-over" mod for 4ohm woofer ?
  189. 6SN7 Tube pre
  190. 2 channel to 7.1
  191. Pass Aleph L1.2
  192. Chinese mini VU Meters
  193. Three opamp 24db/oct crossover?
  194. Parametric EQ for subwoofer?
  195. Kit or Behringer ?
  196. Redesigning a cheap obsolete 8-track pre-amp.
  197. Help with circuit for preamp with eq and balanced output powered by phantom power
  198. Inexspensive volume control chips
  199. Linkwitz ASP Custom Build
  200. Shielded cable or faraday cage or both?
  201. Upgraded opamp in preamp and now there is a hum/buzz
  202. GFP-555
  203. mic tube preamp as line stage
  204. AV / HT Preamp
  205. audio matrix
  206. mic pre application buffer op-amp question
  207. Does this preamp look any good?
  208. Replacement for LM833 in active crossover
  209. Not another project yet
  210. RJM Audio B-Board Project
  211. Cause of weak Preamp channel
  212. Schematic Boston PV700
  213. discrete op amp
  214. Resistor between line out and GND: what for?
  215. Recap Rotel RC1070
  216. Speaker selector / level equalizer?
  217. Voltage Readings Following Soldering Error
  218. Selector switch - replacement - shielded wire?
  219. Frequency Response of WW Pots?
  220. Passive pre, adding buffers
  221. AI Modulus preamp...heat damage?
  222. auto level control for input
  223. Which opamp in this preamp circuit?
  224. Audio Pre Amplifier
  225. Mic Preamp output protection
  226. Krell KAV-250cd Output stage drawn
  227. Stereo to Mono Circuit: need help with capacitor
  228. AD797 Preamp based on stolen trademark
  229. Solderless RCA plugs for DIY interconnects
  230. options for source selector/volume control <100/$150
  231. Pre Amp with pre-out for Arjen Helder Ta2020
  232. Cables: different YES - better ???
  233. Arcam AV9 processor
  234. Looking for unbalanced to balanced transformer
  235. Frequency cut out switches. Graphic EQ.
  236. Stepped attenuator ?
  237. active tri line splitter using BJT transistor
  238. Neotech UPOCC Silver vs HGA Silver
  239. All In One Mixer/PC Project
  240. Sweep Eq
  241. Methods of Handling Various Devices and Grounding - Ground Loop Issues
  242. In-depth analysis of effect of high-quality interconnects
  243. Universal FET buffer / preamplifier
  244. Simple Pre-Amp with Variable High-Pass - This right?
  245. How to derermine the optimum bias resistor value ?
  246. output inductor?
  247. RGB LEDs amp audio level
  248. installing an analog audio output jack on a television?
  249. Help needed for Krell krs-1a preamp
  250. power conditioner project anyone ??

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