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  1. Upgrading the SM Pro AUDIO DI 4V
  2. fully balanced line with THAT 1206 plus 1646
  3. GHOST in 3 band graphic equalizer!! SOS!
  4. Weak bass problem...
  5. Please help me to debug the Lighter Note Attenuator
  6. Yet another remote volume control
  7. Questions about AC coupling and opamp biasing
  8. Request for Guides/Explanation Regarding Audio Mixer Circuits
  9. Preamp mod with a low cut shelf filter
  10. Linn Kairn repair
  11. Filter Bass and treble to the input of a microprocessor
  12. unbalanced to balanced 4 ch kit
  13. I need a super bass tone control
  14. Active Crossover for Open Baffle 2-way
  15. Simplist and tiniest PGA2320 kit out there?
  16. Impedance matching and 30dB drop
  17. Are there many people using BNC out there? or RG6 Quad Shield?
  18. output level of dvd playre?
  19. Suggestions for dual PS
  20. Yet Another IR Remote Volume Controller? No, I want one WITHOUT uC
  21. best balanced volume control solution ?
  22. help with muting relay
  23. Need help: Input selector control for 6 channels
  24. Opamp rollers and fiddlers this is for you.
  25. Good quality active preamp
  26. Convert mini Pre-amp from AC to DC power
  27. Volume control, Evil Mad Scientist style
  28. McIntosh C28 With Bad Transformer
  29. analogue active filter: MFB or Sallen Key?
  30. Help with 6-Bit R-2R Relay Attenuator
  31. Current conveyor as a voltage amplifier
  32. DIY monitor controller modules order…
  33. Active crossover component suggestions?
  34. can a preamp be used directly for headphone?
  35. Sharing a Single Inductor for Multiple Passive LR Filters?
  36. Audio Research LS-3 power transformer
  37. Lil Pre Amp
  38. Preamp OP-AMP...help.
  39. looking to try to split 80hz from an active stereo 3 way
  40. PGA2311 LCD Volume Remote Control+GOLD RCA Jeff Rowland
  41. A new fully analog FM modulated wideband optical transport Open Standard.
  42. wiring schematic for DPDT on-on-on toggle selector
  43. Mods for Denon AVR receiver or pre-amp?
  44. Mods for Denon AVR receiver or pre-amp?
  45. A question of volume control
  46. Cable Questions
  47. Interconnect cable Recommendations
  48. Another simple project I can't do. Using DAC from CDP
  49. Can i make a balanced preamp only using OPA2134 ?
  50. When is the Aikido going to be on sale again? is there a group buy I can get in on?
  51. Swapping potentiometer
  52. What should I be searching for
  53. Signal booster for cd player
  54. Preamp output relay - or other device
  55. Matching my silonex LDR
  56. Ballanced Unballanced what does it mean??
  57. LP/HP crossover for 2.1 DIY preamp?
  58. Biamp EQ-210 as a "Studio" EQ?
  59. Current noise between DC coupled op amps?
  60. Soft Clipper Central Station?
  61. Request active sub xo schematic
  62. Multichannel splitter and gain structure control box
  63. compact stackable relay attenuator - something new
  64. DIY Crossover/Filter: Power Handling
  65. Getting to know the DOODs ...
  66. LED battery indicator
  67. LME49713
  68. Tube preamp kit from ebay - worth my time?
  69. small pre-amp control board design help, I will pay :-)
  70. Value of Stepped Attenuator for Passive Amp.
  71. Differential Line Driver - Impedance Questions
  72. opa 2889 buffer circuit
  73. Help needed with diy outpout switcher relay based
  74. How to make a volume control 50cm from pre-amp?
  75. MAT02 transistors on eBay, are they genuine?
  76. Newb interested in DIY preamp
  77. Help hooking up a car VU meter unit to a home AV reciever
  78. Modular Preamplifier with IC Class A (SAM Electronic Circuits)
  79. Discrete opamp vs regular op amps
  80. Bob Cordell's VinylTrak
  81. NE5532 Tone Control
  82. Muting arrangements for ESP kits: P05B and P09B
  83. Schematics for c3m based preamp
  84. TA 377A preamp
  85. preamp and active filter for class AB amp
  86. Getting a PGA2310 to be silent
  87. SPL EQ Magix studio mic preamp
  88. What's wrong with this typicial preamp circuit?
  89. How Many Line-Level Components?
  90. Need to make a simple balance control
  91. DRV134 and protection diodes
  92. Passive line level 3th order RC XO with no insertion losses?
  93. That 1646 balanced line driver PCB
  94. Help with a PLLXO
  95. LME49990 design note
  96. Cg in THAT 1512
  97. Transistor Preamp Design for ADC
  98. P1 preamplifier
  99. MUSES 72320 electronic volume
  100. DIY 1/2-inch Measurement Microphone
  101. Adcom GTP-450 - Right Channel Fades Out
  102. Passive pre for my AudioSector
  103. Capacitive crosstalk between input/output wiring
  104. Cantilevered-Cascode Buffer (CCB) aka LinuxBuffer
  105. Accelerometer to audiointerface
  106. Home Theater bypass for a tube pre amp - Help!!!
  107. Ultrabass, psychoacoutstic low bass for little speakers
  108. Discrete Opamp test circuits
  109. Inverted Polarity of tube Pre-Amps
  110. Looking For Someone To Build A Vandersteen X-2
  111. Configurable active crossover - Newbie jumping in feet first
  112. Mic Preamp Improvements? (Soundcraft 800B)
  113. electret mic preamp gain
  114. Question about active crossover
  115. Rod Elliott ESP opamp pre's question
  116. Design questions for opamp-based preamp
  117. Preamp with remote using radio not ir
  118. Squeaking Noise with 48V in DAV BG1
  119. I need mini Pre-amp board, please help
  120. IS THIS EARTH LOOP,LEAKING CAPS OR BROKEN LINK?
  121. looking to build a "classic" tube compressor
  122. lm833 single supply
  123. How to protect device from contamination through output
  124. Lundahl LL1545A hookup question...
  125. Inverting rail to rail unity buffer
  126. Subwoofer Controller Kit - Altronics Kit No K5562
  127. Replacement cap for Wima MKP10 0,047UF
  128. Programming of Oxmoor equalizers via PA-422
  129. Help in choosing a potentiometer as a "Passive preamplifier"
  130. Test IC TL074 CN
  131. Relay audio switcher
  132. Analog audio switcher
  133. BSS FDS 340 crossover
  134. Discrete Logic ABX Switch Box
  135. Audio System Controller
  136. the definitive opamp decouplig question
  137. buffer stages performance
  138. Rolling the RANE AC23
  139. Automatic Line level Attenuation Circuit
  140. Check my Opamp Preamp Please
  141. Choosing an active 3-way crossover
  142. Please suggest to me the best affordable LDR preamp kits
  143. Custom Rotary DJ mixer.
  144. Programmer-help for fleabay-remote-kit
  145. Wiring advice for internal pre amp inputs
  146. Discrete Opamp Open Design
  147. microprocessor And control
  148. Latest project.
  149. Remote control won't shut up
  150. Looking to DIY a DI box -10dBv to +4dBu
  151. pre amp suggestions, DIY or Non DIY, Im easy
  152. Musical Fidelity Pre Amp II
  153. Help with DIY passive balanced line level attenuator pads.
  154. RF-blocking???
  155. Jfet Line preamp, to cascode or not.
  156. Mic pre strange high-freq boost (what is broken here?)
  157. New pre amp coming. Change over to 115V help...
  158. XO of Mission 770mk2
  159. Equaliser design for a total n00b
  160. Trying to remote control volume on vintage HK
  161. Passive Pre Chassis and Budget Allocation
  162. Linkwitz Transforms
  163. INA217 is noisy
  164. need sound attenuator
  165. NAIM NAC 42.5 Vintage for my updated NYTECH CPA 602 - 2012
  166. Volume Control Problem
  167. Balanced Signal over 500 Metres!
  168. Single voltage powered Tone Control
  169. PGA2320 and Atmega8 Bascom Source Code Problem
  170. Tone Control Filter
  171. phase linear filters - any good?
  172. Summing (2x) opposite-phase signals with Transformers
  173. A circuit to monitor the analog audio line level
  174. diy Pre-amp question
  175. Critique please: Analogue -> Digital (TOS-LINK)
  176. Circuit Diagram wanted
  177. Xkitz 2-way Active Crossover Kit
  178. Need orientation with tweaking a TASCAM MF-P01
  179. Connecting Multiple op amp inputs from a single op amp output
  180. digital output
  181. Balanced Buffer Needed with a Balanced Volume Control?
  182. $150-200$ Preamp Build?
  183. Balanced tube preamplifier: suggestions?
  184. Adding summed output for sub
  185. Please help me understand this circuit...newbie here
  186. lpf and hpf setting.
  187. After search...need schematic to stereo preamp with only 4 bjt transistors
  188. Help with Zero Field input circuit
  189. The XCEN -- Balanced to Single Ended Converter
  190. Building active cross-overs into multiple power amps?
  191. "Firefly" Unity Gain Buffer
  192. Parasound P/LD 1500 hissing sound in left channel
  193. another studiomaster story
  194. Transformer with 3 secondaries
  195. Need sub woofer controller
  196. Subwoofer controller
  197. APT audio products
  198. how to hook up my preamp for recording??
  199. Class A preamp: please critique my circuit and give me helpful suggestions.
  200. Mixing slope types?
  201. Measuring Line Level Output?
  202. Buss Channel with Noise after wrong soldered bypass Cap.
  203. Volume pot for line level stereo
  204. Studiomaster 16-4
  205. Opinions: Class A Zen Preamplifier eBay Kit
  206. OpAmp based Summing circuit -- Is greater than Unity Gain here a technical problem?
  207. HELP differntial audio
  208. Part needed: Counterpoint SA-1000 tape/source toggle
  209. dc coupled aikido output?
  210. Ipod Stereo to mono summing
  211. DIY preamp component choice
  212. Velleman K8084 Earthing / Grounding
  213. Active Tone Control and preamp. Need help urgent!
  214. Repairing my balanced inputs
  215. Help with preamp build
  216. Tape out of passive preamp into passive preamp/remove resistors?
  217. SE-ONE Spatial Enhancer
  218. Potmeter to balanced amp= Hum; Help!
  219. LEDs as references in current sources
  220. Looking for inkel pp 821 pre amp service manual
  221. Original Mezmerize thread?
  222. Active xover help.
  223. The Effects Of High Resistance Interconnects
  224. dual balanced ne5534 schematic
  225. JA Pre and MyRef - FE Integration
  226. RFI filter and DC blocking cap
  227. Dyanmic mic to electret type input
  228. Help with audio test equipment design
  229. Simple precision constant current LDR controller
  230. How to control 10 pots in active cross?
  231. HF to LF shelving filter
  232. Lawo W990VS/9 - Connection Question
  233. GlassWare Audio
  234. Source select and passive volume for microcontroller-based preamp?
  235. Microcontroller stepped LDR
  236. Newbie question - PCB mounting
  237. PGA2310 based preamp+ remote
  238. Summing Amp Transformers
  239. Krell KSL AC Conversion 110 -> 240
  240. Insert-send to balanced converter
  241. That 1512 fixed gain follow by a second stage
  242. "Tape Out" on DIY Passive Pre
  243. Help to make a pcb for portable stereo preamp ?
  244. Modifying Maplin preamp kit
  245. Help choosing opamp for this circuit
  246. Help! Microphone impedance matching?
  247. adding opamp filter stage
  248. parametric filter to shelving
  249. opamps - fakes?
  250. combine active xo and parametric eq

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