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  1. Differential Line Driver - Impedance Questions
  2. opa 2889 buffer circuit
  3. Help needed with diy outpout switcher relay based
  4. How to make a volume control 50cm from pre-amp?
  5. MAT02 transistors on eBay, are they genuine?
  6. Newb interested in DIY preamp
  7. Help hooking up a car VU meter unit to a home AV reciever
  8. Modular Preamplifier with IC Class A (SAM Electronic Circuits)
  9. Discrete opamp vs regular op amps
  10. Bob Cordell's VinylTrak
  11. NE5532 Tone Control
  12. Muting arrangements for ESP kits: P05B and P09B
  13. Schematics for c3m based preamp
  14. TA 377A preamp
  15. preamp and active filter for class AB amp
  16. Getting a PGA2310 to be silent
  17. SPL EQ Magix studio mic preamp
  18. What's wrong with this typicial preamp circuit?
  19. How Many Line-Level Components?
  20. Need to make a simple balance control
  21. DRV134 and protection diodes
  22. Passive line level 3th order RC XO with no insertion losses?
  23. That 1646 balanced line driver PCB
  24. Help with a PLLXO
  25. LME49990 design note
  26. Cg in THAT 1512
  27. Transistor Preamp Design for ADC
  28. P1 preamplifier
  29. MUSES 72320 electronic volume
  30. DIY 1/2-inch Measurement Microphone
  31. Adcom GTP-450 - Right Channel Fades Out
  32. Passive pre for my AudioSector
  33. Capacitive crosstalk between input/output wiring
  34. Cantilevered-Cascode Buffer (CCB) aka LinuxBuffer
  35. Accelerometer to audiointerface
  36. Home Theater bypass for a tube pre amp - Help!!!
  37. Ultrabass, psychoacoutstic low bass for little speakers
  38. Discrete Opamp test circuits
  39. Inverted Polarity of tube Pre-Amps
  40. Looking For Someone To Build A Vandersteen X-2
  41. Configurable active crossover - Newbie jumping in feet first
  42. Mic Preamp Improvements? (Soundcraft 800B)
  43. electret mic preamp gain
  44. Question about active crossover
  45. Rod Elliott ESP opamp pre's question
  46. Design questions for opamp-based preamp
  47. Preamp with remote using radio not ir
  48. Squeaking Noise with 48V in DAV BG1
  49. I need mini Pre-amp board, please help
  50. IS THIS EARTH LOOP,LEAKING CAPS OR BROKEN LINK?
  51. looking to build a "classic" tube compressor
  52. lm833 single supply
  53. How to protect device from contamination through output
  54. Lundahl LL1545A hookup question...
  55. Inverting rail to rail unity buffer
  56. Subwoofer Controller Kit - Altronics Kit No K5562
  57. Replacement cap for Wima MKP10 0,047UF
  58. Programming of Oxmoor equalizers via PA-422
  59. Help in choosing a potentiometer as a "Passive preamplifier"
  60. Test IC TL074 CN
  61. Relay audio switcher
  62. Analog audio switcher
  63. BSS FDS 340 crossover
  64. Discrete Logic ABX Switch Box
  65. Audio System Controller
  66. the definitive opamp decouplig question
  67. buffer stages performance
  68. Rolling the RANE AC23
  69. Automatic Line level Attenuation Circuit
  70. Check my Opamp Preamp Please
  71. Choosing an active 3-way crossover
  72. Please suggest to me the best affordable LDR preamp kits
  73. Custom Rotary DJ mixer.
  74. Programmer-help for fleabay-remote-kit
  75. Wiring advice for internal pre amp inputs
  76. Discrete Opamp Open Design
  77. microprocessor And control
  78. Latest project.
  79. Remote control won't shut up
  80. Looking to DIY a DI box -10dBv to +4dBu
  81. pre amp suggestions, DIY or Non DIY, Im easy
  82. Musical Fidelity Pre Amp II
  83. Help with DIY passive balanced line level attenuator pads.
  84. RF-blocking???
  85. Jfet Line preamp, to cascode or not.
  86. Mic pre strange high-freq boost (what is broken here?)
  87. New pre amp coming. Change over to 115V help...
  88. XO of Mission 770mk2
  89. Equaliser design for a total n00b
  90. Trying to remote control volume on vintage HK
  91. Passive Pre Chassis and Budget Allocation
  92. Linkwitz Transforms
  93. INA217 is noisy
  94. need sound attenuator
  95. NAIM NAC 42.5 Vintage for my updated NYTECH CPA 602 - 2012
  96. Volume Control Problem
  97. Balanced Signal over 500 Metres!
  98. Single voltage powered Tone Control
  99. PGA2320 and Atmega8 Bascom Source Code Problem
  100. Tone Control Filter
  101. phase linear filters - any good?
  102. Summing (2x) opposite-phase signals with Transformers
  103. A circuit to monitor the analog audio line level
  104. diy Pre-amp question
  105. Critique please: Analogue -> Digital (TOS-LINK)
  106. Circuit Diagram wanted
  107. Xkitz 2-way Active Crossover Kit
  108. Need orientation with tweaking a TASCAM MF-P01
  109. Connecting Multiple op amp inputs from a single op amp output
  110. digital output
  111. Balanced Buffer Needed with a Balanced Volume Control?
  112. $150-200$ Preamp Build?
  113. Balanced tube preamplifier: suggestions?
  114. Adding summed output for sub
  115. Please help me understand this circuit...newbie here
  116. lpf and hpf setting.
  117. After search...need schematic to stereo preamp with only 4 bjt transistors
  118. Help with Zero Field input circuit
  119. The XCEN -- Balanced to Single Ended Converter
  120. Building active cross-overs into multiple power amps?
  121. "Firefly" Unity Gain Buffer
  122. Parasound P/LD 1500 hissing sound in left channel
  123. another studiomaster story
  124. Transformer with 3 secondaries
  125. Need sub woofer controller
  126. Subwoofer controller
  127. APT audio products
  128. how to hook up my preamp for recording??
  129. Class A preamp: please critique my circuit and give me helpful suggestions.
  130. Mixing slope types?
  131. Measuring Line Level Output?
  132. Buss Channel with Noise after wrong soldered bypass Cap.
  133. Volume pot for line level stereo
  134. Studiomaster 16-4
  135. Opinions: Class A Zen Preamplifier eBay Kit
  136. OpAmp based Summing circuit -- Is greater than Unity Gain here a technical problem?
  137. HELP differntial audio
  138. Part needed: Counterpoint SA-1000 tape/source toggle
  139. dc coupled aikido output?
  140. Ipod Stereo to mono summing
  141. DIY preamp component choice
  142. Velleman K8084 Earthing / Grounding
  143. Active Tone Control and preamp. Need help urgent!
  144. Repairing my balanced inputs
  145. Help with preamp build
  146. Tape out of passive preamp into passive preamp/remove resistors?
  147. SE-ONE Spatial Enhancer
  148. Potmeter to balanced amp= Hum; Help!
  149. LEDs as references in current sources
  150. Looking for inkel pp 821 pre amp service manual
  151. Original Mezmerize thread?
  152. Active xover help.
  153. The Effects Of High Resistance Interconnects
  154. dual balanced ne5534 schematic
  155. JA Pre and MyRef - FE Integration
  156. RFI filter and DC blocking cap
  157. Dyanmic mic to electret type input
  158. Help with audio test equipment design
  159. Simple precision constant current LDR controller
  160. How to control 10 pots in active cross?
  161. HF to LF shelving filter
  162. Lawo W990VS/9 - Connection Question
  163. GlassWare Audio
  164. Source select and passive volume for microcontroller-based preamp?
  165. Microcontroller stepped LDR
  166. Newbie question - PCB mounting
  167. PGA2310 based preamp+ remote
  168. Summing Amp Transformers
  169. Krell KSL AC Conversion 110 -> 240
  170. Insert-send to balanced converter
  171. That 1512 fixed gain follow by a second stage
  172. "Tape Out" on DIY Passive Pre
  173. Help to make a pcb for portable stereo preamp ?
  174. Modifying Maplin preamp kit
  175. Help choosing opamp for this circuit
  176. Help! Microphone impedance matching?
  177. adding opamp filter stage
  178. parametric filter to shelving
  179. opamps - fakes?
  180. combine active xo and parametric eq
  181. Discussion of CCS control for LED/LDR volume adjustment
  182. Small Signal Transistor and Diode Models from NXP
  183. Output Transformer Waveform- Is it good or not?
  184. TL082 Preamp Instability
  185. HELP! line-level crossover design for solar-powered biamped soundsystem
  186. How to integrate Baffle Step Compensation into existing discrete linestage?
  187. Fundamental Oscilliscope Usage
  188. Balanced buffers - analogue volume control
  189. A second order active filter with single supply - Zin ?
  190. Tamradio 600:600 Transformers
  191. Input bias current and impedance of an op amp?
  192. Otari MX7000
  193. Vca's
  194. Optimum value for R(s) in a JFET follower?
  195. Active preamp gain
  196. complementary jfet input trimmer
  197. Looking for a PGA2320 PCB
  198. Looking for discrete high performance linestage design with 12v rails
  199. Which power transformer for low hum?
  200. 2SA1015 SRPP follower bridge mode
  201. H/K 595 subwoofer connect to Aiwa reciever.
  202. Aragon 47k Schematics?
  203. Best OP-amp for EQ circuit?
  204. Broskie
  205. Active Stereo Preamp , OPAMP VS TRANSISTORS , which on would you prefer ?
  206. XLR jacks
  207. Which Aikido?
  208. Electret Mic Power Circuit for PC Input
  209. Soundcraft B100 (TL072...again)
  210. XLR, RCA and CMRR - a few questions
  211. Help Designing Preamp Schematic
  212. Here's a weird enquiry
  213. C1583 & A798
  214. Volume Control with symmetrical out and in
  215. Building a Tee attenuator
  216. Noise in balanced outputs - Parasound
  217. Need some advice on a level booster...
  218. INA134-DRV134 balanced preamp
  219. how to add protection circuits (swith circuit)
  220. resistor(s) in ground paths to reduce hum, etc.
  221. My (quick and dirty) take at a PLLXO for OB, help is welcome
  222. Lundahl LL1530 - audio application?
  223. SP-6 Light with ECC801S
  224. Active crossover help
  225. Line Level Preamp, Using JFETs, in a can.
  226. Replacement push buttons for hafler?
  227. My fuzz pedal project is behaving badly
  228. My fuzz pedal project is behaving badly
  229. Op-amp Upgrade
  230. Output transformers for Line-level signal.
  231. PGA2310 control module
  232. Shields in internally balanced equipment
  233. First effort: MM/MC phono preamp with DC servo
  234. How to figure gyrator treble boost gain
  235. AirTight ATC-2 Preamp Pictures
  236. Need help with the NE5543N opamp
  237. help building a crossover/lowpass filter
  238. Poles and throws?
  239. DC buildup in Linkwitz Transform
  240. BOZ (bride of Zen) advices asked - things to do/avoid
  241. DIY STEREO MIC-PREAMP for DSLR-Video
  242. Adjustable Linkwitz-Riley filter: Help needed with SPICE
  243. Variable active high pass filter .
  244. What advantage to use OP to summing signal ?
  245. Transformer malfunction??'
  246. Fader Penny Giles and Active Level control
  247. Is this filtering really needed ?
  248. Need help with ebay PHONO TURNTABLE PREAMP PREAMPLIFIER PCB DIY KIT
  249. Balanced vs Unbalanced -Basics
  250. Humorous mistake in Douglas Self Active Crossovers book

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