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  1. "The Evil Sandman" Preamp
  2. NEUMANN 3-band equalizer
  3. Court Acoustics GE60 EQ wiring question
  4. Akikido LSA/HPA 9-Pin or Akikido Octal which one?
  5. Bypassing a 100uF output electroytic - which value?
  6. Preamp Noise
  7. Class AA Opamp Schematic
  8. 3-way active XO ... can amp input coupling caps be tailored for the frequency band?
  9. sound effects(echo,bass,repeat,trible)
  10. Aux send Circuit
  11. CD-4 (Quadro) LP-decoder/RIAA
  12. [PROJECT] 4 way crossover with signal detect
  13. Nad S100 pre-amp woes
  14. 50watt class-b amp mx50v6
  15. JLH Liniac Revisited
  16. Balanced mixer output?
  17. Digital XO vs Op-amp XO, which would be best to use in active speakers?
  18. DC powered active Xover w/ balanced outputs?
  19. Smartkit Preamp+psu
  20. DCX2496 into Quest 3004
  21. First ever DIYish Preamp/Remote Volume etc...
  22. NE5534AH pin out requested
  23. Crossover help
  24. Changing the std. opamp of active x-over
  25. Ca 640p
  26. Marchand Crossover Build Help
  27. Splitting Line Level Signal
  28. Multiple inputs for single output
  29. A-weighting
  30. Reckhorn F-1 and others; suggestions.
  31. Analog audio mixer Inkel pro mx-1200
  32. Sugden T48 tuner help
  33. 6ch. volume control + attenuator for DCX2496 on the cheap
  34. Star ground goes extreme
  35. High quality preamp
  36. Behringer DCX - need to do something to it
  37. Input Question
  38. Need Help From The Brainiacs :)
  39. Counterpoint SA5 Preamp Problem
  40. TUBEpre and Lightspeed LDR attenuator
  41. A treble boost line amp
  42. newbe need help with project
  43. Anyone built the phono pre from LM4562/LME49720 datasheet?
  44. pre amplifier build project
  45. Simple Headphone Output to tube Preamp - ideas?
  46. Guitar - iPod - Heaqdphone amp
  47. samson s-3 way xover ?Anyone used?
  48. Need to make 3 line outs from 1
  49. Arduino based Input Selector for preamp
  50. Another Wrench In the Works... Inductive RIAA
  51. DIY Mobile Line Output Converter
  52. Trouble with roland ac-60!
  53. active vs passive time delay
  54. Dead Left Channel on my Kenwood CI Pre-amp
  55. Phono stage with NJM2068DD or TL071/072
  56. Trimmer pots for onboard guitar preamp tone controls?
  57. Passive Bandpass Filter
  58. Using resistor at output to reduce volume of headphone
  59. Balanced "passive" crossover
  60. MAX5486- digi pot help!
  61. gain stages in dynacord mixer
  62. DRV134 pcb
  63. quick and dirty Mono Sum circuit
  64. Anybody interested in checking my PLLXO?
  65. Yet another Volume controlers and source selections
  66. Volume control
  67. low gain 12ax7 schematic
  68. Marantz HDAM Preamp DIY Kit on Ebay
  69. "Crazy" power for preamp
  70. ImPASSe -- transformer transplant
  71. Phono to Aux Conversion
  72. Easiest and fastest way to measure a crossover's transfer function?
  73. Help needed making an RCA Y cable
  74. Anyone heard a Leak 70 ss amp ?
  75. John Curl's Blowtorch preamplifier part II
  76. Meaning of an output's "load impedance"?
  77. Remove mid range boost EQ circuit?
  78. Oscilloscope BK precision 1477
  79. Help whit Ebay/diy zone regulator
  80. Stereoscope Leader
  81. HELP channel select on guitar amp
  82. Looking for service manual of mixer Aeq BC-2500
  83. DAC datasheet
  84. TL072 or NE5532 (or TL074) Which is best?
  85. Ready made graphs that can import data
  86. Rotel + BHC Aerovox 10000uF 63V... worthwhile change?
  87. ultra-low distortion audio oscillator
  88. Home made audio multiplexer (switch) using 4051 or 4052? (74HC...)???
  89. Cable lifts
  90. Question on passive preamplifier - transformer section.
  91. My very first PCB layout - INA217-based mic preamp was the victim
  92. Anyone using microphone cable in making their phono cable?
  93. About replacing the NJM-4559 by LM4562 in this circuit
  94. How to have a 48v+ on McCurdy preamp
  95. Repairing Class A/AB amp with Blown Fuse
  96. Accuphase C-27
  97. Dbx 146221 Ic
  98. Interconnects question.
  99. switch noise
  100. Which Op-Amp? (Afraid to ask really...)
  101. Few questions about Linkwitz' mic amp circuit
  102. Rotel RC-850 Pre Amp + Rotel RB-870BX
  103. active filter 'without' opamps
  104. newbie non solder mods?
  105. Need suggestion for tube MC pre-pre
  106. Schematic needed for Pioneer PL880
  107. obbligato's with vitamin q as bypass
  108. My firtst tube amp
  109. Where to find RF remote stepped attenuator?
  110. Crashing Sound
  111. Exposure 2010 phono board OPamp?
  112. rc4558p replacements?
  113. help with passive line level crossover PLLXO for 33K impedance amps
  114. Headphone amp circuits
  115. Jensen JT-11P-1 Line Input Transformer
  116. DIY phono to replace roksan phono stage
  117. PoorSerbianMan Lightspeed
  118. line level high pass filter
  119. Mechanic hum
  120. Filters - adjustable gain
  121. Power transformer design paper
  122. How to build a simple balanced mono line mixer
  123. Phono Stage...
  124. Importance of quality resistors ?????
  125. Low-V simple phono stage + tube buffer
  126. output standard?
  127. Suggestions on a VCA and amp
  128. Mains toroid as MC step up?
  129. Juicy Music Tercel
  130. IC wiring (ignoring the materials used and hopefully too long a thread)
  131. 2 sources into 1 Stereo
  132. tube box I service manual
  133. DIY tube phono preamp ?
  134. where do I begin to build an eq?
  135. how to? simple wow/flutter measurement
  136. Electrolityc Capacitors Footprints
  137. Choke, filter for white noise
  138. What type cable to use for double shielded driven guard?
  139. HQ Balanced Phono Preamplifier for MC Cartridges using OPA2604
  140. Linear voltage regulator: how to make good use of "sense" and "ground sense"?
  141. High frequency high voltage oscillator - help!
  142. Re-wiring to balanced (tonearm)
  143. Stepped Attenuator giving unexpected behavior
  144. Convert RCA box to XLR (phono)
  145. Simple phono stage (MC)
  146. simulating parallel netfilter
  147. AGC in FM tuners ?
  148. Balanced XLR source RIAA
  149. new phono stage or old preamp with phono?
  150. opamp hum and buzz problem
  151. Newbie looking for preampphono Help :)
  152. Dr. Imbabi’s DIY Power Supply?
  153. A question about diamond buffers
  154. About power transformer of technics st-8077 tuner
  155. KLH / Burwen Research 7000A Mods ?
  156. How big difference of noise between the realistic circuit and pspice simulation?
  157. distortion cancellation for beginners
  158. looking for a Dual H1010V crystal-out DIN connector
  159. winding TVC?
  160. What does the phono ground wire actually ground?
  161. Bridged current-drive amp?
  162. Incognitoed RB300 question?
  163. Super Audiophile Phono-Stage - Battery Powered
  164. Looking for Balanced attenuator ideas
  165. Ipod Power Supply for AC synchronous?
  166. Wiring this as SUT
  167. Mod By Mail?
  168. Denon AVR-600 repair
  169. Help with upgrade to Sansui TA-500
  170. New DISPRE preamp, successor to previous popular version
  171. 1970's Pioneer sound system. Finding matching components?.
  172. Looking a schematic for Electrocompaniet ECI4
  173. Analogue vs. Digital RIAA
  174. D.i.
  175. Need a Passive Mixer Circuit that allows for disconnected sources
  176. braun fm tuner antenna connections
  177. Need help designing custom pbc board
  178. Waxy substance leaking from Pilot multiplexer transformer
  179. mains hum prob
  180. Repair of DBX 3bx Expander.....Where to get it repaired.
  181. Dual balance potmeter with center
  182. Sansui Xr-q7
  183. Stumped---Floppy Drive
  184. Reprocessed for stereo, Rechanneled for stereo and Duophonic
  185. need 5.1 Channel Audio Volume Controller
  186. OPA228 vs NE5534
  187. Help Needed- Westrex Transformers.
  188. Ultra low distortion amp
  189. Best overload performance RIAA opamp pre?
  190. Sherwood Receivers
  191. Replacing RCA cables on AR EB101
  192. MC headamp with opa
  193. Sanity check on an external transformer box.
  194. Max spl of electret capsule
  195. Analogue any good in Sangean HD?
  196. Use of Diodes in mono and stereo signal splicing
  197. Yamaha R5 natural sound receiver
  198. Battery supply.
  199. Dual FET recomendation
  200. How easy is it to convert from 110V AC to 240V AC?
  201. VCA clicks
  202. Preamp/dual source box
  203. how to make a audio source selector?
  204. audio/power/control over cat5?
  205. Log potentiomenter, constant Rin
  206. battery supplied VSPS pre amp?
  207. Designing a phono pre. #1: high gain block
  208. 2200 uf 6.3 v Black gate for 2200 uf 16 vdc
  209. Best emitter / source / cathode follower topology
  210. questions about grounding and noise
  211. THD prediction
  212. Need advice, build control/switch box
  213. Tuner Capacitors
  214. Open-Source Audio Input Switch
  215. Buffered Passive I/V vs. Active I/V
  216. Top of the line Alps pot used in Kondo KSL-M7 preamp.
  217. Denon DP-55K
  218. Carver + null difference test + how can i copy a amp
  219. dts conversion from analog
  220. Tooling (lathe / mill) recommendations ?
  221. Input Impedance
  222. Splitting A Line Level Signal.
  223. Braun PS1000 circuit diagram
  224. Using TRS Audio Jack Switch
  225. Using AES/EBU (DA206) for an analogue interconnect?
  226. Trans Impedance Interface?
  227. Can I convert 200ohm analog audio into 75ohm?
  228. Impedance matching; phono > pot > A/D convertor?
  229. box grounding
  230. Active highpass filter - ground
  231. Routing signal
  232. FM broadcast gear
  233. Mic compressor limiter
  234. Phase control in 4th order butterworth MFB LPF
  235. Lt115 Based Phono Amp (With Pics!!!)
  236. by what to replace the TL072?
  237. OP AMP EXPERIENCES and HOW TO
  238. Capacitor for DC servo
  239. DIY antenna
  240. Preamps: dynamic range or magic sauce?
  241. building a line driver
  242. Musical Fidelity X Series DIN PSU pin outs?
  243. My VU meter
  244. Problem with Cinemag and AA 2006 phono.
  245. Analog Pitch Shifting
  246. How to use DC supply with phono preamp?
  247. 3-way matrix switch
  248. Grounding chassis
  249. solving hum problem using external mic with camcorder
  250. Behringer Denoiser SNR2000 schematics?