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  1. Hybrid single-ended digital input.
  2. Possible DC on output of my pre-amp?
  3. Bias pots keep rising?
  4. A.S.P. - Autonomous Speaker Protection system
  5. audio analogue maestro cd mk1
  6. Need help with Denon AVR 1909
  7. Loudspeaker-Amplifier Interaction
  8. Need help with a Rotel RA-970BX
  9. Strange slight hum + noise issue
  10. SS Class A Input/Output AC-coupling caps: How big = too big?
  11. Audiosector LM3875 Amplifier Help! / Questions
  12. Cree CMF10120D
  13. Calculating current draw of SS Class A amp
  14. B&K amplifier ST140
  15. Voltage Regulator 'CV/ABV'
  16. RJM Audio R40 (make fun of my amp)
  17. monacor sta-500 schematic
  18. Schematic Monacor sta-500
  19. Electrocompaniet power amp repair
  20. Searching fro Proton 1100 Preamp
  21. Very simple quasi complimentary MOSFET amplifier
  22. subwoofer amplifier with 2sa1943&2sc5200
  23. Rotel RA-04: There is still sound even volume control is turned to zero.
  24. Simple class b amplifier problem
  25. Home theater subwoofer input board question
  26. Luxman LV-105u MOSFET upgrade success
  27. UA Solo-110 Regulator Problem
  28. Little dual mono... Any ideas?
  29. COUNTERPOINT NPS-100 BIAS
  30. Advice for new DIY Ampli
  31. modifying a Sanyo JCX-2600K
  32. Re-Capping Luxman M-120a Power Amp Advice sought
  33. Mark Levinson 23.5 bias procedure
  34. Recommend me a project.
  35. Opamp based power amp
  36. 25wpc mosfet mapl-in kit wipes floor with 2 x cambridge A60 biamp
  37. solid state plate amp KIT
  38. Just an observation about voltage swing in actively crossed-over tweeters.
  39. dirkwright line stage preamp
  40. Sought expert advice on my amplifier circuit
  41. Smokin' Marantz SR1000
  42. conterpoint NPS-100
  43. Dx Amplifiers, all models will be shown here
  44. A more efficient class A output stage
  45. Musical Fidelity A1 Channel Imbalance
  46. Headphone amp - POP sound will powering ON and OFF
  47. Multi pack smd/tht input transistos
  48. The many versions of the NE5532 and it is confusing!
  49. Quad 34 on/off switch. Desperate.
  50. Are Proton AA1660 amplifier still available?
  51. Recap with Reason: Sony TA-N80ES Amplifier Refurbishing Project
  52. Output power - high voltage or high current?
  53. Faulty JVC MX-GC5
  54. NAD 1300 - Problem with static
  55. voltage doubler for TPS7A4700
  56. Ultra Low noise voltage regulator IC till 80Volts?
  57. NAD amplifier disabling Power Envelope circuit
  58. STR-DN1000 power-up problem
  59. What solved the problem...
  60. Kenwood Ka-2600
  61. Rotel RA840BX service
  62. Finishing a custom made power amp...
  63. aqvox + primare
  64. NAD 3300 Amplifier repair question
  65. Proton AA1660 switch issue
  66. 2sk1058 for class A what should be the max heat dissipation preferred?
  67. need help with crest 2500 poweramp
  68. (ask) ZCA 2sk1058 mosfet amplifier
  69. Threshold SA-1 keep main fuse blown
  70. Two audio schematics-comment?!
  71. SuperA Class AMP "Nataly EA2012"
  72. V.2012 PRO. Composite Audio amplifier
  73. 900W Class H Power Amplifier
  74. PCB for audio ammplifier with mj15003/mj15004
  75. Creek 4240 Volume / channel issue
  76. Peavey PV-500 schenmatics.
  77. output inductor placement idea, does it work
  78. Help with ocillating amplifier !!
  79. What headphone amp to build?
  80. The David N.J.White 100W MOSFET amplifier
  81. "Dumb" Krell Class A Question
  82. Quad 306, an underrated masterpiece?
  83. Yamaha PC-2002M
  84. Marantz 1090 shorted output stage
  85. Audiophiler Capacitor Red compared to any Mundorf Supreme as coupling cap?
  86. curious observation re: Hafler TA-1100
  87. LME49810 minimum safe working voltage not according to the datasheet
  88. Experience with Savoy G3
  89. Rotel RA-840BX3 repair?
  90. Help hooking up transformer
  91. Hafler dh200 2sk134 mosfet transistor
  92. pioneer sx1010 zener diode voltage
  93. Adcom GFA 5400 questions
  94. Measuring Power Amp Output Impedance
  95. Skytec PA-200, smoke and volume not working
  96. NAD 7155 Preamp help needed
  97. cyrus 8v2 with buzz after 2 hours
  98. Wilson-Cfp by Stee
  99. Problem with DC offset and stability
  100. Sansui AU-517 Capacitor Recommendation
  101. Acurus RL11
  102. Kenwood KR-V55r DC present on both channels. A lot.
  103. Pioneer sx 1010 power problem
  104. Onkyo M-504 Upgrade to LED lights? Help!
  105. Subwoofer amp - too much bass!
  106. Help to fix C-Audio GB402 Amplifier
  107. NAD C320 fixed (another protection circuit problem)
  108. If replacing differential input pair; also replace current source transistor?
  109. One single output pair per channel is a good thing ?
  110. Quad 99 system transformer hum
  111. calculating the resistor & capacitor values in class a amplifier
  112. Lots of noise when input is unconnected
  113. Mosfet source follower output impedence
  114. Harman/Kardon 430 - Need help with strange powerup noise
  115. Gallien Krueger 800RB Hi Channel Problem
  116. Transistor heatsink question
  117. lme49810 DC servo circuit.
  118. 300w power amp
  119. What can cause noise in this design?
  120. SYBELIUS 3 plus - ultimate high design
  121. Help repairing Sub AMP
  122. Sansui Diamond Differential PA Simulation and possible build
  123. Krell KV300i input selector board removal
  124. Replacment transistor for hitachi 2sc2b1 ? Its in a Sansui AU 555 A
  125. Yamaha M45 low pwr issue pretty interesting.
  126. Brocken amp..noise like thunder
  127. Rails Decoupled SE Amplifier
  128. DVD/CD output and power amp input specification.
  129. Bose 550 Receiver Has DC on outputs
  130. AEQ model 250 schematic
  131. Transformer coupling instead of cap?
  132. Krell 200S
  133. HH Electronic VX-150 MosFet
  134. Power supply for power amp.
  135. Making a VCO. Design help needed.
  136. DoZ in a Hafler 220? Or. . .?
  137. Roland RE-201 tapeecho improvements
  138. Burmester 933 mk2 Clone from Jims Audio
  139. Harman-Kardon hk6200 repair
  140. Needed - Service Manual For Luxman L-110
  141. Powering front end of amplifier
  142. New Project: The Silver Fox
  143. Dual Diff Amp Question
  144. What can I build with these? 4 pairs of 2SC5200/2SA1943
  145. LM 3915 mode change
  146. Pioneer SX-1080, after re-cap problem w. center voltage & idle current
  147. CFA Enhancements
  148. Peavey PV900 schematics
  149. Power amp ideas.
  150. Got taken on yasmaha m45
  151. Marlboro PA chip conversion question
  152. Diagrams required
  153. Another 100W hifi amp
  154. Repair help needed - Creek Destiny
  155. Power Supply for PGA2310 project
  156. yamaha b1 amp
  157. Parasound HCA-800II and C/PT-600
  158. Peavey Delta Blues Reverb Mod
  159. Help, In need of Service Manual for Cambridge Azur 640A V2
  160. NAD 7250PE Repair From Driving a Shorted Voice Coil?
  161. Need help with college project - Trying to build a 3 stage amp but I'm lost
  162. Digital Attenuator for Balanced Lines?
  163. Onkyo R1 AV amp
  164. GFA 5503 Bias adjustment
  165. Onkyo Dynamic Four 800 - Schematic for modification
  166. yamaha A-1020 amp
  167. Changing my old VFA designs into ONE-BEND CFA plus Current Drives
  168. H/K Citation Sixteen Parts
  169. Rotel Rb890 hum on one Channel
  170. Sansui AU555-A D001/D002 replacment diode?
  171. Diamond Wilson CFP - Roger Amp
  172. DIY Buffer Pre Amplifier with phono stage
  173. Single ended class a build. noob question
  174. Experimentations on Regulators
  175. Perfect Stranger - Innovative Amplifier
  176. Pioneer amp board with IC drivers.
  177. Technics SA-80 distorted right channel
  178. Please help educate - T300 & VSSA level matching
  179. transformer amplifier zero feedback
  180. What do these resistors do? :(
  181. Watercooled HEXFET Power Amplifier
  182. A simple question about performance
  183. bridge adapter
  184. CROWN DC-300A SERIES II RESTORATION
  185. OLDER PIONEER PREMIER Specific Amp line
  186. Resurrecting a BGW 750B
  187. Op-amp swapping MC330789 to OPA627
  188. Sudgen p28 Bias current
  189. Rotel service manual biasing...
  190. My Blameless
  191. Amber Series 70 Fuses
  192. Bi-Pak AL60
  193. yamaha M35 amp led meter
  194. Yamaha M45 amp led circuit schematic
  195. Does this amplified topology have a name
  196. The affect of mismatched impedance
  197. Acurus A150
  198. trace acoustic ta100r repair help
  199. New to forum - Buzzing noise
  200. resistor colour code
  201. help!!!!
  202. Arcam Alpha 10 overheating issues
  203. TEAC AG 4200 relays?
  204. Unique CFA 120/230W amp
  205. Direct NFB Pure Amplifier 2
  206. Crimson CS 620D
  207. Sansui 350
  208. Driving a 4-8R speaker with a single transistor Class A amp?
  209. Turbo 225 amplifier (SGS)
  210. excelinear 2014
  211. CFP OUTPUT 100W*2 MX100 MY design
  212. Amp starts humming when volume pot is attached
  213. Cannot get 2SK170 2SJ74 Spice model to pass more than 0.4mA
  214. Second opinions on balanced inputs
  215. Availability of "current-drive" amplifiers as commercial products
  216. Amp with unfamiliar input stage - DC offset problem
  217. 2SJ118/2SK413 schematics
  218. Making a bipolar electrolytic capacitor
  219. Sap Transistors?
  220. Twisting transformer secondary's
  221. Adcom gfa-555ii killed my speakers
  222. Crown DC-300A No Mono/Dual Switch
  223. Repairing surround channels on a Marantz RS3559
  224. Behringer GM110
  225. can I have 5 m cable, quad 35 to 405 amp
  226. NAD 3125 Circuit Diagram
  227. pioneer stereo reciever sx-1080
  228. common value of output stage noise in uV?
  229. Dynacord L2400 output board schematic
  230. Bryston 3B Restoration problems
  231. Protect Headphone Amplifier Output from Accidental Arcing of Electrostatic Driver
  232. Prototype Printed Circuit Board vendors
  233. Where to find Toshiba Semiconductors today (2SK389, 2SJ109, 2SK170, etc?
  234. Musical Fidelity A1000
  235. Parasound 2250 Amp Schematics?
  236. Crown Macro Reference Bias calibration
  237. DC blocking caps in modern amplifiers?
  238. Replacing capacitors in the tuner area
  239. Source of 680nF 2% caps.
  240. first amplifier build. will my schematic work?
  241. kenwood basic M2 problem
  242. Looking for Soundcraft Spirit FX8 Schematic/Info
  243. Which combinations of transistors should thermally track
  244. Technics SA-300: dead FM tuner
  245. Krell KMA-160 schematic and biasing info needed
  246. MCU from NAD T-752
  247. gemini vintage amp need info please
  248. Help with TeddyReg
  249. NAD S300 normal operating temperature?
  250. Harmon Kardon HK650

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