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  1. loudness button adjustment on the circuit board?
  2. Nad c 355 bee integrated amplifier light?
  3. Question about circuit design
  4. ARCAM Alpha 10 amp
  5. What better sound quality build after LM3875 and Class D 2020?
  6. Voxson HR313 schematic
  7. Wega amp RCA problem
  8. amps, speakers and ohms
  9. Anyone willing to help?
  10. Sony TA-FB940R dc issues?
  11. Burson Soloist Issue and Troubleshooting
  12. Power Supply for MX50 SE Power amplifier
  13. NAD C325BEE - burnt components on AMP-SMD-L BOARD
  14. Output transistor complentary pairs
  15. Paralleling the IRF mosfets
  16. Crest CKi 800v
  17. is this good setup?? :wave2s:
  18. Surround decoder dilemma
  19. GFA-555 Help Please. (pics attached)
  20. lme49830 whats the role of Cb2 here and how much it has to be when biased high
  21. Idling current for Krell KAV 300i
  22. Hum and Buzz Issue
  23. Crown XTI 2000 fries RT6 at turn on
  24. Bulbs replaced With Leds, about resistors?
  25. Help needed with NAD 7600 idle current
  26. BC546 spice model
  27. Scott A 426
  28. Nad 302 volume pot replacement
  29. sansui B77 power amp
  30. Another Son of Ampzilla rebuild.
  31. Best amp with 2sk1058
  32. roender's shunt regulator
  33. How do you match tempco between spreader and power transistor?
  34. Elektor "The Complete Preamplifier" articles.
  35. Speaker selector, OK for amp?
  36. cannot explain the circuit
  37. Very basic clipping indicator
  38. Replacement transistors for HK 6500
  39. What's this diff input topology called?
  40. About power amplifier input? Thanks.
  41. About power, bi-amping?
  42. Global Feedback - A huge benefit for audio
  43. question about mosfet direction
  44. Yamaha RX 495
  45. Veroboard Maplin Amp
  46. Adcom GFA-535 blowing main power fuse
  47. what is the difference between 2SC5200 and 2SC5200N
  48. Please check my heatsink estimate
  49. Multiple Feedback Filter Design doubt
  50. Musical Fidelity a3cr power amp modifications
  51. technics SU-7100 help
  52. Mounting amp upside down
  53. The Brief History of my life with SECA designs
  54. Technics SE-9060 vs multiple compŁarison?!
  55. OP amp driving MegaOhm load
  56. grounding issues with integrated amp
  57. AV Processor
  58. Hafler
  59. Yamaha RX-Z9 in protect mode
  60. LME49830 with ALF16N8P x 10 per rail
  61. Class AB Amp Questions.
  62. Anyone tried broskies "super triode" circuit to drive efficient sub?
  63. Arcam Alpha 2 Help/Advice
  64. Solid State Power Amplifier Kits (Modules) - Listening Tests wanted
  65. Surges and spikes
  66. About AV receiver as power amplifier?
  67. Pegeant AV-126-TR Projector
  68. Pcb request
  69. NAD 3020 recap
  70. Need information of preamps.
  71. Cambrige Azur 740A int amp Bias and offset adjustment ?
  72. Adcom ga-5802
  73. Speaker impedance with output transformer
  74. Pro Audio High Fidelity IPS
  75. Hi End 3 Band Tone Control DIY Kit - Bass Mid Treble
  76. Would this be a suitable replacement for 2sd675
  77. NG'ANYA: the art of entertainment
  78. Adcom GFP-555 upgrades from AudioXpress
  79. IRFP240 + IRFP9240 + EBAY...
  80. Pre amp for $1000.00 ???
  81. VA load - simple resistor or bootstrap
  82. EU transformer for an Hafler 9505 Transnova?
  83. Cambridge Audio A300 manual/schematics needed
  84. Double Barrel Leach underway
  85. hd amplifier bias
  86. Credo PMP154 question
  87. Rotel amp no IC version
  88. Balance control-where in the preamp chain should it go?
  89. A JIG for testing amplifier polarity
  90. Question on this schematic
  91. Haffler mosfet stuck on heat sink
  92. Left channel sometimes starts later on Marantz PM-54 II
  93. Technics SE-C01 power amp
  94. Query on BF471 as VAS
  95. Restoring old 2N3055 based amp, need advice
  96. based on Graham Dicker DIGI amp
  97. 4 watt no-gnf hybrid
  98. Is low differential input impedance of opamp not important?
  99. nad amp 701
  100. Little help with this amp please.
  101. Revisiting some "old" ideas from 1970's - IPS, OPS
  102. denon pma 260
  103. from DIY Indonesian Amplifier
  104. Soundstream D200 clone,few hours,nice sound
  105. Lampizator - Fetishizator
  106. Sinclair schematics
  107. nad 701
  108. Onkyo A-9155 - no sound but power
  109. Oliver Offset Optimiser
  110. Is discrete better than chip op amp
  111. Parasound HCA-1000A No Sound
  112. Where to measure the bias on P180?
  113. Popping sound from Left Channel of Marantz PM7002
  114. IC preamp vs discrete preamp - Different?
  115. Crest VS900 burning hot resistor R92
  116. Adcom 5400: using lower capacitance caps
  117. Help please Ne5532a op amp chip
  118. Symasym, opinions please.
  119. sub amp
  120. Low on bass SONY TAF530ES/TAF222ESR
  121. Shreek Protection at turn on
  122. Help w/Yamaha RX-550
  123. Suggestions Fuse Protection?
  124. Need advice on Power supply
  125. please check my work
  126. Nad C270
  127. Cambridge Audio A1mk3SE repair
  128. Picked up a beautiful, almost mint DC 300A. Now what?
  129. Power amplifier with 2n3055/mj2955-schematic
  130. Help with power supply repair
  131. Search Onix A-120 Schťmatic
  132. Apex BA1200 offset problem.
  133. Film caps are directional as well?!
  134. Sony TA 3120A
  135. Strange Amp Design?
  136. Question regard japanese voltage amp in us
  137. Large offset and large differential input to input pairs... but amp works..?
  138. amplifier TDA7294 + power supply smps
  139. Required grounding scheme for zero 60/120hz hum.
  140. APEX HB 1200 TEF
  141. My etching tank made out of k'nex..... (serious)
  142. Which Fuses For My Nikko
  143. Audio PCB's with Sprint Layout ?
  144. So... should I build this?
  145. New type of Toshiba 2sc5200/2sa1943 or FAKE?
  146. Technics SU-V3 negative voltage at output!!!
  147. Noise in my stereo tda2003 amp
  148. Input capacitor question
  149. sansui B77 power amp
  150. Seek advice on simple & very good sounding class A/B output stage.
  151. Jfet complimentary input stage or Jfet LTP?
  152. Chassis Design using Mosfets
  153. Solid State Rail Fuse Replacement
  154. qinpu a3 doesn't relay click
  155. Assembled mosfet amplifiers from ebay
  156. Nakamichi TA-3A Sound Not Working
  157. Adding a Jfet input stage for the power amplifier improves sound quality?
  158. output voltage at speaker terminals
  159. Looking for schematic for Pioneer SX-40
  160. Sansui AU-4900 problem
  161. Techno SAP130 STD03P STD03N 130 Watt HiFI
  162. Need help setting idling current on old Philips amp
  163. blown amplifier channel (TDA2003)
  164. Single Ended Class A, No global feedback, 8W, MOSFET, low output Z
  165. Upgrades for Rotel RB-991 Power Amp
  166. Doxa 70 Signature Series Mk2 and BD245C/BD246C
  167. Darlington VSSA
  168. AB International 600LX Test Results
  169. Correct Naming for Pioneer/Akai Speaker Terminal used in Solid State Receivers wanted
  170. crest audio 8001 - input board details
  171. Alesis RA-500 troubles
  172. Crest Pro 9200 help
  173. Advent 300 stupid mistake
  174. Help with Kenwood M2A
  175. Emotiva DC-1 grounding mod
  176. Epsilon LT-model
  177. 2n3055 amplifier
  178. Marantz pm57
  179. How to make the PCB layout and routing better
  180. Miraculous Germanium Transistors from China
  181. Bose model 550
  182. Audio Research - A15 , Roterdam
  183. Luxman LV-105U volume pot
  184. Denon PMA-900V lowering gain/opamp swap
  185. problem with a Crest 8001 power amp
  186. LME 49710 opamp; difference in available types?
  187. C Audio TR 850 Schematics?
  188. Pioneer P4600 went dead after setting high volume
  189. Beginner trying to upgrade old speaker set with amp
  190. Parasound Amp - curious current overload
  191. Blown output transistors in Earth Original 2000
  192. Quad 306 -- Trouble shooting
  193. Adding shunt capacitor and resistor in zobel causes instability - Any ideas why?
  194. A power amplifier with 2SC2922SA1216
  195. super simple Jfet crossover
  196. Ampzilla Power Meter Schematic
  197. Pros and cons of using JFET input stage
  198. Negative 5 volt on Adcom 555 MK II
  199. Anyone help me with this amp?
  200. How to improve a Sunfire 300x2 amplifier?
  201. how to measure watt of an amplifier
  202. Unbalanced channels at low volume level.
  203. Diy stereo bluetooth portable speaker help
  204. the IPANEMA AMP
  205. Consonance Calaf, repairs and mods
  206. Strange problem with NAD 1020a pre-amp
  207. 2SJ74 NI Multisim model please
  208. Power Amp Front End with integr. OpAmp and Signal Pad by Power Supply Rail - Naming?
  209. Nakamichi RE-2 Receiver. Possible upgrades ?
  210. Thermal Track transistors bias stability at 25V 1Amp?
  211. Quad 303: setting 33.5V problem
  212. Yamaha RX-V690
  213. Luxman L1 problem
  214. Topaz Line 2 Power Conditioner
  215. question on speaker protection circuit
  216. Replacing low value electrolytics with film caps ?
  217. SCR for my Soundcraftsmen MA-5002
  218. What was this amplifier?
  219. Output impedance of Yamaha CA610ii headphone jack
  220. erno borbely super shunt regulator
  221. NAD 2200 power supply - time to recap?
  222. Parasound HCA-2200 service manual
  223. Yamaha CA-610ii
  224. Help with a dead Pioneer A-447
  225. Pioneer SA-7300 advice needed.
  226. Sanyo System 566 Right Channel Broke HELP!!!!
  227. Ask for help of this mosfet output amp
  228. Aux Audio power supply
  229. Please help me convert this amp
  230. Some questions about this kind of current source
  231. AZUR851A schematic (of amp PCB only) anyone?
  232. Tda1515bq amp portable speaker
  233. The Ultimate Amp??
  234. IC for Subwoofer?
  235. hifonics brutus brx2400.1d
  236. Upgrade Marantz PM-54 II phono stage
  237. Tesla NZC-431 Repair
  238. NJW0281G / NJW0302G instead of 2SC5200/2SA1943
  239. Fixed Bias (no bias control) and Upgrading Output Transistors
  240. How important is the preamp?
  241. Ask for help... buffer add to curcuit with DC servo becomes unstable
  242. Custom Heatsink
  243. Marantz 2230 weirdness.
  244. TO-220 output transistors for power amp
  245. My own 80W/8R amplifier need help
  246. I need help on an SS design
  247. Sony STR-DE675 problem..
  248. super simple DC detect for balanced amp
  249. How to build a Hackernap ?
  250. Choice of nulling trimmer and slew rate with CA3140T Op-Amp

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