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View Full Version : Pass Labs


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  1. Who is this Pass fellow anyway
  2. ZEN V4 cascoding ???
  3. Take a look!
  4. Improvements Pass Labs X 2.5
  5. Thank you for the Chocolates
  6. Threshold NS10
  7. Zen4 owners: What speakers are you using?
  8. Zen V4 C1 and C4
  9. Zen vs. GainKlone
  10. Aleph / Aleph X PCB Help Needed
  11. parallel toroidal X'former
  12. My first FET matching
  13. aleph 5 boards
  14. E/I transformer laminations; why?
  15. PSU for BOZ
  16. power output stage
  17. ZenV2 Hum
  18. ZEN brothers and low efficiency speakers
  19. Alpeh Ono Connector Question
  20. New heatsinks for my upcoming Aleph 5
  21. Threshold sl-10?
  22. Aleph 2 Board Design
  23. EI Vs Toroidal transformers
  24. Balanced line stage gain problem !
  25. Heat
  26. my SOZ with Regulated PSU...
  27. Choice of driver for El Pipe-O
  28. Amplified speakers
  29. to-204(to-3) and to-247
  30. X = bridged = push pull ? ...
  31. to what values I should go with irfp 9610
  32. aleph 5 capacitor rating question ..
  33. Power factor reaction of CLC of CRC filter
  34. Any one built the Penultimate Zen Tube
  35. Building a 5 channel BLS
  36. (x) (x) = N_p
  37. aleph-what number i dont know whether 4 or 5
  38. Parallel Amplifiers ?
  39. Bridge Rectifier Temperature?
  40. aleph 2
  41. 'Evil Twin' of Zen V4
  42. My baby is HOT!!
  43. Another Aleph-X coming up!
  44. Transistor Thoery Help. Thermal Runaway
  45. Aleph 2 problem!Help...
  46. Aleph 2 heasink temp
  47. X-lite
  48. about Aleph P
  49. Will Adcom GFP-750 drive SOZ?
  50. Power MOSFETs -- real or fakes..??
  51. Aleph amp bootstrap - where to go?
  52. Dual FETs for differential pair
  53. Zen Linestages, X and unbalanced operation
  54. any matched transistrors needs to zen v4?
  55. SOZ < 1 watt possible ?
  56. Monolithic SuSy with Dynamic (idle current) ClassA ?
  57. Plitron Lono 2KVA Transformer
  58. Home Entertainment 2003! Attn: San Francisco Bay area residents
  59. X Preamp
  60. Battery powered Balance Line Stage
  61. Dumb Question on Bias Aleph amps
  62. How much is toooooo much?
  63. Yet Another Aleph2!
  64. Hiraga vs. ZEN or SOZ
  65. Foreplay Line Stage Pre-amp
  66. DIY-Pass-OP with only N-Fets ?
  67. Heatsink for SOZ 10W
  68. BrianGT Aleph board Question, C7 and C9
  69. Check Alph Ono inverter stage
  70. Zen v4. wiring problems
  71. Home Theather Bypass relays
  72. newcomer
  73. My new Aleph layout. Comments?
  74. Resistors & doubts ;(
  75. Sorry Nelson, but I have found an error ...
  76. Resistors at Mouser ...
  77. bls / aleph boards
  78. Waveform distortion on Aleph 30!
  79. Need I say more? A60?
  80. voltage doubler for small Aleph?
  81. 2sk1530 for zen v4?
  82. Cascoded designs for old Pass circuits
  83. Zen 4 Amp Coils
  84. diyman
  85. zen v4 pcb pict. needed...
  86. My opinion on Pass Labs and Mr. Pass (Nelson) himself
  87. Industrial AlephX High Power version
  88. question on ground/earth diodes
  89. Xformer for Balanced Preamp.
  90. Nelson
  91. Aleph - Can You Give Me A Hand To Decide Wich One To Build?
  92. chassis
  93. Thanks Karen!
  94. Aleph-x
  95. Tori Amos and me...
  96. Zen V4 power supply
  97. Too hot to handle
  98. 2x25 V toroid for aleph 3?
  99. R29 in Aleph4
  100. HI-END AUDIO clones
  101. Aleph60 question regarding resistors and schematic....
  102. Resistors in Aleph 2
  103. Aleph 5 pcb
  104. PASS-YAX2-JH pcb.
  105. Suggestions on Balanced Line Stage - parts?
  106. No Load Voltage on Zen V4 Power Supply
  107. Aleph ono PCB
  108. Your Results After Bettering Your ALeph(s)
  109. MOSFET temperature
  110. Yep, another Aleph5
  111. Aleph mods for quad 57?
  112. which pass amp for ellis audio 1801b's?
  113. Pearl - after 3.5 hours
  114. Smoke and Fuse problem on Zen V4
  115. Circuit boards For Aleph amps
  116. Amp Logo
  117. Help - Zen V4 electrical short?
  118. Maybe these forums need rearranging?
  119. Shorting balanced inputs?
  120. Aleph 30 voltage gain
  121. Power supply inductors in Aleph
  122. How hot is hot?
  123. Ways to a better BOZ?
  124. Dumb Zen V4 Question
  125. TO-3P vs. TO-247 insulators
  126. Amplifiers problem
  127. Aleph3 to cold?
  128. Zen V4 PCB input and output
  129. Zen v.4 meter
  130. Aleph Ono Swichting Problems
  131. My a40 finally completed
  132. Aleph 30 - fuse blowing
  133. Idea for Cheap Variac
  134. mysterious Zen woofer selection
  135. Aleph L output volume control
  136. First DIY-Alpeh Ono Prototype
  137. Power Supply C-R-C
  138. Pearl help - Calling all cars!
  139. best material for chassis
  140. Choice of output mosfets for Pass A75
  141. Zen driving high impedance loads
  142. Relay volume control kit -- shameless plug
  143. Aleph 3
  144. Aleph 5 finally completed
  145. Aleph internal wiring choices?
  146. X-BOSOZ 1st order inductor filter
  147. Help - Mounting transistor to heatsink
  148. Removing a broken tap!
  149. Woodworking advice for A75 case
  150. A temperature meter for my AX
  151. My Zen V4
  152. Help With Aleph
  153. Unbalanced Buffer Linestage
  154. Standby mode for Aleph series...
  155. Looking for opinons about 5 x Alelph-5 for bedroom HT.
  156. R1, R8 in Aleph 30
  157. budget aleph 5
  158. BOZ replacement parts
  159. zen amp
  160. Pass Zen V4 All parts needed 4 sale
  161. Power switch and blue led questions
  162. Relay or not relay ?
  163. The Claw
  164. SOZ DC Offset question.
  165. X250 review
  166. IRFP240 faliure? Help needed!
  167. Pearl input voltage difference
  168. 2.2mH inductor in Aleph3 Power supply
  169. ZEN question inputImpedance Trimpot etc
  170. Short Aleph2 question
  171. Hammond 159ZL as inductors in a Pi-filter?
  172. Found some nice Aleph power supply chokes today
  173. information request for High/Low Pass
  174. Is this resistor inductive?
  175. I ask for schemas of preamplifiers of class A. Help Ms. Nelson
  176. Zen v4 5pF bypass cap questions.
  177. BOAK Power Supply ?
  178. Aleph 5 by DJG
  179. "Output" resistors(quick Q)?
  180. New Ono up and running
  181. ALEPHA 3 Plan to go into operation.
  182. which pre amp?
  183. BOSOZ balanced connectio
  184. 3W instead of 5W in Aleph 5?
  185. solid state relay
  186. 2SA991 substitution for AlephOno
  187. Another Zen v4 layout
  188. Help Needed on the Aleph 1.2 Mechanical Layout
  189. vu meter
  190. aleph2 case
  191. Aleph 2
  192. Aleph 2
  193. Finally some pics of my Zens
  194. My new Aleph is allmost finished !
  195. Question - Heatsink for Aleph3
  196. Aleph 5 bias
  197. Top ten ways to a better Aleph?
  198. Choosing R in CRC
  199. Question for Nelson Pass
  200. Best amp choice for driving NASTY speaker loads
  201. Aleph 5 PS capacitor choices? - Revisited
  202. Zen 4 uses with Magnepan MG 12s
  203. Ono - 2SK170, Which Idss?
  204. Many questions on Zen V4
  205. Aleph 2 layout
  206. BoSoZ is working.......
  207. BoSoZ R14 to GND ??? (unbalanced)
  208. X-Modul
  209. Help Capacitors for Aleph 3
  210. Aleph 5 PS capacitor choices?
  211. Aleph 30 - C11
  212. Solution for eleminating DC offset at Aleph amp
  213. mosfets
  214. Aleph 60 instead of Aleph 2(newbie)
  215. Aleph 5 playing...
  216. transformer for aleph2
  217. Aleph 5 PCB gerber files
  218. Aleph 5 heatsink guesstimate?
  219. my heatsink calcs for Zen v4
  220. balanced x-Preamp
  221. Chassis for low power class A amplifier
  222. Aleph 1 modification
  223. Zen V4 audio quality
  224. Replacing the Mosfets of the Aleph 2
  225. Aleph 5 tower power finished
  226. Zen amp design
  227. Pearl - ps fuse?
  228. Zen V4 Feedback Loop Extension
  229. Balanced line stage connected to pc with soundcard
  230. 1/4" vs rca jacks
  231. Balanced MM phono stage : When Aleph Ono and Xbosoz meet...
  232. Aleph5 sound
  233. Aleph 5
  234. A-40 or another diy amp recommendation please.
  235. Question about the radiator
  236. ZV4 Impedance to Power Supply
  237. Heat dissipation in high temp enviroments
  238. Aleph "L" Stepped attenuator on the input or the output?
  239. A Question for Mr. Pass (and all..)
  240. MSSC with OP-AMPS
  241. Last Advice
  242. My Aleph 5 PCB layout
  243. Help - Transformer for Aleph 3
  244. air cooling
  245. I am slowing learning about the Pass products
  246. Rca Mosfet?
  247. How does Aleph30 sounds ?
  248. Active Absorbers
  249. Resistor in Aleph 5
  250. HELP .... Aleph5

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