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View Full Version : Pass Labs


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  1. Pass X2 Preamp
  2. Mr Pass where are you
  3. IRFP240's on E-Bay????
  4. Some parts instead of..
  5. Best class A for millwatts
  6. Pass amp with 2n3773?
  7. Question to Mr. Pass and the members
  8. BOZ crakling on one channel
  9. nice german article about x350.5
  10. Inductive resistors for source resistors
  11. bosoz rail voltages
  12. Question regarding Pass X series
  13. BOZ & volume control...
  14. New Aleph Mini Parts GB
  15. Left Ch Zenv4 Circuit Board Design
  16. The Pass Labs X2 - service manual
  17. Choosing parts for BOSOZ
  18. What model of Pass lab amp is it?
  19. does this diode good for aleph?
  20. amps finished!
  21. Current Sources
  22. Zen pre-amplifier help
  23. Balanced resistor network?
  24. ZENLITE from MalaySIA
  25. Boards for Pearl ??
  26. Question with X2 Block Diagram
  27. Which Aleph?
  28. Hum.....Huming Aleph 4 ... Help!
  29. Bridged X250
  30. Aleph-X, higher diff pair bias?
  31. variac question
  32. Anyone willing to produce X2-boards ?
  33. Heatsinks for Bosoz?
  34. SOX psu question
  35. Aleph 5 with no (few) gain
  36. The Aleph30 PCB layout
  37. Running BLS on higher voltage
  38. Heatsinks?
  39. X-question
  40. A Zen logo?
  41. Threshold 4000 "polarity"
  42. pass x2 + dcx2496
  43. Pass X250.5 question for Nelson
  44. SOBOZ / APOX Preamp finally finished
  45. Aleph-X prototype with problems
  46. zen transistor
  47. Pass lab amp comparison
  48. BoSoZ PSU Question
  49. Aleph-X oscillating. What to do?
  50. Voltage rating input capacitor C11 in Aleph30
  51. Optimizing bass response in Zen 4
  52. J-low horn question
  53. aleph5 question
  54. BoSoZ
  55. Another BoSoZ finished (finally pfff)
  56. DC offset problem Aleph 5
  57. capasitor
  58. Tom's mini-A
  59. air-core inductors for PSU
  60. Aleph - Zen ???
  61. help on choosing insulator
  62. Caps upgrade for my Zen amp (v1)
  63. PCBs for Zen/Aleph project
  64. Baby Zen amplifier
  65. UK based group buy for heatsinks
  66. ebay irfp240 $1.86
  67. Threshold 800A assistance
  68. increrible aleph5 tiuning!!
  69. New Aleph 30
  70. Fairchild Mosfets for Aleph?
  71. Another heatsink question
  72. Best electrolytic caps for high current power supply.
  73. max. differential voltage in an Aleph P
  74. It works ....
  75. simple GCSS
  76. Best Aleph bi-amp connection
  77. Finding phase of dual primary tranny
  78. Aleph X power supply schematic?
  79. Aleph P1.7 and The Leach Amp?
  80. New Aleph Mini PCB GB
  81. Mosfet A40
  82. Wire or Why err
  83. 6x ladder attenuator on active system
  84. Can I use 2sk170 "V" instead of "BL" in the Pearl?
  85. Nelson Pass diy pre-amps-best??
  86. New PCB for bride of zen
  87. help with zen waveform
  88. The Aleph 3Turbo: HotRodding the A3
  89. power follower
  90. >Nelson Pass, now i understand why DoZ is DEATH of Zen :)
  91. IRPF240 Replacement?
  92. more aleph 2 questions
  93. Eugene Karpov Hybrid
  94. Zen Version 4 PCBīs Europe Group Buy.
  95. Grado output with the Pearl
  96. ZV7 Input Impedance.
  97. Aleph output topology question
  98. A75 Question
  99. Zen V4 - square wave with real load
  100. lateral vs vertical,P vs N
  101. A Siamese twins
  102. Nice Big Heatsinks Cheap!
  103. Ordering 2SK389 transistors for Pearl Phono. Please help, which brand/spec?
  104. Ferrari MOSFETs?
  105. to-3 transistor on aleph-x
  106. Bride of zen PCB
  107. Pass Shoot Out In Salt Lake City
  108. Xa-30, Xa-60 ?
  109. Aleph30 very very hot
  110. Stupid Power Supply Question
  111. Threshold 400A HELP !!
  112. PassLabs gear review
  113. Power supply for Pearl phono
  114. Which pass preamp for unbalanced in/out ?
  115. Help With Zen Amp
  116. compact aleph5 with cpu heatsinks finished
  117. Aleph P1.7 input coupling
  118. Aleph 5 Running (Pic)
  119. MUR860's in BZLS PSU
  120. How many thermistors?
  121. Perfect speaker for SOZ or ZenLite
  122. What's the secret?
  123. Aleph output resistors
  124. A differential output PEARL... ...?
  125. Aleph 3
  126. CLC Question - Heat Dissipation
  127. WLTB: Mark Finnis style Aleph 4 Pcb
  128. aleph 5 oscillating???
  129. Duncan PSU Designer II
  130. Aleph 3 vs Aleph 30
  131. BZLS (aka, BoSoZ?) Blocking Capacitors...what am I missing???
  132. BOSOZ Balanced Attenuator Set-up
  133. Aleph 1.2 hi frequency noise
  134. Adjusting Aleph 3 Gain Level
  135. New Energy Converter ...
  136. BOSOZ PSU question
  137. progress on BOSOZ
  138. Differents Of the "DVR134" & "BOSOZ"
  139. Balance Input For Aleph-X
  140. Another zen question
  141. Yet another heatsink question for Aleph 2s
  142. CC-CCS-X-BZLS: It's alive!
  143. A Su-Sy Ono?
  144. Aleph P1.7 question
  145. LM134/234/334 Current Source
  146. Aleph 5 with other FETs ??? 2SK series
  147. Calculating the AlephX
  148. Pass pre X2 vs X2.5
  149. X- amp, centre-tapped vs floating drive.
  150. input switching design for balanced line stage
  151. CRCRC vs. LCLCLC which is better and why?
  152. dejavu?
  153. New Member_Aleph Project
  154. Aleph 5 and 625VA transformer
  155. Aleph 5 startup
  156. Seeking Zen V7R/T and XBOSOZ advice.
  157. Aleph 4.8
  158. Thermaflo Quotes
  159. Another Aleph-X
  160. Remote mosfet ouput stage
  161. Aleph 5 has arrived
  162. Upgrading Aleph from 3 to 2 gain stage
  163. relay volume attenuator for PASS pre
  164. About givingout gerbers of any Aleph pcb's
  165. Threshold 400A
  166. NEWER Aleph-X calculationsheet AXE-1.2
  167. Aleph X and Quad ESL
  168. First Amplifier - comments my BoZ Pcb please.. :-)
  169. Safe to increase bias on factory Aleph 30's?
  170. Tech help needed Threshold S/300 MkII optical bias
  171. Easier AlephX...Can you diy it ?
  172. problem with my forte ft-1
  173. One Aleph-X working, One to go
  174. What have I built?
  175. a new Bosoz made in France
  176. Half a SoZ?
  177. Aleph 1.2 and a pair of Martin Logans
  178. Threshold T-200 or Pass Labs Amp
  179. Best Alephs for a bi-amp configuration
  180. Where to get plans for Aleph designs? (I'm new)
  181. split heatsinks?
  182. PSU Ringing
  183. Aleph4 vs Aleph5
  184. 1.7p
  185. AAL - another Aleph L
  186. Aleph still Alive, but too much bias
  187. Amp (A30) humming when XLR plugged in
  188. Transistor type BL or GR for XOno ?
  189. Best capacitors for Audio?...
  190. An Aleph5: ALIVE!
  191. How to modify Aleph ONO to line stage preamp
  192. aleph 5 wierd voltage p2pversion
  193. aleph X without PCB
  194. Calrad meter for monitoring bias aleph2
  195. Aleph-X and MMGs
  196. Panasonic FC in Aleph P
  197. irf9610 matching and manufactures
  198. Aleph-X power supply First tests
  199. aleph 5 help...please
  200. The (small) Aleph Family
  201. A30....I still have a ways to go !!!
  202. Did Par-Metal bite the dust?
  203. Pass's Patents.
  204. Nice Stereophile article on Nelson and First Watt
  205. Mini A Power Supply
  206. Alelph 5 troubleshooting question
  207. Thermal compensation
  208. Zen :bulb: lite :bulb: Power supply
  209. Substitute FET IRF610 for balanced Zen line Stage
  210. Cleaning Aleph X Boards
  211. Forte 1A Help Needed
  212. Aleph-X : adjustment details
  213. Making Alephs faster and more dynamic!
  214. Aleph P1.7 first pictures
  215. Anyone building a pearl phono soon?
  216. IRC 0.1% metal films in a Aleph 1.7 preamp?
  217. Fet Follower Regulator On Resistance?
  218. Not really a DIY question. Popping when switching inputs.
  219. which aleph to use ???
  220. The HotRod Aleph Circuit Board
  221. Driving Pass Amps direct without pre-amp? With a Wadia, experience anyone?
  222. To BOSOZ or not to BOSOZ... please comment.
  223. Aleph 3 transformer question
  224. The true meaning of "Aleph"
  225. Wooden chassis
  226. Bi-amp with Aleph P bal. and unbal. outputs
  227. Searching for Roddyama
  228. Seasons Greetings
  229. How to add moist to Boz ?
  230. Aleph 2 - thermal connections
  231. Aleph 2s And The Grounded Grid
  232. Curent Vs Voltage amplification in Alephs
  233. ALEPH 2 PCB (ExpressPCB Format)
  234. Idiotīs guide to building Pass amps?
  235. Ribbon cable in the X amps?
  236. Aleph X CRC Power Supply for 60 W amp
  237. input and output Pots for Aleph 1.7?
  238. BOSOZ--variable impedance volume attenuator
  239. NP address spoofed
  240. A cross between A5 and A3
  241. Mosfet Citation 12 build questions
  242. Free Ces Tickets
  243. Aleph -
  244. MOSFET Pool for Matching Qs (Aleph X or Other)?
  245. Any old alephs
  246. Threshold SA/2 SA/3 Soderburg site?
  247. Look what I found in the trashbin!
  248. Some food for thoughts: UniversalX
  249. CORRECT TEMP MEASUREMENT for ZENV4?
  250. aleph 2 boards group buy.

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