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- Speaker Project for Firstwatt and BA amplifiers
- the class A mono ampli...
- Which ampli pass for loudspeaker proac responce 3.5?
- Which ampli pass for loudspeaker proac responce 3.5?
- Bride of Zen as a preamp for F2?
- Threshold S300 offset issues
- B1 Active Crosover
- Any news on B4?
- The impact of the cascoded transistor in an Zenamp?
- Leaving Class A? Martin Colloms vs Nelson Pass
- Now I know why everybody is going to Class D - When will Nelson be forced?
- pass zen4 pcb
- Preamp with more Aleph than Zen-style
- B1 Active Crossover
- 2SK170 limit
- Xp 20 vs x0.2
- I need Help with my F5....
- F4: Schematic and Feedback Circuit
- Ixys depleationmode fet susy one stage balanced pushpull Zenitronamp.
- Aleph-x trouble
- A Bride for a Beast?
- pass labs basis allfet amp.
- pass X 1000.5 or Xa 200.5
- F2 and DCB1 parts selection - please advice!
- F5 Listening Impressions & Discussion
- Threshold SA/1 standard fuses replacement and use of Variac
- Crazy Clipping Behavior Quasi Complementary MOSFET Citation 12 TAA Book
- TLE2426 in B1 instead of resistors
- good day i'm a new forumer!!! info for XP20
- 5 watt class a
- Preamp in F5 manual
- "Current" Feedback and SuSy
- B1 for attenuating 4 outputs....help
- Forte model 40 phono stage fault
- Inductor Circlotron
- B1 Preamp Grounding Question
- Which components to use for pass aleph
- F5 hums only after my iTouch is connected
- The simplified schematic of J2 what I suppose to be.
- F5: How much smoke did I let out?
- aleph bias tips
- ZEN include active crossover without additional OP AMP for ultimate sounding PHL1230
- IRF540 or IRF3710............................
- B1 builders thread
- A question for Mr Pass on mosfet distortion
- Currently used rectifiers in XA series (BYW99W-200 substitute)
- Newbie Class-A Build
- trademark laws
- Newbie needs help.I want2build a Pass amp!
- Aleph J Front End for Pre
- J2 and update of F2 (pelase delete)
- Honking Sound?
- Any reason why Pass is not Dual Mono amp???
- Explosion in Forte 1A...
- Parts give away
- Bride of Zen with a small NFB
- Zen headamp. PCB, my ver.
- 2SJ28 Vfet SE Amplifier
- help me about NP D-1
- Tubes to transistors, is it worthwhile
- Circlotron Meditations
- Aleph-X: strange signals ....
- Aleph X building
- IXYS depletion MOSFETs: What are they good for?
- U406
- Forte Audio 4A
- Temperature of resistors in CCRC PSU
- What Pass designs have you built?
- Next Zen designs
- aleph power questions
- Fate of Class A
- "NP Series" ... which to build if:
- Threshold 800A and other old models: Mospec 2N5876/2N5878 or ON MJ21193/MJ21194 ?
- Planning to build an Aleph 5 dual mono amps - advice
- Pass "DeLite" Amp from BAF
- B1 Power Supply Options
- First guitar amp
- Almost new Linear Fet
- Two B1 and a crossover
- OK to run an RC filter on the output of my F3?
- Burning Amp 09
- Better MC Pre-Pre solution for low internal coil resistance- not only for Pearl phono
- Cascode topology for Power Output like STASIS - no longer used in today's amps; why?
- B1 pcb's are ordered and...
- Potentiometer value for Zen v4
- The Sweet Spot
- APOX volume-input for Aleph P1.7 question
- heatsink for aleph 4
- B1 layout question
- B1 Buffer Preamp - FET choice?
- XP10/20 Coupling Caps
- Choosing speakers for Zen v4
- F5 wiring
- Semisouth JFET's: What are they good for?
- PS Audio 4.6: a NP's project?
- Hafler P3000: crackling in right channel
- First Watt F1 - compensation network for fostex 126e
- super symetry on aleph ?
- Aleph X PCBs
- Threshold FET-10/hl power connector
- Aleph X2 and HD650
- B&W 800d......Pass XA200.5 or X600.5?
- aleph 4 questions
- VoltageDAC with B1 output buffer
- F5 Parts recommendations
- Pass Tutorial Request
- Vintage V-FETs in class-A amplifier with complementary push-pull output
- SIMPLE Aleph Pre-amp,
- Threshold CAS 1
- All I want for Xmas...
- SR1 speaker
- Long time Pass fan
- irfp240pbf or irf9240pbf for aleph 4
- Appropriate Preamp for Aleph 2 question
- F5 X chromosome mates with SET
- Is a mini-Aleph using BF862 possible?
- Help with B1 PSU
- SA4/e
- FirstWatt J2
- Aleph4 gate proection zener failure
- Anybody tried the F3 with AKG K1000 headphones?
- Amazing Circlotron with Power JFets
- convert aleph 5 to 2
- equivalent mosfet for aleph 4
- X150.5 Queries
- What input voltage produces maximum output with the F5?
- Output capacitor for Zen v4
- Universal chassis
- minimum load impedance for DIY opamp
- Well, That was stupid of me....
- threshold sl-10
- ZV7-T meets ZV8
- F5 enough for floorstanders?
- Thanks for the F5!
- Arctic Silver Epoxy for F5 mosfets?
- modify aleph 1.2
- XVR1 Amplifier?? Advice please Nelson
- A75 to BA2?
- F5 hum
- Single output pair class A design?
- F3 on ebay at $750GBP
- Good Gnews and Bad Gnews w/ my F5 - help?
- Balanced Stereo Pot for Balanced B1?
- Bipolar Zen4 ?
- Burning Amplifier BA-2
- Finished my DIY F2 last night
- Mini Aleph Problem
- 2SJ109-BL's
- Stereo Aleph as mono (paralleled!)
- F5 Help Needed
- Inspiration for future ZEN Versions - basic description of Italians 400.000 $ Amp
- World's expensivest Audio Power Amplifiers - $100.000 - $600.000
- Which F?
- Aleph Heatsinks (My Last Noob Question of the Day)
- Beast with a Thousand JFETs
- Noob Question about Mini-A (I swear I searched)
- PC-like cooling?
- Another way to insulate transistors from heatsinks
- Neatness of wires?
- Tube front end for F3 amplifier
- Heat Sink tap/thread size
- Burning amp
- Bench testing a SA/4e
- Thermistor Location for F5 power supply
- Building a better F2?
- bypass output capacitor
- A relatively big modular poweramp...
- Resistor question for F1
- FS: CDM9 tray loader with new gear
- SiC JFETS
- Aleph P & Aleph 5
- Question about proper orientation of Q5,Q6 F5 driver board
- cviller f5 board Q5, Q6 orientation?
- DIY Aleph 5 vs real Aleph 5
- Is this overkill for an F1?
- Pass F5 Help Needed
- F5 - Antek 4218 Wiring Question
- Car Audio Amps by Nelson Pass
- Aleph 2's Heat
- B1 jfet help .
- Class A push-pull
- Fqa12p20 Fqa19n20c Discontinuation
- Big torrid's, with wrong voltages.
- Acceptable Ripple Current for Aleph 2
- F* amp VS Single Ended DHT tube amp
- First version Aleph 0 (Null, ZERO, O, Os, 0s) versus later Aleph versions
- First version Aleph 0 (Null, ZERO, O, Os, 0s) versus later Aleph versions
- Toroidal transformer for F1
- silly question: diodes
- Papa, Watt's next?
- Aleph 2 Built But Some Questions Remaining
- Which first watt amp for Zu Druid mk4?
- What speakers are U using for AX-100/AXJ100
- Pass X250+ Wadia
- First Watt F1 question
- Repair question re: threshold 400a
- Nelson Pass, Thanks for writing!
- Reading Leaving Class A . . .
- Aleph (Single Ended) + Larvadin (no Memory Distortion) = Ultimate Aleph?
- My DIY Aleph 5 is Alive!!
- Threshold S/500 bias set up anyone?
- Aleph 5 High DC Offset
- What is it about Nelson's aleph amps...
- Nice Heatsinks for Aleph
- Checking for interest in Conrad HS GB (USA ONLY)
- mosfet gate voltage question
- schematic variation and sim results of Pass "X" series US pat 5376899
- Is B4 still on the horizon?
- B1 buffer as integrated amp
- diy XA30.5
- XP-10 Cap Rolling
- F3 volumn problem
- Aleph 4 - Simulation Results from "Circuitmaker"
- Long speaker cables
- Newbie question on suitability of A40 with Shackman electrostatic HF panels
- Nelson Pass and N.E.W. Amps?
- Pass Shunt Circuit
- F2
- F1 or F2 with MIT speaker cables?
- Aleph 2 PSU Question
- Aleph j Service Manual.
- I need to battery power F4, F5's... Ideas?
- Adcom GFA-555 Feedback DC-Blocking Cap?
- SR-1, Bravissimo Nelson
- Avel 20v 1000va. Anyone interested?
- mini aleph transformer question
- Variac size to buy
- Santa UPS! Pass Goodies
- Guitar Pre amp humming problem
- Guitar Pre amp humming problem
- ALEPH 2 Service Manual
- An F1 clone comes alive. Again.
- j.fet front aleph 5
- Stasis Voltage section
- F5 Single Primary Transformer
- Aleph in Car~
- BF862 Preamp
- help with b1 + gainclone build
- Schematics Threshold Series I or II
- Desparately seeking F3 PCB's!!!
- Aleph2 or Aleph-X for Martin Logan Request?
- Which amp for speakers with a Fountek Neo Pro 5i and 12 inch woofer
- Many question about Threshold S/** supply rails
- Looking for a Calculating Tool like Axe-1 but for Aleph 2
- pearl PCB's
- buffer and impedance matching
- B1 pre earth safety question (newbie)
- Resisters
- F5 bias question
- Best amplifier for "hard" acoustic system