400A->Aleph->X150 Is this the right way to go?

[PKI]

Hello everyone,
I have and love my Thresholds: 400A and SL-10 pre, hoverer, I just can't live without future plan. So my question is: What should be a next future upgrade from 400A? Should it be a S200/300 or save some money and buy Aleph or x150? My budget is tight so I won't be able to afford x.5 series 🙁. How x150s compare to Aleph and why Mr. Pass moved from class A to symmetric p-p x series, is it improvement?

I would appreciate any comments and will be glad to give you some more input parameters if needed. Thanks!

 

[mikojat]

I bet you thought that getting good Class A performance without a feedback loop was exotic, difficult, and expensive.
Not if you Do it Yourself.

 

[Zen Mod]

OK , besides DIY , have you any possibility to listen possible candidates ?

preferably in your environment ....

 

[PKI]

OK , besides DIY , have you any possibility to listen possible candidates ?

preferably in your environment ....

I would say NO, but I will try! How about Threshold S-series S200/300 will it be an upgrade from 400A(I've recapped it)?

 

[Zen Mod]

presuming that both are capable to drive your speakers in your room with your ears ...... dunno



you're asking too much in forum - at least for difference between Treshold ; for my knowledge they're still on same side of coin

are PL amps on other side of coin - enough - to justify price difference - I would say yes , but only you can measure value of that

sorry .... ;(

 

[Zen Mod]

scenario - keep your 400 for good , and DIY (slowly , maximizing enjoying ) your own Aleph?

 

[PKI]

Maybe thats a good idea, what Aleph you can recommend? I have infinity kappa 8.1 speakers now, so they benefits from more power and high current. Thanks!

 

[Zen Mod]

with 6 Ohms and 89db/2V83 you need either a biiig Aleph , or smaller X amp

maybe Aleph 5 as smallest you can use

FYI - Aleph 5 is 60W/8R/ch
Aleph 4 is 100W/8R/ch

having no experience with your Infinity sps , I can't tell more

 

[PKI]

Is there any link on Aleph family? I would like to read what are their specs. Thanks you!

 

[jacco vermeulen]

with 6 Ohms and 89db/2V83 you need a biiig

Aleph 1.0

 

[Zen Mod]

dunno

google ( maybe directed on Stereophile.com)

Aleph 0
0s
1
1.2
2
3
4
5
30
60
Volksamp Aleph series 30 and 60 , sort of FW predecessors

find enclosed rough list with basic info

edit:

now I see that Jaccolina is here

-he knows everything .

 

[PKI]

Ok I am thinking of Aleph 4. Is it Mr. Pass's design or just some DIY mods of original Alephs?

 

[Zen Mod]

all those were Pass Labs products , later given by Mighty Papa to DIY community , for joy and pleasure

 

[Nelson Pass]

why Mr. Pass moved from class A to symmetric p-p x series?

Abandon Class A? Hahahahahahahaaaaa........

 

[PKI]

Mr. Pass, it was not a statement, but question! 🙂 I read that x series is AB class but Aleph was class A. Maybe I am wrong, please correct me. What do you think if biamp Aleph 4(mid/top) with 400A(bottom)?

 

[jacco vermeulen]

With minor surgery and terminals added, could even go tri-amped.

http://www.infinity-classics.de/technik/manuals/Kappa_8.1_technical_sheet.pdf

 

[PKI]

Ok, I am really got excited on DIY Aleph 4! As I mentioned before it is not a best time financially for me, would you be willing to help me just estimate how much this project can cost? (or these types of project). Thanks!

 

[PKI]

Oh, btw, I have a question to Mr. Pass or maybe someone else can answer:
I can hold my hand on a heatsink of my 400A for 3 seconds when it is warmed up, is ok or it is too hot for this amp and I need to adjust the bias? (do not want to fry outputs)

 

[Zen Mod]

here we go again ........

I should put that bloody pic as my avatar

 

[Zen Mod]

I forgot - 50 is OK, 55 is too much - considering that's winter now

search for Papa's Koan Babysitter