"Reference to A2" what is this product?

Alexontherocks · 1st April 2012, 05:23 PM

I was just looking on the internet for class A amplifier boards/amps (out of curiosity from the thread on the chinese clones) ad found this site and product

100W Mosfet Pure Class A SE amplifier PCB stereo pair ! | eBay

I am in no way stating ot implying this seller has slavish imitations of NP's designs but I was curious. In the product description wer have a "reference to A2" is this intended to be a reference to the Aleph series?

Can anyone elaborate on what this product is? Is it a fair application of NP's designs or is it totally unrelated?

Thanks
Alex

Zen Mod · 1st April 2012, 05:29 PM

Aleph

AudioSan · 1st April 2012, 05:37 PM

yes it is based on aleph2.
and useless boards if you ask me

and no. i do not belive he has nelsons blessing.

Alexontherocks · 1st April 2012, 05:40 PM

why are they useless?

There might a problem then if the quality is that bad but I guess they got away with the century old "reference to" formula to avoid liability.

Zen Mod · 1st April 2012, 05:46 PM

buy them or not

your choice

I would not , strictly from respect

AudioSan · 1st April 2012, 05:47 PM

try to dissepate 300W from one heatsink, and look how big i gets

there is a reason for aleph2 being monoblocks

Alexontherocks · 1st April 2012, 05:51 PM

@Zen mod I do not want to buy them. Trust me I have my hands full with one of the most challenging projects yet:

High voltage driver for AB2 operation GU81m tubes

2KW from tubes...kicks an aleph 1.2 in the behind in terms of construction requirements. 1000w only for filaments

I was just trying to understand what is happening on the web with pass products.

I understand this may have been a wrong (poor rather) choice of topic. Please cancel the thread.

Best
Alex

@AudioSan I understand...it is not an inherent flaw in the design but rather a poor choice of layout.

Zen Mod · 06:05 PM

no need for thread canceling ....

edit: did I told you that you're nutz ?

AB2 with GU81 .........

Alexontherocks · 1st April 2012, 06:05 PM

BTW I think you should have a sticky in this section about exactly what is the situation in regards to Aleph products, their clones (authorised manufacturers), advice and/or caveats you wish users to know about.

A guide to the world of Pass clones so to speak.

Just a suggestion..

AudioSan · 1st April 2012, 06:17 PM

Quote:

Originally Posted by Alexontherocks

@Zen mod I do not want to buy them. Trust me I have my hands full with one of the most challenging projects yet:

High voltage driver for AB2 operation GU81m tubes

2KW from tubes...kicks an aleph 1.2 in the behind in terms of construction requirements. 1000w only for filaments

I was just trying to understand what is happening on the web with pass products.

I understand this may have been a wrong (poor rather) choice of topic. Please cancel the thread.

Best
Alex

@AudioSan I understand...it is not an inherent flaw in the design but rather a poor choice of layout.

yes. i was thinking of the layout

designflaws it don't know. and will not find out

regarding aleph PCB's. i only know of KK-PCB design. he have alot of aleph boards. and chipamp.com

1st April 2012, 05:23 PM	#1
Alexontherocks Account disabled at member's request Join Date: Jul 2009	"Reference to A2" what is this product? I was just looking on the internet for class A amplifier boards/amps (out of curiosity from the thread on the chinese clones) ad found this site and product 100W Mosfet Pure Class A SE amplifier PCB stereo pair ! \| eBay I am in no way stating ot implying this seller has slavish imitations of NP's designs but I was curious. In the product description wer have a "reference to A2" is this intended to be a reference to the Aleph series? Can anyone elaborate on what this product is? Is it a fair application of NP's designs or is it totally unrelated? Thanks Alex

1st April 2012, 05:29 PM	#2
Zen Mod diyAudio Member Join Date: Jan 2003 Location: ancient Batsch , behind Iron Curtain	Aleph __________________ my Papa is smarter than your Nelson ! tnx to clean thread ; Cook Book ; PSM LS Cook Book ; Baby Diyaudio FORUM ; Mighty ZM's Bloggg;I'm dumb

1st April 2012, 05:37 PM	#3
AudioSan diyAudio Member Join Date: Feb 2009 Location: Trondheim	yes it is based on aleph2. and useless boards if you ask me and no. i do not belive he has nelsons blessing. __________________ aleph P1.7 pre. F5 power amp. CDpro2(need DAC). Vivaldi8 speakers

1st April 2012, 05:46 PM	#5
Zen Mod diyAudio Member Join Date: Jan 2003 Location: ancient Batsch , behind Iron Curtain	buy them or not your choice I would not , strictly from respect __________________ my Papa is smarter than your Nelson ! tnx to clean thread ; Cook Book ; PSM LS Cook Book ; Baby Diyaudio FORUM ; Mighty ZM's Bloggg;I'm dumb

1st April 2012, 05:47 PM	#6
AudioSan diyAudio Member Join Date: Feb 2009 Location: Trondheim	try to dissepate 300W from one heatsink, and look how big i gets there is a reason for aleph2 being monoblocks __________________ aleph P1.7 pre. F5 power amp. CDpro2(need DAC). Vivaldi8 speakers


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1st April 2012, 05:40 PM	#4
Alexontherocks Account disabled at member's request Join Date: Jul 2009	why are they useless? There might a problem then if the quality is that bad but I guess they got away with the century old "reference to" formula to avoid liability.

1st April 2012, 05:51 PM	#7
Alexontherocks Account disabled at member's request Join Date: Jul 2009	@Zen mod I do not want to buy them. Trust me I have my hands full with one of the most challenging projects yet: High voltage driver for AB2 operation GU81m tubes 2KW from tubes...kicks an aleph 1.2 in the behind in terms of construction requirements. 1000w only for filaments I was just trying to understand what is happening on the web with pass products. I understand this may have been a wrong (poor rather) choice of topic. Please cancel the thread. Best Alex @AudioSan I understand...it is not an inherent flaw in the design but rather a poor choice of layout.

1st April 2012, 06:02 PM	#8
Zen Mod diyAudio Member Join Date: Jan 2003 Location: ancient Batsch , behind Iron Curtain	no need for thread canceling .... edit: did I told you that you're nutz ? AB2 with GU81 ......... __________________ my Papa is smarter than your Nelson ! tnx to clean thread ; Cook Book ; PSM LS Cook Book ; Baby Diyaudio FORUM ; Mighty ZM's Bloggg;I'm dumb Last edited by Zen Mod; 1st April 2012 at 06:05 PM.

1st April 2012, 06:05 PM	#9
Alexontherocks Account disabled at member's request Join Date: Jul 2009	BTW I think you should have a sticky in this section about exactly what is the situation in regards to Aleph products, their clones (authorised manufacturers), advice and/or caveats you wish users to know about. A guide to the world of Pass clones so to speak. Just a suggestion..

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