Pearl Two - Page 11

acidbrain · 21st February 2010, 10:40 AM

- we should spam Wayne

Wait for the Pearl II, maybe you won't need a stepup for low-MC's.
The Pearl and the 640P are both winners in their class, but the Pearl is way better. (sub $1000 class if you want to buy a similair finished product

)
Another higher class would be the ONO.
I hope Wayne constructs a dedicated supply for the Pearl II like he did for the Pearl I, otherwise I would still go for the Pearl I.

d to the g · 21st February 2010, 10:38 PM

Quote:

Originally Posted by webby

T
Can you describe the sound quality of the pearl, is this a high end design?

The pearl is pretty much the MM section of the ONO. The ONO is a serious, highend, design. A simple rule of thumb is that a hifi product costs about 5x the parts cost. I see people spend from $250 to 600 on parts for their pearl.

h_a · 23rd February 2010, 01:13 PM

The pearl is very different to the Ono

The pearl is mostly a series stack of two Ono MC-front ends (4x paralleled K170, 2x paralleled jfets in K389) without negative feedback. The Ono has the same front end, goes into a differential as 2nd stage and uses a p-channel mosfet as inverter to drive the source followers. Oh and it uses a little feedback back to the differential.

Quote:

about 5x the parts cost.

John Curl keeps repeating that an amp costs only about 1/4 of its retail price to produce and about half of that (1/8) is actual parts cost (other 1/8 is labour). Anyway, both numbers are depressing

Have fun, Hannes

reinhard · 25th February 2010, 07:53 AM

We are 2 and a half month away from starting this thread. Where is the article and where are the boards?

Wayne, please answer,

LG,
Reinhard

woodturner-fran · 25th February 2010, 12:01 PM

well, he obviously hasn't got around to it yet. The design has got to be reasonably low on his list of priorities (have to pay the bills!) so whenever it comes along, thats when you'll get it.

Fran

jacco vermeulen · 25th February 2010, 12:07 PM

Some folks have a problem shaking their military ways.

(who needs Harry-H with me around)

chrismercurio · 25th February 2010, 03:31 PM

I bought the Audio Sector one in the meantime. Living without records is too hard.

Rodeodave · 25th February 2010, 03:33 PM

Quote:

Originally Posted by woodturner-fran

well, he obviously hasn't got around to it yet. The design has got to be reasonably low on his list of priorities (have to pay the bills!) so whenever it comes along, thats when you'll get it.

Fran

Exactly. The Pearl Two is a precious gift to the DIY-community and we should be patient and thankful. This is a public forum and no one owes anyone an answer.

Geduld (ist eine Tugend)

Rodeodave · 25th February 2010, 03:35 PM

Quote:

Originally Posted by chrismercurio

I bought the Audio Sector one in the meantime. Living without records is too hard.

What Audio Sector one?

chrismercurio · 25th February 2010, 03:45 PM

My phono stage tanked a few months ago and while I am (still) waiting on this one, I bought this one:

The Phono Stage

I will report back on the sound in that forum, but am using a slightly different BOM and power supply.

21st February 2010, 10:40 AM	#101
acidbrain diyAudio Member Join Date: May 2008	- we should spam Wayne Wait for the Pearl II, maybe you won't need a stepup for low-MC's. The Pearl and the 640P are both winners in their class, but the Pearl is way better. (sub $1000 class if you want to buy a similair finished product) Another higher class would be the ONO. I hope Wayne constructs a dedicated supply for the Pearl II like he did for the Pearl I, otherwise I would still go for the Pearl I.

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25th February 2010, 07:53 AM	#104
reinhard diyAudio Member Join Date: Dec 2000 Location: Germany	We are 2 and a half month away from starting this thread. Where is the article and where are the boards? Wayne, please answer, LG, Reinhard

25th February 2010, 12:01 PM	#105
woodturner-fran diyAudio Member Join Date: Jan 2006 Location: Ireland	well, he obviously hasn't got around to it yet. The design has got to be reasonably low on his list of priorities (have to pay the bills!) so whenever it comes along, thats when you'll get it. Fran

25th February 2010, 03:31 PM	#107
chrismercurio diyAudio Member Join Date: Aug 2006 Location: Silicon Valley	I bought the Audio Sector one in the meantime. Living without records is too hard.

25th February 2010, 03:45 PM	#110
chrismercurio diyAudio Member Join Date: Aug 2006 Location: Silicon Valley	My phono stage tanked a few months ago and while I am (still) waiting on this one, I bought this one: The Phono Stage I will report back on the sound in that forum, but am using a slightly different BOM and power supply.

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