Discrete opamp

diwily

Plan to order Dexa/NewClassD discrete opamps to upgrade DAC for a friend. If any C-hing would like to join, I can include in my order. Postage will be shared. If order reaches 10 pcs, can ask for a discount.
Pls PM with your mobile phone nbr for contact if interested.

Link : http://www.newclassd.com/index.php?page=55
"http://www.newclassd.com/index.php?page=55" Need top copy & paste without the quotation marks.

Price for single is USD40/pc before any discount, add share of postage. We have total order of 6 pcs so far.
Price for dual is almost USD73/pc.

diwily

Update : Total orders 8 pcs now.

bigjohnx

How much for shipping fee estimate?

diwily

bigjohnx 發表於 2013-6-17 16:54
How much for shipping fee estimate?

Total shipping charge last time was about USD30 from Denmark to HK. Should be same charge for a few pcs or 10 pcs, still in the minimum weight range.

bus109

Compare to Burson Audio HD Opamp 101 which one sound more musical ?

diwily

Doug Schroeder of Dogogo,com wrote in his article of April 2012 that "In general the Bursons are more “meaty” and the NewClassD more “crystalline”, but to go any further than that in terms of describing their innate sound characteristics in comparison to each other would be tenuous."
Suggest you read the article in Link below :
http://dagogo.com/audio-blast-ea ... ete-opamp-rolling/3

Further info for Burson & NewClassD :
http://www.newclassd.com/index.php?page=55
http://www.bursonaudio.com/burson_opamp.htm

diwily

Have not used Burson but my experience [used in Eastern Electric MiniMax DAC Plus] is that :

(1) NewclssD dual + single > (2) OPA627BP x2 + OPA627BM [metal can] > (3) stock NE5532 + NE5534.

(1) & (2) are much better than (3). Difference between (1) & (2) is less.

BTW,  Specifications of NCD.
Voltage Range: +/- 5V to +/- 25V.
Supply current: typ. 7 mA per amplifier.
Dimensions: (Footprint on PCB) L:24mm W:13mm H: 28mm.

diwily

Update : Total order is 16 pcs now.
Since I have to pay vendor via PayPal to order but buyers will pay me only when I deliver the opamps, I have to advance payment from my pocket. I will just order now 16 pcs and no more new orders will be accepted.

diwily

Hi minidetective & spotato28,

The opamps ordered for you have arrived. Pls check PM & call me to arrange delivery.

obee

diwily 發表於 2013-6-24 15:40
Hi minidetective & spotato28,

The opamps ordered for you have arrived. Pls check PM & call me to ar ...

咁快就到
又有玩具玩

minidetective

obee 發表於 2013-6-24 17:12
咁快就到
又有玩具玩

obee兄, 你都訂咗?

obee

minidetective 發表於 2013-6-24 17:38
obee兄, 你都訂咗?

無, 我的DAC不能摩, 我只看你幾天前下ORDER,今天便有, 好快哦.

lovefancy

想請教各位c-hing, newclassD上面的電阻, 英文是叫咩呀, 例如碳膜電阻是carbon resistor

diwily

lovefancy 發表於 2013-6-27 10:17
想請教各位c-hing, newclassD上面的電阻, 英文是叫咩呀, 例如碳膜電阻是carbon resistor ...

NewClassD opamp 上所有零件都是貼片形式, 電阻的物料是炭或金屬膜或其他就不得而知了.

diwily

貼片零件英文即Surface Mounted Device [SMD]

obee

diwily 發表於 2013-6-27 10:47
NewClassD opamp 上所有零件都是貼片形式, 電阻的物料是炭或金屬膜或其他就不得而知了. ...

不會是碳膜吧... 不可能的.

lovefancy

newclassD應該不是用碳膜, 我見現在很多廠都喜歡用這種細小電阻代替傳統大大粒, 有幾個顏色環的電阻, 想知道這些細小電阻係叫乜!

obee

lovefancy 發表於 2013-6-27 11:05
newclassD應該不是用碳膜, 我見現在很多廠都喜歡用這種細小電阻代替傳統大大粒, 有幾個顏色環的電阻, 想知 ...

Surface mount resistor.

lovefancy

obee 發表於 2013-6-27 11:12
Surface mount resistor.

icic, thx...........