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Author Topic: Burr Brown OPA627AP  (Read 2823 times)

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Offline calvinhpk

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Burr Brown OPA627AP
« on: February 14, 2007, 10:00:25 AM »
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Offline mnkh27

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Re: Burr Brown OPA627AP
« Reply #1 on: February 14, 2007, 10:49:44 AM »
Looks like ant marching ... hehehe!
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Offline iceggy

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Re: Burr Brown OPA627AP
« Reply #2 on: February 14, 2007, 10:56:55 AM »
what can we do this this chip???
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Offline calvinhpk

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Re: Burr Brown OPA627AP
« Reply #3 on: February 14, 2007, 11:01:40 AM »
you can use to mod the opamps in your amplifier.

all opamps have different character

http://tangentsoft.net/audio/opamps.html
http://www.diyaudio.com/forums/showthread/t-53804.html
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Offline netken

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Re: Burr Brown OPA627AP
« Reply #4 on: February 14, 2007, 11:27:59 AM »
warranty void ...
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Offline built

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Re: Burr Brown OPA627AP
« Reply #5 on: February 14, 2007, 11:33:11 AM »
use old amp lo...
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built-2-last
Enjoy the music!
music is the only sensual pleasure without vice... - octave

Offline mnkh27

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Re: Burr Brown OPA627AP
« Reply #6 on: February 14, 2007, 12:07:17 PM »
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Offline calvinhpk

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Re: Burr Brown OPA627AP
« Reply #7 on: February 14, 2007, 04:25:50 PM »
mod my old genesis sa50
kakakka
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Offline netken

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Re: Burr Brown OPA627AP
« Reply #8 on: February 14, 2007, 08:32:34 PM »
Quote from: calvinhpk on February 14, 2007, 04:25:50 PM
mod my old genesis sa50
kakakka

kaput liao .. kekeke...  /77
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Offline louis

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Re: Burr Brown OPA627AP
« Reply #9 on: February 14, 2007, 11:57:46 PM »
then mod new amp lor
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beware!!!
the more u learn, the more u spend

Offline izso

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Re: Burr Brown OPA627AP
« Reply #10 on: February 15, 2007, 04:27:19 AM »
For a complete newbie like me, how to identify the opamps in my amp?
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Offline calvinhpk

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Re: Burr Brown OPA627AP
« Reply #11 on: February 15, 2007, 09:29:25 AM »
Quote from: izso on February 15, 2007, 04:27:19 AM
For a complete newbie like me, how to identify the opamps in my amp?
open up ur amp...and look for the ICs looks like the picture near the RCA jacks
brand or numbers u'll always see is 072 or NE5532 from Philips or BB..... maybe others also
they're usually 8 legged, 4 at each side
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Offline bLeh

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Re: Burr Brown OPA627AP
« Reply #12 on: February 15, 2007, 10:06:05 AM »
waiting anxiously to listen to this mod!!  /168
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Offline izso

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Re: Burr Brown OPA627AP
« Reply #13 on: February 15, 2007, 02:53:38 PM »
Quote from: calvinhpk on February 15, 2007, 09:29:25 AM
open up ur amp...and look for the ICs looks like the picture near the RCA jacks
brand or numbers u'll always see is 072 or NE5532 from Philips or BB..... maybe others also
they're usually 8 legged, 4 at each side

Hmm.. must go dig out that cap ayam and see. I wonder how much an improvement a cap ayam will have?
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Offline Zenn

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Re: Burr Brown OPA627AP
« Reply #14 on: February 15, 2007, 04:31:40 PM »
if cap ayam then lot of other components inside u have to modify, hehe....
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Offline mnkh27

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Re: Burr Brown OPA627AP
« Reply #15 on: February 15, 2007, 04:36:26 PM »
Quote from: izso on February 15, 2007, 02:53:38 PM
Hmm.. must go dig out that cap ayam and see. I wonder how much an improvement a cap ayam will have?

The mods may cost more than you amp. hahaha!
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Offline calvinhpk

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Re: Burr Brown OPA627AP
« Reply #16 on: February 15, 2007, 04:39:05 PM »
yup..... this ops627ap cost you ard RM80 from RS Electronics per pcs, and it's a single type opamp
most amp uses minimum 2pcs of dual op amp, means u'll need 4pcs of opa627
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Offline louis

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Re: Burr Brown OPA627AP
« Reply #17 on: February 15, 2007, 06:25:20 PM »
calvin u have 10 .. rich mannnnnnnnnnnnnnn /92 /92
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beware!!!
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Offline calvinhpk

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Re: Burr Brown OPA627AP
« Reply #18 on: February 15, 2007, 11:29:10 PM »
9pcs only
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Offline izso

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Re: Burr Brown OPA627AP
« Reply #19 on: February 16, 2007, 03:49:09 AM »
*counts fingers*

Oh.. then these ICs cost more than the amp! Crap!
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Offline nghooipeng

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Re: Burr Brown OPA627AP
« Reply #20 on: March 14, 2007, 12:45:26 PM »
Currently my HU come with front channel using OPA2134 and rear channel using OPA627. Tried to compare both, OPA2134 is more on more dynamics, high extention refine. While OPA627 is more is rounding, smooth, and warm.
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HU: Abyss A-7 with Kimber Kable V-21
Preamp: Zelos Audio TUBE-A with Telefunken 12AU7
XO: Zelos Audio Z-7 with Burr-Brown OPA627
Drivers: Abyss G-1 Tweeter & Scanspeak 18W4831G00 Mid & JL Audio 12W7 Sub
Amps: Zelos Audio Verdi 4CH with Audioquest Type-4 & Abyss Power1.5K
Interconnects: DIY Pure Silver with WBT-0147 & Kimber Kable Silver Streak with WBT-0110 Cu & Audioquest Sub-3

Offline calvinhpk

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Re: Burr Brown OPA627AP
« Reply #21 on: March 14, 2007, 04:42:42 PM »
Quote from: nghooipeng on March 14, 2007, 12:45:26 PM
Currently my HU come with front channel using OPA2134 and rear channel using OPA627. Tried to compare both, OPA2134 is more on more dynamics, high extention refine. While OPA627 is more is rounding, smooth, and warm.
yes....that's what i've read
OPA2604 is more dynamic and better extention compare 2143
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Offline mnkh27

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Re: Burr Brown OPA627AP
« Reply #22 on: March 14, 2007, 09:14:29 PM »
extension lah. /77
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Offline calvinhpk

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Re: Burr Brown OPA627AP
« Reply #23 on: March 14, 2007, 10:37:36 PM »
Quote from: mnkh27 on March 14, 2007, 09:14:29 PM
extension lah. /77
hahaha...spelling error
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Offline cbkhoon

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Re: Burr Brown OPA627AP
« Reply #24 on: March 16, 2007, 06:45:47 PM »
calvin & mike... any idea about this mod can be done on my esprit ?

anyone done this b4?

TQ
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Offline calvinhpk

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Re: Burr Brown OPA627AP
« Reply #25 on: March 16, 2007, 09:52:49 PM »
Quote from: cbkhoon on March 16, 2007, 06:45:47 PM
calvin & mike... any idea about this mod can be done on my esprit ?

anyone done this b4?

TQ
ur esprit uses SMT type op-amp
need to buy reflow equipment only can resolder
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Offline cbkhoon

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Re: Burr Brown OPA627AP
« Reply #26 on: March 16, 2007, 11:44:38 PM »
sorry... wat is reflow equipment  ??

is smt has different pin/package layout than the BB has??
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Offline cbkhoon

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Re: Burr Brown OPA627AP
« Reply #27 on: March 16, 2007, 11:51:27 PM »
found this:
http://en.wikipedia.org/wiki/Surface-mount_technology

Calvin, i know wat is smt alredi...

that means my amp cannot be upgraded  /24
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