Ad8620 Vs. THS4032

Cyan · 18th October 2008, 09:15 PM

Wich one do you think is the best opamp for the sound card?
I've ordered the ad8620BR, but i'm reading that the THS4032 is much better than the ad8620 (don't know if it's the br version, but i think yes). Should i cancel the order and buy the THS4032 instead?

amc184 · 19th October 2008, 05:27 AM

I would get both. There are so many variables (circuit design, layout, decoupling, etc.) that it would really be hard to say which will perform better in your soundcard. These opamps are both high speed devices, so one or both of them may not even work with the soundcard as it is. What opamp does it currently use?

peranders · 19th October 2008, 07:14 AM

AD8620 is extremely good so the possible improvement to change to an even better(?) is small.

The THS opamp is also one with BJT input stage.

Which opamp do you have right now?

Robscix1 · 19th October 2008, 05:17 PM

The AD8620 is a good chip. I haven't personally tried the THS4032..

Cyan · 20th October 2008, 02:05 PM

The default opamp of the auzen prelude is the lm45 something (don't remember it's full name). It's that famous cheap but good opamp. I wanted an opamp with a sound similiar to that one, but better, so i chose the ad8620br. Also, this last one can be found on the auzen official web site, with the adaptor, so it's sure 100% that it's compatible with the audio card. The THS4032 isn't on the auzen opamp list (yet?), so i heard of it only after i had already ordered the ad8620br. That's it, i don't even know if it's fully compatible, and what kind of sound it has.
So if you say that the difference between the ad8620br and the THS4032 is but a small improvement, i guess i'll be content with the ad8620br.
Also, i'd like to know the THS4032 price. If it's much more expensive than the ad8620br i'll be even happier to not have bought it ^^.

Robscix1 · 20th October 2008, 03:22 PM

The 8620BR is fully compatible with the Prelude. It is a extremely open clean sounding opamp and there is a improvment over the LM4562NA. Alteast on my personal gear anyway and in my opinion.

pftrvlr · 14th November 2008, 05:47 AM

In my Twistedpear COD DAC, at the balance to single conversion position after the AD826 IV, I have tried both AD8620 and THS4032, also LM4562, AD8066, LM6172, OPA2132 and OPA2064 etc.

For pop/jazz/vocal music, I prefer THS4032 - a lot.

The difference between THS4032 and other amp in this case is day and night. It sounds a lot fuller, more importantly, it has much better pace than other amp. It is simply more musical. It tips towards the lower end. But that is what I am looking for. Comparing to the Twistedpear Buffalo, the COD in on the thin side.

You have to try out THS4032.

Cyan · 14th November 2008, 09:57 AM

Thx for the info. But i think that if i'll ever upgrade my opamp again, i'll go for a discrete burson opamp.
Maybe it is the "best" (if best can exist) opamp?

Joseph0 · 14th November 2008, 07:28 PM

you see the soldering the man does in that 'burson opamp upgrade in 5min' video? no static protection, no flux, force fitting module to pcb, pcb moving all around while soldering--component side loosely propped up by the cd player chassis itself, not cleaning with alcohol but just a brush, heavy transformer still connected to pcb just hanging off to the side by its wires--watch at the end when he's ready to put cdp back together..and I like how they just skip over the part of man actually removing the old opamps..it would have been a treat to watch him do that..with transformer hanging off table as he cuts through the ICs..

http://www.bursonaudio.com/Burson_HDAM_Module.htm

i don't mean to be down on the guy. I couldn't care less. I think it's kind of funny though..

pftrvlr · 14th November 2008, 08:07 PM

There might be a best amp for a particular circumstance, but I just don't want be locked to only one chip. I like to use different chips to pain different colors of the sound.

One of the greatest fun of HIFI is comparision, I want to be able to easily tube-roll and chip-roll my gear.

HiFi to me is just too much of personal taste, also depending on the mood. Something I feel NE5532 sounds dearer than those new kids in town.

18th October 2008, 09:15 PM	#1
Cyan diyAudio Member Join Date: Oct 2008	Ad8620 Vs. THS4032 Wich one do you think is the best opamp for the sound card? I've ordered the ad8620BR, but i'm reading that the THS4032 is much better than the ad8620 (don't know if it's the br version, but i think yes). Should i cancel the order and buy the THS4032 instead?

19th October 2008, 07:14 AM	#3
peranders Electrons are yellow and more is better! diyAudio Member Join Date: Apr 2002 Location: Göteborg, Sweden Blog Entries: 4	AD8620 is extremely good so the possible improvement to change to an even better(?) is small. The THS opamp is also one with BJT input stage. Which opamp do you have right now? __________________ /Per-Anders (my first name) or P-A as my friends call me

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Behringer SRC2496 A/D D/A with THS4032	seeyou	Digital Line Level	13	2nd January 2010 03:19 AM
Fs: Ad8620	cartman	Swap Meet	0	21st April 2009 12:24 PM
FS/Trade: 3 opa627BP, 1 opa627AU, 2 THS4032	Joseph0	Swap Meet	0	20th November 2008 01:35 PM
WTT/FS: AD8620 to AD8610	cartman	Swap Meet	1	8th July 2008 07:37 AM
Ad8620	roibm	Parts	10	23rd March 2004 09:48 PM

New To Site?	Need Help?
Register to Participate Search Privacy Statement Contact Us	Frequently Asked Questions Did you forget your password? Mark Forums Read


	Please consider donating to help us continue to serve you. Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving

19th October 2008, 05:27 AM	#2
amc184 diyAudio Member Join Date: May 2007 Location: Christchurch	I would get both. There are so many variables (circuit design, layout, decoupling, etc.) that it would really be hard to say which will perform better in your soundcard. These opamps are both high speed devices, so one or both of them may not even work with the soundcard as it is. What opamp does it currently use?

19th October 2008, 05:17 PM	#4
Robscix1 diyAudio Member Join Date: Oct 2008	The AD8620 is a good chip. I haven't personally tried the THS4032..

20th October 2008, 02:05 PM	#5
Cyan diyAudio Member Join Date: Oct 2008	The default opamp of the auzen prelude is the lm45 something (don't remember it's full name). It's that famous cheap but good opamp. I wanted an opamp with a sound similiar to that one, but better, so i chose the ad8620br. Also, this last one can be found on the auzen official web site, with the adaptor, so it's sure 100% that it's compatible with the audio card. The THS4032 isn't on the auzen opamp list (yet?), so i heard of it only after i had already ordered the ad8620br. That's it, i don't even know if it's fully compatible, and what kind of sound it has. So if you say that the difference between the ad8620br and the THS4032 is but a small improvement, i guess i'll be content with the ad8620br. Also, i'd like to know the THS4032 price. If it's much more expensive than the ad8620br i'll be even happier to not have bought it ^^.

20th October 2008, 03:22 PM	#6
Robscix1 diyAudio Member Join Date: Oct 2008	The 8620BR is fully compatible with the Prelude. It is a extremely open clean sounding opamp and there is a improvment over the LM4562NA. Alteast on my personal gear anyway and in my opinion.

14th November 2008, 05:47 AM	#7
pftrvlr diyAudio Member Join Date: Feb 2007 Location: SoCal	In my Twistedpear COD DAC, at the balance to single conversion position after the AD826 IV, I have tried both AD8620 and THS4032, also LM4562, AD8066, LM6172, OPA2132 and OPA2064 etc. For pop/jazz/vocal music, I prefer THS4032 - a lot. The difference between THS4032 and other amp in this case is day and night. It sounds a lot fuller, more importantly, it has much better pace than other amp. It is simply more musical. It tips towards the lower end. But that is what I am looking for. Comparing to the Twistedpear Buffalo, the COD in on the thin side. You have to try out THS4032.

14th November 2008, 09:57 AM	#8
Cyan diyAudio Member Join Date: Oct 2008	Thx for the info. But i think that if i'll ever upgrade my opamp again, i'll go for a discrete burson opamp. Maybe it is the "best" (if best can exist) opamp?

14th November 2008, 07:28 PM	#9
Joseph0 diyAudio Member Join Date: Jul 2005 Location: --	you see the soldering the man does in that 'burson opamp upgrade in 5min' video? no static protection, no flux, force fitting module to pcb, pcb moving all around while soldering--component side loosely propped up by the cd player chassis itself, not cleaning with alcohol but just a brush, heavy transformer still connected to pcb just hanging off to the side by its wires--watch at the end when he's ready to put cdp back together..and I like how they just skip over the part of man actually removing the old opamps..it would have been a treat to watch him do that..with transformer hanging off table as he cuts through the ICs.. http://www.bursonaudio.com/Burson_HDAM_Module.htm i don't mean to be down on the guy. I couldn't care less. I think it's kind of funny though..

14th November 2008, 08:07 PM	#10
pftrvlr diyAudio Member Join Date: Feb 2007 Location: SoCal	There might be a best amp for a particular circumstance, but I just don't want be locked to only one chip. I like to use different chips to pain different colors of the sound. One of the greatest fun of HIFI is comparision, I want to be able to easily tube-roll and chip-roll my gear. HiFi to me is just too much of personal taste, also depending on the mood. Something I feel NE5532 sounds dearer than those new kids in town.

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)