[repman244]

Quote:

Personally, I would say just spend the cash and buy three LME49990 (6 chips) pre-soldered adapters, cost around $60 (Frugalphile, on eBay).
Those op-amps are very tiny.
I bought 10 LME49990 chips and the adapters and solder and the solding iron.
When I finally open the box with the bare op-amps, and saw how small the op-amps are, I knew I was in for problems.
(Me having 48 year old eyes, is also part of the problem with soldering little op-amps)
I wish I had just bought the pre-soldered, before wasting my cash on "parts".
I ended up buying pre-soldered AD797BRs from China.

Like I said eBay isn't an option really. I only need the opamps for the I/V (I only use the HP amp, so the buffer isn't used).
 
I'm leaning towards 2xTHS4032 and making my own adapters (which isn't an option with the LME49990), soldering isn't a problem since I soldered tons of SMD chips before.
 
Looking on Farnell I see two versions of THS4032:
- THS4032ID
- THS4032CD
CD is cheaper for 2€ but I can't find any difference in the specification PDF...what's the difference.

 

[Sylverant]

From what I've read the THS4032CD is actually mil-spec, so it might be the better one. I bought 3 of these, if your wondering.

http://www.ebay.com/itm/1PCS-TI-THS4032CD-THS4032-ON-DIP-ADAPTER-/221070742557?pt=LH_DefaultDomain_0&hash=item3378d7d41d

Edit: Not sure anymore

 

[PurpleAngel]

Quote:

Like I said eBay isn't an option really. I only need the opamps for the I/V (I only use the HP amp, so the buffer isn't used).
 
I'm leaning towards 2xTHS4032 and making my own adapters (which isn't an option with the LME49990), soldering isn't a problem since I soldered tons of SMD chips before.
 
Looking on Farnell I see two versions of THS4032:
- THS4032ID
- THS4032CD
CD is cheaper for 2€ but I can't find any difference in the specification PDF...what's the difference.

The "ID" can work in a wide temperature range then the "CD".
       +85c to -40c                      verses                         +70c to -0c

 

[repman244]

Quote:

From what I've read the THS4032CD is actually mil-spec, so it might be the better one. I bought 3 of these, if your wondering.

http://www.ebay.com/itm/1PCS-TI-THS4032CD-THS4032-ON-DIP-ADAPTER-/221070742557?pt=LH_DefaultDomain_0&hash=item3378d7d41d

 
Quote:

The "ID" can work in a wide temperature range then the "CD".
       +85c to -40c                      verses                         +70c to -0c

I see, thanks to both of you, I guess I'll just grab the ID's then.
 
Sylverant are you happy with them or do they lack in certain areas? I'm coming from 2xLME48960NA which do lack a bit of bass however they sound really nice to me.
But if the THS4032 are better I'll try them and decide which to use (using HD600).

 

[WiR3D]

I also don't get the shipping thing. I'm in South Africa and shipping was fine- btw i bought from ebay (hifiic) 

 

[Sylverant]

Quote:

The "ID" can work in a wide temperature range then the "CD".
       +85c to -40c                      verses                         +70c to -0c

Quote:

 

I see, thanks to both of you, I guess I'll just grab the ID's then.
 
Sylverant are you happy with them or do they lack in certain areas? I'm coming from 2xLME48960NA which do lack a bit of bass however they sound really nice to me.
But if the THS4032 are better I'll try them and decide which to use (using HD600).

 
I had thought I read somewhere that the CD was mil-spec, but from the data PurpleAngel found (which I looked around for and found as well), it seems that the ID is most likely the Mil-spec model. If you look around and find those that would be great, but the THS4032CD are working just fine for me.

I am happy with them. I wasn't originally unsatisfied with the stock opamps soundstage size, but felt they lacked a certain level of instrument separation and placement. I basically agree with WiR3D on their sound; the soundstage gets a little bigger, along with a big improvement in imaging and speed. Their also smoother on top compared to the stock ones. I wouldn't call them bass crazy by any means, but they do a good job of bringing out the bass in unboosted jazz recordings like Jazz At The Pawnshop. I should probably let you know that I am using the AKG K271(with 30ohm adapter)/K400EP and HD560 with the STX,all of which are bass light compared to your HD650, so you'll probably get better results in regards to bass than I do. Overall I would say they're pretty balanced, which is why I like them.

I don't know however, how it compares to the LME49990. It's possible that you'll experience a slight drop in soundstage size moving from the LME48960NA to THS4032.

 

[networkn]

Quote:

Quote:
Quote:
 
I had thought I read somewhere that the CD was mil-spec, but from the data PurpleAngel found (which I looked around for and found as well), it seems that the ID is most likely the Mil-spec model. If you look around and find those that would be great, but the THS4032CD are working just fine for me.

I am happy with them. I wasn't originally unsatisfied with the stock opamps soundstage size, but felt they lacked a certain level of instrument separation and placement. I basically agree with WiR3D on their sound; the soundstage gets a little bigger, along with a big improvement in imaging and speed. Their also smoother on top compared to the stock ones. I wouldn't call them bass crazy by any means, but they do a good job of bringing out the bass in unboosted jazz recordings like Jazz At The Pawnshop. I should probably let you know that I am using the AKG K271(with 30ohm adapter)/K400EP and HD560 with the STX,all of which are bass light compared to your HD650, so you'll probably get better results in regards to bass than I do. Overall I would say they're pretty balanced, which is why I like them.

I don't know however, how it compares to the LME49990. It's possible that you'll experience a slight drop in soundstage size moving from the LME48960NA to THS4032.

 
So this review above relates to the THS4032? It sounds like the sound I want to balance out the dark sounding 650's would that be a fair comment? 
 
Sorry to be asked to be spoonfed, but I need a plug and play solution, is this what I need x 2?
 
http://www.ebay.com/itm/1PCS-TI-THS4032CD-THS4032-ON-DIP-ADAPTER-/221070742557?pt=LH_DefaultDomain_0&hash=item3378d7d41d

 

[WiR3D]

Quote:

 
So this review above relates to the THS4032? It sounds like the sound I want to balance out the dark sounding 650's would that be a fair comment? 
 
Sorry to be asked to be spoonfed, but I need a plug and play solution, is this what I need x 2?
 
http://www.ebay.com/itm/1PCS-TI-THS4032CD-THS4032-ON-DIP-ADAPTER-/221070742557?pt=LH_DefaultDomain_0&hash=item3378d7d41d

bingo

 

[repman244]

Quote:

Quote:
Quote:
 
I had thought I read somewhere that the CD was mil-spec, but from the data PurpleAngel found (which I looked around for and found as well), it seems that the ID is most likely the Mil-spec model. If you look around and find those that would be great, but the THS4032CD are working just fine for me.

I am happy with them. I wasn't originally unsatisfied with the stock opamps soundstage size, but felt they lacked a certain level of instrument separation and placement. I basically agree with WiR3D on their sound; the soundstage gets a little bigger, along with a big improvement in imaging and speed. Their also smoother on top compared to the stock ones. I wouldn't call them bass crazy by any means, but they do a good job of bringing out the bass in unboosted jazz recordings like Jazz At The Pawnshop. I should probably let you know that I am using the AKG K271(with 30ohm adapter)/K400EP and HD560 with the STX,all of which are bass light compared to your HD650, so you'll probably get better results in regards to bass than I do. Overall I would say they're pretty balanced, which is why I like them.

I don't know however, how it compares to the LME49990. It's possible that you'll experience a slight drop in soundstage size moving from the LME48960NA to THS4032.

Thank you, thats exactly what I was looking to hear. I guess I'll order 2 of them then and see how I like them compared to what I have now.

 

[LordShad0w]

Have any of you tried the Muses chip that Asus is using for the Muse Edition inside of your Xonar Essence ST(X)?

I was curious if it worked and how it sounded if it did.

Thank you in advance

 

[WiR3D]

Quote:

Have any of you tried the Muses chip that Asus is using for the Muse Edition inside of your Xonar Essence ST(X)?

I was curious if it worked and how it sounded if it did.

Thank you in advance

say what? 

 

[LordShad0w]

The opamp chip that they are using in this: http://www.6moons.com/audioreviews/asus/1.html . I was curious if anyone had yet bothered to try it in the Essence ST or STX.
Sorry for the confusion.
 

 

[WiR3D]

Quote:

The opamp chip that they are using in this: http://www.6moons.com/audioreviews/asus/1.html . I was curious if anyone had yet bothered to try it in the Essence ST or STX.
Sorry for the confusion.
 

what a disgusting website/ article layout. Made my eyes bleed. But no I haven't tested the muses opamp, and would actually be curious how the under specced over priced part performs.

 

[Valicious]

I just got 6 LME49990 opamps to try out. (Among a bunch of other opamps) What is the DIP adapter I need?

Will this work?
http://www.ebay.com/itm/Brown-Dog-Single-to-Dual-Op-AMP-Adapter-DIP-version-Cimarron-Technology-/300807966060?pt=LH_DefaultDomain_0&hash=item46098d4d6c

Or is there an even cheaper version out there?

 

[WiR3D]

Quote:

I just got 6 LME49990 opamps to try out. (Among a bunch of other opamps) What is the DIP adapter I need?
Will this work?
http://www.ebay.com/itm/Brown-Dog-Single-to-Dual-Op-AMP-Adapter-DIP-version-Cimarron-Technology-/300807966060?pt=LH_DefaultDomain_0&hash=item46098d4d6c
Or is there an even cheaper version out there?

http://www.ebay.com/itm/2-Dual-SOIC-DIP-8-Convert-PCB-Adapter-SMD-OPA627-/320824421618?pt=US_Amplifier_Parts_Components&hash=item4ab2a02cf2
http://www.ebay.com/itm/5PCS-Dual-SOIC-DIP-8-Convert-PCB-Adapter-SMD-OPA627-gold-plated-/220955629303?pt=US_Amplifier_Parts_Components&hash=item3371fb56f7