AD 846 AN is ther a better sounding opamp out there

NAP 160 · 7th September 2002, 08:32 AM

i own a audio synthesis dsm dac and the AD 846 AN OPAMPS ARE INSIDE.i have priced these up and they are 12 pounds each is there better qualiy single opamps to be had and are they cheaper thank you for your time john

dice45 · 7th September 2002, 05:07 PM

NAP 160,
i doubt you get any answer in the analogue board.
I took the freedom to move your thread to the digital board.

HarryHaller · 7th September 2002, 05:24 PM

It's an analog part....... why is it better placed in the digital section? Actually this is very good sounding op amp for this application. You could do a lot worse by random substitution.

H.H.

Peter Daniel · 7th September 2002, 05:32 PM

It is neither analog nor digital part, but solid state.

HarryHaller · 7th September 2002, 06:52 PM

Nope...... its an analog part, a current feedback op amp. Maybe that's why it is made by Analog Devices.....

H.H.

hifiZen · 7th September 2002, 11:40 PM

I've heard a lot of people say the AD8610 is a nicer sounding opamp... but, I've never done a direct comparison myself. You should also check out the OPA627 which is highly regarded. I believe Mark Levinson uses those as I-V converters in their DACs. There's a thread on here somewhere in which someone lists the results of their opamp comparisons. Or, if you check on audioasylum, I think there's a lot of opamp opinions on there.

I've never run into a digital opamp, and I sure hope I never do!

BrianL · 8th September 2002, 09:37 PM

Harry said:

------------------------------------------

Maybe that's why it is made by Analog Devices.....

-------------------------------------------

Harry, they make DSPs as well and thems sure ain't analog.

Then there are ADCs and DACs which are only "half analog".

Maybe they should change their name to "Some Analog Devices"
(SAD...)

;-)

Peter Daniel · 8th September 2002, 10:26 PM

That's true, and the only AD parts I'm using are digital. By saying "solid state", I was rather refering to the section of this Forum.

garwin · 22nd September 2002, 03:20 PM

http://www.lcaudio.dk/com/ad825.htm

On this site they prefer AD825 and it is cheap too.

/ Patrick

Christer · 22nd September 2002, 04:08 PM

FYI since nobody has mentioned it in this thread, AD846 is
discontinued. AD suggests AD8001 or AD811 as replacement.

Garwin, note that AD846 is a current-feedback amp, so it may
not be possible to replace it with a voltage-feedback amp
such as AD825. There is a lot of talking about the AD825,
probably because of the LCs modules. I am a bit suspicious about
LCs claims, since the comparison table is flawed. The data for
AD825 is not taken directly from the datasheet, but arbitrarily
selected from the ranges given, while the worst-case figures
are often used for the contenders. how it sounds is a different
matter, of course, I am just pointing out that LCs attempt to
couple their listeining experiences to data is questionable.
There are many other interesting choices out there, and there
are many opams with similar data to AD825, which is actually
a low-cost device not intended for audio (could still be good for audio, of course). I haven't heard AD825 myself, but a friend of mine is currently trying it an seems to prefer it to OPA627 when
used in front of a BUF634 in his preamp.

7th September 2002, 08:32 AM	#1
NAP 160 diyAudio Member Join Date: Jul 2002 Location: NEWCASTLE	AD 846 AN is ther a better sounding opamp out there i own a audio synthesis dsm dac and the AD 846 AN OPAMPS ARE INSIDE.i have priced these up and they are 12 pounds each is there better qualiy single opamps to be had and are they cheaper thank you for your time john

7th September 2002, 05:07 PM	#2
dice45 diyAudio Member Join Date: Jan 2002 Location: Munich, Bavaria	NAP 160, i doubt you get any answer in the analogue board. I took the freedom to move your thread to the digital board. __________________ Greets, Bernhard

7th September 2002, 05:24 PM	#3
HarryHaller Banned Join Date: Feb 2002 Location: Dallas,Texas	AD846's and moderators run amuck It's an analog part....... why is it better placed in the digital section? Actually this is very good sounding op amp for this application. You could do a lot worse by random substitution. H.H.

7th September 2002, 05:32 PM	#4
Peter Daniel diyAudio Member Join Date: Jul 2002 Location: Toronto, Canada	It is neither analog nor digital part, but solid state. __________________ www.audiosector.com “Do something really well. See how much time it takes. It might be a product, a work of art, who knows? Then give it away cheaply, just because you feel that it should not cost so much, even if it took a lot of time and expensive materials to make it.” - JC

7th September 2002, 06:52 PM	#5
HarryHaller Banned Join Date: Feb 2002 Location: Dallas,Texas	It is neither analog nor digital part Nope...... its an analog part, a current feedback op amp. Maybe that's why it is made by Analog Devices..... H.H.


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7th September 2002, 11:40 PM	#6
hifiZen diyAudio Member Join Date: May 2001 Location: Mountain View, CA	I've heard a lot of people say the AD8610 is a nicer sounding opamp... but, I've never done a direct comparison myself. You should also check out the OPA627 which is highly regarded. I believe Mark Levinson uses those as I-V converters in their DACs. There's a thread on here somewhere in which someone lists the results of their opamp comparisons. Or, if you check on audioasylum, I think there's a lot of opamp opinions on there. I've never run into a digital opamp, and I sure hope I never do! __________________ - Chad.

8th September 2002, 09:37 PM	#7
BrianL diyAudio Member Join Date: Mar 2002 Location: USA	Harry said: ------------------------------------------ Maybe that's why it is made by Analog Devices..... ------------------------------------------- Harry, they make DSPs as well and thems sure ain't analog. Then there are ADCs and DACs which are only "half analog". Maybe they should change their name to "Some Analog Devices" (SAD...) ;-) __________________ bel

8th September 2002, 10:26 PM	#8
Peter Daniel diyAudio Member Join Date: Jul 2002 Location: Toronto, Canada	That's true, and the only AD parts I'm using are digital. By saying "solid state", I was rather refering to the section of this Forum. __________________ www.audiosector.com “Do something really well. See how much time it takes. It might be a product, a work of art, who knows? Then give it away cheaply, just because you feel that it should not cost so much, even if it took a lot of time and expensive materials to make it.” - JC

22nd September 2002, 03:20 PM	#9
garwin diyAudio Member Join Date: Sep 2002 Location: Sweden	AD 825 seems to be better.... http://www.lcaudio.dk/com/ad825.htm On this site they prefer AD825 and it is cheap too. / Patrick

22nd September 2002, 04:08 PM	#10
Christer diyAudio Member Join Date: Sep 2002 Location: Sweden	FYI since nobody has mentioned it in this thread, AD846 is discontinued. AD suggests AD8001 or AD811 as replacement. Garwin, note that AD846 is a current-feedback amp, so it may not be possible to replace it with a voltage-feedback amp such as AD825. There is a lot of talking about the AD825, probably because of the LCs modules. I am a bit suspicious about LCs claims, since the comparison table is flawed. The data for AD825 is not taken directly from the datasheet, but arbitrarily selected from the ranges given, while the worst-case figures are often used for the contenders. how it sounds is a different matter, of course, I am just pointing out that LCs attempt to couple their listeining experiences to data is questionable. There are many other interesting choices out there, and there are many opams with similar data to AD825, which is actually a low-cost device not intended for audio (could still be good for audio, of course). I haven't heard AD825 myself, but a friend of mine is currently trying it an seems to prefer it to OPA627 when used in front of a BUF634 in his preamp.

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