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Old 3rd November 2007, 06:33 PM   #1
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Default AD1865 the best DAC

After some test with No oversampling DAC chip I think that the AD1865 is the best.

If compared to the new technology DAC chips like AD1955 and CS4397 since to be more natural.

The old TDA have a too close sound and with these some particulars are lost.

The preview of my article is here
http://www.audiodesignguide.com/DacNoOverSampling/

But where I can get some AD1865 chips to create a kit ?

Someone have tested the AD1861 or the AD1851 with th esame technology ?
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Old 3rd November 2007, 07:14 PM   #2
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Default Re: AD1865 the best DAC

Did you try PCM56 ? Same as AD1856 = 16 bit version of AD1861.
Best IMHO.

Every kind of TDA sucks, right.

Do you use an analog filter ?

I tried everything from unfiltered over transformer filter to active & passive brickwall and passive brickwall sounds best.

Your THD numbers seem to be a little bit.high.

Why only show spectrum to -80dB ?
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Old 3rd November 2007, 08:12 PM   #3
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Default Re: Re: AD1865 the best DAC

Quote:
Originally posted by Bernhard


...........and passive brickwall sounds best.

...........

Any schematic?
Do you use a digital filter?
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Old 3rd November 2007, 10:48 PM   #4
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Default Re: Re: Re: AD1865 the best DAC

Quote:
Originally posted by QSerraTico_Tico
digital filter?
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Old 4th November 2007, 05:44 AM   #5
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No digital filter

I/V converter made with a Caddock MK132

No analog filter, in the final version a LL7903 wil be used to increase the output voltage and tii create a natural filter
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Old 4th November 2007, 07:02 AM   #6
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You should consider the AD1862 as well, it is the bigger brother of the AD1865.
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Old 4th November 2007, 07:11 AM   #7
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I cannot find a shop to by the AD1861 or Ad1862

A question:

- also the new product dac like ad1955 could be used without digital filter and no oversampling ?
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Old 4th November 2007, 07:37 AM   #8
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Quote:
Originally posted by audiodesign
No digital filter

I/V converter made with a Caddock MK132

No analog filter, in the final version a LL7903 wil be used to increase the output voltage and tii create a natural filter

You will have birdies all over the place... and intermodulation poducts. What is a "natural" filter?
My question was addressed at Bernard though.
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Old 4th November 2007, 07:44 AM   #9
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Quote:
Originally posted by audiodesign
I cannot find a shop to by the AD1861 or Ad1862

A question:

- also the new product dac like ad1955 could be used without digital filter and no oversampling ?

Group buy for AD1862 on this forum!

AD1861 I still have at least 4 for sale.
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Old 4th November 2007, 07:46 AM   #10
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Default Re: Re: Re: Re: AD1865 the best DAC

Quote:
Originally posted by Bernhard


Do I take that "eek" for a no?
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