NelsonVandal
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EDIT: This thread has become a bit longer than expected. In short. I implemented AD797 in a bad way and found the sound to be colored. Now it's better implemented and it sounds very neutral, and it has become my favourite opamp. Very smooth and unfatiguing, maybe there's a lack of aggressiveness.
I bought some AD797AR (SOIC) from eBay, and they don't sound as I expected from the reviews by others. I thought they would sound dark and bassy. I've tried them in 3 different amps. Buffered and unbuffered, Jung multiloop and normal multiloop. 9, 12 and 18 V supply. I've tried to add small caps in the feedback loop as suggested in the data sheet. I've burnt them in over night. There's no excessive current draw, noise, hum or clicks to indicate malfunction.
To my ears they have a coloration in the lower treble that make them sound bright. This coloration is similar to AD823, but AD797 sounds much cleaner and more sofisticated. They're not the least bassy. I find them very neutral in bass and mid.
I've only read one review of AD797 that correlates to my findings and that's from Majkel: "AD797 - is like more analytical version of AD825, less impactful and with some glaze over highs." Are the eBay AD797 from another batch or even fakes?
As I understand AD797 seems to go through a revival, used in Zero DAC and D1. Please comment your impressions of AD797.
I bought some AD797AR (SOIC) from eBay, and they don't sound as I expected from the reviews by others. I thought they would sound dark and bassy. I've tried them in 3 different amps. Buffered and unbuffered, Jung multiloop and normal multiloop. 9, 12 and 18 V supply. I've tried to add small caps in the feedback loop as suggested in the data sheet. I've burnt them in over night. There's no excessive current draw, noise, hum or clicks to indicate malfunction.
To my ears they have a coloration in the lower treble that make them sound bright. This coloration is similar to AD823, but AD797 sounds much cleaner and more sofisticated. They're not the least bassy. I find them very neutral in bass and mid.
I've only read one review of AD797 that correlates to my findings and that's from Majkel: "AD797 - is like more analytical version of AD825, less impactful and with some glaze over highs." Are the eBay AD797 from another batch or even fakes?
As I understand AD797 seems to go through a revival, used in Zero DAC and D1. Please comment your impressions of AD797.