jdowne04
New Head-Fier
- Joined
- Dec 22, 2015
- Posts
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Do you guys think buying a Modi 3 and Magni Heresy would be a worthy upgrade from the Objective 2+Odac Rev b? I would be using these with mostly AKG cans such as the K712 Pro and K7XX
Either your O2 is broken, either you never read real reviews and measurements that prove that this headamp is a very good one. It has a SINAD higher than 100dB, so it's completely transparent and it works with a huge amount of headphones. Check diyaudio forum for more technical details, but also for the measurements and thoughts on neurochrome webpage.The O2 is the worst sounding amp I listened to.
I'd agree with raoultrifan's comments. I see one of the possible scenarios with what you're experiencing:The O2 is the worst sounding amp I listened to. Is that your impression as well? Which amps did you contrast it with and liked better at the same price class? I had a $90 Chinese HA5000 clone which sounded a lot better.
If the O2 was defective or the cans had a peak I'd be able to tell from listening to test recordings and AB'ing.I'd agree with raoultrifan's comments. I see one of the possible scenarios with what you're experiencing:
So either you have a defective unit, your DAC/source is the weak link of being non-transparent and terrible performing objectively, or you just don't like a transparent amplifier output.
- Your O2 is defective, introducing unwanted distortion, channel imbalance, or artifacts in the record you're listening to
- Your source or DAC is not transparent and does not output the necessary voltage to reach the volume you're adjusting with the O2 amp - introducing distortion to the songs you're listening to
- You don't like how the HD600 reveals certain parts of a recording since the O2 amp is transparent - causing you to blame the amp for being transparent about your source
- You're sensitive to certain frequencies that the HD600's frequency response generates which the O2 amp (a transparent amp) reveals - causing you to describe how the amp sounds the "worst"
yes, I have not found a better example of ''measures good, sounds bad'' than O2 Amp.The O2 is the worst sounding amp I listened to. Is that your impression as well? Which amps did you contrast it with and liked better at the same price class? I had a $90 Chinese HA5000 clone which sounded a lot better.
yes, I have not found a better example of ''measures good, sounds bad'' than O2 Amp.
With modifications, like bypassing NJM2068 gain stage completely and replacing NJM4556 with OPA1622, the sound can be improved somewhat, and it should measure better, not worse, if done right. Unfortunately the power supply is also to blame for the poor sound quality... you'd basically be scrapping the entire original design to get something decent sounding.
If that HA5000 clone is really class A then any Class AB buffer like these op amps are not gonna sound great in comparison.
I sometimes think nawguy or whatever was the creator's nickname started that project to double-irony troll the hi-fi community.It's ironic that the Objective2 of all amps is the one that causes most people to realise measurements (at least the current methodology) cant tell full picture of the way something will sound.
And it's confusing that there are some many people who still believe its transparent, If you listen to at least one more amp that measures as well as or better than the O2 it should be obvious there is an audible difference in measurably transparent gear.
Chinese brands. Some use the same Texas Instruments chips.For the naysayers what other amps at this price point where you thinking?