Oppo HA-1 Impressions Thread
gPope
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Thanks! Double the price so it must be twice as good...I’ve not tried the LCD-1, but do run LCD-2C’s with mine with excellent results.

gPope
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So, what's the best way to cool the HA-1? Lay a fan on top of the grille? Wouldn't that be noisy?It can't hurt to cool it, especially for the HA-1 which runs hotter than most solid state preamps. Sure, it is designed to run hot and is well ventilated. But all else equal, higher temps mean slightly higher internal noise (thermal noise depends in part on temperature) and shorter life of internal components.
Note: I'm not saying the HA-1 will melt or self-destruct. It's been totally reliable for many people. My point is only that does run hot and has had more than its fair share of heat related failures. So additional cooling isn't a bad idea.
Raptor34
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Buy a silent cooling fan and just put it exhaust up on the grill. Yes, looks very weird but it works and no noise.So, what's the best way to cool the HA-1? Lay a fan on top of the grille? Wouldn't that be noisy?
EDIT: This is the fan I bought at amazon. AC Infinity 140mm cooling fan. It's a tad big so maybe the 120mm would be a better fit for the HA-1.
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MRC001
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Right. Just remember the natural airflow is bottom to top. Make sure the fan doesn't reverse that flow, but accelerates it.... Buy a silent cooling fan and just put it exhaust up on the grill. ...
gPope
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That looks great but what USB receptacle did you plug it into?
https://www.amazon.com/AC-Infinity-MULTIFAN-Receiver-Playstation/dp/B00G05A2MU
Raptor34
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I used the USB plug on the HA-1 face plate. It's only active when the amp is on soooo when you turn the HA-1 off, the fan shuts down as well.That looks great but what USB receptacle did you plug it into?
https://www.amazon.com/AC-Infinity-MULTIFAN-Receiver-Playstation/dp/B00G05A2MU
gPope
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Very good, thank you.I used the USB plug on the HA-1 face plate. It's only active when the amp is on soooo when you turn the HA-1 off, the fan shuts down as well.
Raptor34
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I just received a pair of Hifiman Arya headphones. They are spectacular by the way. I tried them on several amps (O2/SDAC, Audeze Deckard, THX AAA789, LCX/SDAC, ADI-2DAC, but they sound best paired with the Oppo HA1. I'm only running single-ended until I receive my balanced cable, but the Oppo HA1 is superb!
gPope
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Good. Where are you getting a balanced cable from?I just received a pair of Hifiman Arya headphones. They are spectacular by the way. I tried them on several amps (O2/SDAC, Audeze Deckard, THX AAA789, LCX/SDAC, ADI-2DAC, but they sound best paired with the Oppo HA1. I'm only running single-ended until I receive my balanced cable, but the Oppo HA1 is superb!
Middy
1000+ Head-Fier
Sometimes i wish i never sold it as it was such a good amp with a decent power supply.
IQIcables. I found them on ebay. I ordered the Balanced XLR Cable for Hifiman SUNDARA/ANANDA/ARYA/HE6SE Silver plated and Copper.Good. Where are you getting a balanced cable from?
gPope
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I think that's LQi Cables? https://lqicables.com/IQIcables. I found them on ebay. I ordered the Balanced XLR Cable for Hifiman SUNDARA/ANANDA/ARYA/HE6SE Silver plated and Copper.