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Sabaj A20h Balanced Headphone Amplifier Owner's Thread

carlcamper

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http://www.sabaj.com.cn/en/productshow.asp?id=86

Since @amirm hasn't reviewed this yet (he's only reviewed the A10h so far), I'd like to open an owner's thread for the Sabaj A20h. It cost me around $200 USD.

For me, this is one of the best values in the Balanced Headphone Amplifier space, as it has relay volume control for perfect channel matching, a remote control, excellent noise floor in SE and Balanced, 3 gain stages, and fully balanced Input and Output for a very reasonable price. The only downside for me is the inputs are located at the back, but I mitigate this by running Adapter cables to the front (one for TRS to 3.5mm, and another for XLR to 2.5mm balanced)

I personally pair it with the Topping D10 Balanced DAC, for a very reasonable ~$330 USD in total

For others out there, what are your thoughts?

WhatsApp Image 2022-06-01 at 12.46.55 PM.jpeg
 
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carlcamper

carlcamper

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Veri

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Thanks for the link, good review! By the way, what DAC are you using with it?
I used to couple it with a Pecanpi (XLR) but currently have an Aune X8 which I bought on sale, single ended to A20h. Both SE/BAL inputs have worked fine. SE might be more susceptible to laptop/grounding noise though, but only noticed that with the most sensitive of IEMs. And my Topping A90 had that issue too..
 
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carlcamper

carlcamper

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@Veri I recently discovered my unit in balanced mode has very slight crosstalk in High Gain, meaning when I play a LEFT and RIGHT tone in my IEMs (ex. the Windows Playback Test), I can hear it bleed in the other side . Can you confirm it in your unit as well? (I tried it in my Gustard H16 in balanced mode, and confirmed it has no crosstalk/bleed, but the unbalanced mode has noticeable hiss even in Low Gain for my unbalanced IEMs.)
 
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Veri

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@Veri I recently discovered my unit in balanced mode has very slight crosstalk in High Gain, meaning when I play a LEFT and RIGHT tone in my IEMs (ex. the Windows Playback Test), I can hear it bleed in the other side . Can you confirm it in your unit as well? (I tried it in my Gustard H16 in balanced mode, and confirmed it has no crosstalk/bleed, but the unbalanced mode has noticeable hiss even in Low Gain for my unbalanced IEMs.)
Just tested, no crosstalk issue here. This is using dynamic sennheiser headphones though. Can I ask why you are using IEMs with the Sabaj in high gain? I don't need remotely as much power using more insensitive full-size headphones so a bit confused by that.
 
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carlcamper

carlcamper

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It's more of wanting to stay on a single gain setting when I shift from my IEMs to my other headphones. Anyway, thanks for confirming its not an issue on headphones (I'm assuming its a high impedance one), If you have any low impedance headphones/IEMs, it might manifest.
 
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carlcamper

carlcamper

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Just got word from Sabaj this is normal especially on very sensitive IEMs and headphones.
 

reasons

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Seems that new versions of all there amps/dacs are releasing. Might want to wait on this one.
 
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