The HE-1 sound was not good: Too much bass and not muddy dark sound. After two days leaving it turned on I did not understand what happened. The sound completely transformed in open transparent sound and tight bass. Really fantastic! Warm up time is now about 20 Minutes and then it sounds great! Very open and detailed with exzellent room and not harsh! Best preamp ever!

I compared DI-20HE with Gustard U16, strongly modified Singxer SU-1, Singxer SU-6. Definitely Audio-GD is the best among them. The best structure/order on soundstange (feeling that everything is corret compared to another devices, sound is the most natural), great resolution and sounds are the most filled. Worth to spend money on it, better to wait and buy it.

This is a good amp for the price. Can easily compete with amps up to at least 1000 euros. Sound is more engaging and enjoyable than the good, but more sterile Topping family competitors. Thing I noticed is that the front switch doesn't really turn it off (it still keeps drawing about 3 watts), with the back switch it turns really off. Also this on/pre/pha switch can cause serious DC offset peaks, at least on the XLR-outs, which can be a serious issue with certain power amps driving speakers (Singxer needs to be turned on first and turned off last to prevent issues). Not sure if this is only my unit (btw I didn't put jumpers on the power supply protection circuit).

This is a good amp for the price. Can easily compete with amps up to at least 1000 euros. Sound is more engaging and enjoyable than the good, but more sterile Topping family competitors. Thing I noticed is that the front switch doesn't really turn it off (it still keeps drawing about 3 watts), with the back switch it turns really off. Also this on/pre/pha switch can cause serious DC offset peaks, at least on the XLR-outs, which can be a serious issue with certain power amps driving speakers (Singxer needs to be turned on first and turned off last to prevent issues). Not sure if this is only my unit (btw I didn't put jumpers on the power supply protection circuit).

Wat een fijne versterker, muisstil, zwarte achtergrond. Super veel details, erg mooie plaatsing van instrumenten en artiesten. Superstrakke basweergave. Speel met een Meze 109 pro hoofdtelefoon. Had hiervoor een creek obh21 hoofdtelefoon versterker maar dit is zo een grote sprong voorwaarts dat heb ik niet durven dromen. Vragen werden snel serieus en eerlijk beantwoord. Kortom heel tevreden.

The Singxer su6 tagled your equipment up to a much higher level. Especially if you're playing with a Nucleus, Nuc or Rhein z1 you certainly have to meet this sensational SU6 . Stronly recommended i’ve you like timing; rythm and refined heights. I’ts you’re number One choice.

This device sounds really great to me, a big improvement, much more than the SU2 alone! But in combination it is really nice

This evening I will listen to the HE1 extensively It certainly sounds a lot better now that I don't have to worry about the remote control anymore. (Psychological effect)😉🙂 First of all, my warmest thanks for the good and quick support for this special problem. Thanks also to Audio GD, who took the problem seriously and responded quickly, without further discussions.

thx for fixing my problems !! EVERYTHING sounds beautiful with my headphones now ;-) Very fast support...you make it! Outstanding service.

The R8 Mk2 arrived yesterday in perfect condition and my initial impression (even with burn-in just starting) is, that it is very good and that it is an improvement over my M7S (can't wait to see where this goes to when burn-in is finished

I am really impressed by the sound quality, with my Hifiman HE1000 stealth it is incredible to hear each single instrument separated, placed in its black sphere and each sphere placed in the lateral space and in depth. It is a truly holographic representation and the leap compared to my Hifiman Serenade is evident, in the next few days I will try it with all my other headphones.

The amplifier- 4.5 stars. Very good class A . Sound wise I find it more enjoyable when compared to A90. Price/quality ratio is great with SA1. Measurements are also excellent (see ASR for Amir review). Magna Hifi service- 10 stars. Excellent pre and post sale customer service from Rob and Jos. My SA1 had an issue with power protection. I was promptly resolved. Based on my experience I strongly recommend Magna HiFi.

Fantastic preamplifier for an unprecedented low price! This is my best hi-fi purchase in recent years.

Fantastic device! And really happy with the delivery as well.

In all my listening the main benefits of the DI20HE became very clear: detail, coherence, wide and deep stereo image. It is also definitely an upgrade in terms of noise and background (black). Fantastic three-dimensional soundstage. This upgrade is significant for my USB source! Many thanks!

This is my first "proper" AMP (I had a dragonfly before) and it just makes the music so engaging, lively and fun to listen to compared to some other amps I tried, even ones at twice it's price point. Also worth mentioning is that the staff at Magna have been great to me this whole time, there were a lot of delays due to Singxer but Rob and Jos were always honest with me and quick to respond to questions.

Thank you very much for great opportunity to get my system to the higher level of SQ. It works phenomenally much more than I´ve expected. I was very satisfied with my older DDC but this is another level of performance!

The HE1 mk3 is preamp is one impressive, heavy beast! Even at lower volumes, the sound is lively. At higher volumes it remains solid as a rock. It's a beast with a sweet side. The extra gain options make this preamp even more versatile. Only the size (especially the depth) is not for everyone, you need 50-55cm depth.

A substantial improvement was felt after the first 24 hours of continuous operation. The bass area has improved and the detail here is already much bigger and deeper. Now it's probably close to 100 hours of burn-in and I can judge at its true value. The improvement has exceeded my expectations. Not in the "small" area, on the contrary ! It's so big

This amp price/performance ratio is ridiculously good!!! Just get it. Sounds best connected to a balanced DAC, Rca sounds amazing too. Very Happy customer – great Magna service!

High end does not have to be expensive. This preamp proves that. I've heard a lot in my life but this is a no brainer. Thanks also Magna Hifi for this recommendation!

Le DI20HE est exceptionnel ! Très réactif aux changements de câbles : c'est bon signe. Plus de détail, mais sans être agressif car tout en douceur. La matière est là également, et associé à la dynamique très significative, le résultat est très vivant. Et pourtant entre un gros steamer et un très bon DAC (APL), le gain est incroyable. Merci à Magna pour la rapidité de livraison, et surtout à JOS pour sa patience pour régler quelques soucis avec un Lumin A1.

I can say. Just wow. This sounds sooooo gooood:) Thank you for everthing. Its been a pleasure doing buissnes with you:)

First of all and most important: I love the sound! This amp is made with high grade parts and feels very solid. Fully discrete class A preamp. Highly recommended!

Sounds great and features are simply unbeatable for this price. Replacing my Topping preamp - has never been able to charm me anyway.