Superlux HA3D

I could not hear any difference between headphone output of HA3D and Audient id22. After all, all quality solid state headphone amps are supposed to sound the same.

+ HA3D has a LOT more headroom with HD660S

+ balanced inputs

+ full metal construction

+ battery powered

= high quality tool for jams, music or movies

10 stars on this!

I’m constantly using it in my field rig quite along time, with no problem!

It drives anything, 3 separate headphone amplifiers in a small Sound Device clone. Tank build, batteries last long,

Such a useful solution!

It is small, uses 2 AA batteries, lasts long, sounds great (if you feed it great sound) and has three outputs for sharing or comparing headphones (reason I bought it).

Know that the pots all have channel imbalances down low, which is normal for cheap ones like these, so you'll need to lower your source's volume to get out of that lower volume range if it's too loud for you.

This thing has a lot of power even with 150 ohm Superlux headphones. I fed it with my Schiit Modius through its balanced inputs. Its sound is better than all my audio interfaces, which are all high-end ones.

I also fed it with the included stereo cable from an H2 Designs MIYO's headphone output. Great sound, much bigger and visual than the already impressive sound from the MIYO. So, this Superlux is decently clean.

The pots and knobs are the cheapest-feeling parts, but overall fit and finish is very nice. I recommend this unit. Sounds nicer than I expected, especially for the price.

Nice amp but if you have higher impedance cans it may lack output...

This is a good solid-state headphone amp. Clearly superior to a Behringer I have. But also more expensive price-wise.

I like the fact that I can use batteries to power it.

What I like less is the output. I need to max the volume on this and the guitar head in order to get a decent level of output in the headphones.

I place the unit between the emulated output of the Blackstar ID core and the headphones which are 56 Ohms impedance. It is a bit too much for the guitar amp to handle directly and I was hoping to get a bit of help from this headphones amp.

The swiss army knife in my studio

Very little noise, versatile inputs and outputs plus battery operation.

And it's built like a tank.

Been using it for years now and feel like it will deliver for many more.

serious build quality to get on with

the unit is solid and the three volume controls are lovely. not only that they look nice as some kind of a reminder of smooth vintage devices. no they also are precise and high in quality.

to tell so far I think the sound is a 4 of 5 though I m not sure yet if there s some room for the signal quality in my case. youknow cable settings, perfect value of gaining, source dependence and on. what I definitely can tell remains that the box allows me to do a better gain mix so that I can reduce my noise level. to have a bit of a chance to reach this goal I took the balanced inputs of course.

satisfied

good quality, good feel, but it didm t come with a power supply, so i use it on batteries

Best phone amp price/quality

Satisfied

Really neat little box for the price you pay. Sturdy build with quality knobs. Sound quality and preamps are perfect for video village use and battery life is long as well. Recommended product!

Best to it's Class.

Best headphone pre amp that I came across at it's range price.

Fantastic built quality, great sound and it runs on two AA batteries for a very long time!!