ZoomZHA-4 Compact 4-Out Handy Headphone Amplifier

Not much humming till you get to the max. lightweight but doesn't feel cheap

I’m a huge fan of Zoom products and this little headphone box is an excellent addition. There are so many uses for it. I keep moving it around my studio.

BUILD QUALITY: This headphone amp works but has a severe problem. When it has one or more headphones plugged in, the weight of the cords will cause the case to tip all the way back. There's nothing to keep it solidly on your desktop. And, if your headphone cords happen to fall over the back side of your desk that will pull the case right over and onto the floor. The case weighs very little and there's nothing to keep it in place. Sonically it works but of course, there are better headphone amps. The controls work with no added noise and the mute button for each headphone is a nice feature.NO USB-C CABLE: The other issue is that it does NOT come with an USB-C cord for non-battery operation but does come with a male-to-male mini-jack cable to connect to the sound source. The lack of the USB-C cord means you'll have to get one on your own and use the battery operation feature. You'll also need a USB-C charger as well.VALUE FOR MONEY: For the price it's pricy, especially considering the tip-over issue and lack of the USB-C cable and charger, even though you can get these elsewhere. But, for the price, the USB-C cable should have been included.

Build quality isn’t typical Zoom quality but it still works fine.

Un amplificador excelente, muy buena potencia y calidad de audio!

I'll admit I'm a big Zoom fan and I absolutely adore my H6 multi track recorder. The thing feels like something Rolls-Royce would make - and the sound quality is amazing.So when I had a need for this I wondered if all the negative reviews about noise and scratchy pots etc were just from the competition - "tactical reviews" as it were.So I ordered one and I also ordered a https://www.amazon.com/dp/B09JV84FHZ?psc=1&ref=ppx_yo2ov_dt_b_product_details. just to be on the safe side.Unboxing the Zoom, it doesn't feel like a Zoom product at all, the plastic is so cheap and the volume knobs are just nasty - thin, don't feel good in your hand etc....So I plugged it in to USB-C power and routed some audio from my MacBook Pro into my B&W headphones. The sound was unbelievably awful, the pots were indeed very scratchy and the whole thing was just worthy of the trash can I thought. So I was about to start a return.As I pulled the power cable out, for the couple of seconds until it died the sound quality suddenly became awesome... which got me to thinking... So as it was plugged into the same USB-C adapter as my MacBook Pro, I pulled the Mac power plug and tried again - absolutely perfect - great sound quality and no noise from the pots.So I can only assume there is some nasty design issue here with some kind of feedback coming through the power. I tried it on batteries too (one of the big selling points to me of the Zoom over the other one I bought) and it worked great.So I'll keep it because it's easy to slip in the bag when you want to share a movie between 3-4 sets of headphones and having one less power cable to manage is awesome.But the build quality remains what it is.The other unit I will review separately, but just by way of comparison, was $29.99 to the Zoom's $69.99 and looks incredibly well built, knobs feel good, no issues with noise and very good sound quality. Bit bigger to carry and requires plugging in to USB-A port or the adapter. It also has both 6.35 and 3.5mm jacks for the input as well as all of the outputs - really nice design, especially for us as we have some phones that have the large base plug and others that use the small "Smartphone" jack - yes you can use adapters but then you have socket leverage, which risks breakage, as well as another possible noise source.

It worked ok but there was a lot of noise in the circuitry for this. Being zoom I expected more then $60 buys

Duro un par de meses, de repente dejó de emitir sonido. Lo usaba junto con una h4n. Ahora esta guardado en su caja, no sirve para nada, un desastre