ammoon 4 Channels Mini Audio Stereo Headphone Amplifier HA400 Ultra-compact with Power Adapter

I bought this to originally drive my Sennheiser headphones which sounded terrible at first through my logitech sound systems headphone output. I bought this headphone amp just for those headphones alone and its now outputting to my headphones and logitech sound system as well as other headphones when my partner joins in on conversations.The audio through this amp is crystal clear, with nice and crisp audio profile. It really has improved my headphones overall sound adding decent bass and improving the mids and highs. For the price its a steal, I did a little research and its the same amp as the behringer version (EXACTLY THE SAME) it has 4 seperate sound chips so you can tweak volumes for each output without hindering the other outputs. It is made from metal with plastic volume knobs, the only downside is the input/output connections are normal silver and not gold plated but in all honesty that really isnt a big issue it sounds great I dont get any crackling when adjusting the volume, no background noise, no hissing when at loud volumes, it really is crystal clear.I bought these 6.35mm male to 3.5mm female adapters to use with this headphone amp and like the amp I would recommend them https://www.amazon.co.uk/gp/product/B07SK12B6F/ref=ppx_yo_dt_b_asin_title_o07_s00?ie=UTF8&psc=1I highly recommended this headphone amplifier save yourself a few quid and buy this one you will not be disappointed, its a solid unit with fantastic sound output for a small price.

Bought two of these. One of them had a faulty channel (dead on one side). The other one blew up at the wall within minutes of use. Unbelievably bad quality. And dangerous. Have to question the legitimacy of the other (positive) reviews here.Have used the behringer equivalents of these for years with no such problems. Avoid these knock-offs.

I used it with Beringer UMC-202HD, connected with 3 meters long balanced cable. Maybe because of a cable length - sound from the amplifier were noticeably less detailed. Overall build quality seems poor. Forth’s chanel’s volume nob when turned had uneven resistance. At the moment then headphones were plugged to the socket it loudly discharged (better not to wear them while plugging in). I am returning this and most probably I will be looking for similar device that would have optical input what should be able to retain audio quality.Pros:4 headphones can be connectedGood priceCons:Poor build qualityNo power buttonSound quality gets lowerShort adapter cable (~90cm)

So, this thing will give you four headphone channels with independent volume control. I use it to feed a set of headphones and also into a mixer from an electronic drum kit for when I am doing Zoom music lessons.First of all, I want to be clear, this is not audiophile stuff - the top end is a little lost and the bottom end can be a bit thumpy and over drive some diaphragms in some less bass capable headphones, but given that I am delivering lessons and not attempting to record the next Number 1 with Dua Lipa. and for the price, this is an excellent piece of kit for the job.I recommend this product to fill gaps such as feeding more than one output.

It's an almost identical replica (save the printing on the case) of the Behringer equivalent device (which I was replacing because a channel had died). I guess these are manufactured by the same company then sprayed and badged as needed. I think it actually looks better than the silver Behringer unit but only time will tell if it lasts longer! From a functional point of view it provides clean enough signals. Build quality seems fine. Recommended for small home and project studios needing to send the same mix out to multiple headphones at (potentially) different levels.

Brilliant! I can get really good volume across all headphones plugged in. This really was a surprise considering the brand/cost. I only track with one or two vocalists so 4 outputs is plenty. Seems to colour sound slightly (brightens in my opinion) but who cares then you're tracking.

I work as a freelance videographer and this product almost works as a spliter but for studio headphones. Simply plugs into mains and then into whatever input your PC needs for headphones (headphone jack) It is worth picking up some jack adapters from 1/4 inch to 1/2 inch however as these ports are only 1/2 inch and in my situation, I work with people who may not have studio headphones and I do not have any spares so if they would like to sit and work on an edit or review footage with me, it is far easier to plug into this system then have independent control on your headphones personally.

I bought the 4 way headphone amplifier: Very nice unit... decided to peek inside, as other reviewers thought it was simply a splitter ... but there are indeed x4 'chip' amplifiers on a printed circuit, it's very neat and superbly constructed in steel No plastic parts other than the 1/4 inch sockets and volume knobs. Main thing... it has no noise . For the price, it really is superb. I am using it for my family (x4 of us) to hook up headphones to a projector so we can watch films without worrying about neighbour noise.