Behringer MICROAMP HA400 Ultra-Compact 4 Channel Stereo Headphone Amplifier

I got one of these to allow my wife or I to listen at whatever volume we want while keeping the TV speakers muted so the other person can sleep. It works just as I wanted and expected it to. The only problem is that it uses 1/4" TRS jacks for the input and outputs. This is fine if you're using it with standard recording studio/musician's connectors and cables, and of course, that's the market this amp was designed for. I think the manufacturer would sell a TON of these if they made a version with RCA jacks for the input and 1/8" TRS jacks for the headphone outputs. That would match what most consumers will have coming from their TV these days and what they'll find on their headphones/earbuds. So the issue becomes finding 1/8" Female TRS to 1/4" Male TRS adapters that aren't total junk. I tried a few different ones found here, and had extremely poor results from most of them. Most didn't make a secure positive mechanical or electrical connection. It's hard to imagine how they can even sell most of them! But again, this is NOT the fault of this little amplifier, it's just something to be aware of. I finally ordered some adapters from Parts Express (a seller who does sell here on Amazon), but I had to get them directly from that supplier since they didn't seem to have them available here on Amazon. I hope I can say that on here without it being censored or causing friction. Those adapters work perfectly. They fit tight and make solid electrical contact. With that problem taken care of, the unit does just what I need it to do, and the sound quality is plenty good for TV viewing. I'm not going to say that it's an audiophile-grade headphone amp, but it's really not bad at all. Having independent volume controls for up to four people is nice so everyone can use a setting that suits them. As I said, the main use for me is so either my wife or I can watch TV without disturbing the other person if they're sleeping or talking on the phone, etc. We just keep a couple pairs of headphones and this amp at our usual watching position, and it's very handy. I've seen complaints on here about buzzing or receiving AM radio broadcasts. I suspect that in all of these cases, the true culprits are either poor electrical contact when using crummy adapters or cables OR they've managed to allow the metal case of this unit to come into contact with something that's grounded (but not well) to another piece of their equipment, thus creating a "ground loop". Ideally, you will keep this unit's case electrically isolated from anything that might create a ground loop back to your audio source. With this amplifier and your headphones "floating" electrically from everything else, you will not likely get hum or buzz. And with good, solid electrical connections (avoiding poor adapters, etc), you will likely avoid any reception of strong AM radio signals in the area. All of this would be true of any amplifier. The sound quality is perfectly fine for an amp of this price range. It drives various headphones to levels far above anything I've needed. It seems to have fine frequency response and reasonably low distortion. The volume controls move smoothly and create no static. And I've been using it for a few years and had zero reliability issues. So I give the amplifier five stars for doing what it is supposed to do quite well.

Let me start with this amp is great. It is loud and clear. This is my first behringer product ever, I didn't like behringer before but this changed my mind on some of there products (not on there mixers, I'm am a Mackie freak!) We use this amplifier to power a pair a headphones for a drum monitor and it works well, we use a extension cable (25ft) to plug them in but I am worried it could clip because it needs to be loud. It's a shame them couldn't of put a clip light on each channel but the get very loud so it isn't too much of an issue. Power: When they say "4 powerful headphone amplifiers" they really mean POWERFUL!!! I was 3 yards from the headphones and it turned it up and I could hear it pretty good for being 3 yards away so thats powerful. When you are using them in a drum application you need a lot of power and this amp is perfect. I'm worried the headphones will blow!!!! Only problem is it dosen't have a power switch so you have to unplug it to turn it off but it dose have a power light. Sound: This amp will get very lout without causing any extra hum or his. It is very clear for being a behringer product. As it says it is stereo. Connections: This amp has 1/4 trs connecters for all connections (not standard 3.5mm headphone jack you would find on your iPod or computer) If your headphones have a 3.5mm jack (like on an iPod) you will need a 1/4 trs to 3.5mm adapter like this: 3.5mm Stereo Jack To 1/4" Stereo Plug (Black) You will need a 1/4 cable to connect it. If you are connecting it to a headphone port on a computer or iPod or something you will need another one of those adapter and a 3.5mm cable. There is many ways you could connect this. Plug it into a line-level source headphone-source One mistake I made was I only had a mono cable (only using the left side) so it only played in the left side. Make sure you have stereo adapters and cables (balanced) Overall: Pros: Powerful. Clear. Lightweight. Compact. Cons: No power switch. No clip light.

家に丁度、アンプのピンジャック出力から取れるコードがあったので入力に入れてみました。すごくいい音です。満足しています。

Great little item. I needed it to boost the headphone out on my CD/DAB radio. Really improved output. Easily to set up and no noise. It's not what it was designed for really and so my set up can't be classed as HiFi but it's good enough for me.No distortion, easy to connect.

powered my dt 990 pro 80 ohms

Si tratta di un regalo. Ho sempre acquistato, ormai da oltre 25 anni, ampli cuffie Behringer. Questo invece mi ha sempre insospettito per le dimensioni. In realtà per il costo siamo di fronte ad un buon prodotto. Per quanto lo possa aver testato, con cuffie a bassa impedenza intorno ai 60/100 ohm, si comporta bene. Non scalda anche in presenza di più cuffie a volumi sostenuti (intorno al 75/80% del pot)e a questi livelli non rilascia particolare rumore di fondo. I potenziometri sono sufficientemente morbidi e precisi. Risulta robusto ma leggero e i connettori sono stabili. In sostanza risulta un prodotto affidabile. Considerato che dopo Behringer ho deciso di passare a Lake People, al modello G103, con il quale siamo ad altri livelli di costruzione e costo, nel paragone il piccolo non sfigura. La risposta in frequenza è leggermente V-shaped ma mantiene comunque una discreta definizione dello spettro ed un discreto stage. Non ci si può aspettare la prestazione del Lake People che pilota anche cuffie da 600 Ohm senza battere ciglio ed al massimo del volume. Ma in termini di pressione ottenibile, considerato il piccolo alimentatore, ha dato buon volume anche ad una AKG K240 Studio (made in Austria). Ho dato le 5 stelle in virtù dell'eccellente rapporto costo/prestazioni. Se siete alla ricerca della qualità hi-fi, o di quella da monitoring in studio di registrazione, non potete pretendere che intorno ai 30 euro troviate la soluzione definitiva in questo ampli. Se invece avete un home studio essenziale e la sola uscita cuffia della scheda audio, e magari avete bisogno di uno o più ascolti oltre al vostro, questo ampli, statene certi, non vi deluderà.

Solid microamp som gör jobbet förträffligt.