LZSIG Headphone Amplifier 4 Channel, Metal Stereo Audio Amplifier with Bass Boost, Mini Earphone Splitter with Power Adapter, 1/4" & 1/8" TRS Headphones Output & TRS Audio Input, DC 12V

This amp is amazing. It feels high quality, is slightly heavy, and supports both my 3.5mm and 4.4mm connections. It has a bass boost option that works as intended, and a mono/stereo separation. The knobs feel high-quality. I am able to bring the input and output gain considerably high without noticing any static or clipping. Although only rated for 100 ohms, it easily powered my 250 ohm DT 770 pro set of headphones. It looks professional on my desk, and performs and feels professional, too. Overall excellent value!

My pc wasn't producing enough volume to my earphones. So i decided to research and the best solution was a small amplifier. This was affordable and works for multiple aux devices. The beautiful design and knows make it a great and professional experience. My first amp and fell in love. Great quality work. Will definitely buy from this brand seller. Recommend it for those looking to get more volume out of our machines. Beautiful tones and no static. Perfect little amp.

I need the audio coming out of a laptop to go to two separate and unique headphone sets for live monitoring. This worked perfectly. The knobs feel good, the body is metal and has a good weight, no static or buzzing, and having both 1/4 and 3.5mm jacks for each output is convenient. The only wish I have is that the power input could be USB C for flexibility as the included power supply has a fairly short cable; otherwise it's exactly what I needed.

Pros: has 3.5mm and 1/4" input jacks. tiny footprint. comes with an AC adapter. Has a lot of audio gain. No hiss or hum. Cons: None so far. I tested the "hiss" by inserting a headphone into one of the outputs without any audio signal, and turned the volume up all the way. Maxed-out. Barely detectable hiss. I mean, "nothing". Great little amps for the money. No regrets.

Works amazing. Not sure the power output through the headphone jacks can overpower the input of your Bluetooth speakers so be careful. I ran everything on 50% including my speakers, pushing them very hard sounds amazing speakers almost started clipping. Great for controlling the volume on independent speakers, including a sub. If the pre-powered amplifier in the back of my speakers was more top-notch it could handle the power level of the audio signal being sent into it.

This has been a great little box. It does exactly what it says it does. It's super easy to setup and use. It sounds nice. Accepting both size TRS adapters is nice and has come in handy. I have no use for the Mono feature, but it has one, and I can see where it might be useful to someone else. This is probably my favorite piece of budget equipment.

I am hard of hearing and really could not hear the YouTube videos. With this headphone amplifier I can now hear the videos very well. I am extremely pleased with this item.

The LZSIG amplifier is a good unit, with good construction. I had bad 60hz audio hum with this unit initially. I thought the unit was bad and ordered a replacement, but still bad 60hz audio hum. I tried another matching power adapter as another reviewer mentioned = no improvement. I finally found the source of the hum = my audio cables and/or the routing of my audio cables. The 60hz audio hum was coming from other cords (for example, power cords...) which were alongside my audio cables. I made sure my audio cables were all shielded, and I also routed all of the audio cables so that they were not running alongside or touching other cables, particularly power cables. HUM ALL GONE! BEAUTIFUL! GREAT UNIT, VERY RECOMMENDED! If you have audio hum, suspect and check/reroute your audio cables.

Genial para monitoreo, su botos de Mono/estereo te ayuda mucho cuando conectas audífonos con micrófono, ya no necesitas cable especial.

LZSIG Amplifier works for about 20 minutes and starts to make noise. If that could be fixed it's cool little Amplifier. sorry

Un Amplificador de señal de monitoreo que se debe de tener en cualquier home studio.

Compre este amplificador ya que el anteriore que tenia, un Behringer HA400 empezo a fallar de la nada, derrepente no sonaba, derrepente si, o metia mucho ruido. Empecemos con lo bueno: Un feature que me llamo la atencion es que tenia puerto USB-C, y que funcionaria con baterias portatiles. Decidi hacer una prueba de reproduccion continua, para ver cuanto duraba, y estos fueron los resultados: Un iPad tocando musica, conectada al amplificador, y esta tenia 4 audifonos conectados, con las perillas a las 12 del reloj y con un Powerbank de 5000mA. Esta empezo a reproducir a las 9 am exactamente y se apago pasaditas de las 7 am, es decir que tuvo un total de 22 horas de reproduccion continuas. Inicialmente pense que duraria aproximadamente unas 4 horas, asi que supero totalmente mis expectativas. Viene con cable y un cuadro para corriente. El cable pudiera ser mas largo, pero no es un dealbreaker. El boton que es Stereo/Mono esta un poco "flojo" pero una vez presionado. Para musica, la funcion de MONO no sirve porque practicamente te invierte la fase y se escucha como "lejos" Lo MALO: Suena MUUUUY MAL! Pense que eran mis cables y probe con varios, tanto de corriente como de sonido, etc pero no, es la caja que no sirve.Si presiones el boton a Stereo, suena mal pero suena, en Mono, suena mas mal y extremadamente bajo. Compare el sonido directo del iPad y parecia que me habian quitado unos tapones y cerilla haha Un cambio totalmente drastico Lastima, prometia el aparato este pero pues no siempre funcionan. Espero que esta informacion les sea de ayuda.