YAMAHA A-S501BL Natural Sound Integrated Stereo Amplifier (Black)

Me tomé mi tiempo para probar este amplificador. Llevo más de 2 meses con él, y puedo decir que es una excelente opción para un sistema HI-RES, suena excelente, y la nitidez del sonido es maravillosa. Lo uso con unas bocinas de torre Polk XT70 y las "llena" completamente. Para una habitación de 4x8 metros sinceramente nunca paso más de la mitad del volumen que da el amplificador, por lo que después de algunas horas de uso apenas y se calienta, usandolo a 8 ohms, aún así opte por comprarle un extractor de aire para disipar el calor. Me encanta el hecho de que se pueda conectar un segundo par de bocinas, y hacer sonar las 4 bocinas al mismo tiempo, o elegir a qué canal mandar el audio.Cómo tip, para sacarle el mayor provecho a este amplificador es muy importante que todo el sistema sea de alta fidelidad: audio lossless, DAC externo, cableado y bocinas. También recomiendo comprar un regulador de voltaje de alta capacidad, ya que acá en México existen muchas variaciones de voltaje que pueden afectar al equipo.Sinceramente, estoy muy feliz con esta compra, ya que por primera vez puedo escuchar música en alta fidelidad, es como pasar del blanco y negro a un mundo lleno de colores. YAMAHA es sinónimo de calidad, por lo que lo recomiendo 100%, sin ninguna duda.

Me lo recomendó un amigo que al mismo tiempo también se lo compro su cuñado. Lo traigo con unas Jamo S809 + S8 y ahora estoy comprando un subwoofer SPS pb16 ultra para probar todo el conjunto.Sorprende la calidad y fidelidad costo/beneficio es fantástico.Todo sale por una tornamesa Technics y no veo las horas de poner este ampli a trabajar a tope.Nada digital, me ha encantado volver un poco el sentimiento atrás de cuando era pequeño.materiales de primera calidady muy buen hi-end!!!

What a great piece of gear this is, I retired a long in the tooth Jolida tube amp in desperate need of a full recap for this. No hum or distortion out of this unit, just puer smooth power. Pushes the Polk XT70s beautifully. Also rear B+W bookshelf speakers and never breaks a sweat. No cooling fan required.Im Running it through a Yamaha EQ70 equalizer. And it just pushes clean quiet power.The amp functions flawlessly, with a soft mute feature. When a LP is done press mute, the volume lowers to a just audable level, push it again when your ready and it slowly ramps up to the previous preset level.There is no blutooth but thats an easy fix for 20 to 30 dollars buy a add on box and plug it in.Overall value is very good on this. You get a lot of head space for your buck.Im Running Polk XT70s and B and W 603s all 8ohms ,the rear swith set to high power, and this amp is 100% clean, powerfull and dosent even flinch or get warm.

I chose this amp for my PC-desktop. Paired with a HIFIMAN EF400 DAC, HIFIMAN Ayer Stealth headphones, NHT Super-zero bookshelf speakers and an SVS SB-1000 subwoofer, I accidentally wound up with an audiophile setup for my PC.It replaced a Logitech 5.1 THX DAC/speaker system I'd been listening to for 15 years. I was also listening to Sennheiser RS-180 wireless headphones at night. It was time to explore wired headphones, and so began the DAC and the Yamaha amplifier.The clarity and detail was a big improvement and the overall listening experience was more than I imagined it could be. I thought my hearing was getting bad. It turns out my tastes have changed somewhat over the years and now my "old music" began to sound much better with the new hardware. I found notes that were previously hidden by my old hardware.I like the layout of the controls, and although the Yamaha is kind of large for my desktop, it is conveniently placed right behind my keyboard. I play my music through Plex and Foobar2000 and get accurate playback on all musical selections.Windows feeds usb-audio to the DAC which then feeds line out to the Yamaha amp which then powers the 2.1 speaker configuration. The sound is extraordinary at any volume level. The NHT speakers sit an arm's-length away but the sound comes from the center of my keyboard. Lots of remaining headroom as the amp never reaches 50 percent of maximum power. Best of all is the clear, powerful and accurate pleasure from this popular amplifier.This is the best change I have ever made to my lifelong PC listening experiences.

I was looking for a new/modern amp to add to my rotation of vintage Luxman and Sansui amps. Something that sounds good and is dependable when my vintage stuff is on the bench. I first tried the Cambridge AXR 85 and sent it back right away. It sounded way too thin. I need something with a phono stage, line level inputs for Bluetooth, tuner input and A/B speakers jacks.In short, this amp is superb. Blew me away right out of the box and will hold its own with my Luxman and Sansui amps. The phono stage is is very good. My Bluetooth receiver sounds great through it, the speaker jacks are solid. I really dig that the loudness is on a dial/pot and adjustable. Full up on “flat” and the sound is clear, present, and defined. As the loudness is dialed back the sound warms up, almost tube like (think vintage Sansui) but doesn’t lose any presence. The pure direct button is also cool. It isolates whichever input input/signal path is being used and produces a clear “pure” sound.It is made very well. Huge heat sinks, smooth knobs and buttons, very clean and simple. Mellow yellow LED lights.I’m listening in a 20x32 room and the sound fills the space very well at all volumes. It doesn’t sound like the stereo is “over there”. The soundstage is rich and encompassing. It drives my vintage ElectroVoice Interface C speakers extremely well. These are very large yet efficient speakers.Completely blows the AXR85 away. Not even close. Onboard Bluetooth would be cool but so what. I ordered a subwoofer as it has a subwoofer jack. Not sure I’ll need it for music but I’ll likely hook up the optical to my TV for some surround now that I have the option.At $550 this thing is well worth it. I’d be curious to hear a better amp at this price point if one exists.