I began to despair from having a sound insufficiently strong flat with my Iphone and Ipad, when I found out, according to my web surfing, this amp. Classical or jazz, I re-discovered my favorite works. Powerful sound, light, which gives rise to all the instruments, brought joy to my ears 68 years. Rap, metal and others are not my cup of tea, so I have no judgment, but for classical and jazz is bluffing. An unqualified yes to this little thing well presented, with a "knob" as in time, very practical. Three times yes, buy it you will be surprised.
