I wanna do it for my entire band, one for each person.   I could take it from the mixer. But what I intend is also make it for jams and training. Example: Just plug in the bass on one channel, and a signal from the cell phone, laptop or mixer on the other and play. We will probably use some...

Thanks Avro_Arrow,   I thought 3.7 V wasn't gonna be enough, but since my cell phone is supplied with 3.7 V and have a good sound...   Also I read somewhere here on the forum that 200 mW is enough to blow your ears, and on the IC datasheet they say that with about 3.5V we could take the 200...

Hi, I'm new here, so I'm sorry if I'm posting on the wrong place.   I want to make a headphone amplifier, dual channel,  to plug in directly an instrument, like a guitar or bass, and a line signal on the other.   On my searches I found the LM4880 from Texas Instrument, but searching on the...