good for listening to music in conjunction with newer portable device

I am basically satisfied with the device, sound quality is good and the cable is adaptable to the needs of different cassette deck.
but you have to fully turn up the volume of the device already angestöpselten to obtain the same volume as in the normal radio or cassette hearing, battery save not because there's, otherwise it roars namely quite well. my old disk-one is completely unsuitable for this purpose, for example, the works ipod well, the small Sansa MP3 player finds it difficult to produce the required volume.
just listen to the radio play I have at least difficulties.
device ansonsten- good, had its six-euro legacy finally disposed grateful.