Hi Jack Reading the technical information from the link to your question "what is this?" indicates a small amplifier. It is using stereo-microjack plugs (as the headphone one on the iBook) to speakers, line connectors "in" and "out". Translation: you can get "sound into" as well as "sound out" from the iBook via USB. Line-connectors are the same as found on the rear of an ordinary amplifier to select things like CD-player, sound from DVD, receiver and in old days taperecorders and phono. As I see no indication of software needed, my quess is that audioCodecs or CoreAudio components is found on the CD. As with QuickTime some quality might be found here. But I would be surprised if we're talking HI-FI-sound on this small piece. The measure of 15 dB is propably what the little thying can do at best, something like "musical dB". In real terms the amplifier is unlikely tom produce more than something like 5 dB, which is nice in nearfield monitoring (sitting with the iBook in front of you with small speakers attached to the amplifier). Compared to the build-in microspeakers on the iBook, alternatives may sound better (they ARE very tiny); compared to the build-in amplification from the iBook, this amplifier might sound better. The specs are slighly better than those from i iBook. But figures doesn't cover. My suggestion would still be to hook your iBook to your stereo, using a converterplug going from microjack (out of the iBook), plug a standard RCA-cable into the converterplug ending in the AUX RCA-plug on the rear of your stereo. It's much cheaper and the sound is far superior. Hope this will help you: by all means this amplifier is NOT intended for "huge speakers for little iBook". But your little iBook does sound great, connected to some kind of no-nonsense muscial equipment. Flemming >---------- >iBookList, a listserv for users and fans of Apple's iBook. >FAQ at <http://www.themacintoshguy.com/lists/iBookListFAQ.shtml> > >To unsubscribe, E-mail to: <ibook-off at lists.themacintoshguy.com> >To switch to the DIGEST mode, E-mail to ><ibook-digest at lists.themacintoshguy.com> >Need help from a real person? Try. ><ibook-request at lists.themacintoshguy.com> >---------- >Small Dog Electronics http://www.smalldog.com | Enter To Win A | > -- Canon Digital Camcorders start at $799 | Free iBook! | > >iBookPlanet.com | Visit iBookPlanet.com for the hottest > | iBook News, Features, Reviews & More. > > RoadTools $30 PodiumPad available at Apple retail stores, $20 Traveler >CoolPad at Staples. Both in white for iBooks at <http://roadtools.com> > >MacResQ Specials: LaCie SCSI CDR From $99! PowerBook 3400/200 Only $879! >Norton AntiVirus 6 Only $19! We Stock PARTS! <http://www.macresq.com> _________________________________________________________________ Tag MSN Hotmail med dig på mobilen http://www.msn.dk/mobile