The key to listening centers and group sound fields is the jackbox, the distribution point to the headphones. Califone gives more attention to this mini four-position stereo unit with silver-plated contact points for a solid connection and moisture resistance, individual volume controls, 3.5mm plugs and rugged ABS plastic housing for durability.
World’s smallest 4-person jackbox for classroom portability and versatility
3.5mm input with individual volume control and stereo sound
“For connecting multiple headphones to computers, stereos, CD players. All you have to do is to plug the earphone into the jackbox and then plug the jackbox into your audio source. Volume controls are included on the jackbox. This device comes in handy for several students playing a video game or for a group of students working on a project on one computer.” The Gadget Girls Media Review powertolearn.com, 9/25/03
A: Yes, the DVD50-PLC learning center can be used by more than one person using an audio splitter for 2 people or a mini jackbox to expand for up to 4 people.
A: A plug connects the jackbox to the media source such as a media player. A jack is the receptacle for the plugs (ie what you connect your headphone to the jackbox with).
A: The Mini Stereo Jackboxes 1114 series offer 3.5mm jacks, and it includes a detachable cable with a 3.5mm plug for connecting to a media player. The regular size Stereo Jackbox 1210AVPS offers ¼” jacks and both ¼” and 3.5mm plugs. It also features an additional 3.5mm jack on the side for daisy chaining purpose, which allows you to keep all 10 jacks on each jackbox for headphones when it’s necessary to daisy chain multiple jackboxes.