Califone Blog

How long can I expect the battery in a PowerPro to last on a single charge?

All rechargeable batteries (whether in a computer, multimedia player, or elsewhere) first need to be properly charged before use and recharged after use according to the owner’s manual. For the PowerPro, the battery should be charged for at least 10 continuous hours before using it for the first time. Taking this step before its first use is the single most important thing that could be done to help the battery.

“Average” use of the PA (meaning the occassional use of one of the mics, off and on use of the CD or cassette player, and setting the volume output to mid-range) in a comfortable teperatre range, will give you 4-6 hours of use. If you drive the speaker harder than this (with volume at maximum, using both mics simultaneously, playing CDs continuously), it will reduce the usage time.

All batteries are effected by heat and high humidity. Using them in these conditions can also adversely effect the performance of the battery.

Finding appropriate audio equipment that’s easy to use can sometimes be a challenge, especially when it comes to projecting sound in a variety of settings. Between running around from one classroom to an auditorium or even an outdoor field, how can you figure out which sound system can best be utilized in each of those settings? When selecting a PA system that has to meet the diverse needs of a school, dance studio or an athletic department is the portable nature of such a system. (more…)

In previous articles we’ve covered different features and how-to’s of many portable and installed PA systems. This article will focus on the LINE OUT function and how it can be used to get audible sound out to your audience at a volume level loud enough for all to hear. (more…)

PA319
“The Presentation Pro PA319 is a portable wireless PA system that is ideal for classrooms and large-group presentation and features quick setup.”

Scholastic Adminstrator Magazine
November/December 2003

Supports literacy & classroom amplification initiatives.

Califone announced extensions of four current offers to now run through December 30th of this year. The specials cover a broad range of technology oriented products for use in a variety of classroom, computer lab, and library applications. One even includes free shipping on the company’s just launched Got It! clicker student response system which can be used to help data driven decision making. (more…)

Serving Audiences of Any Size

When you want to play music or address an audience without shouting, turning to an amplification system is the logical thing to do. With so many different sizes and types to choose from, it can be a bit daunting knowing which one will do the job best. But then again, why stop at just one? Part of successfully amplifying sound has to do with ensuring that your collective audience can hear what is being emitted. But with just one portable speaker, regardless of the setting, usually those sitting closest to the speaker benefit the most. However, if you manage to incorporate multiple speakers throughout the environment, then all of your listeners will be fully focused on your presentation. You no longer have to choose between portable speakers, simply use them all! (more…)

If you’re new to working with portable PA gear or simply not used to it, some of the buttons, plugs, or switches may at first seem confusing or even a little daunting.

This series of non-sequential articles introduces many of them and explains how they work so you can sound your best. (more…)

18th in a series about portable PA gear and how to use them.

There are bigger, heavier speakers and there are lightweight hip-worn ones. Whether you’re in a classroom or guiding students on a field trip, a larger portable speaker can be too limiting or inconvenient. In each case, obtaining and keeping your audience’s attention is what is most important and can mean the difference between a mediocre or superior presentation. So what can you do? (more…)