Audio Systems: surround sound speakers, max spl, black lacquer

Question
Thanks. ELITE AUDIO EA-2875 is the brand and model.
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-----Question-----
I have a set of tower speaker. They have four connectors on the back. Two red and two black. They our for a banana connection. Do I have to use all four for the speakers to work and if so how. Thanks
-----Answer-----
All depends.  Sometimes the are biamped products and require a separate amplifier to drive the woofer drivers.  Other times they are different connections to the crossover network. (In fact some use external crossovers and you must have additional components to drive them properly).

Here is my suggestion:  Go to the manufacturers web site and download the owners or operating manual for your model and find out what connections they are using.  

If they are Duntech products, let me know as they are very special and require certain amplifiers to drive them.

OR: you can give me the make and model and I will tell you exactly how to wire them up.

WARNING: Dont' hook them up until you know for sure which connections go where.  Damage can be done, for example, if you put a lot of low frequency power into the tweeters.

Cleggsan


Answer
Here are the specs on these units:

SPECS:
ELITE AUDIO EA-2875 DIGITAL SERIES SPEAKERS
The Professional Choice
Designed and Manufactured in the USA
Has Won Numerous Audio Awards
Set of two Matching Speakers

Specifications Power Handling: 30-400 Watts Each
Front Drivers: 2X4 " Aluminum Finish Cones
Side Firing Driver: 1X10 " Long Throw Sub-Woofer
Tweeter Driver: 1X1 " Silk Fiber Dome
Frequency Response: 28 Hz - 20Khz
Biwireable: Yes
Sensitivity: 91dB/ 1 Watt / 1 Meter
Impedance: 4 Ohms
Max Spl: 107 dB
Cabinet Design: Bass Reflex Rear Ported
Dimensions: (H x W x D) 43.5"x8.2"x15.2"
Weight: 50 Lbs Each
Finish: Piano White & Piano Black Lacquer
Digital: Custom Crossover Circuitry


SO: These units are biampable; that is why  the two sets of speaker connectors.  If you are going to biamp them you must have two stereo amplifiers.  One drives the upper drivers and the other the woofer/low frequency radiators.

THEN: If you are going to drive them with one amp, you must connect the bottom two and the top two connections to gether.  In other words, connect the two blacks together and the two reds together and connect to the output of the amp conventionally.

Fire them up gently:  Volume control at minimums, then turn on the amplifiers and cranking up the volume very slowly until you are sure you have them connected properly.

These were around $1500/pair when new, but they are no longer manufactured and you can buy them on places like eBay for under $500 now days.

I don't know about their sound quality, but they look good.

Best wishes,
Cleggsan