Crossover System
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 NEW 6 CHANNEL ELECTRONIC CROSSOVER SYSTEM CR73G  US $51.97
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 Lanzar 4 Speaker Component System 240w w Crossovers US $49.94
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 New Pyramid CR73G 6 Channel Electronic Crossover System US $47.49
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 NEW 3 WAY 6 CHANNEL ELECTRONIC CROSSOVER SYSTEM CR79G US $43.98
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 Pyramid CR73G 6 Channel Electronic Crossover System US $40.07
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 Legacy LXR 6 Electronic Crossover Network System US $39.99
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 JVC HX HS50 525 90 Watt Component Speakers Tweeter Crossover System US $38.16
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 Pyramid CR73 6 Channel Electronic Crossover System US $34.99
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 5 Blaupunkt Tweeter System with In line Crossover US $33.35
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 Rockwood XR 21CRX Electronic Crossover Network System XR 21CRX US $29.00
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 Pyramid Audio Cr79g 3 way 6 Channel Electronic Crossover System US $25.13
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 Optimus 3 way electronic crossover system US $24.99
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 Boston Acoustics 2 way Component system with crossover NO RESERVE US $22.50
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 MB Quart 2 Wege System Passive Crossover Used US $19.99
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 BOSS Audio Systems Electronic Crossover US $5.00
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 VEHICLE AUDIO SYSTEM DIGITAL 360 WATTS DOME TWEETERS STEREO BUILT IN CROSSOVER US $1.99
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 Optimus 3 Way Electronic Crossover System US $.99
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Do I Need a Karaoke Amplifier?
A karaoke amplifier is a powered amplifier designed specifically for the needs of the avid karaoke equipment owner. While an amplifier can be designed for home use, most are for karaoke DJs. An amplifier for a karaoke machine makes it easy to setup and take down a karaoke setup and you get more features than a traditional PA system.
These are all features that any karaoke DJ would love. Karaoke amplifiers are also commonly referred to as hybrids because they have the features that are also found on many pre-amps.
One feature is the ability to send audio signals from more than once source; this is due to the multiple inputs. If you have an iPod and a karaoke machine, you no longer need a mixer because you can use your amplifier. Many of these units also include a radio tuner.
A typical karaoke amplifier has enough power to run four or more speakers efficiently. For a good karaoke setup, you will need 2 main speakers, at least one subwoofer and at least one monitor speaker. The main speaker and subwoofer work together to get all of the sound out to the audience.
The karaoke singer can hear themselves through the monitor speaker. The best karaoke amplifiers have a built-in crossover, which means that the low frequencies from the subwoofer will only go through that subwoofer; this helps to keep them separate from the mix. Since higher frequencies don’t need as much power, you can run the monitor and main speakers on the same channel.
You must match your amplifier to your speakers. You want to make sure the speakers can handle more power than the amplifier can put out, but not by too much. For example, a 400 or 450 watt speaker is needed for an amplifier that can put out a total of 300 watts.
If the amplifier is able to put out eight hundred watts, then an individual speaker must be able to handle one-thousand. However, when running that many watts, you will likely be running multiple speakers. In this event, you can add the wattage of each speaker and combine them together to determine how much they can handle as a pair. For example, an 800 watt amplifier can have two 450 watt speakers or another similar combination like four 200 watt speakers
Be careful when buying a subwoofer because most come in at 1,500 watts and you don’t want to run it off a simple 300 watt amplifier. If you do, you won’t get the best sound quality and may even burn out the amplifier because more power is needed than what is being provided.
Crossover for home speaker system.?
I have a mackie poweramp and a sub, and am getting a speaker soon, but I dont know if the power amp can power both the sub and the regular speaker. The amp can power both seperately, it has a sub switch, but would it work with the amp powering the sub in one channel and the regular speaker in the other? I think I might need a crossover, which I have no idea how to use. If I do need one, could someone explain the basics of how to use it and stuff? Thanks for the help.
to matthew: thanks for the answer, but I don't think the sub switch lowers the ohm's. The manual says: "If you bought the M1400i amplifier to power a subwoofer system, you just saved yourself the cost of a crossover. The amp has an active Subwoofer filter built in. You can use it to reproduce the function of a crossover." Then it just tells about the frequency switch and stuff. I think the sub switch just turns off the limiter so that it can amp low stuff, i don't see anything about the switch lowering the ohm's.
No it cannot, the Mackie poweramp has that sub switch to lower the impedence load from a standard 8 ohms to 4 ohms (the normal impedance of subwoofers and increasing the output power to the sub).
You do not want to hook up a sub and a speaker because it will give mismatched impedence to the speaker and cause the amp to run way hotter than it needs to.
The crossover is done either in the sub or the recievr, most people adjust the crossover to 80Hz in the reciever and have their speakers set to small, this tells the reciever to send all frequency signals above 80Hz to the speakers and automatically sends the lower bass frequencies (below 80Hz) to the subwoofer.
Now most subs are powered and have a built in amplifier, so you won't need the Mackie amp at all for the sub. The amp shoulc be used if the sub is passive, in which case you will need a seperate amp to drive the subwoofer.
I would use the Mackie amp to drive a pair of speakers and use the subs interanl amp (if it has one) to run the sub, and set the subs crossover to it's highest setting (normally 200Hz) and adjust the crossover in the reciever to 80Hz, this way your not using double crossover which will effect certain frequencis and cross each other out (giving you no sound).
Canon announces EOS-1D X: full-frame 18MP sensor, 14 fps, 204,800 top ISO, $6,800 price tag (Engadget)
Stick a piece of gaffer tape over the unmistakable X, and Canon's latest EOS-
1D pro-level camera will look virtually identical to every 1D model that came
before it. But once you flip up the power slider, this new king of the jungle
will hum like no other. Canon's phenomenally powerful EOS-1D X really sounds
like the DSLR to rule them all. Its 18 megapixel full-frame sensor uses
oversized pixels to battle noise and is supported by a pair of Digic 5+
imaging processors, which also help drive a 61-point high density reticular AF
system, a top ISO setting of 204,000 (51,200 native), a 252-zone metering
system, a 14 fps JPEG (or 12 fps RAW) burst mode and a built-in wired gigabit
LAN connection, for remote shooting and image transfer. The camera's curious
single-letter name represents a trio of industry milestones: the X is the 10th
generation Canon professional SLR (dating back to the F1 in the 1970s), it's a
crossover model, filling in for both the 1D Mark IV and 1Ds Mark III (which
has been discontinued), and, well, it sounds to be pretty darn "Xtreme."
The 1D X is being marketed to ...
CrossOver Systems
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