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Old 15th March 2013, 02:06 AM   #1
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Default Non-DIY Yorkville

Hey guys,

I'm new to speakers and putting together a PA system to do kids dances at the church. Not ready to build my own yet, but plan to in the future.

For now, I have a Yorkville TX9s subwoofer to fill the bottom:

Yorkville Sound: TX

Specifications

System TypeRectangular Subwoofer Active or PassivePassive Program Power (Watts)1700 Nominal Impedance (Ohms)4 Sensitivity (dB @1Watt/1m)98 Max SPL (dB)131 Frequency Response (Hz +/- 3db)30-130 Crossover Frequency (Hz)
LF Driver(s)2 x 18 inch, cast frame Inputs - Speakon 4-pin2 Wheels2 Bar Handles8 Enclosure Materials18mm / .71 inch - 13-ply baltic birch plywood Grille16 gauge perforated metal Covering / FinishBlack Ultrathane Paint Dimensions (DWH xbackW, inches)24.8 x 24 x 51 Dimensions (DWH xbackW, cm)63 x 61 x 130 Weight (lbs/kg)191.8 / 87

My question is: How much amplifier do I need to drive it?

A friend has a QSC RMX2450 for sale for $450. Good amp? Good price?

Thanks for the education!

Dave
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Old 15th March 2013, 06:46 PM   #2
Mikey p is offline Mikey p  Canada
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The QSC RMX2450 is an excellent amp and a good match for the TX9S. For $450 the amp needs to be fairly new and in excellent shape.
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Old 15th March 2013, 10:07 PM   #3
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How can I tell the age?
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Old 16th March 2013, 01:44 AM   #4
Mikey p is offline Mikey p  Canada
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If your friend bought it new he should know.
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Old 16th March 2013, 02:15 AM   #5
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He didn't: He's only had it about 6 months, bought it used, needs the money. Would the serial number tell us anything?
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Old 16th March 2013, 03:22 AM   #6
Mikey p is offline Mikey p  Canada
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Try the amp with your sub and work it hard, if it has no issues then you're good to go. And offer him $400.
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Old 16th March 2013, 04:12 AM   #7
Mr. dB is offline Mr. dB  United States
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Location: Arkansas
If you have a single TX9, and run the 2450 into it bridged mono, you'll have 2400W driving a speaker rated to handle 1700W. That's good for headroom, I think you'll be okay. Will you be using an active crossover, and if so, does it have output limiters?
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Old 16th March 2013, 04:56 AM   #8
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"Will you be using an active crossover, and if so, does it have output limiters?"

Ya hert yer what?

We have 4 Mackie 1530s (2 of them are "z" units), a Mackie CFX12 mixer, a laptop running Traktor Pro 2.5, and the TX9S. I know we need an amp for the sub, but I have no clue what else we need for a basic church dance set-up.

ANY advice is more than WELCOME!
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Old 16th March 2013, 08:51 PM   #9
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Here's one for $379.

Used Qsc Rmx 2450 Stereo Power Amp
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