1 amp 4 speakers

[paul1404]

Guys me again sorry bit thick ;(


would the below amp be able to handle 4 x 500w speakers
QLX Pro PA1000 Amplifier + Flight Case

Professional High Grade Power Amplifer With Free Heavy Duty Metal Full Flight Case With Lids Front & Back, And High Quality Signal Lead.

Built To The Highest Specifications.

Features :-

Balanced XLR Or Jack Inputs
Input Gain Selection : 0.775V / 1.0V / 1.4V
Stereo / Mono / Bridge Mode Operation
Input Ground Lift Selector
Fan Cooling
Thermal Protection
Speaker Protection
Output Via Speakon Or Binding Posts

Specifications :-

Output Power 8 Ohm Stereo : 2 x 300W RMS
Output Power 4 Ohm Stereo : 2 x 450W RMS
Output Power 2 Ohm Stereo : 2 x 600W RMS
Output Power 8 Ohm Bridged Mono : 900W RMS
Frequency Response : 20Hz-25KHz�0.5dB
THD+N(Pated power 8O/KHz)% : <0.05%
Damping Factor : >300
Signal Noise Ration(dB) : 103dB
Input Impedance : >20KO/>10KO
Input Connectors : Combo XLR type, 3pin and f6.3 jack
Output Connectors : Speakon and Output Binding Posts
Gain Selectable(dB) : 0.775V/1V/1.4V Power Supply : AC 220V-230V/50Hz-60Hz
LED : Clip Orange
LED : Protect Orange
LED : Signal : Blue
LED : Active Blue

Dimensions
3.51(H)x19.02(W)x18.43(D)ins (Without Case)

Weight
30.8lbs (Excluding Case)

"QLX Pro PA"

speakers are
2 x QLX Pro RS-15450H-ABS

15" LF Driver
1.75" HF Ti-membrane driver
Frequency Response: 40HZ-20KHZ
Impedance : 8 Ohm
Long-Term Power(RMS) : 450W
Sensitivity : 97dB(1W/1M) Weight: 22kg

2 x KAM z15
Professional compression horn - Metal reinforced corners
- 250 Watts RMS - 500 Watts peak - 8 Ohms impedance
- Dual speakon and dual jack connections - Polemount
- Weight: 25Kg - Dimensions: 47 x 40 x 78cm

[Excalibur]

Short answer-Yes, but:
That amp is considerably underpowered for that purpose, I'd want around 750w per channel at four ohms to drive those. With that output, you'd only be putting around 350w into the KAMS, which is far from excessive.

Also, don't expect a huge increase in perceived volume, it won't happen. Been there................................

Thirdly, thanks for all the info, but names and power specs would have been sufficient.

Fourth, I see the amp has figures for running at two ohms. Unless it has certain very expensive badges on, and you really really know what you're doing, regard this as forbidden. ( Waits for someone to recount how they've run their EP2500 in this way countless times with no ill efffects. )

[paul1404]

Also, don't expect a huge increase in perceived volume, it won't happen. Been there................................

Thanks for response what do you mean by the above would it be worth doing this ? Or am i better off just running the XLR speakers

Thanks again

[DazzyD]

Peter means, I think, that when people double the number of speakers they're using, they think they're going to get double the sound volume. It doesn't work like that. To get more "oomph" in your output, it could be a simpler solution just adding a bass bin.

I tried to run 4 speakers off a single 1200w amp and had some problems despite the specs and associated maths suggesting it should work. Now if I'm running multiple speakers, I take feeds off the mixer and run multiple amps.