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Best way to run mrx528s subs?
Dave Mathew:
I am interested in configuring these subs in the best setup.
Currently I have 2 mrx528s subs powered by 2 crown xti4000 bridged mono - 3200 watts each.
The tops I use are 2 mackie sa1521 and 2 mackie sr1530
I am contemplating getting another set of mrx528s. What would be the best way to power all 4 cabinets?
Could I chain the second pair off of the first and get decent results, or should I be looking into getting more amps?
I am assuming that if I chain them together that I will be sending 1600 watts to each cabinet.. also would any kind of processor help improve the sound?
Thanks in advance for your help
Chris Hindle:
--- Quote from: Dave Mathew on March 05, 2011, 02:38:05 PM ---I am contemplating getting another set of mrx528s. What would be the best way to power all 4 cabinets?
Could I chain the second pair off of the first and get decent results, or should I be looking into getting more amps?
--- End quote ---
Nope.
They are 4 ohm cabs.
Bridging the XTI4000 for 4 ohms is as low as they are rated.
Time for 2 more amps.
Seth Frick:
--- Quote from: Dave Mathew on March 05, 2011, 02:38:05 PM ---I am interested in configuring these subs in the best setup.
Currently I have 2 mrx528s subs powered by 2 crown xti4000 bridged mono - 3200 watts each.
The tops I use are 2 mackie sa1521 and 2 mackie sr1530
I am contemplating getting another set of mrx528s. What would be the best way to power all 4 cabinets?
Could I chain the second pair off of the first and get decent results, or should I be looking into getting more amps?
I am assuming that if I chain them together that I will be sending 1600 watts to each cabinet.. also would any kind of processor help improve the sound?
Thanks in advance for your help
--- End quote ---
Just run two subs per amp, one per channel. That'll give you 1200W per channel minimum guaranteed power at 4 ohms, which is enough to run the MRX528S. You won't have much headroom though. You'll get less THD this way than you do bridging the XTi's at 4 ohms, though, so that will improve sound quality slightly (it's also not as hard on your amps). As for processing, the XTi4000's have built-in DSP. Are you using any of the processing features other than the crossover? The built-in DSP is not quite as good as a decent external DSP like a DBX DriveRack PA, but I can't imagine you're going to get appreciably better sound quality by switching to one of those. The main reason to go with an external DSP would be if you planned on getting new amps.
Tim Talbot:
''The built-in DSP is not quite as good as a decent external DSP like a DBX DriveRack PA'' understatement of the year ;) They clip and send square waves down the line
Dave Mathew:
--- Quote from: Seth Frick on March 07, 2011, 10:41:44 PM ---Just run two subs per amp, one per channel. That'll give you 1200W per channel minimum guaranteed power at 4 ohms, which is enough to run the MRX528S. You won't have much headroom though. You'll get less THD this way than you do bridging the XTi's at 4 ohms, though, so that will improve sound quality slightly (it's also not as hard on your amps). As for processing, the XTi4000's have built-in DSP. Are you using any of the processing features other than the crossover? The built-in DSP is not quite as good as a decent external DSP like a DBX DriveRack PA, but I can't imagine you're going to get appreciably better sound quality by switching to one of those. The main reason to go with an external DSP would be if you planned on getting new amps.
--- End quote ---
I am using the dsp for bridge and crossover, but thts it.
So if I chain 2 4 ohm cabinets together then I will have a 2 ohm cabinet? and would this would be to hard on the amp to use it in bridge mode at 4 ohms?
does anyone have a recomendation for how to get the most bass and best sound out of these cabinets?
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