Yamaha 2x18

[crother316]

so how about using a Crown xls1500 drivcore series power amp for a 1.2kw/4ohms. for the sw218v yamaha subs. ??? would that work well? or are the better or other suggestions for power amps to this cab? and how would be the best way to hook it up?

 

[simpleacoustic]

Didn't read this entire thread but if you're into the work I personally think this is definitly worth it.
diyAudio.

 

[crother316]

Didn't read this entire thread but if you're into the work I personally think this is definitly worth it.
diyAudio.

View attachment 229077

alright, what am i looking at? your gonna have to explain a little bit. haha sorry i dont know a whole lot about this stuff, but am trying to learn.

 

[simpleacoustic]

This is the entire thread where this started .I got all of my help from NeoDan, so u can follow along and see how it came about but as for measurements ,you'll have to message me or NeoDan.

http://www.diyaudio.com/forums/subwoofers/182957-2-18-bass-design.html

 

[crother316]

so how about using a Crown xls1500 drivcore series power amp for a 1.2kw/4ohms. for the sw218v yamaha subs. ??? would that work well? or are the better or other suggestions for power amps to this cab? and how would be the best way to hook it up?

any one have any idea about this?

 

[djk]

Wire works for me.

 

[crother316]

Wire works for me.

...... I meant like- stereo 2 ohms, stereo 4 ohms, Bridge mono, ect...... ?

what do these mean and how would it be done?

 

[djk]

The Yamaha SW218V is 4Ω, so you run one box per channel in stereo. You must use a high pass filter at 40hz or so.

In general, 2Ω loads are a poor choice for an amplifier, unless it is rated to drive 1Ω. I might load an amplifier rated to 2Ω with a 2Ω load in an emergency, but never on a full time basis.

 

[weltersys]

The Yamaha SW218V is 4Ω, so you run one box per channel in stereo. You must use a high pass filter at 40hz or so.

In general, 2Ω loads are a poor choice for an amplifier, unless it is rated to drive 1Ω. I might load an amplifier rated to 2Ω with a 2Ω load in an emergency, but never on a full time basis.

Although I avoid any long cable runs at 2 ohms, I never had any problems loading my CA-9s at 3 ohms per side, and am presently running them bridged mono into a 4 ohm load, the equivalent of a 2 ohm load. No problems even with the sun hitting them on 100 degree days.

The Speaker Power SP1-4000 plate amp, rated for two ohm operation, runs cool with four Lab 12, a nominal 1.5 ohm load.

Some amps fold up like a cheap suit below four ohms, others have no problem with two.

 

[Eva]

Not all amplifiers rated at 2 ohm are actually designed considering a 2 ohm load as "normal operation". Sometimes 2 ohm operation involves over-stressing components or producing more heat than things are intended to handle, resulting in long term failure and poor overload behavior, but *not* in the stuff I design.