4-10 & 2-10 cabinet ohm loads

[smetaxas]

I was thinking about getting a GK CX410 & a GK CX210 bass cabinets to use live. I would use the 410 cabinet at smaller gigs & add the 210 for larger places. I would be able to bring both with me so I would know what I need when I see the room.

If I get an 4 ohm 410 & an 8 ohm 210, I would be at 2.67 ohms? I will probably be using an Ampeg SVT 3 Pro which is rated is only rated down to 4 ohms. Could this damage the amp? How about a GK RBH1001?

Would I be better off getting an 8 ohm 410 with a 4 ohm 210 & rewire the 210 to 16 ohms? That would make the total loan 5.3 ohms?

I want to makes sure all speakers are getting the same amount of power.

 

[cfsporn]

Your idea about a 4 ohm 410 and 8 ohm 210 from the same product line is the smart way to mix cabs. Unfortunately, neither of the heads you mentioned can drive a 2.67 ohm load so trying to do so would cause the amp to release magic smoke.

 

[The Regulator]

Get your hands on a GK 800RB and you're good to go.

Set the amp to full range and plug the 4 ohm 410 into the low amp & the 8 ohm 210 into the high amp.

 

[chris_b]

My suggestion would be a 4 ohm 410 and an 8 ohm 210 and a 2 ohm amp.

But looking at your suggested gear, the 410 is rated at 800 watts and the 210 is rated at 400 watts. As an SVT3 PRO puts out a maximum 450 watts if you got both cabs at 8 ohms you could safely run the amp in your suggested configs and you wouldn't run any risk of damaging the 210 cab.

 

[BassmanPaul]

Buying both at 8Ω means that the drivers in the 2x10 will be getting twice the power each of those in the 4x10. The 4Ω 4x10 and 8Ω 2x10 is the only way of mating those two boxes. All the drivers in either cabinet will each see the same amount of power. The fact that the OP's amp suggestions do not support this is immaterial. As I see it, the OP has to get an 8Ω 4x10 and mate it with a 16Ω 2x10 to be able to use his selected amps at 5.33Ω.

 

[smetaxas]

If I am correct, would the 8 ohm 410 have 4-8 ohm speakers & the 4 ohm 210 have 2-8 ohm speakers? I would just have to rewire the 210 to 16 ohms?

 

[Steve Dallman]

8ohm 4x10 and 16ohm 2x10 would be the ticket.

 

[ThisBass]

Cab matching is fine. Both cabs compose to a fine balanced 610 rig. Unfortunatelly your amp does not support the total impdance of 2.7 Ohm

edit,
indeed the 5.3 Ohm option is the ticket

 

[chris_b]

The 410 will be getting half the power of the 210.

A potential 225 watts (who runs their amps flat out? if you do you need a bigger rig) into a 210 cab that is rated for 400 watts is not going to cause it a problem.

 

[ThisBass]

The 410 will be getting half the power of the 210.

A potential 225 watts (who runs their amps flat out? if you do you need a bigger rig) into a 210 cab that is rated for 400 watts is not going to cause it a problem.

For both combinations
410 - 8 Ohm and 210 - 16 Ohm
410 - 4 Ohm and 210 - 8 Ohm
the amp runs flat out to each driver