Hey Pete Murray!

[bassmonkey]

Hi,

I recently bought a LM2 and 2X10 traveller cab as a practice amp. My main rig is a GK1001RB with GK4X10 4ohm cab. Is it possible to run the GK 2X10 and 4X10 together on a gig without blowing the 2X10? How would I best connect them? Is there any advantage doing this as opposed to just running the 4X10?

BTW great product.

 

[LowDownDave]

I'm not Pete Murray, but doesn't the 1001RB have a minimum impedance rating of 4ohm, in which case I believe hooking up an 8ohm Markbass cab and 4ohm GK cab could potentially damage your amp (the "magic smoke" I've heard so much about, but have thankfully never seen).

 

[bassmonkey]

I'm not Pete Murray, but doesn't the 1001RB have a minimum impedance rating of 4ohm, in which case I believe hooking up an 8ohm Markbass cab and 4ohm GK cab could potentially damage your amp (the "magic smoke" I've heard so much about, but have thankfully never seen).

I thought the MB cab was 4 ohm. I also thought it was possible to run the GK with an 8 ohm load?

 

[oldbluebassman]

When you daisy-chain cabinets you are effectively putting the speakers in parallel. The formula is (I hope you are good at fractions):

1/Total = 1/cab#1 + 1/cab#2.

If you have 2 x 8-ohm cabs then the load seen by the amplifier will be 4-ohms.

If you have 2 x 4-ohm cabs then the load seen by the amplifier will be 2-ohms. There are only a few amps that will accept a 2-ohm load.

If you have a 4-ohm cab and an 8-ohm cab then the load see by the amplifier will be 2.667-ohms. If your amp is not designed for a 2-ohm load you will do it serious damage.

You should be able to use one or other of your cabinets with the GK but not both.

 

[bassmonkey]

Just checked, my MB cab is 8 ohm load. The 1001 has two outputs, can I not connect a cab to each output?

 

[russjm]

I bought a combo, it was easier to figure out .

 

[tkarter]

Just checked, my MB cab is 8 ohm load. The 1001 has two outputs, can I not connect a cab to each output?

Your very first post said the GK 4x10 was 4 ohm. If you plug it in you are at max load.

You put the 8 ohm with it you go down to the 2.66 ohm load and GK nor Markbass handles 2 ohm loads that I know of.

If both cabs are 8 ohm plug them in. If not don't

tk

 

[Psychicpet]

Your very first post said the GK 4x10 was 4 ohm. If you plug it in you are at max load.

You put the 8 ohm with it you go down to the 2.66 ohm load and GK nor Markbass handles 2 ohm loads that I know of.

If both cabs are 8 ohm plug them in. If not don't

tk

sounds right

(but the PJB M500 goes to 2)

 

[tkarter]

Let's don't confuse the lad.

Your GK rig won't handle both of them if the GK 4x10 is 4 ohms.

tk

 

[bassmonkey]

Okay, I get it now.

Thanks for the replies.

 

[Peter Murray]

Okay, I get it now.

Thanks for the replies.

Hey Bassmonkey!

Sorry I got here so late. I'm in Germany producing a record and not as on top of the forums as usual.
Yes, all Markbass heads and combos have a 4 ohm minumum, which means you can use:
1x 8 ohm cab
2x 8 ohm cabs (which gives you 4 ohms)
1x 4 ohm cab, or
1x 6 ohm cab.
If you have any further questions, please let me know!
Best,
Peter

 

[tiffles]

peeeeete!! you swinging by london at all?? ill buy u a drink

 

[bassmonkey]

Hey Bassmonkey!

Sorry I got here so late. I'm in Germany producing a record and not as on top of the forums as usual.
Yes, all Markbass heads and combos have a 4 ohm minumum, which means you can use:
1x 8 ohm cab
2x 8 ohm cabs (which gives you 4 ohms)
1x 4 ohm cab, or
1x 6 ohm cab.
If you have any further questions, please let me know!
Best,
Peter

Cheers Pete.

There is a dial on the side of my cab labelled level control. There was no instruction booklet with the cab and nothing on the website. What does this dial do?

 

[Psychicpet]

tweeter.... I'm thinkin'

 

[bassmonkey]

tweeter.... I'm thinkin'

Doh! Of course!

 

[Peter Murray]

Doh! Of course!

Bingo!

 

[Peter Murray]

peeeeete!! you swinging by london at all?? ill buy u a drink

That would be fun! And extra cool given the cost of everything in London!

Alas, I'm finishing mixing this record tomorrow, and then I fly to Oslo Friday for a weekend of product training. Then it's home for me.
Next time!

Drink one for me instead!

PM