Gallien Krueger MB200 + Behringer Ultrabass BA115

Azathoth696

Azathoth696

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May 19, 2016
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#1
Hi, first of all I do apologize for my english, since my main language is spanish, and thank you very much for using a bit of your time and read to this thread.

My name is Enrique, and I'm from México.

I bought a GK MB200 amp head and a friend of mine sold me a very cheap and cool Behringer Ultrabass BA115 that's capable of supporting 600 watts at 4 ohms, my issue is that when practicing with my band, I don't feel that the power is right, and I'm not sure if it's by the setting on my amp head or maybe because the amp head won't go up to 200 watts with that cab, actually I'm not sure of what to do, I'm planning on selling the head amp...
 
#4
Su Ingles es mejor que mi Espanol

Boosting the lower bass will take a lot of power. Try to boost more Mid frequencies to make it easier to hear your playing. Thats a good amp, but you may just need a better, more efficient cab of two. If you get a 4 ohm cab, you can only use one. But if you get a pair of 8 ohm cabs, you can use both when you need more volume and one of you don't. 2 cabs will get louder than the extra 60 watts would.
 
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#9
If you add another 8 ohm cab you can get the full 200 watts out of that head since you will be running it at 4 ohms. The little bit of extra wattage + more speakers pumping will definitely get you more volume. (mostly the more speakers)

Also that cab is not rated at 600 watts, I promise. Behringer fudges their wattage numbers. But don't let that scare you, as long as the cab doesn't sound like it's in pain you're all good. That mb200 shouldn't be able to blow it up.
 
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#11
JellinWellen said:
If you add another 8 ohm cab you can get the full 200 watts out of that head since you will be running it at 4 ohms. The little bit of extra wattage + more speakers pumping will definitely get you more volume. (mostly the more speakers)

Also that cab is not rated at 600 watts, I promise. Behringer fudges their wattage numbers. But don't let that scare you, as long as the cab doesn't sound like it's in pain you're all good. That mb200 shouldn't be able to blow it up.
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I see, well, it doesn't sound like it's going to explode or something haha, it just doesn't seem to be the 200 watts power, that was my main question, I was afraid that the amp was screwed or something, the cab can go and kill himself if he wants hahaha
 
#12
tbirdsp said:
I would get two decent quality 8-ohm 112 or 115 cabs - then you can use one for smaller gigs and add the second one as needed. If you get a single 4 ohm cab you can't add another later. MB200 is a fine head - you may eventually need to get more power though.
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I see, a friend of mine recomended me to save some money and buy a single high quality 4 ohm cab and that's all I would need for this amp, and yes, I'm pretty sure I will need more power in the future, thank you very much for your advice!
 
#13
Azathoth696 said:
I see, a friend of mine recomended me to save some money and buy a single high quality 4 ohm cab and that's all I would need for this amp, and yes, I'm pretty sure I will need more power in the future, thank you very much for your advice!
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your friend is wrong.

Two 8 ohm cabs is always louder than the same cab in 4ohms., particularly when you have a bigger amp but the minimum effect of double cabs is 3dB. This is known as sensitivity.

To get an extra 3dB from power alone you need to double power. That assumes that the cab handles the extra power cleanly and without heating up. In fact they do heat up.

The good news, you only use the maximum power for brief periods on each very loud note. The rest of the time the power is there as reserve backup. We call that headroom.
 
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#15
Downunderwonder said:
your friend is wrong.

Two 8 ohm cabs is always louder than the same cab in 4ohms., particularly when you have a bigger amp but the minimum effect of double cabs is 3dB. This is known as sensitivity.

To get an extra 3dB from power alone you need to double power. That assumes that the cab handles the extra power cleanly and without heating up. In fact they do heat up.

The good news, you only use the maximum power for brief periods on each very loud note. The rest of the time the power is there as reserve backup. We call that headroom.
Click to expand...
Downunder is right. Forget the 4ohm cab altogether. You are restricting yourself buying a 4om cab. Hardly anyone does that anymore. At least on the low scale. Forget the 4ohm cabs.
 
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