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Question about using two cabs?

#21
I have compared the Powerhouse1200 directly with the Powerhouse412 and the 412 was light years better in every way. The 1200 was boomy and muddy and had tons of low end throb but no definition in the tone. it sounded very scooped where the 412 is loud, deep authoritive, crystal clear and punchy as hell. Its a startling difference. I bought the 412 and have not looked back. I also own a pair of Powerhouse 115 cabs and they make an amazing stack that has more volume then most will ever need on stage.
 
#22
i would get the mesa vintage powerhouse 810 if i could get any rig i wanted from them and was looking to max out my capabilities. the 410/115 isn't much smaller, and the 810 just works, you know? or maybe two 410's if transpo is an issue. and i'd buy a 210 for a knockaround cab, too.
 
#23
billfitzmaurice said:
Two cabs out of polarity are 180 degrees out of phase. But they can be out of phase at any degree of phase, and those degrees of phase can be different at every frequency.
Click to expand...
so is that due to differences in how quickly the individual drivers react...and or how far they travel....could older and newer similar drivers face phasing issues as they wear .....
 
#24
Jim Campbell said:
so is that due to differences in how quickly the individual drivers react...and or how far they travel....could older and newer similar drivers face phasing issues as they wear .....
Click to expand...
Constantly changing phase across the bandwidth is a normal situation with all speakers. So long as you're listening to one speaker, or a grouping of identical speakers, phase is not audible. Phase differences between different speakers is audible, and unpredictable, and that fact is one of the arguments against mixing different speakers.
 
#25
billfitzmaurice said:
Constantly changing phase across the bandwidth is a normal situation with all speakers. So long as you're listening to one speaker, or a grouping of identical speakers, phase is not audible. Phase differences between different speakers is audible, and unpredictable, and that fact is one of the arguments against mixing different speakers.
Click to expand...
ahhhh,so aside from the uneven power issues,the fly in the op's ointment is the 2 different sized drivers
 
#26
JimmyM said:
i would get the mesa vintage powerhouse 810 if i could get any rig i wanted from them and was looking to max out my capabilities. the 410/115 isn't much smaller, and the 810 just works, you know? or maybe two 410's if transpo is an issue. and i'd buy a 210 for a knockaround cab, too.
Click to expand...


Yeah, I've got a couple of gigs under my belt with my new PH 810, and it just slays - it's like an Ampeg 810 on steroids... Like Jimmy says, it's really not much bigger than the PH1200 - but a WHOLE lot more performance:

PH810-1.jpg
 
#28
um, excuse me george, but i clearly said the vintage powerhouse 810, not the regular one. the vintage model has grillecloth. that's super cool.

:D

yes, i know they're the same cab, but still...
 
#30
JimmyM said:
um, excuse me george, but i clearly said the vintage powerhouse 810, not the regular one. the vintage model has grillecloth. that's super cool.

:D

yes, i know they're the same cab, but still...
Click to expand...


Yeah, I know what you said - but chose to ignore the geezer influence:D

BTW, I picked up a new M-pulse 600 to push those cabs with - maybe I'll start a thread with some NAD pics tomorrow...


- georgestrings
 
#31
Dudelike89 said:
I was talking to a guitar center worker the other day about how I wanted a Mesa Powerhouse 1200 and a Mesa Powerhouse 2x10 for my rig. He brought up that running those two together ((4x10 + 1x15) + 2x10) would causing phasing issues because the 2x10 would be trying to match the volume of the 1200. Is this true? I never thought of it before, but it kind of makes sense I suppose. So would running a large cab like the 1200 with 4x10 and 1x15 all in the cab in conjunction with a smaller cab like a 2x10 cause issues?

And if that's the case, wouldn't a 4x10 and a 1x15 two cab setup cause phasing issues as well? Thanks for any replies.

Andrew
Click to expand...

Andrew-

You have a couple of factors here at work: 1. Phasing, and 2. Resistance. As many of the replies have noted, you HAVE to worry about Resistance, and SHOULD worry about phasing. There are a slew of threads on TB about resistance, and is it really that big of an issue. Assuming you are in the know on that subject, here's my 2c.

I would wonder why you would want to do a 4X10/1X15 with another 2X10. That's a lot of stuff to lug around! If it's volume you are after, I suggest a different route. I can't imagine a MESA 1200W Cab not being enough for any setting with an Amp having the proper output. I assume that the cab is 8 Ohm, and that might be a factor, but if you have the 2x10 in there I would think the resistance being divided in half would not counter the overdrive of the 210 due to the wattage threshold difference between the two.

I keep up with some serious volume with a 300W Solid state amp with 2 cabs, a 4X10 and a 4X8 - And I DO have phasing issues. Mix any two cabs/Drivers/speakers of different circumference and you have phasing. Degree's vary, based on delta (Mix a 4X6 with a 1X18, and you will hear it clearly). - Just throw two differently sized stones in the water and you can visualize what this is - Large Circumference speakers are slower, and have less brightness and definition. - Mix it with a small cab of the opposite properties and you get two distinct outputs of sound, or phasing or the sound waves.

The salesperson at GC seemed to be using a subject he knew a little about and applying it for a sale. I have heard those powerhouse cabs, the ones that have the 10/15 in the same cab, and you still have phasing. The question is, does it effect your style of playing?

If so, I recommend one of the following: For Volume issues, investigate your amp. For worry about phasing issues, try a 4 Ohm 6x10, 8x10, or 2x15 depending on your tonal taste.
 
#32
georgestrings said:
Yeah, I know what you said - but chose to ignore the geezer influence:D

BTW, I picked up a new M-pulse 600 to push those cabs with - maybe I'll start a thread with some NAD pics tomorrow...


- georgestrings
Click to expand...

I have to agree. I'm sticking away from that grillecloth. I like the looks of the regular powerhouse. I bet that M-pulse 600 sounds great. I currently have a BB750. I've hooked that up to a friends mesa cabs, and man...I've never heard a more beautiful sound.

3k Mylz said:
Andrew-

You have a couple of factors here at work: 1. Phasing, and 2. Resistance. As many of the replies have noted, you HAVE to worry about Resistance, and SHOULD worry about phasing. There are a slew of threads on TB about resistance, and is it really that big of an issue. Assuming you are in the know on that subject, here's my 2c.

I would wonder why you would want to do a 4X10/1X15 with another 2X10. That's a lot of stuff to lug around! If it's volume you are after, I suggest a different route. I can't imagine a MESA 1200W Cab not being enough for any setting with an Amp having the proper output. I assume that the cab is 8 Ohm, and that might be a factor, but if you have the 2x10 in there I would think the resistance being divided in half would not counter the overdrive of the 210 due to the wattage threshold difference between the two.

I keep up with some serious volume with a 300W Solid state amp with 2 cabs, a 4X10 and a 4X8 - And I DO have phasing issues. Mix any two cabs/Drivers/speakers of different circumference and you have phasing. Degree's vary, based on delta (Mix a 4X6 with a 1X18, and you will hear it clearly). - Just throw two differently sized stones in the water and you can visualize what this is - Large Circumference speakers are slower, and have less brightness and definition. - Mix it with a small cab of the opposite properties and you get two distinct outputs of sound, or phasing or the sound waves.

The salesperson at GC seemed to be using a subject he knew a little about and applying it for a sale. I have heard those powerhouse cabs, the ones that have the 10/15 in the same cab, and you still have phasing. The question is, does it effect your style of playing?

If so, I recommend one of the following: For Volume issues, investigate your amp. For worry about phasing issues, try a 4 Ohm 6x10, 8x10, or 2x15 depending on your tonal taste.
Click to expand...

Thanks. It's making more and more sense now. And yes, I understand that ohms matter, I was just trying to make it clear for people who thought I was confused about ohms.My amp can handle 2 ohms, so I'm not really worried about overworking my amp. I'm definitely going to try out those cabs. I'm personally leaning towards the 4x12 or the 8x10 right now. Never thought I'd own those huge cabs. I will let my ears decide which cab to get. The fact that I am going to be saving money is nice too. :D
 
#37
Dudelike89 said:
Whopping 2400 watts RMS. Wow.
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Impressive on the face of it, but in practice, moot. The thermal power rating says next to nothing as to how much actual output a rig will give. You need to read up on how driver displacement affects actual output. The fEarful thread is a good place to start.
 

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