Question about using two cabs?

[Dan55]

While you're trying out cabs at the Mesa store, check out a 212 in combination with the 210. They sound very good together and the 210 standing on it's side makes a nice vertical practice/small gig cab.

Dan

 

[georgestrings]

show me a metal grill that will protect speakers from flying beer

Maybe so, but IME most grill cloths can't take a beating in a truck/trailer unless you use a roadcase - which opens a whole 'nother can of worms...

*To me*, the risk of "flying beer" damage is nowhere near the risks my cabs take during load in/out and transport... I've never had a driver damaged with a metal grill protecting it, but I've had a fair amount of grill cloths that got ripped...

To each their own, though...



- georgestrings

 

[georgestrings]

You should not want nor need a PH210 to go with the PH1200.

If you want one big cab, the PH610/810 or the godly PH412 is where you wanna look.

Agreed 100%, and was already thinking that... Also, I'd add the PH215 to that formidable list of cabs...



- georgestrings

 

[hotrodjohn]

This rig has cabs that pair up nicely, and provides some modularity and options for smaller gigs. The 212 is significantly lighter than the 410, so the 410 tends to stay in the studio and the 212 sees more of the smaller gig action.

 

[Dudelike89]

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.

Yes, I understand. I've just never had the thought of pairing two 1200 watt cabs. I understand that different cab styles affect the sound and volume, and that most cabs "fart out" before you hit their peak. I was just in awe of such a high number.

@ Dan55 - I'll be sure to check that out!

@ hotrodjohn - Those two look very nice together. Bet they sound great too!

I am thinking I might go with the 4x12 but I just don't know about the height. I understand that the 4x12 is lighter than the 1200 (A whopping 1 pound lighter!!), but the extra height will make it harder to get into a truck it seems. I'll be sure to try different combinations of cabs, and hopefully I can afford which sounds best to me.

 

[Jim Campbell]

Yes, I understand. I've just never had the thought of pairing two 1200 watt cabs. I understand that different cab styles affect the sound and volume, and that most cabs "fart out" before you hit their peak. I was just in awe of such a high number.

@ Dan55 - I'll be sure to check that out!

@ hotrodjohn - Those two look very nice together. Bet they sound great too!

I am thinking I might go with the 4x12 but I just don't know about the height. I understand that the 4x12 is lighter than the 1200 (A whopping 1 pound lighter!!), but the extra height will make it harder to get into a truck it seems. I'll be sure to try different combinations of cabs, and hopefully I can afford which sounds best to me.

the extra height makes moving them easier,as you can use the lean and lever method from one end

 

[bspot]

This thread seems like a good place for me to ask a similar question:

I have an Acoustic B200H amp head [4 ohms] and a GK Goldline 410GLX 4x10 cabinet [8 ohms]. I want to add a 1x15 to round everything out. What should I be looking for, especially ohms wise?

 

[Bass_Pounder]

This thread seems like a good place for me to ask a similar question:

I have an Acoustic B200H amp head [4 ohms] and a GK Goldline 410GLX 4x10 cabinet [8 ohms]. I want to add a 1x15 to round everything out. What should I be looking for, especially ohms wise?

You should be looking for another 8 ohm 4X10 instead of a 1X15. Plenty of threads here on why.

 

[Jim Campbell]

You should be looking for another 8 ohm 4X10 instead of a 1X15. Plenty of threads here on why.

testify....with an identical 4x10 8 ohm cab the amp is seeing a 4 ohm load,which is ideal for most.....flexibility,and enough driver area for any situation....

 

[bspot]

Thanks for the replies. I've done some reading on ohms but I generally get lost fairly quickly. I appreciate any/all help on this subject....

 

[Dudelike89]

the extra height makes moving them easier,as you can use the lean and lever method from one end

Sounds like I'll need a helper. Hope it fits in the back of a suburban.

Thanks for the replies. I've done some reading on ohms but I generally get lost fairly quickly. I appreciate any/all help on this subject....

First off, ohms are backwards. The higher the number, the less the resistance. A 4 ohm cab has a high resistance causing the amp to work hard. An 8 ohm cab has a low resistance causing the amp to not have to work as hard as an 8 ohm cab. All amps have an ohm rating. Most go down to 4 it seems, while my BB750 goes down to two. Since yours is probably at 4, you can do 2 of the following. You can have 1 4 ohm cab, or 2 8 ohm cabs. To find the finals ohms, you take the average amount of the ohms in both cabs, and divide it by the number of cabs.

For example, if you want 2 8 ohms cabs, you will have an impedance of 4.

You take the average ohms of both cabs ((8+8)/2) = 8. Then you divide that number by the amount of cabs. (8/2) = 4. If your amp can power a 4 ohm load, then you are just fine. Hope that made a bit of sense for you.

 

[georgestrings]

the extra height makes moving them easier,as you can use the lean and lever method from one end

Absolutely - I can say that without a doubt, my PH810 is easier to load into my F150 than my PH610 is...


- georgestrings

 

[Growly Lytes]

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

Sorry man ive never heard of people using that kind of a set-up.Yeah sure using a 410 & 115 but adding a 210 to that will just not work & you might damage something. If you can find a 210 that can put out as much as a 410 in lows & highs you should get it !

 

[Munjibunga]

not so much phase ..... it is that the 4x10 will get the same power as the 1x15 given the same resistance,therefore the volume of the 4x10 will be limited by the capacity of the 1x15....the 1x15 will flake before the 4x10 gets up to it's potential...best to use 2 identical cabs,

Jim, he's talking about adding a 210 to this cab, not 410 and 115 separate cabs. Anyway, try it. If it sounds good, it is good.

 

[Jim Campbell]

Jim, he's talking about adding a 210 to this cab, not 410 and 115 separate cabs. Anyway, try it. If it sounds good, it is good.

the op mentions it in the op.....i understand your position,and while the results might sound great the limitations on the volume capability of the combination might be unacceptable.....i'm not familiar with the ph 1200,but i'm guessing that some internal x over is there to get the maximum from every driver

 

[Jim Campbell]

Absolutely - I can say that without a doubt, my PH810 is easier to load into my F150 than my PH610 is...


- georgestrings

thats what i drive,and with a good 2 wheeler stairs are no problem either....lean it on the tailgate,and lift half the cabs weight,slide it in, done.....one guy,no worries.....same deal for stages.....i have the ph 6x10,and nearly snagged a ph4x12 this summer.....

 

[bspot]

Sounds like I'll need a helper. Hope it fits in the back of a suburban.



First off, ohms are backwards. The higher the number, the less the resistance. A 4 ohm cab has a high resistance causing the amp to work hard. An 8 ohm cab has a low resistance causing the amp to not have to work as hard as an 8 ohm cab. All amps have an ohm rating. Most go down to 4 it seems, while my BB750 goes down to two. Since yours is probably at 4, you can do 2 of the following. You can have 1 4 ohm cab, or 2 8 ohm cabs. To find the finals ohms, you take the average amount of the ohms in both cabs, and divide it by the number of cabs.

For example, if you want 2 8 ohms cabs, you will have an impedance of 4.

You take the average ohms of both cabs ((8+8)/2) = 8. Then you divide that number by the amount of cabs. (8/2) = 4. If your amp can power a 4 ohm load, then you are just fine. Hope that made a bit of sense for you.

I appreciate the guidance! It sounds like I should be looking for another 8 ohm 4x10 cab instead of a 1x15 cab, that I would pair with my current GK 4x10 8 ohm cab.

Stupid questions:

1) The GK 4x10 cab that I have is no longer available. As long as I find another 8 ohm 4x10 cab, does it matter what brand that I pair with it? There aren't any conflicts to worry about when mixing brands?

2) Am I more worried about ohms or worried that both cabinets have the same sized speakers? I originally said I wanted to add a 1x15 but was told it would be better to go with a matching 4x10 cab. But what if the 1x15 I found was also 8 ohms? Wouldnt adding a 15 inch round out my sound better?

Thanks again...and sorry for the uneducated questions

 

[cheezewiz]

Good God, unless you're playing Madison Square Garden, I can't see any reason to ad another cab to a cab that already has 4 10s and 1 15. That cab alone is overkill for most situations.

 

[cheezewiz]

I appreciate the guidance! It sounds like I should be looking for another 8 ohm 4x10 cab instead of a 1x15 cab, that I would pair with my current GK 4x10 8 ohm cab.

Stupid questions:

1) The GK 4x10 cab that I have is no longer available. As long as I find another 8 ohm 4x10 cab, does it matter what brand that I pair with it? There aren't any conflicts to worry about when mixing brands?

2) Am I more worried about ohms or worried that both cabinets have the same sized speakers? I originally said I wanted to add a 1x15 but was told it would be better to go with a matching 4x10 cab. But what if the 1x15 I found was also 8 ohms? Wouldnt adding a 15 inch round out my sound better?

Thanks again...and sorry for the uneducated questions

1. No brand doesn't matter. All you need to do is find an 8 ohm cab that sounds good to you.

2. You'll get more low end from a 410 cab than a 115

 

[aqsw]

Sorry to hi jack the thread , but it is similar, and I don't want to start a new thread.

Please bare with me:

I started with a mesa PH 210 (8 ohm)to use as an extension cab for my double bass, with an AI Contra. Used this combo for electric bass also with a C & W band, but the Contra was cranked to get decent volume.
Joined another band playing EB, where volume is needed and bought a Mesa M9 and a PH115 (8 ohm).I stack the 115 and 210 but I think I still need more volume. I have heard alot of great things about the PH412.

I went to two music stores and talked to four people, and got four different opinions on:

Can I run the 115 daisied with the 210 out of one speakon of the M9? Then run a PH412 out of the second speakon out of the M9?
If I can, what should the ohm rating be of the PH412 that I would have to buy. I don't don't want it to overpower the other stack.

Or is the 115 and 210 just doing nothing but taking up space, as I saw in a different thread.

Thanks,
Jim