Markbass said it was ok , but.......

Doesn't matter.

 

Any reason why you went this direction and not the reverse? I'd assume the 210s to have better power handling.

 

Both cabs get hit at the same time since it isn't feasible to measure the speed of electricity down the wires.

 

800 watts for a 112? Are you sure both cabinets are rated using the same metrics?

My hunch is that the 112 is rated using peak units while the 210 is rated using RMS units. That's either a 2:1 or 4:1 difference depending on the definition used.

This topic comes up often, I deal with it often when helping players match speakers to an amp. Nobody wants to unintentionally damage a speaker.

 

I was reading it as per pair but still seems off even though the 112 horn things look a lot more serious than the 210's.

Might be some milage in powering them each set to one side of the amp if maximum ear damage is sought.

Should really set them in a V and rack to the side. Cabs set apart like the photo gives a max filtered and wobbly bass field out front.

 

I would be extremely surprised if the speaker can survive long if fed 800W of program material between 40-100Hz, but here's what the product pages says:
IMPEDANCE: 8ohms
SPEAKER SIZE: 1x12 in.
BASS PORT: rear
TWEETER: 1" compression driver with custom horn
POWER HANDLING: 800W RMS (AES Standard)
CROSSOVER FREQUENCY: 3.5 kHz
FREQUENCY RESPONSE: 40 Hz to 20 kHz
SENSITIVITY: 99 dB SPL
WEIGHT: 45.19 lbs / 20.5 Kg
WIDTH: 23.23 in. / 59 cm
HEIGHT: 14.76 in. / 37.5 cm
DEPTH: 16.73 in. / 42.5 cm

MARKBASS | Products | Traveler 121 Ninja

 

I'm hearing your rig all the way to my house Chuck!

 

Electro-mechanically, it doesn't matter (especially in a parallel connection). Have you hooked one side up reverse from the other just to see if you notice a difference? I doubt it would be anything the ear could detect, but it's still a free and easy test to perform just to see if there's any sonic benefit to one vs. the other.

 

Or one tall stack of all 4.

 

reminds me of some of those old kustom pa ' stacks'

 

I heard something when my mouse scrolled over the thread title.... I knew it would be interesting.

 

Interesting. That's my favorite cab setup, cabs both sides of the drummer - actually lets me turn down quite a bit and still be heard all over the stage.

 

There are 12 inch drivers available rated for that kind of wattage no one here knows whats in that cab.

I might stack the two 1x12 cabs on one side and the two 2x10 cabs on the other side, set the master of the poweramp at half way and set volume to taste. I would stack the cabs vertical if you can but roll with it baby.

Nice rig!

 

Since you have 2 separate bass stacks - there is going to be some phase cancellation. Do some experimentation varying the distance between them for best sound.

 

The off axis lobing and comb filtering will be the worst issue. IMHO the closer the spacing between cabs the better as it will push these problems to a higher frequency range.

Note. that the wavelength of 50hz is 22.5' and 100hz is 11.25'. The resultant dispersion patterns are based upon relationship between spacing between the cabs and wavelength.

See fig 41 and 42 of the attached Bass Array Guide and note how the dispersion pattern changes as wavelength decreases. The spacing between the cabs in both figures is 13.1'. At 50hz when the wavelength is almost double the spacing, you get a strong power alley beaming out from directly between the speakers. At 100hz when the wavelength is slightly less than the spacing, you have deep nulls at 45 degrees left and right.If you double the distance between the two set of speakers, you get the same dispersion pattern one octave lower. Compare fig 42 to fig 43.

Keep reading through the figures and notice the comb filtering that begins to occur as the spacing between the cabs become multiples of the wavelength.

Based on these observations, the attached Frequency Wavelength Chart can be used to deduce what happens at higher frequencies with narrower spacing between the two stacks of cabs.

Whether or not this is a problem is totally up to you. IMHO if the PA is pushing sound to the audience, I don't think it is. But if the bass amp is carrying the room then I personally think the speakers should be tight packed to push the lobing and comb filtering to the highest frequency range possible. IMHO fig 42 in particular illuminates a pretty serious problem. Spacing of 13.1' is probably not that far off the mark if you have the drums on top of risers and place one set of cabs on each side of the risers.

YMMV.