Mojo musical supply new 1x15 empty cab

I'm no cabinet guru, but I am curious about these for sure. One thing that jumps out is the weight. 18lbs??? Wonder what these are made out of....

 

I just saw these and am curious as well. I have a couple of their guitar cabs and they are top notch.

 

that does look nice... and I was thinking about going back to 15's. This might be a good option.

 

They don't really give you any good solid spec information that might help you decide what speaker would work best in this or what type of sound you might get.

Generally, you design a cabinet around a speaker, rather than the cab first and stuffing it with whatever. Probably your best bet is to ask them some questions...like what the internal volume of the cab is and how long those port tubes are. That will give you a better idea of what might work.

 

Well designed cabs are specifically engineered to work with specific drivers. :scowl:

 

Should be just over 3 cu ft. from those dimensions. If the port tubes are cut long enough that you can trim them down to size to suit your desired tuning, it would be on the small end of the spectrum for use with a 2515 or about right for a 3015. Shouldn't sound bad with either. Needs some corners though.

 

Keep in mind that really you'll need to know what kind of bracing, etc. is inside the cab to get a real idea of internal volume too. I'd want to know about the bracing anyway to make sure it's in the right place and will have decent rigidity.

 

For their size, unloaded that weight seems close if built from 1/2" ply.

I have a similar sized 115 that only weighs 27 lbs. loaded and my bracing was probably overkill.

 

My thoughts:

No Speakons. No corners. Seems to be a tad overpriced even with those things, and without speakons or corners, even moreso.

 

I'm being more optimistic than bill, although he is definitely right. That cab, with just a little work and knowledge, can make a decent setup and take care of the intensive construction part of the project. It's just about perfect for a kapalite 3015 (non LF) IMO. That's making a good guess as to the actual internal volume.

As far as tuning you could use Greenboy's salt trick, you could measure it with a resistor and a volt meter, or you could try your damndest to figure out the internal volume exactly, subtracting .268 cu ft for the driver displacement, and use winisd to calculate the port length. I think 45 Hz would work good so you can shoot for that.

If the cab is not internally braced and lined with polyfill already you will need to do this also.

 

I feel that if someone buys a cabinet like this does so to avoid the hassle of designing the box. That being so they will never have the knowledge needed to make it work with a specific driver. More likely they will just settle for the "speaker in a box" approach and load it with whatever driver they have available or fancy.

Paul

 

IMO someone buys a cab like this because they're unaware that there is any such thing as driver/cab matching, let alone any of the finer points of enclosure design.

 

I thought they bought it for the grille cloth!

That said, at least these Mojotone guys are a step beyond what Lopoline used to show for their empty "bass cab", which was woefully small and even moreso underported. I should check to see if they are as dire as they were back then.

 

That's because they're too busy ROCKIN'!!

 

Well, the internal volume well work decently with a fair number of drivers (I'd personally favor Em 3015 for lightness and power handling) though as has been said, tuning might need to be adjusted. Email them for a port tube depth and report back.

 

I have the feeling the majority of cabinets available are just speakers in boxes.
Made to fit a look or white box spec more than performance.

Buying a box like this, and tossing in a driver may be no worse than the average production box at the same price range. Except you don't get to try it out ahead a time and return it if it doesn't work out.

 

I'm liking that 1x12 box size. I'd love to have a tweeter added. I'm looking for a really small (and inexpensive 4ohm 1x12) to use as a rehearsal setup with my GB Shuttle 3.0.