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New F-Bass speaker cabinets!

#61
KJung said:
Confusing thread. People talking about subwoofers with downfiring woofers, etc. has nothing to do with port placement.

Are people saying that the actual PORT is on the bottom of the cab? If so, that is strange. Kind of like putting a rear port 1/2" (assuming there are rubber feet on this box) from the wall, which is a no-no as far as I know. I guess they could greatly oversize the port to make up for the lack of distance from the floor.

Again, confusing thread, not sure if this is the case or not. Other than that, looks like yet another 210 with a tweeter. Lots of competition out there, especially given that it isn't a neo box.

Edit: If it is a passive radiator (i.e., a port alternative like used in the Walkabout cabs), then I guess it doesn't matter, since no air is being pushed out of the port.
Click to expand...

As far as we can tell, Ken the porting is on the bottom of the cab, which would be bad for exactly the reason you're saying. Of course, it would be great if someone who's actually tried one could verify the cab design, just to be sure.
 
#62
BurningSkies said:
As far as we can tell, Ken the porting is on the bottom of the cab, which would be bad for exactly the reason you're saying. Of course, it would be great if someone who's actually tried one could verify the cab design, just to be sure.
Click to expand...

Just read the verbiage on the site... one rear port, one 'bottom port'. I wonder if it is a passive radiator. That is exactly the design of the Walkabout Scout cabs... one traditional rear port and one passive radiator on the bottom of the cab. That would seem to work fine. A hole cut in the bottom of the cab..... maybe no so much.

Funny marketing verbiage... the 'downfiring port to give the cabinet big low end'. I don't think it works that way:p
 
#63
KJung said:
Just read the verbiage on the site... one rear port, one 'bottom port'. I wonder if it is a passive radiator. That is exactly the design of the Walkabout Scout cabs... one traditional rear port and one passive radiator on the bottom of the cab. That would seem to work fine. A hole cut in the bottom of the cab..... maybe no so much.

Funny marketing verbiage... the 'downfiring port to give the cabinet big low end'. I don't think it works that way:p
Click to expand...

I knew someone once with a downfiring port that had a big low end.
 
#65
KJung said:
Just read the verbiage on the site... one rear port, one 'bottom port'. I wonder if it is a passive radiator. That is exactly the design of the Walkabout Scout cabs... one traditional rear port and one passive radiator on the bottom of the cab. That would seem to work fine. A hole cut in the bottom of the cab..... maybe no so much.

Funny marketing verbiage... the 'downfiring port to give the cabinet big low end'. I don't think it works that way:p
Click to expand...

It does indeed have two different ports and not a passive radiator. The bottom port is much smaller if memory serves me correct. I think it's a 1" dia. The back looked more like 4". Perhaps the small size of the bottom port and the limited volume it can 'flow' will be sufficeint to not be too effected by the floor. I guess as long as the feet were high enough to displace all the volume of air that port can pass without creating a backpressure it may not be as much of an issue???
 
#67
The port produces most of the output at the tuning frequency. There is no difference in a downfiring port or downfiring passive radiator.

A 1" port is going to chuff. Regardless if there's a bigger port also. 1 appropriately sized port, or multiple ports of the same size and dimensions is the standard for good reasons.

Sounds like these were just cobbled together, as if Theile-Small never existed. No surprise, as most new bass cabinets seem to be like this.
 
#68
seamonkey said:
Sounds like these were just cobbled together, as if Theile-Small never existed. No surprise, as most new bass cabinets seem to be like this.
Click to expand...

Personally, I look forward to the reviews. I've only met George once, but I ended up buying a sweet bass from him. I have a hard time believing he just cobbled them together. The marketing verbage on their site seems to indicate no, but what do I know? There are a lot of highly rated cabs out there that have taken totally "off track" design philosophies.

These are new. The handle assumptions were wrong. I wonder if the down-firing port assumptions are wrong too. I plan to keep an open mind (or ear).
 
#69
KJung said:
Confusing thread. People talking about subwoofers with downfiring woofers, etc. has nothing to do with port placement.

Are people saying that the actual PORT is on the bottom of the cab? If so, that is strange. Kind of like putting a rear port 1/2" (assuming there are rubber feet on this box) from the wall, which is a no-no as far as I know. I guess they could greatly oversize the port to make up for the lack of distance from the floor.

Again, confusing thread, not sure if this is the case or not. Other than that, looks like yet another 210 with a tweeter. Lots of competition out there, especially given that it isn't a neo box.

Edit: If it is a passive radiator (i.e., a port alternative like used in the Walkabout cabs), then I guess it doesn't matter, since no air is being pushed out of the port.
Click to expand...
I was hoping you would find this thread, Ken.
 
#71
will33 said:
Building an instrument is not building a speaker.

The guy is insinuating magnet material itself affects tone.

He's saying they're making lightweight cabs by using ceramic mag. drivers, 3/4 ply and just making them really small, yet still claiming deep response and big spl.

They're putting a port on the bottom that will be at least partially, if not fully blocked, depending on how you sit the cab on the floor and what type of floor it is.

There's claims there that just don't hold water. Notice nowhere did I say it sounds bad.
Click to expand...

+1

The linked article credits "Jo Bassi Engineering (in particular designer and F Bass player Ian Taylor)". So George may not be the designer, but he must've at least signed off on that marketing prose. :rolleyes:

Also from the article:
The cab also features a novel "kick-back" system for easy monitoring of your stage sound and to reduce stage resonance if required.
Click to expand...

If the cab kicks back, that's yet another variable affecting the bottom port (the duct will be much shorter when tilted back). A strange combination of features.
 
#74
Okay guys, I played one last week and ordered one right away after playing. You would not believe the sound of this. It is smaller than you would think. It weighs 46lbs but uses the regular magnets (non Neo) drivers. The Ports are approx 3" round and at least 6-8" to the inside of the cab. One is on the back and the other is on the bottom. There are special feet on the bottom of the cab in order to ensure the height from the floor so that it doesn't "huff" and to ensure the air can get out.
Can you imagine Fbass putting their symbol on a sub par product. I cannot. You guys on here talk prior to even hearing a cab and say cobbled together etc. Funny no one except Mutha Funk has tried it. I tried it with a Markbass Tube 800 and couldn't get the volume past 2 with appropriate gain. It would've blew the door off the shop. The cabinet was clear and had plenty of Low 'B'. I can't wait to replace my Eden XLT, my Markbass 210HLF or my old Euphonic Audio 210. When I get 1 of these bad boys, I'll be sure to do a full review then.
 
#75
Some design changes here then.

Equal size ports.....good.

You don't need "special" feet. You need taller feet so as to not choke off the bottom port. That is still set on it's ear when stacking the cab on it's side as stated in the earlier sales hype. It would be possible to do that in such a way as to get 2 different workable voices though if done right.

Bringing the ports that deep into a small box indicates they found the point of no return in trying to tune a small box low while maintaining sufficient port area that fits their driver. Basically shrank it as much as they could. That's not inherently bad depending on the design goals, it's the Schroeder approach in a way.

But, IF, it plays as loud as you describe, the low B is hyped output between 120-240hz, not bass. It physically can't play that deep, and be that loud, and be that small, all at the same time. You can't have your Kate and Edith too.

As impressive as it may seem, it really doesn't take much of a speaker to shake a wall or rattle a glass. All in needs is hyped up output in that one little piece of bandwidth that actually makes said wall or glass resonate.


Anyway, the earlier description may've been some prototype or early model....one with some pretty basic mistakes. This newer description seems like they fixed an "oops" or 2.
 

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