Here is what I want in a speaker cabinet specification

rpsands · #1 06-11-2011, 05:05 PM

Specifications 112 Full Range

Is this too much to ask? NO!

If Acme can do it, so can everyone else. Get crackin!

babebambi · #2 06-11-2011, 05:14 PM

fdeck · #3 06-11-2011, 05:40 PM

I suggest a ported 12/6 with tweeter if desired. The graphs look nice.

will33 · #4 06-11-2011, 05:55 PM

The graphs look great and with the spl low like that it shouldn't be too difficult to design something close with off the shelf drivers. Making it small and uber light could get spendy.

rpsands · #5 06-11-2011, 05:59 PM

Sorry, the point of this is not that I want to achieve these specs (I use a fEarful already) --

This level of detail and accuracy is what I want in bass cabinet specifications. off-axis charts, Spl chart, realistic power handling numbers, accurate weight, etc.

will33 · #6 06-11-2011, 06:03 PM

+1 and then some for Acme then. Especially FR charts on and off axis.

fdeck · #7 06-11-2011, 06:11 PM

Quote:

Originally Posted by rpsands

Sorry, the point of this is not that I want to achieve these specs (I use a fEarful already) --

This level of detail and accuracy is what I want in bass cabinet specifications. off-axis charts, Spl chart, realistic power handling numbers, accurate weight, etc.

Quite agreed.

MuzikMan · #8 06-11-2011, 06:13 PM

Look, up in the sky...............it's an idea!!!

will33 · #9 06-11-2011, 06:22 PM

It's not too much to ask but then again if someone who knew how to read a chart saw one for a typical 410 they wouldn't buy it.

How much salesman BS do you suppose it would take to get someone to believe all the off axis response loss was a good thing?

Gotta be a drinking game in there somewhere.

MuzikMan · #10 06-11-2011, 06:26 PM

I have hope that places like Talkbass are educating the bass player community at large. Once the masses become aware of what a good design is there might be a change in philosophy by the big boys..................or I might be delusional and living in a bubble!

Passinwind · #11 06-11-2011, 06:55 PM

Quote:

Originally Posted by rpsands

Sorry, the point of this is not that I want to achieve these specs (I use a fEarful already) --

This level of detail and accuracy is what I want in bass cabinet specifications. off-axis charts, Spl chart, realistic power handling numbers, accurate weight, etc.

The numbers below 250Hz are from a model. Just sayin'...

rpsands · #12 06-11-2011, 07:16 PM

Quote:

Originally Posted by Passinwind

The numbers below 250Hz are from a model. Just sayin'...

I think that's a pretty standard accepted method right?

Regardless, modeled response in the low end is a lightning leap ahead of the competition.

fdeck · #13 06-11-2011, 07:25 PM

The model below 250 Hz is probably acceptably accurate.

staindbass · #14 06-11-2011, 07:31 PM

the three ranges are covered by three different measurements in the notes under the graph. it would be nice to see all from one as your ear would hear it,like a real time analyzer with pink noise. i think thats why it appears as a lightning leap above the competition.

will33 · #15 06-11-2011, 07:34 PM

I find my shadetree homebrew models to sound pretty accurate. Going by ear here not scientific measurements but the act and sound like the graph says they should and I'm pretty sure Acme would use higher caliber software than free download stuff.

will33 · #16 06-11-2011, 07:38 PM

Quote:

Originally Posted by staindbass

the three ranges are covered by three different measurements in the notes under the graph. it would be nice to see all from one as your ear would hear it,like a real time analyzer with pink noise. i think thats why it appears as a lightning leap above the competition.

Considering most of the competition doesn't give specs at all and most of what little info they do give is voodoo fantasy most anything accurate would be lightyears ahead.

staindbass · #17 06-11-2011, 07:41 PM

i bet if you put that in a club and measure it with an analyzer from 10 feet away, it will dive off below 110 hz pretty quick. im not knocking it, but i dont want you to believe you will get a big low end sound out of it onstage as advertised.

billfitzmaurice · #18 06-11-2011, 07:46 PM

Quote:

Originally Posted by Passinwind

The numbers below 250Hz are from a model. Just sayin'...

Ah, you see fine print, Grasshopper.

The charts aren't totally accurate, being a compilation of modeled response, nearfield and gated measurements. They were probably done that way due to the lack of an anechoic chamber that would allow a broadband measured half-space result. There's nothing wrong with this method, and the result is close enough to call it good.

Quote:

it would be nice to see all from one as your ear would hear it,like a real time analyzer with pink noise

That's what you don't want, because unless you measure it in an anechoic chamber you're measuring the room as much as you are the speaker, and you'd get a different result in every room. Speakers are measured anechoic half-space specifically to take the room out of the equation, so that all comparisons are apples to apples.

Quote:

I'm pretty sure Acme would use higher caliber software than free download stuff.

Much of today's freeware is just as good as the high priced software of yesteryear. Many of us professionals have gone to freeware for its ease of use. I use HolmImpulse myself, its only limitation is that instructions are non-existent, its assumed that you already know what you're doing.

staindbass · #19 06-11-2011, 07:52 PM

Quote:

Originally Posted by will33

I find my shadetree homebrew models to sound pretty accurate. Going by ear here not scientific measurements but the act and sound like the graph says they should and I'm pretty sure Acme would use higher caliber software than free download stuff.

i agree and im sure your hombrew stuff sounds great. i think instrument speakers should not be treated like hifi speakers, a hifi speaker is trying to accurately reproduce whats going into it. if you use that for an instrument, and its flat, the only place you get character or tone/mojo is from the electronics and pickups. you are now missing one third of the tonal palette to create your sound with. i voiced my system by ear, towards what i want to hear. that way i need less eq, and its clearer. the horns are loud so i dont need to boost it and use up amplifier power. i crossed them over high enough so it never gets clacky and stays metallic sounding no matter what string i play or technique i use, stuff like that. voice by ear for instruments, and by measurements for hifi. thats my 2 cents on the flat bass cabs.

will33 · #20 06-11-2011, 08:00 PM

Quote:

Originally Posted by staindbass

i bet if you put that in a club and measure it with an analyzer from 10 feet away, it will dive off below 110 hz pretty quick. im not knocking it, but i dont want you to believe you will get a big low end sound out of it onstage as advertised.

It wasn't measured on a stage..boundries would throw off all the measurements. Some of it apparently wasn't measured at all but modeled but as long as it's close to accurate I can look at a chart like that and picture in my head how it will sound in practice....Can't do that with most stuff because the measurement isn't there in the first place.