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Barefaced Bass 'BIG TWIN' ... lets talk about it...
- Thread starter pablomigraine
- Start date
multi woofers in a box - (incidental drivers) vertically aliened woofers are best, with staggered woofers second best and horizontally aliened woofers are the worst.
Two Big Twins? - with a slave amp, or does your amp do 2ohms?
The 1515/66/T has staggered woofers (boo), and the Big Twin has vertical woofers (yea).
Yeah gonna hafta rock a big nasty crown power amp for this....
- Feb 16, 2008
- 21,240
- 23,638
- Disclosures
- John K Custom Basses
+1
The reason why its so important for full range drivers, is because those drivers are midrange drivers as well as LF and sometimes HF drivers.
From looking at cab designs and reading post I think BFM and Alex will agree multi woofers in a box - (incidental drivers) vertically aliened woofers are best, with staggered woofers second best and horizontally aliened woofers are the worst - whereas greenboy and agedhorse may not agree - and it looks like JohnK doesn’t agree.
- Dec 18, 2000
- 13,201
- 340
- Disclosures
- greenboy designs: fEARful, bassic, dually, crazy88 etc
A few degrees off axis for dedicated woofers in a cab with dedicated midrange drivers is nothing you, bandmates, or an audience is ever going to notice.
If the woofs were way more staggered, or if the midrange drivers were staggered off the y axis, it would mess up the imaging though.
If the woofs were way more staggered, or if the midrange drivers were staggered off the y axis, it would mess up the imaging though.
alexclaber
Commercial User
With woofers that are only working up to around 1kHz there's no sonic difference between absolutely vertically aligned and slightly staggered off from the vertical. By moving the port from the bottom of the Big One to the side of the Big Twin we got the height to fit the drivers in vertically and that gave us the sonic advantage that it stops the height of the cab plus length of the port acting as a short (unwanted) transmission line, so the cab the performs as designed, and if you're playing very loud the cab is better cooled due to the chimney effect of the port so a fraction more power handling and less power compression. We also found this approach got us a stronger and stiffer cab for the same weight. Not big differences at all but as we could make some beneficial tweaks then why not?
I think I have seen BFM post more than a few times that there is give and take in every cabinet design. This discussion has gone from "mixing full range drivers is bad" to "which crossed over design is best?" I think they all have their good points, and every design will have some weaknesses. What can be said is that there is a strong sense of "as little compromise as possible" across the board. None of these designers have gone "hey let me put anything less than the best drivers in this cab, it will save a buck or two."
Play your bass through a a Peavey IPR 1600 and then plug it into a Crown XTI-1000 or even an XLS 802.... and you'll see immediately why I dont mind the few extra pounds....
Play your bass through a a Peavey IPR 1600 and then plug it into a Crown XTI-1000 or even an XLS 802.... and you'll see immediately why I dont mind the few extra pounds....
So you believe you get different tone due to the type of power amp?
And if that is the case, please provide me with links that support this so I may educate myself on the reasons why.
Thank you greenboy and Alex (I’m going to soak that in) and hopefully we can get BFM and agedhorse to chime in too - and maybe Duke?
