HELP!!!! :Bass Guitar Cabs

[jurepar]

Greetings!

I recently checked alot of posts on designing a cabinet for electric bass and I hope I am not a too much trouble if I ask you some questions.
I wanted to buy an original Trace Elliot cabinet for my amplifier, but I spotted a good bargain on four 10" drivers. They are neodimium B&C 10HPL64. I am a little worried about their resonant frequency (61Hz) and that if I would build a cabinet with these in them that they wouldn't give out enough bottom end. I calculated some variations in WinISD and I am a little sceptic about it. I also have another cabinet with one 15" Eminence Kappa Pro LF-2 and only thing that bodders me is it's frequency range (up to 1.8kHz). I know that I could combine both boxes, but I have practice in two different places and I really don't want to move one cabinet all the time, so I would use 4×10" also for concerts (or maybe 15" too, but that would look like I'm showing off )

Thank you in advance for your opinions and answers,

Jure

[Brett]

Originally posted by jurepar
Greetings!

I recently checked alot of posts on designing a cabinet for electric bass and I hope I am not a too much trouble if I ask you some questions.
I wanted to buy an original Trace Elliot cabinet for my amplifier, but I spotted a good bargain on four 10" drivers. They are neodimium B&C 10HPL64. I am a little worried about their resonant frequency (61Hz) and that if I would build a cabinet with these in them that they wouldn't give out enough bottom end. I calculated some variations in WinISD and I am a little sceptic about it. I also have another cabinet with one 15" Eminence Kappa Pro LF-2 and only thing that bodders me is it's frequency range (up to 1.8kHz). I know that I could combine both boxes, but I have practice in two different places and I really don't want to move one cabinet all the time, so I would use 4×10" also for concerts (or maybe 15" too, but that would look like I'm showing off )

Thank you in advance for your opinions and answers,

Jure

Why use a 4x10?

A single Eminence 3015LF or BMS 15N630 is a correctly ported cab will whomp it in terms of LF response and SPL and not run into the typical excursion limits that plauge commercial BG designs. Add a simple xover and a 6 or 8 above it and you'll have a cab that will outperform just about anything out there. And it'll be cheaper, lighter and probably a much more useable form factor than a 4x10 which is merely a historical oddity.

http://www.talkbass.com/forum/showthread.php?t=368003

[sreten]

Originally posted by moose54

btw did anyone have a look at a reasonable solution for the Kappa Pro 10's in a volume of 140L+ ???? prob not but doesn't hurt to ask

Hi,

140L is somewhat large for 4 of those, they seem to be spectacularly
useless at producing bass in any sort of cabinet but no doubt this also
prevents overexcursion when plied with massive amounts of juice.

/sreten.

Originally posted by jurepar

I spotted a good bargain on four 10" drivers.
They are neodimium B&C 10HPL64.

Hi,

4 in a 120L box with a vent tuned to 40Hz will work with some
low bass boost and plently of juice on tap. This is not ideal for
playing reggae but might be fine for your sound and is likely
no worse than many other 4x10's, + more efficient than most.

/sreten.

[jurepar]

Why use a 4x10?

I must admit that I have never really tested 4×10 cabinet (played a little on some though) to say that it's better than 15", but I really like them both. I also talked to some guys that say that 15" is just to muddy and slow in response, but on the other hand I don't play alot of really fast lines. I am really happy with Kappa but I like that bright (more defined?) sound that I have heard on 4×10, and as I said before, it bothers me that it can go just to something about 1.8kHz (slap just doesn't sound right, except in low frequencies where it rocks ) I have also RCF HF driver at home which I would try with 4×10 if building one (I tried it on my cab but it has a big frequency hole from 1.8 - 3.5 kHz)

Hi,

4 in a 120L box with a vent tuned to 40Hz will work with some
low bass boost and plently of juice on tap. This is not ideal for
playing reggae but might be fine for your sound and is likely
no worse than many other 4x10's, + more efficient than most.

/sreten.

I don't play reggae so that doesn't bother me at all. I saw that some other bass cab manufacturers rate their cabs from 35Hz up and as I see it, either they have one hell of drivers or they overrate their cabs (I hope I wrote this right )

Jure

[Stormrider]

I've been wondering what to do for my first bass cab. I think i'm going to use the Kappalite 3015LF, with the 8" Beta or Alpha driver above it. I'm undecided if i should add a horn, but if i do it will be the Selenium D210Ti.

Modeling shows that around 4.5 - 5ft^3 should be good for the 3015LF, tuned to about 40 - 45hz. The Beta 8" needs a small sealed enclosure, like .2ft^3. The Alpha could either be run open back, or in a small stuffed sealed enclosure.

I'll probably use an active crossover, the CX2310 from Behringer and a few hundred watts of power.

What would be a good preamp to use for this setup? Hows the ESP guitar preamp?

[jurepar]

I have to correct myself for the last post on why use 4×10". As Brett said it is merely a historical oddity. I have spend last few hours reading posts on TalkBass forum about those cabs, and I must admit that it changed my perspective on bass cabinets. I can imagine the advantages (I haven't actually heard this kind of bass cab live) and after reading all the written I decided to try and build one of these.

Thank you for your time and great replies,

Jure

[wounded horse]

New here so hi to all. Go to:-

http://www.billfitzmaurice.com/DR250.html

and read the reviews.
I'm about to build an OMNI fullrange with a 3015LF and an 8" midhorn. The plans are comprehensive and cheap as chips. The forum is great. Lots of pix and reviews and no sales hype at all.