| any electric bass players? im building a bass guitar cab - Click HERE for Original Thread |
| Nigel Goodwin |
| If you fit a tweeter, make sure you fit a switch on it - many bass players prefer the sound without the tweeter, and such cabs commonly have switches on them. But most bass cabs probably don't include tweeters at all. |
|
|
| turbolx5oh |
Tell your friend to check out Avatar's Speaker cabinet. I own a couple of his guitar cabinets and they are very nice quality. The bass cabinets that he sells has a tweeter with crossover and volume control and they are really inexpensive.
Avatar Bass Cabinet. |
|
|
| Snikpout |
Maybe you could try to build a Bill Fitzmaurice cab, like the Omni15, with an Eminence Kappalite 3015LF, MR8A, ASD1001 and Selenium horn.
Mine is just finished (today !) :
Amazing ! |
|
|
| KOA |
| thanks for the suggestions. i definitely will put on a switch for the tweeter. gotta think about horn loading the woofer. i guess the switch would turn off the tweeter and bypass the lowpass on the woofer. i haven't decided whether im going to lowpass the woofer or run it full range and use a higher shallower crossover on the tweeter. that would make the switching slightly easier. most likely going with a bass reflex just for cosmetics and ease of construction. the two 15 box looked cool but a harder to transport. the portability was of moderate to high concern thus the single 15. |
|
|
| KOA |
| do you guys think i should go with the phenolic compression driver and keep the dispersion wide on the woofer but lose above 9k or should i go with the titanium compression driver and compromise dispersion on the woofer using it up to 1.5-2k and the tweeter from 2k up to 20k? |
|
|
| Nigel Goodwin |
| quote: | Originally posted by KOA
thanks for the suggestions. i definitely will put on a switch for the tweeter. gotta think about horn loading the woofer. i guess the switch would turn off the tweeter and bypass the lowpass on the woofer. i haven't decided whether im going to lowpass the woofer or run it full range and use a higher shallower crossover on the tweeter. that would make the switching slightly easier. most likely going with a bass reflex just for cosmetics and ease of construction. the two 15 box looked cool but a harder to transport. the portability was of moderate to high concern thus the single 15. |
You wouldn't normally bother low-passing to the bass unit, just a high-pass to the tweeter - so it only needs a simple single pole switch.
It's rare to have horn loading on a bass guitar cab, they are usually just reflex - size and weight are usually pretty important!. |
|
|
| KOA |
| yeah i just got the driver today so we are going to take it down to genesis advanced technologies and get it tested so we can make the appropriate crossover. |
|
|
| Nigel Goodwin |
| quote: | Originally posted by KOA
yeah i just got the driver today so we are going to take it down to genesis advanced technologies and get it tested so we can make the appropriate crossover. |
You don't think you're over complicating this?, it's NOT a HiFi speaker, it's for a musical instrument - you're not looking to get a flat frequency response - chuck it in a box and play a bass through it and see how it sounds!. |
|
|
| pneuma |
Personally, I wouldn't use a compression driver. I'd use soft domes. Those compression drivers will be way overkill @ 107db sensitivity.
I'd probably forget the tweeter alltogether, and use a 6" mid in a standard 2-way configuration. Chances are you can get a decent mid up to 5 or 6khz, which should be sufficient.
If I had to use a tweet, I'd look at a Morel MDT37 (madisound) or something like that. Maybe two Audax TW025's.
And if you use a tweet, put in a L-pad with an on/off switch.
I'd probably go with a Kappalite 3015LF also. But I see you've already bought your woofer.
P. |
|
|
| Fenris |
| quote: | Originally posted by pneuma
I'd probably forget the tweeter alltogether, and use a 6" mid in a standard 2-way configuration. Chances are you can get a decent mid up to 5 or 6khz, which should be sufficient.
P. |
I'm helping a friend with a bass cab and amp and that's the route we're taking. No point in anything about about 9Khz, and the 6" should cross over better to a 15". We'll probably have to use two 6" mids to match the sensitivity of a single 15 though. |
|
|
| pneuma |
| quote: | Originally posted by Fenris
I'm helping a friend with a bass cab and amp and that's the route we're taking. No point in anything about about 9Khz, and the 6" should cross over better to a 15". We'll probably have to use two 6" mids to match the sensitivity of a single 15 though. |
The Eminence LA6-CBMR is ~ 98dB, takes 150w RMS, and is sealed/closed back. You don't have to make a separate cab for it. Weighs about 7lbs. Should be good to ~ 5khz.
P. |
|
|
| KOA |
| that horn looks very interesting. and a good deal. we might forgo the testing at genesis. what type of attenuator would i use? |
|
|
| KOA |
| yea i was thinking i'd get a couple of those diaphrams just for testing and fun, and the lpad sounds like a good idea also. |
|
|
| freddi |
hi Snikpout - do you think Omni 15's bass section (and perhaps the whole cabinet) would be good for home stereo?
Freddy |
|
|
| Nigel Goodwin |
| quote: | Originally posted by freddi
hi Snikpout - do you think Omni 15's bass section (and perhaps the whole cabinet) would be good for home stereo?
|
Most probably not?, musical instrument speakers and HiFi speakers are completely different items, with completely different purposes. |
|
|
| sreten |
| quote: | Originally posted by freddi
hi Snikpout - do you think Omni 15's bass section (and
perhaps the whole cabinet) would be good for home stereo?
|
| quote: | Originally posted by Nigel Goodwin
Most probably not?, musical instrument speakers and HiFi speakers
are completely different items, with completely different purposes. |
Hi,
Unlike a lot of bass cabinets the Omni15 would also make a pretty
good PA loudspeaker. Any good PA speaker for home use with a
decent amplifier is capable of playing at mind-numbingly loud levels.
At sensible levels a PA speaker struggles against a hi-fi speaker
and basically has poor bass extension for the cabinet size, but
they can be the only loud option for flea powered amplifiers.
:)/sreten. |
|
|
| phase_accurate |
| quote: | | Most probably not?, musical instrument speakers and HiFi speakers are completely different items, with completely different purposes. |
I wouldn't bet on this one. German mfgr "Glockenklang" once built a high-quality threeway bass-box. The standard setup was in stereo BTW.
Regards
Charles
Edit: You will find a picture of the setup in the upper part of the following document:
http://www.glockenklang.de/pdf/de/prospekt-03-06.pdf |
|
|
| Nigel Goodwin |
| quote: | Originally posted by phase_accurate
[B]
I wouldn't bet on this one. German mfgr "Glockenklang" once built a high-quality threeway bass-box. The standard setup was in stereo BTW.
] |
Like I said, designed for different purposes - a bass guitar cab is designed for maximum volume from the bass guitar, a HiFi speaker is designed for maximum quality and bass extension, and sacrifices volume to achieve it.
But interesting looking speaker though - I wonder how well it worked?, and if it was intended for bass guitar or multi-purpose use?. |
|
|
| phase_accurate |
It was actually aimed at bass-players. The whole setup was exorbitantly expensive, in the order of a small car back then. It seems that it was quite heavy and impractical. But a tester remarked that it was basically a high-quality and high-SPL stereo.
I am of course aware that stage equipment is optimised for the most SPL per -buck, -kilo, -watt etc.
But hearing a bass played through a system that is really broadband, low distortion and high SPL is quite a treat.
Regards
Charles |
|
|
| sreten |
| Hi, definetely not your average mono 4x10 + 1x15 stack, ;)/sreten. |
|
|
| freddi |
maybe the tapped horn thread will lead to modeling mutual-load cases like Bill's Omni.
here's what I've got laying around - not much rear chamber so cutoff is very high
 |
|
|
| phase_accurate |
Don't like those cabs but I like the instrument !
Charles (playing a DMZ 6000B) |
|
|
|
|
