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Discussion in 'Amps and Cabs [BG]' started by JazzbassArt, Mar 19, 2009.
Add a midrange and a crossover. Problem solved.
im not lookin got alter the cab - just put a good speaker in it
That works. I re-loaded two Mesa Diesel 115's with 3015's and was very happy with the outcome.
Why? If your amp's power output at 4 ohms isn't twice what it is at 8 ohms, you won't realize a noticeable volume difference between two otherwise identical cabinets (or so I've read here on TalkBass).
it is 2x what it is at 8ohms - i would do this to get the same amount of power out of 1 cab instead of having to play out of 2
What amp is that?
Even then, it should only be barely noticable...not a lot louder.
Was there a 4 ohm EVM-15L? I thought those were 8 ohm. Are you building a new box or replacing an 8 ohm EVM-15L, and want a 4 ohm driver that sort of sounds like the old EV's?
From Eminence, the Kappa 15C, Basslite C2515, Legend CA154 are 4 ohm drivers (info from usspeaker.com...eminence may have different specs.)
i was at first considering getting 1 4ohm 15 to dump the full load into 1 cab. (less to carry around)
i have now decided to keep both 15 cabs, but try to get matching speakers in them so the volume coming out of them is more even. right now the dietz is louder than the trace.
my original interest was finding a new speaker like the evm-15L because i like the way mine sounds but it is old and should probably be replaced.
is there a modern equivalent to said model?
hartke 3500 350 watts @ 4 ohms
so youre saying a 4 ohm 1x15 would be pretty much as loud as 2 8ohm 15's? assuming the handling of all speakers is adequate.
The 2 8ohm 15" will be louder than 1 4ohm all other things remaining equal (the power increase with 1 4ohm will not make up for the loss of speaker area). Unless the amp puts out 10 watts at 8 ohms/ 100 watts at 4 ohms.
I built one each of the TL806 (1x12) and half of a TL806Q (2x12). Both are great cabs for bass.
According to the manual (http://s3.amazonaws.com/samsontech/related_docs/ACF18FA.pdf), the HA3500 is rated 240 watts into 8 ohms and 350 watts into 4 ohms. If you took two otherwise identical cabinets, the amp pushing the 4 ohm cabinet wouldn't be noticably louder than the same amp pushing the 8 ohm cabinet. That's why I questioned the "need" for a 4 ohm speaker.
If you added a second speaker, you gain a lot of sensitivity due to the added cone area and acoustic coupling of the two sources. I'm told that adding the second speaker gives you 3 dB and coupling of the two together gives you another 3 db. Adding 6 dB is like four times the amplifier power.
I am interested in building one of these for use with a V4B. I'm thinking about the 3015. Anyone use these with a 100 watt tube head? I need a single 15 for when I don't want to shlep the 2x15 around.
TBer "Pedro" has a V4B head and an Orange 1x15 (similar design). You might want to send him a PM and see if he has any comments.
just the info i needed thank you!
I love running my tube amps through my TL606.
I have a V4B (100W), an SVT (300W) and a Guild Thunderbass (60-80W). They all sound great paired with the TL box, which I built to spec from the old EV plans, coated with Truck bed liner and loaded with an EVX-155
I will post up pictures later tonight. Also, I will happily email you sound clips of an old Fender P with flats through the V4B and the TL cab if you pm me with your email address.
adding a crossover and a midrange speaker will not change the cab's impedance. it would still be an 8 ohm cab.
if you were to build a xover and midrange in a seperate cab, then plugging that in to my amps other output wouldnt overload said xover and midrange?
just thinking that my amp would then kick 175watts into each cab, and how would that cross over be able to process the freq accepted and distribute them to both cabs?
There's my TL 606, loaded with EVX-155 and coated with truck bed liner.
I'm interested in building one of these to go mate with a Fender Bassman 300. I don't anything about WINid. I was wondering, if I changed the internal deminsions from 14x22.25x17.75 to 13x24.5x17.75, how much would this change the volume, tuning, etc. I am planning to add inset handle and casters, that will take up some of that added volume. Thanks for any input.