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Bass Speaker Replacement Advice

C

cat325xtra

Jul 2, 2013
5
0
Whangarei, NZ
#1
Hey, I have a mighty Marshall Heritage 7215 Cabinet, being abused by my G.B. Shuttle 9.0 on a regular basis.
The current 15" 600w cones in the cab are starting to display signs of old age and the sound is deteriorating, might have something to do with the Benz 9.0.

I want to replace the 15" cones with some new ones which will give me some sweeter lows and smoother tops for the Classic Rock I play in our band.

Can anyone suggest some suitable Speaker replacements which will handle the G.B. Shuttle 9.0 and run the Cab at 4 Ohm.

Cheers
 
#2
What is a "7215"? Best bet is to have the originals reconed if they ever sounded any good to begin with. Aside from that, measurements of the interior of the cabinet, interior of the tuning ports (if any) and a general description of the sound you're after are in order.

Bass speakers are pretty dependent on the box they're in for making the lower frequencies. Unlike guitar drivers...where the box is mostly just a device to mount them in so they're not just rolling around on the floor. ;)
 
#4
Thanks guys, RockNRollAl is right.
I understand the 'Box' is important for generating the low frequencies, however I was really just hoping someone 'intelligent' out there could give me some short-cuts to what may have worked previous.
The original speakers were ok, but nothing stunning, so I don't think re-coning them will give me more power handling (well for long anyway), I was wondering about DVC speakers and such to slightly 'widen' the tone.

I play a Fender Jazz 5-String 24 Frett and it is able to produce some staggering low notes, I just really want to capture as much of that as I can without mellowing the high notes.

Hope that all makes sense.
Cheers
 
#5
if money is of no object you can go with JBL K-140's or E-140's. I'd go with the E-140's. The JBL's go for about $200-300 and you gotta get them off ebay and such. I have used a 5 string J-bass through mine, i use an Ibanez ATK805E as my main axe, its a 5 string and such and it sounds great thru the E-140's. if you are more money conscious, i recommend the Eminence legend CA154, which run around 90 bucks.
 
#6
Cheers Bassguy97x,
I wonder though if they have the power handling at 400w RMS, considering the existing Marshall speakers are 600w?

I also run a Boss M-20B effects unit and am wireless via a Samson Airline Cordless unit so I can act the idiot at gigs.

I pretty much punch my gains up all through the pre-amping and even though the Shuttle 9.0 says it is 900w, and most of us believe it is actually about 650-750w, I am up there in output.
Our Drummer is a hard-core skin-beater and in the size venues we play at, I need to be punching some volume out.

As a side, I have thought about getting a 2x8" Bin to sit atop my Marshall Bin to cut the highs across for some smaller venues.
 
#7
Hey I have been suggested some Fusion CA-CW150 Monsta SPL15" 1500w RMS DVC 2ohm Speakers to run in Series by a supplier, saying that these have enormous reflex in car audio competitions.
Are they compatible replacements for Guitar Audio?

Might be a dumb question, but I have no idea.
 
#8
cat325xtra said:
Cheers Bassguy97x,
I wonder though if they have the power handling at 400w RMS, considering the existing Marshall speakers are 600w?

I also run a Boss M-20B effects unit and am wireless via a Samson Airline Cordless unit so I can act the idiot at gigs.

I pretty much punch my gains up all through the pre-amping and even though the Shuttle 9.0 says it is 900w, and most of us believe it is actually about 650-750w, I am up there in output.
Our Drummer is a hard-core skin-beater and in the size venues we play at, I need to be punching some volume out.

As a side, I have thought about getting a 2x8" Bin to sit atop my Marshall Bin to cut the highs across for some smaller venues.
Click to expand...


the JBL E-140 15's have a power rating of 400W RMS per speaker, with 2 id say they will take 600W easy, the eminence take 300 apiece for a total of 600W, so in this case wattage isnt a problem
 
#9
cat325xtra said:
Hey I have been suggested some Fusion CA-CW150 Monsta SPL15" 1500w RMS DVC 2ohm Speakers to run in Series by a supplier, saying that these have enormous reflex in car audio competitions.
Are they compatible replacements for Guitar Audio?

Might be a dumb question, but I have no idea.
Click to expand...


these particular subwoofers, though they take alot of power, they lack the upper frequency response of standard bass speakers. let me give you an example; the JBL e-140's i talk about, the upper frequency response starts so drop out at about 2600hz and the EMI Legend drops out at about 3000hz. the woofers used in car audio begin their decay at about 400hz. the highest ive ever seen is about 900hz. the ones you have in mind decay at about 200hz, which isn't bad for car audio, but not favorable in bass guitar...as least not for me.... :p


oh and just so you know....there is no such thing as a dumb question....unless the answer is so obvious a three year old could tell you :p
 
#11
Also - I would never run all speakers in a cabinet in series because if one of them blows as an open circuit all of them are dead. A parallel connection allows a cabinet to continue playing if one goes on you. With high power speakers that is not terribly likely but you play very loud if you have worn out two 300W 15s. :)
 

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