I know alot of you don't like 8-10 cabs but i do and i need some imput please. I have a carvin br8-10 bass cab with a 1200 watt rating and imp of 4ohms. i want to replace all of the speakers with Eminence Delta 10's with 350 watt ratings and imp of 8ohms a piece. My question to you is how do i do this and still keep a 4 ohm load?
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cab tech question
- Thread starter Theabyssbass
- Start date
Hi.
You wire each pair parallel. (=4*4Ohm)
Then the both of the two pairs in series. (=2*8Ohm)
Then the two quads in parallel. (=4Ohm)
Or
You wire each pair in series. (=4*16Ohm)
Then the both of the two pairs in parallel. (=2*8Ohm)
Then the two quads in parallel. (=4Ohm)
Do use WinISD or eqvivalent to properly tune the enclosure too.
Regards
Sam
You wire each pair parallel. (=4*4Ohm)
Then the both of the two pairs in series. (=2*8Ohm)
Then the two quads in parallel. (=4Ohm)
Or
You wire each pair in series. (=4*16Ohm)
Then the both of the two pairs in parallel. (=2*8Ohm)
Then the two quads in parallel. (=4Ohm)
Do use WinISD or eqvivalent to properly tune the enclosure too.
Regards
Sam
I hope you don't think that putting in 350w speakers will give you 2800w of power handling. Doesn't quite work that way.
Abyss, I wouldn't do this ... From what I understand Delta 10's are not bass speakers. Get legend bp 102's instead. 
I hope I helped you out. Cheers.
I hope I helped you out. Cheers.
I was afraid you were going to ask that.
I don't know the scientific explanation, but I know it doesn't work that way because of the design of the enclosure being just as important. Also, considering that the Delta isn't a bass speaker, it may not have enough Xmax to reproduce the lows at that volume without bottoming out and blowing. Again, I'm no audio scientist but the audio scientists on here all say it doesn't work that way, and even though I can't remember why they said it doesn't, theyre the experts.
2 350w speakers wired in series have a max cap of 350w.
2 wired paralell have a max cap of 700w (in theory)
8 x 8 ohm speakers wired/series paralell can be 4 ohms, with a
max power cap of 1400w (in theory)
hope those are not heavy drivers!!
2 wired paralell have a max cap of 700w (in theory)
8 x 8 ohm speakers wired/series paralell can be 4 ohms, with a
max power cap of 1400w (in theory)
hope those are not heavy drivers!!
The wattage ratings we are talking about are thermal - and Jimmy you are correct - the xmax is more of a problem, especially with these speakers.
Strictly speaking thermal watts, it doesn't matter if they are wired series or parallel. The power will divide equally (as long as they are the same impedance, of course).
Strictly speaking thermal watts, it doesn't matter if they are wired series or parallel. The power will divide equally (as long as they are the same impedance, of course).
There is also the fact that drivers and the enclosure they are mounted in have to match. If they don't then your results are going to be a crapshoot at best. Usually an eclosure is designed for a specific driver. Anything else and you get good results only if you are very lucky. More often the new drivers sound like crap and can be damaged. But it is your cabinet, do as you will!
Paul
Paul
I can attest to that last statement. I bought a set of four Eminence Legend BP102s to install in my SVT410HE cab. The speakers sounded great at lower volumes, but when pushed a little, they farted out. The box wasn't designed correctly for the speakers to move the way they were designed to.
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But isn't the cab still going to make the overall power handling level come down considerably? If it didn't, why would Basson use speakers with such grossly oversized magnets to make their 810 do 2000w?
Rick Auricchio
Registered Bass Offender
+1 to Jimmy.
Most speakers reach their mechanical limits long before they start to overheat from wattage. The cabinet design makes a huge difference in this area. A cab not matched to the speakers will probably let them fart out (and later tear up) at very low power.
A second consideration is power compression. This is a point where more power just creates heat and no more loudness. Pushing more wattage will eventually burn up the driver. Here again, cab design and matching make all the difference.
A well-designed, well-matched cab will get the most out of the speakers.
Mrkreuz, you can ignore the mumbo-jumbo. Just buy a properly-designed cab from a reputable manufacturer. If you want to build or modify a cab and have something really good, then you have to learn the terms and skills.
Most speakers reach their mechanical limits long before they start to overheat from wattage. The cabinet design makes a huge difference in this area. A cab not matched to the speakers will probably let them fart out (and later tear up) at very low power.
A second consideration is power compression. This is a point where more power just creates heat and no more loudness. Pushing more wattage will eventually burn up the driver. Here again, cab design and matching make all the difference.
A well-designed, well-matched cab will get the most out of the speakers.
Mrkreuz, you can ignore the mumbo-jumbo. Just buy a properly-designed cab from a reputable manufacturer. If you want to build or modify a cab and have something really good, then you have to learn the terms and skills.
Nothing wrong with that approach, either. Did it for decades and thought I was happy. And as Rick said, buy a cab you like and rock it. We're just trying to save the OP a little money buying speakers that won't work like he thinks they will. But since he hasn't replied since the first reply, he's probably already bought them and blown them so this conversation is probably mootAh I hate all this mumbo jumbo!
"Jus plug er in an blow em outta the water boy!"
Bad idea to replace those speakers.
1. That cabinet is ported and tuned with the specs of the existing speakers in mind.
2. The T/S Parameters of the Carvin speakers are very similar to those of the Emenience Deltalite II 10" speakers, specs which are FAR better for bass guitar that the regular Delta's.
1. That cabinet is ported and tuned with the specs of the existing speakers in mind.
2. The T/S Parameters of the Carvin speakers are very similar to those of the Emenience Deltalite II 10" speakers, specs which are FAR better for bass guitar that the regular Delta's.
