Cadence ZRS-C7 7000 Watt 1 Ohm Class D Mono Block
is this amp worth paying 1700 dollars for...what amp is better for the money power wise
Full Version: Cadence ZRS-C7 7000 Watt 1 Ohm Class D Mono Block
cadence= the shit, they expensive but have some quality shit, try contacting atomic for their 7k it should be around 1300-1500, it does pretty good
Yes cadence is very good and often underrated.
ok so i wanna compair the memphis 4000, the hifonics xxv maxx, and the cadence 7k......on 4 fi btl 12s(with all the options on them..dont know if that makes a diff) which amp is true to what it says? those three are what im lookn at ,whats better on those subs? and what kinda box? ...their goin into a 71 grandville drop... if there is somethin thaqt will sound better in there let me know!
cadence all day is gonna give you the most power
will that setup be good in that car...i want to get the best results from the car that i have.. what would be the best box?
if you have enough room for batts subs amp and ported box, then yeah that setup is gonna get stupid loud if it's built right, all i had was 2 btl 5s with 4k going to them and they was breaking shit, so you got more power and you have more cone area, so be preparded to fix some shit, you might wana weld your trunk latches and on good
haha ok..thats whats up.. ey i appreciate it mayn 1 more question...im not gonna put the top back on so if i port the box to where the top is supposed to be will that be good or should i keep everything in the trunk?
If you port that area, everything around you will shake It will reduce trunk pressure and force pressure on everything else.
QUOTE (Audio Advice @ Nov 3 2009, 10:56 AM) 
If you port that area, everything around you will shake It will reduce trunk pressure and force pressure on everything else.
hell yeah
yeaaaaaaaaaaaaaaa man.
QUOTE (HIGHlow KusTumZ @ Nov 3 2009, 04:04 AM)
ok so i wanna compair the memphis 4000, the hifonics xxv maxx, and the cadence 7k......on 4 fi btl 12s(with all the options on them..dont know if that makes a diff) which amp is true to what it says? those three are what im lookn at ,whats better on those subs? and what kinda box? ...their goin into a 71 grandville drop... if there is somethin thaqt will sound better in there let me know!
actually the hifonics maxximus is gonna give u the most power outta the three and really U cant compare the memphis with the other 2. Its only a 4K watter. Betweent the 3 Id pick neither and go with either a Atomic, Cactus, or RD 7K. All 3 are of these 3 are basically the same amp. The cadence is pretty good but they are over priced. But I wouldnt run either if I were u unless u were willing to get a 250amp+ alternator and no less than 5-6 group31 batteries. So basically ur looking at electrical upgrades that will run u well over $1500. Just in Alternator and batteries. Think about that before u jump out there on a limb
off subject...whats a mla module?
stand for missing link audio, it's just external plug that trick your alternator into charging at a higher voltage, example say your alt charges between 14.5-14.7v that mla module will have it charging at 15.3v
is it a good thing to have or is it overkill... well for my situation.. im gonna run 7-10k (depending on which amp i go with) on my subs and 2500 on my mids and highs....then 1 *42 inch 4 *17 wides ...... massaging seats. glow lights under car and inside car and trunk. plus a computer. so if i had 5 batts...what size alt do i need would it be better to go with multiple alts?
running all that damn son, i'm not sure how some of those items would respond to such a high charge, but it's def. not overkill, but all i'mma say is this, if you plan on running all that, especially if you running it all at one time brah i suggest a custom bracket for 3 alts under the hood got damn son, and no less than 6 batts
could i run everything but the audio on one system (seperate alts and battery) and then the audio on another? would that be smarter? then all the other stuff wouldnt be charged so high? I been stackn up on stuff for so long that i feel that ide be dumb not to use it.
QUOTE (HIGHlow KusTumZ @ Nov 8 2009, 02:33 PM)
could i run everything but the audio on one system (seperate alts and battery) and then the audio on another? would that be smarter? then all the other stuff wouldnt be charged so high? I been stackn up on stuff for so long that i feel that ide be dumb not to use it.
yeah but you will need to run dual batts up front,
QUOTE (crownvic02 @ Nov 8 2009, 11:47 AM)
yeah but you will need to run dual batts up front.
thats fine...so two runnin the front with a hi out alt......then 6 batts runnin audio with 3 alts....sound good?
QUOTE (HIGHlow KusTumZ @ Nov 9 2009, 01:14 AM)
thats fine...so two runnin the front with a hi out alt......then 6 batts runnin audio with 3 alts....sound good?
slow your roll, this is how you should set it up, you have two batts up front and 2 high output alts, have one high output alt charging each front batt, so you will have the alts charging separte systems, run all your other bullshit equipment on one front batt, and your audio on the second front batt, and yes 5 batts in the rear would be good enough to handle that 7k
QUOTE (Audio Advice @ Nov 3 2009, 10:56 AM)
If you port that area, everything around you will shake It will reduce trunk pressure and force pressure on everything else.
is there a way to measure how many ports and port size for whats correct for the set up of a system
QUOTE (HIGHlow KusTumZ @ Nov 11 2009, 07:24 PM)
is there a way to measure how many ports and port size for whats correct for the set up of a system
yeah hope your good with numbers i'll havea link for you in a second
says i aint got permission to be there(i signed up for a membership to)...damn segragation! (ur gonna have to sneak me in the back ) no homo!
Step 1: Measure your trunk too see what your max dimensions are. Then subtract twice the thickness of the mdf your gonna use (usually 3/4" so subtract 1.5"). This gives you the internal dimensions you need for the upcoming equations. example, your max dimensions are 10" high and 20" wide so so your internal dimensions will be 10-1.5=8.5" and 20-1.5=18.5".
Step 2: Now remind your self of what internal box volume you need, pick a tuning frequency, and pick a port area.
Step 3: Figure out port length using this formula
Lv = Av*1.84*10^8/[Vb*1728*(Fb/0.159)^2] - 0.823*sqrt(Av)
Lv is port length (what your solving for)
Av is your port area (height x width of the port face)
Vb is the internal volume of your box
Fb is the tuning frequency you want
Step 4: subtract half of your port width from your port length(Lv) to get physical Lv
Step 5: now you need to figure out how long your second wall is gonna be, so pick ANY number shorter than pLv. you can do this because your displacements always gonna be the same no matter how deep your box is.
Step 6: now take your physical Lv and subtract the external depth ( the number you decided on in the previous step +1.5" for the mdf. ex: if you picked 12 then your external depth is 13.5) from it. now this will give you the length of the 2nd wall.
Step 7: take this length (step 6) and multiply it by your port width+.75 and then multiply it by your internal height and finally divide by 1728. this gives you the displacement.
example, your 2nd wall length is 20", port width is 4", and height is 10"
so you get this 20*4.75 (since you need to add the thickness of the mdf to the port width)*10 for height/1728= .5497ft^3
Step 8: Now find the first wall length which is internal depth-port width. like in step 6 lets use 12. but this time since its internal depth we do not add the 1.5" for the mdf. example: 12-4=8. 8 is the length of your first wall. now do step 7 with these numbers to find the displacement. example: 8*4.75*10/1728=.2199ft^3
step 9: now find out how much your sub displaces by lookin in your owners manual or the company website. when you find out how much is displaces, well use .21 (15" xxx). so now you add all the displacements.
example: .5497+.2199+.21+(the internal box volume you chose earlier, well use 4 cubes) so the gross volume is 4.9796ft^3. this means your TOTAL box will be 4.9 cubes including port, this way your sub gets its reccomeneded 4 cubes (15" xxx in this example)
Step 10: Now we need to find out how deep we need to make the box in order for the sub to get its 4 cubes. well i know what your thinking...
"we used 12 inches for internal depth earlier in the example, how can it change now?" well like i said, displacement always stays the same so we just chose a number inorder to find the displacement, now we need to figure out how deep we need to make it to actaully fit within the 4 cubic foot reccomeneded volume.
so to do this we need to do the gross volume (step 9)*1728/(HxW).
example: 4.9*1728/(10x20) and we get 42.336. so the internal depth would be 42 inches for a box that is 10 inches high and 20 inches wide, in order for it to be 4.9 cubes total(gross volume).
Step 11: find the real port wall lengths.
for port wall one, its just internal depth-port width. example: 42-4=38" is your first port wall length.
for port wall two its your phyisical port length - (internal depth + 1.5")
example: lets say your pLv is 20 and your internal depth is 10 so you get 20-11.5=8.5". thats the length for your second wall.
and your DONE . now of course all the numbers in this post are screwed up cause i was just makin them up as i was going along and not actually tryin to make a box, so the numbers wont match. either way try it out. good luck!
Step 2: Now remind your self of what internal box volume you need, pick a tuning frequency, and pick a port area.
Step 3: Figure out port length using this formula
Lv = Av*1.84*10^8/[Vb*1728*(Fb/0.159)^2] - 0.823*sqrt(Av)
Lv is port length (what your solving for)
Av is your port area (height x width of the port face)
Vb is the internal volume of your box
Fb is the tuning frequency you want
Step 4: subtract half of your port width from your port length(Lv) to get physical Lv
Step 5: now you need to figure out how long your second wall is gonna be, so pick ANY number shorter than pLv. you can do this because your displacements always gonna be the same no matter how deep your box is.
Step 6: now take your physical Lv and subtract the external depth ( the number you decided on in the previous step +1.5" for the mdf. ex: if you picked 12 then your external depth is 13.5) from it. now this will give you the length of the 2nd wall.
Step 7: take this length (step 6) and multiply it by your port width+.75 and then multiply it by your internal height and finally divide by 1728. this gives you the displacement.
example, your 2nd wall length is 20", port width is 4", and height is 10"
so you get this 20*4.75 (since you need to add the thickness of the mdf to the port width)*10 for height/1728= .5497ft^3
Step 8: Now find the first wall length which is internal depth-port width. like in step 6 lets use 12. but this time since its internal depth we do not add the 1.5" for the mdf. example: 12-4=8. 8 is the length of your first wall. now do step 7 with these numbers to find the displacement. example: 8*4.75*10/1728=.2199ft^3
step 9: now find out how much your sub displaces by lookin in your owners manual or the company website. when you find out how much is displaces, well use .21 (15" xxx). so now you add all the displacements.
example: .5497+.2199+.21+(the internal box volume you chose earlier, well use 4 cubes) so the gross volume is 4.9796ft^3. this means your TOTAL box will be 4.9 cubes including port, this way your sub gets its reccomeneded 4 cubes (15" xxx in this example)
Step 10: Now we need to find out how deep we need to make the box in order for the sub to get its 4 cubes. well i know what your thinking...
"we used 12 inches for internal depth earlier in the example, how can it change now?" well like i said, displacement always stays the same so we just chose a number inorder to find the displacement, now we need to figure out how deep we need to make it to actaully fit within the 4 cubic foot reccomeneded volume.
so to do this we need to do the gross volume (step 9)*1728/(HxW).
example: 4.9*1728/(10x20) and we get 42.336. so the internal depth would be 42 inches for a box that is 10 inches high and 20 inches wide, in order for it to be 4.9 cubes total(gross volume).
Step 11: find the real port wall lengths.
for port wall one, its just internal depth-port width. example: 42-4=38" is your first port wall length.
for port wall two its your phyisical port length - (internal depth + 1.5")
example: lets say your pLv is 20 and your internal depth is 10 so you get 20-11.5=8.5". thats the length for your second wall.
and your DONE . now of course all the numbers in this post are screwed up cause i was just makin them up as i was going along and not actually tryin to make a box, so the numbers wont match. either way try it out. good luck!
QUOTE (crownvic02 @ Nov 11 2009, 06:31 PM)
Step 1: Measure your trunk too see what your max dimensions are. Then subtract twice the thickness of the mdf your gonna use (usually 3/4" so subtract 1.5"). This gives you the internal dimensions you need for the upcoming equations. example, your max dimensions are 10" high and 20" wide so so your internal dimensions will be 10-1.5=8.5" and 20-1.5=18.5".
Step 2: Now remind your self of what internal box volume you need, pick a tuning frequency, and pick a port area.
Step 3: Figure out port length using this formula
Lv = Av*1.84*10^8/[Vb*1728*(Fb/0.159)^2] - 0.823*sqrt(Av)
Lv is port length (what your solving for)
Av is your port area (height x width of the port face)
Vb is the internal volume of your box
Fb is the tuning frequency you want
Step 4: subtract half of your port width from your port length(Lv) to get physical Lv
Step 5: now you need to figure out how long your second wall is gonna be, so pick ANY number shorter than pLv. you can do this because your displacements always gonna be the same no matter how deep your box is.
Step 6: now take your physical Lv and subtract the external depth ( the number you decided on in the previous step +1.5" for the mdf. ex: if you picked 12 then your external depth is 13.5) from it. now this will give you the length of the 2nd wall.
Step 7: take this length (step 6) and multiply it by your port width+.75 and then multiply it by your internal height and finally divide by 1728. this gives you the displacement.
example, your 2nd wall length is 20", port width is 4", and height is 10"
so you get this 20*4.75 (since you need to add the thickness of the mdf to the port width)*10 for height/1728= .5497ft^3
Step 8: Now find the first wall length which is internal depth-port width. like in step 6 lets use 12. but this time since its internal depth we do not add the 1.5" for the mdf. example: 12-4=8. 8 is the length of your first wall. now do step 7 with these numbers to find the displacement. example: 8*4.75*10/1728=.2199ft^3
step 9: now find out how much your sub displaces by lookin in your owners manual or the company website. when you find out how much is displaces, well use .21 (15" xxx). so now you add all the displacements.
example: .5497+.2199+.21+(the internal box volume you chose earlier, well use 4 cubes) so the gross volume is 4.9796ft^3. this means your TOTAL box will be 4.9 cubes including port, this way your sub gets its reccomeneded 4 cubes (15" xxx in this example)
Step 10: Now we need to find out how deep we need to make the box in order for the sub to get its 4 cubes. well i know what your thinking...
"we used 12 inches for internal depth earlier in the example, how can it change now?" well like i said, displacement always stays the same so we just chose a number inorder to find the displacement, now we need to figure out how deep we need to make it to actaully fit within the 4 cubic foot reccomeneded volume.
so to do this we need to do the gross volume (step 9)*1728/(HxW).
example: 4.9*1728/(10x20) and we get 42.336. so the internal depth would be 42 inches for a box that is 10 inches high and 20 inches wide, in order for it to be 4.9 cubes total(gross volume).
Step 11: find the real port wall lengths.
for port wall one, its just internal depth-port width. example: 42-4=38" is your first port wall length.
for port wall two its your phyisical port length - (internal depth + 1.5")
example: lets say your pLv is 20 and your internal depth is 10 so you get 20-11.5=8.5". thats the length for your second wall.
and your DONE . now of course all the numbers in this post are screwed up cause i was just makin them up as i was going along and not actually tryin to make a box, so the numbers wont match. either way try it out. good luck!
Step 2: Now remind your self of what internal box volume you need, pick a tuning frequency, and pick a port area.
Step 3: Figure out port length using this formula
Lv = Av*1.84*10^8/[Vb*1728*(Fb/0.159)^2] - 0.823*sqrt(Av)
Lv is port length (what your solving for)
Av is your port area (height x width of the port face)
Vb is the internal volume of your box
Fb is the tuning frequency you want
Step 4: subtract half of your port width from your port length(Lv) to get physical Lv
Step 5: now you need to figure out how long your second wall is gonna be, so pick ANY number shorter than pLv. you can do this because your displacements always gonna be the same no matter how deep your box is.
Step 6: now take your physical Lv and subtract the external depth ( the number you decided on in the previous step +1.5" for the mdf. ex: if you picked 12 then your external depth is 13.5) from it. now this will give you the length of the 2nd wall.
Step 7: take this length (step 6) and multiply it by your port width+.75 and then multiply it by your internal height and finally divide by 1728. this gives you the displacement.
example, your 2nd wall length is 20", port width is 4", and height is 10"
so you get this 20*4.75 (since you need to add the thickness of the mdf to the port width)*10 for height/1728= .5497ft^3
Step 8: Now find the first wall length which is internal depth-port width. like in step 6 lets use 12. but this time since its internal depth we do not add the 1.5" for the mdf. example: 12-4=8. 8 is the length of your first wall. now do step 7 with these numbers to find the displacement. example: 8*4.75*10/1728=.2199ft^3
step 9: now find out how much your sub displaces by lookin in your owners manual or the company website. when you find out how much is displaces, well use .21 (15" xxx). so now you add all the displacements.
example: .5497+.2199+.21+(the internal box volume you chose earlier, well use 4 cubes) so the gross volume is 4.9796ft^3. this means your TOTAL box will be 4.9 cubes including port, this way your sub gets its reccomeneded 4 cubes (15" xxx in this example)
Step 10: Now we need to find out how deep we need to make the box in order for the sub to get its 4 cubes. well i know what your thinking...
"we used 12 inches for internal depth earlier in the example, how can it change now?" well like i said, displacement always stays the same so we just chose a number inorder to find the displacement, now we need to figure out how deep we need to make it to actaully fit within the 4 cubic foot reccomeneded volume.
so to do this we need to do the gross volume (step 9)*1728/(HxW).
example: 4.9*1728/(10x20) and we get 42.336. so the internal depth would be 42 inches for a box that is 10 inches high and 20 inches wide, in order for it to be 4.9 cubes total(gross volume).
Step 11: find the real port wall lengths.
for port wall one, its just internal depth-port width. example: 42-4=38" is your first port wall length.
for port wall two its your phyisical port length - (internal depth + 1.5")
example: lets say your pLv is 20 and your internal depth is 10 so you get 20-11.5=8.5". thats the length for your second wall.
and your DONE . now of course all the numbers in this post are screwed up cause i was just makin them up as i was going along and not actually tryin to make a box, so the numbers wont match. either way try it out. good luck!
feel like im back in college!!!!
....thanks i appreciate it..imma have to study this shit...if i cant figure it out then I'll find some one to help me....i want to do this myself so i can learn to do it correctly!
Just open some shit up from the trunk to the cabin. Idk how your car is so I cant say...
its just like a 1971 convertible impala/caprice.. or even better one....that car thats on hip hop rides or cars...the 1971 pontiac granville (hulk themed one)
I mean the trunk to backseat area. I dont have a visual. doesnt the top block the two?
usually..but im not puttn it back on... Imma take some pics.
Do that.
aight here it is...lemme know...besides it bein junkie!
I would glass that open area, put like (4) 10" seleniums and a fat port in the middle.
i might have to do that 
.... I got 6 mb quart qsds should i run those in the front 6.5
and with the 10's run a crossover or put some tweets with them.... with the tens..this might be a dumb question...but are they all free air..or does it sound better to have them in a box(not that i'll try to put them in one if i dont have to) i'll just make sure that space is reinforced and sealed
and is there any way to the 5th channel on a amp so that it plays more than just bass?
and as far as the trunk just make the whole thing a box, point the speakers foward or back?(i'll save room for amps and shit)
hope you dont mind me drainin you for info dude.. i appreciate it!
.... I got 6 mb quart qsds should i run those in the front 6.5 and with the 10's run a crossover or put some tweets with them.... with the tens..this might be a dumb question...but are they all free air..or does it sound better to have them in a box(not that i'll try to put them in one if i dont have to) i'll just make sure that space is reinforced and sealed
and is there any way to the 5th channel on a amp so that it plays more than just bass?
and as far as the trunk just make the whole thing a box, point the speakers foward or back?(i'll save room for amps and shit)
hope you dont mind me drainin you for info dude.. i appreciate it!
QUOTE (HIGHlow KusTumZ @ Nov 13 2009, 02:21 PM)
i might have to do that .... I got 6 mb quart qsds should i run those in the front 6.5
and with the 10's run a crossover or put some tweets with them.... with the tens..this might be a dumb question...but are they all free air..or does it sound better to have them in a box(not that i'll try to put them in one if i dont have to) i'll just make sure that space is reinforced and sealed
and is there any way to the 5th channel on a amp so that it plays more than just bass?
and as far as the trunk just make the whole thing a box, point the speakers foward or back?(i'll save room for amps and shit)
hope you dont mind me drainin you for info dude.. i appreciate it!
.... I got 6 mb quart qsds should i run those in the front 6.5 and with the 10's run a crossover or put some tweets with them.... with the tens..this might be a dumb question...but are they all free air..or does it sound better to have them in a box(not that i'll try to put them in one if i dont have to) i'll just make sure that space is reinforced and sealed
and is there any way to the 5th channel on a amp so that it plays more than just bass?
and as far as the trunk just make the whole thing a box, point the speakers foward or back?(i'll save room for amps and shit)
hope you dont mind me drainin you for info dude.. i appreciate it!
they work free air but you would want some type of enclosure behind them so the air from ya bass in the trunk doesnt blow them out.
I wouldnt even worry about tweeters, them babies talk loud and clear on their own. Just run them on bandpass or high filter on the amp's crossover.
leave the bass to the subs.
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