daisy chain Kinetiks

[GavinVoy 10+ year member]

OK so i got my amp clamped and its only seeing 1020 wrms and it should be seeing 1550 (mmats D2100.1) ive yet to upgrade the wiring from my previous set up, still running 4 ga. off the battery and then to a d block to 2 strands of 8 ga. I still need to up that to some 1/0 and do a big three.

i have a Kinetik 600 form that setup too, i am wondering if i were to daisy chain another 600 would that be enough? if not could i get an 800 to chain with it? so it would be 600 + 800. or do i just have to buy a 1400/2000?

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[Saint211 10+ year member]

by daisy chaining i hope you mean wiring them in parallel. the amp/hour rating will add up.. meaning a larger reserve of amperage in your bat bank.

Wiring in series however, will make the voltage of the batteries add up instead....

 

[helotaxi 5,000+ posts]

What were the actual numbers, voltage and amperage, from the amp, when you clamped it? Were you using a purely resistive load? Did you actually do the math to see what impedance your amp was actually seeing? What did your battery voltage drop to during this? Unless you have answers for all of this, you can't say that there was even a problem.

 

[GavinVoy 10+ year member]

my knowledge base is limited, as you can tell

~ well i dont need more volts, more amps

~ would an 800 addition be enough?

i actually did not do it myself, i had it done at a shop (a DD dealer), he said "1020 rms with a 2.8 impedence rise"

 

[helotaxi 5,000+ posts]

That 2.8 impedance rise is the reason that you didn't get the rated power out of the amp. The volts/amps are related. If the voltage going to the amp didn't drop, adding more batteries is not going help at all. Having more current available is what keeps the voltage up and sagging voltage is the only way to tell that you have a current shortage.

 

[GavinVoy 10+ year member]

... so i need more voltage ? and i can get that by ... ? wiring 2 batteries in series ?

 

[Ed Lester 10+ year member]

... so i need more voltage ? and i can get that by ... ? wiring 2 batteries in series ?

DO NOT wire your batteries in series.

ONLY wire them in parallel (+ to + and - to -)

What is being said is that because of your subs and box, you are not getting full power from the amp to those subs.

 

[GavinVoy 10+ year member]

what do i need to do, to get more power to the subs?

 

[lilmaniac2 5,000+ posts]

that amp probably will struggle to do rated power anyway.....

 

[helotaxi 5,000+ posts]

Basically what I'm getting at is that in a real world application, you will never get the full power from the amp. It just isn't going to happen. My opinion is that for a daily driver system, there is no point to clamping the amp to find out the power, cause it really just doesn't matter. The reactive nature of the load presented by a sub is going to keep you from getting full power out of an amp and you don't want to ruin the sound of the enclosure by messing with it trying to chase the impedance plot that you want. The only real measure of consequence is "loud enough or not." Anything other than that is going to be an exercise in futility.

If you don't have enough current, the manifestation of that is a drop in voltage. The goal in increasing the available current reserve by adding more batteries (in parallel!) is to keep the voltage stable. With 90%+ of the amps out there, you get more power with higher voltage. I'm not talking about setting things up for a non-standard voltage but rather keeping the voltage from dropping below the normal level.

 

[GavinVoy 10+ year member]

ive heard of other people doing 1900+

its plenty loud as it is. i was just wondering if it could get louder, for completions and such. but if i did get more power it would put me in a different class.

and no i dont have a voltage drop, keeps constant around 13.8 - 14.1

thanks for your help.

 

[skmfkr 5,000+ posts]

your imp rise is your problem not your voltage drop is what they are trying to tell you.

your amp i guess is rated to do 1550 @ 1ohm, the imp is rising 2.8 making it do 1020 @ 3.8ohm

 

[GavinVoy 10+ year member]

if i did want to fix my imp rise how could i do that?

 

[helotaxi 5,000+ posts]

Like I said, without totally redesigning and rebuilding your box, you can't. You'd have to go with a different volume, tuning and dimensional ratio to minimize the box rise and it just isn't worth messing with for a daily system. The boxes with the lowest rise usually aren't the best sounding, so unless you just care about getting power to the sub without concern for how that power is actually used, don't worry about it. If the only purpose of the system was to compete and win, you'd worry about combating box rise. If you actually want to listen to the system and have it sound good, don't concern yourself with it at all.

 

[GavinVoy 10+ year member]

ok i wont, lol.

thanks.

if i wanted more power would i get that by getting a mmats D2100.2 which is 1550 @ 2 ohms ?