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Using a higher RMS Rating Than your Sub?


Cj Kumz

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Posted

Hey people. Uhhmm ok I have been wondering why people use for example 4000rms Daily on a 1500rms rated sub.. What are the pros and cons of using more rms on a sub?? And does it mean amp gains should be set differently??

Vw Polo

Pioneer Deh-6050UB

Sundown Saz-3500d

DD Audio 9500 15''

5.5 cubic feet box with 10 inch port @ 38hz

I live to hear the Bass drop!!!

Posted

They do it, because they know what they are doing. Technically, most companies rate RMS as the continuous power that a coil can take until THERMAL failue. This is opposed to music, which is dynamic in nature. But, depending on the box and tuning, half of RMS could destroy a sub mechanically.

I like that DSS rates their new subs at the power it takes to reach xmax in the spec'd enclosure.

Not trying to be harsh, but you've got a long way to go before you start worrying about that. Get your electrical in order. If you want to get louder, try different boxes before you go slapping more power on your woofers.

Posted

Getting the sub clean, un-clipped, un-distorted power is the first step and over powering a sub. Having proper electrical and good quality components is a must.

2010 Honda Civic LX / Deck: Kenwood DDX371 / Front Highs: Crescendo RTS-1 / Front Mids: Silver Flute 6.5's / 4 channel: DC Audio 90.4 / Sub: Fi 15in SP4v2 / Sub amp: Taramps HD 5000 / Power wire: Knukonceptz OFC 1/0 / Deadener: Audio Technix 60 mil / Batteries: XS Power D5100R / Rear bank: TBD / Alternator: Singer 240a hairpin

Posted

In most cases, Id take the persons gear/electrical into account that is saying "im putting 6k to this sub".

This

Thanks alaskanzx5 I might just do that
I can recone a sub myself. About a year ago I took 2 12" power acoustic mofos and made one sub. I took the magnet and the motor off of one and j b welded it to the other motor and magnet. I had to wind my own voice coil so it would work. After I was done hooked up to 2 boss 5000w amps. And shattered my back and all my side windows

came to this thread to recommend soundqubed and ct sounds. OP goes with soundstream.

oh lawd.

Posted

Thanks people I am using a DD9515 in a 5.5cube box with a 10inch port tuned to 38hz. Its been powered by a Sundown saz-3500d @ 2ohms. Issue is how do I know that I'm not giving the sub too much power??

Vw Polo

Pioneer Deh-6050UB

Sundown Saz-3500d

DD Audio 9500 15''

5.5 cubic feet box with 10 inch port @ 38hz

I live to hear the Bass drop!!!

Posted

that sub at @ 2ohm on that amp is perfect and your already overpowering. Make sure your gains are set clean and you have clean power.

I do think the box is a little big for that much power.

Posted

Yah I hear bigger box less power handling then smaller vise versa. But you know what confuses me is most people will put as much as 4000rms on their 9515, so I thought 2000rms is on the "less" power handling side so I did a big box.. Yah and issue is also getting clean power, can't tell the difference with bad gain. But I have my bass boost on 0 now (I hear its bad), gain just abit over half. Then h/u has sub level on full(+6), bass at 0, eq 50hz at +2, nd use volume at about 45 which is 3/4. Hope I'm safe?

Vw Polo

Pioneer Deh-6050UB

Sundown Saz-3500d

DD Audio 9500 15''

5.5 cubic feet box with 10 inch port @ 38hz

I live to hear the Bass drop!!!

Posted

I'm getting away with feeding my little ID8 subwoofer a considerable amount more than it's rated power, more than likely because my sealed enclosure is on the small side for the manufacturer's recomendation.

2015 Toyota Tacoma Build Thread

2007 Mazda 3; 5000K HID's, Kenwood Excelon KDC-X997, Infinity Reference 6.5 comps in front and coaxials in the rear doors, JL 320.4 four channel, Rab Designs built ported enclosure with an SA12, Kenwood monoblock, Redline Leater shift boot/e-brake boot/center console cover, JBR short shifter/shifter bushings/rear motor mount.

Build Thread

 

1996 Mazda Miata: Kenwood Excelon HU, Alpine speaker in the doors, Clearwater (miata specific) headrest speakers. 

 

1994 Mazda Protege: Kenwood Excelon HU, Infinity Reference 2 ways all around, 2x RF Punch 10's in ported boxes. 

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