Will I blow a Type-R with my amp??

[Kevzaz 10+ year member]

I am looking for a new subwoofer since I blew my last one and don't feel like going through the trouble of fixing it. So I was thinking of buying a Type-R since it is cheap and apparently a good speaker.

The amp I am using is a Fusion PowerPlant Monoblock Amplifier PPAM20001

Max Power:

2000 Watts RMS Power Output:

465 Watts RMSx1 channel at 4 ohms

750 Watts RMSx1 channel at 2 ohms

1150 Watts RMSx1 channel at 1 ohms

Frequency Response: 10Hz-250Hz

Low-Pass Crossover : 40Hz-160Hz

Will I be blowing my money by blowing a good speaker?

Click to read more...

 

[Burton6431 10+ year member]

i forget what r's are rated, but set your gains always, it doesnt matter how powerful the amp is you ALWAYS have to set your gains correctly or bad **** happens.

 

[Kevzaz 10+ year member]

Is there a thread on how to set gains correctly? I took my sub to the shop when I got it the first time, and my idiot friends thought they knew better... >.

 

[Sarthos 10+ year member]

It's simple. Either assume the resistance on the sub is exactly what it says it is, or use a multimeter to be sure. I'd use the multimeter since what says 2 ohm could actually be between about 1.8 and 2.2 ohm or something like that. So basically, run all the wires on the sub to run it in parallel or whatever you wanna do, but don't wire it to the amp. Check the resistance at the wires.

Next, turn on your amp without the sub connected. Turn your stereo to the point where your speakers would start to distort, then back it down a bit (should be about 3/4 volume). Once you've done that, insert a CD with a test tone of around 40 Hz, and connect your multimeter to the outputs on the amp, measuring AC voltage. Adjust your gains until the voltage satisfies this equation

Desired watts = voltage*voltage/resistance.

 

[Wingsfreak9 10+ year member]

if you wire it down to 4 ohms u will be fine the type r handles 500 rms

 

[Kevzaz 10+ year member]

It's simple. Either assume the resistance on the sub is exactly what it says it is, or use a multimeter to be sure. I'd use the multimeter since what says 2 ohm could actually be between about 1.8 and 2.2 ohm or something like that. So basically, run all the wires on the sub to run it in parallel or whatever you wanna do, but don't wire it to the amp. Check the resistance at the wires.
Next, turn on your amp without the sub connected. Turn your stereo to the point where your speakers would start to distort, then back it down a bit (should be about 3/4 volume). Once you've done that, insert a CD with a test tone of around 40 Hz, and connect your multimeter to the outputs on the amp, measuring AC voltage. Adjust your gains until the voltage satisfies this equation

Desired watts = voltage*voltage/resistance.

Half of that made no sense to me. I have very little knowledge of that stuff. What if I take it to an installer?

if you wire it down to 4 ohms u will be fine the type r handles 500 rms

I would imagine/hope it could at least take the 750 at 2 ohms.

Wired like this, right?

 

[Wingsfreak9 10+ year member]

Half of that made no sense to me. I have very little knowledge of that stuff. What if I take it to an installer?

I would imagine/hope it could at least take the 750 at 2 ohms.

Wired like this, right?

if ur that worried about ur sub i wouldnt risk it. get a couple more and run all that amps power to them

 

[ahole-ic]

It's simple. Either assume the resistance on the sub is exactly what it says it is, or use a multimeter to be sure. I'd use the multimeter since what says 2 ohm could actually be between about 1.8 and 2.2 ohm or something like that. So basically, run all the wires on the sub to run it in parallel or whatever you wanna do, but don't wire it to the amp. Check the resistance at the wires.

There is a difference between resistance and impedence. Find out why what you're saying is wrong. Live it. Learn it. Love it.

Next, turn on your amp without the sub connected. Turn your stereo to the point where your speakers would start to distort, then back it down a bit (should be about 3/4 volume). Once you've done that, insert a CD with a test tone of around 40 Hz, and connect your multimeter to the outputs on the amp, measuring AC voltage. Adjust your gains until the voltage satisfies this equation

Desired watts = voltage*voltage/resistance.

whew! so wrong!

 

[matt_2_2011 10+ year member]

Should be fine if you run it at 2 ohms, after rise itll prolly see 500

 

[Kevzaz 10+ year member]

There is a difference between resistance and impedence. Find out why what you're saying is wrong. Live it. Learn it. Love it.
whew! so wrong!

Can you explain how to do it then?

 

[Kevzaz 10+ year member]

bump

 

[subzero 5,000+ posts]

the amp you have is good for one sub. Is the sub going to be in a custom box. Dont let your friends make it for you. One type R can handle about 500-1000rms daily in the right box. Doesnt mean you have to slam it daily. If you plan on running two subs, you will need another amp. your type R is either 2ohms final load or 8 ohms final load if it is dvc 4 ohm. If your running two subs then you will either have 1ohm final load on a bigger amp that can put out 2000rms @ 1ohm. You could get another identical amp like the one you have now and keep them both set at 2ohms a piece wich gives you 750rms you say. but the problem with that is equalizing the output for each sub. Your better off sticking with one sub. \or gett rid of amp and get a amp thaat does 2000rms at 1ohm and two subs in a custom box.