[i own an e90]

ok guys..i have a two channel amp rockford and a diamond d5 1200 watt MONO amp ....which one is suitable for my ONE 12 mtx sub in a ported box.... and i also have a diamond 650 4 channel amp which im going to use for the interior speakers..... hopefully finishing touch would do the magic and fix my problem ....

[Tegs4tugs]

What model rockford you have? I usually go with rockford but cant compare unless I know which one

[amlebede]

A and AB class (usually 2+ channels) for less distortion.
D and DB class (typically mono) for thermal efficiency.

I would go with a Class D or DB if you are hitting lows because distortion mostly occurs at higher frequencies. Honestly, for a subwoofer it doesn't really matter what amplifier you have as long as you have a good power source and the amplifier provides enough wattage to your subwoofer.

[i own an e90]

will i b able to use a 650 watt amp for the interior speakers instead of the stock amp ?? and use a 1200 watt amp for my one 12" mtx thunder

[quality_sound]

Originally Posted by amlebede

A and AB class (usually 2+ channels) for less distortion.
D and DB class (typically mono) for thermal efficiency.

I would go with a Class D or DB if you are hitting lows because distortion mostly occurs at higher frequencies. Honestly, for a subwoofer it doesn't really matter what amplifier you have as long as you have a good power source and the amplifier provides enough wattage to your subwoofer.

There is no such thing as class DB.

Distortion doesn't mostly occur at higher frequencies, we're just more sensitive to it. To even begin to hear distortion at low frequencies it has to be at or over 10%, yes TEN PERCENT. We can hear distortion at around ONE percent in midrange and high frequencies.

There is also one major drawback to class D designs, poor control over the speaker. Yes, the amp will be small, run cooler, and make good power but an AB will sound better at the expense of size and heat.

Originally Posted by i own an e90

will i b able to use a 650 watt amp for the interior speakers instead of the stock amp ?? and use a 1200 watt amp for my one 12" mtx thunder

Maybe, it depends on what stock system you have. You want to use the new amp to "solve your problem", what exactly IS your problem?

[i own an e90]

Originally Posted by quality_sound

There is no such thing as class DB.

Distortion doesn't mostly occur at higher frequencies, we're just more sensitive to it. To even begin to hear distortion at low frequencies it has to be at or over 10%, yes TEN PERCENT. We can hear distortion at around ONE percent in midrange and high frequencies.

There is also one major drawback to class D designs, poor control over the speaker. Yes, the amp will be small, run cooler, and make good power but an AB will sound better at the expense of size and heat.



Maybe, it depends on what stock system you have. You want to use the new amp to "solve your problem", what exactly IS your problem?

well my problem as of now is ..i might have to upgrade my subs to a stronger subs that will power up my 1200 watt diamond amp mono .... cuz whati have now is one 12inch mtx sub it only has 1ohm and 225rms watt which is powering up with my rockford fosgate 2 channel amp(old version) .....

[CollinsE90]

Originally Posted by i own an e90

will i b able to use a 650 watt amp for the interior speakers instead of the stock amp ?? and use a 1200 watt amp for my one 12" mtx thunder

is it a 4 channel, bc thats what u need for interior speakers?

[i own an e90]

well i have a mono 1200 watt diamond d5 amp for the sub ..and a 600 4channel diamond amp for the interior speakers......now, would i be able to use the 4 channel amp for my stock interior speakers ..or would i have to upgrade the speakers

[quality_sound]

Originally Posted by i own an e90

well my problem as of now is ..i might have to upgrade my subs to a stronger subs that will power up my 1200 watt diamond amp mono .... cuz whati have now is one 12inch mtx sub it only has 1ohm and 225rms watt which is powering up with my rockford fosgate 2 channel amp(old version) .....

Your amp powers your subs, not the other way around. If your amp makes more power than your subs are rated for it's not a big deal. Having said that you would be GROSSLY overpowering a 225 Watt sub with a 1200 Watt amp. Why not wire the sub for 4 Ohms(I'm assuming it's a dual 2 ohm sub)? That way you'll get more control over the sub (lower impedances lower the damping factor) and limit the amount of power the amp delivers to the sub. Worst case, you blow the sub up and you get a new one anyway.

[i own an e90]

Originally Posted by quality_sound

Your amp powers your subs, not the other way around. If your amp makes more power than your subs are rated for it's not a big deal. Having said that you would be GROSSLY overpowering a 225 Watt sub with a 1200 Watt amp. Why not wire the sub for 4 Ohms(I'm assuming it's a dual 2 ohm sub)? That way you'll get more control over the sub (lower impedances lower the damping factor) and limit the amount of power the amp delivers to the sub. Worst case, you blow the sub up and you get a new one anyway.

yah im just planning on getting a stronger sub .... cuz the ohm on my sub on now is 1 .....

[quality_sound]

there is no sub in MTXs lineup that's a single coil 1 ohm. it's got to be a dual 2 ohm which means it can be wired for 4 ohms as well.

what's the model number of the sub?

[i own an e90]

Originally Posted by quality_sound

there is no sub in MTXs lineup that's a single coil 1 ohm. it's got to be a dual 2 ohm which means it can be wired for 4 ohms as well.

what's the model number of the sub?

its the mtx thunder 4500 in a ported box ..i might switch it to type R sub so it can handle my diamond 1200 wattt amp mono sitting in my room ....

another question..would i have to replace the stock interior speakers for me to use an aftermarket 4 channel amp..cuz i have one laying around diamon 650 watt 4 channel amp ....