Right now I have to crank my HU to 70 before my components actually get LOUD.

And I know the HU is only pushing like 15watts per channel.

My components are 120watts RMS and the sensitivity is 90db.

Please explain why I have to crank my HU, And if I push more power into these components; lets say 100watts RMS will this change drastically.

http://www.morelhifi.com/products/mob_2way_tempo.html

 

Well sensitivity is only part of it. And sometimes sensitivity is exaggerated or not measured the same, so it's not a great teller of loudness.

If you compare 15 watts to 100... every doubling of power is an extra 3db and that is perceptibly louder while 10times the power is double the loudness.

So 15 to 100watts should be quite the noticeable difference.

 

Did you set the gains right? Components are much better amped.

 

Speakers are not amped yet, Only running off the 5030 right now.

I've never heard Components amped before so I have no idea what to expect. These speakers cost me 360$ so I hope they do not disapoint.

 

Amp them and be done with it. You are never going to be happy with them the way that they are, for the simple reason that you know you are barely touching the surface of what you will have when you do amp them, and allow them do what they were made to do. Great speakers, but they need some power to light them up.

 

It's the difference between putting your headphones into an MP3 or CD player and putting them into a computer with a decent equalizer.

 

just as an fyi...Morel rates their sensitivity with a 2.83 volts at 1m which is 1 watt @ 8ohms, but is equivalent to 2 watts @ 4ohms...therefore the comparable sensitivity of those components with the standard 1watt/1 metre rating would be 87 dB.

 

Cool, thanks for the info guys.

 

if you have a meter set it to ac and play some pink noise through your deck.. then pin the bass treble and volume. now what do you get for a reading should be around 4-12 volts... oh ya make sure no speaker is hooked up for this test.. now turn everything back to normal for your average listening and again check your mesurements.. might be somewhere around 1-8 volts... this is your realistic output from the deck so with that number and the fact that the morel sensativity is 87 in a free air application and is 4 ohms your speaker should be playing about 99 db befor cabin gain, if any, and that is pretty much bang on for how loud a head unit can play.

 

^^x2, i figured about the same...87 db/w/m and 15 watts rms from the deck...2 watts=90db, 4watts=93, 8 watts 96 and 16 watts =99db plus any cabin gain etc...still should be fairly loud at high volume settings.