Type R 6 x 9's, hardly any bass

**pancit175** · 10-14-2009, 11:24 PM

Originally Posted by HiJackZX1

I too have heard this from many people. The Alpine Type R, like the 100 RMS they were built to handle.

I feel should point out an example at least between the stock and aftermarket speakers performance.
When I started out the project on my new car, I started with the stock audio components. The first thing I did was change out the rear pair of speakers to the alpine type r 6.5" coaxial speakers, while I was waiting for my front components and amps. Now you can imagine that the OEM headunit is meant to match the proper power to the stock speakers at somewhere between 10-15Wrms. The magnet of the alpines had to be at least 5 times larger than the stock, not to mention the different type of magnetic material, which you can determine that with the same amount of power that it will take to run those speakers you cannot expect it to run the new speakers properly.

The resulting sound out of the alpines was much softer than the stock speakers and I needed to adjust the fade a significant amount to the rear in order to compensate. And when I did install my alpine type r 6.5 component speakers in the front the fade could be centered, but the volume levels needed to be near max to be anywhere near decent listening levels.

I knew this would happen beforehand, that was why I planned on installing a 4 channel amp with 100Wrms output to properly power the speakers when I install my computer and other amp&subs. After everything was installed I cannot complain one bit. I barely even have to crank up my volume level above 40% of max most of the time.

**kidcash** · 10-15-2009, 03:38 AM

Thanks for all the comments, thing is I'm damn sure I've been in peoples cars who have ran Type S's (these are 85w RMS) off a stock head unit and they hit pretty hard.

So Type R's at 100w rms i'm wondering why they have abosutely no bass at all in my setup. When turned up I can definately see the cones moving real high but they dont make bass.

**malcom2073** · 10-15-2009, 05:53 AM

if these are in a rear deck, is it possible that the pioneers are designed to run open-backed, and the Type R's are designed to be run in a sealed box? It would explain the cone movement with no bass. I know when I put speakers in my rear deck they were damn near silent at low frequency until I put boxes underneath them.

**kidcash** · 10-15-2009, 06:31 AM

Hi,

Just found out that they were wired out of phase.

Well when I got them running i found out that one of the speakers has a broken voice coil or something, everytime the speaker hits i hear a rattle like there is something inside.

When the speakers are outside when i gently tap one of the cones of the good speaker it makes a nice low tone voice. When I tap the defective speaker it makes a rattle inside.

**soundman98** · 10-15-2009, 09:57 AM

Originally Posted by kidcash

Hi,

Just found out that they were wired out of phase.

Well when I got them running i found out that one of the speakers has a broken voice coil or something, everytime the speaker hits i hear a rattle like there is something inside.

When the speakers are outside when i gently tap one of the cones of the good speaker it makes a nice low tone voice. When I tap the defective speaker it makes a rattle inside.

this would be what happens when the polarity is reversed and you really push them...

but, it's good you figured it out.

**kidcash** · 10-15-2009, 11:40 AM

Originally Posted by soundman98

this would be what happens when the polarity is reversed and you really push them...

but, it's good you figured it out.

Really?

I've been reading on the internet trying to find out whether having speakers wired out of phase causes damage, and most people seem to say it will not damage the speakers.

**Sicarius** · 10-15-2009, 11:54 AM

Phase shouldn't matter at all as the cone excursions should be equal in both directions.

However, if there's a DC bias on the speaker outputs from the amp then all bets are off.

**kidcash** · 10-15-2009, 12:11 PM

What do you mean by DC Bias?

**surfntomm** · 10-15-2009, 12:42 PM

I think just due to the fact that you had to crank up your gain so much to make the speakers put out some bass you probably induced clipping and damaged your speakers.

Speakers rarely get damaged from TOO much power but rather too little power resulting in saturation at high levels = speakers death

**soundman98** · 10-15-2009, 01:23 PM

it is not both speakers being out of phase that can cause problems. it is the fact that one of the speakers polarity is reversed-- the voice coils(and glue that hold the vc wires together) were never deisgned to constantly pull the cone into the magnetic gap--most speakers were designed to push the cone away form the magneic gap. and by forcing the vc to pull the entire cone into the mag gap, the vc started to separate because it can't deal with the constant force in the wrong direction. (at least this is my theory on how i managed to mutilate the vc on a set of 6x9's in 1 week)