lacking bass....help!

[adrean8j]

Ok I dont know what all of these audiophiles are talking about with facing the subs to the rear but trust me you dont have to do that....look at the pics of my install....my subs face forward at a roughly 45degree angle thru the armrest/skiboot......armrest up or down the bass gets in there trust me....if it isnt then you settings on the amp are not correct or the "power" ratings on the amps/subs are misleading(happens alllll the time)
Here are pics of initial install and finished product over last couple of years......

[cop]

Unfortunately I don't have the skisack like your 5er.

[adrean8j]

Originally Posted by cop

Unfortunately I don't have the skisack like your 5er.

I dont have a skisack either and my backseats dont fold down.....I had to cut a rectangular hole in the metal backing the rear seat.....check other forums if you dont find the answer here....there are plenty of E30's with sound systems....try www.bmwboard.com or www.sounddomain.com forums too....

[cop]

My car is a e36 coupè.

[adrean8j]

Even better.....many, many people in my car club have those.....

[cop]

Yes, but I've the same problem. I run a 15" sub in free-air powered by a Rockford amp, my sub is the AIR-3800 made by Hertz.

[DaSaintly1]

When i had an e36 coupe i removed the stock 4" speakers and there box from the parcel shelf. you end up with a hole that is a perfect size for a 6x9. all you need to do is make a mounting board under that hole and seal the edges.
JL also make a stealthbox for the e36 (http://mobile.jlaudio.com/products_s...4&model_id=140) that works well.
Having a full on sub box in the boot should work fine as the seats are not that thick but you could just remove the shelf speakers and keep the holes empty (but keep the grill for the look).

[DaSaintly1]

Originally Posted by cop

Yes, but I've the same problem. I run a 15" sub in free-air powered by a Rockford amp, my sub is the AIR-3800 made by Hertz.

Your running your 15" sub as free air?! I allways thought it was vital to seperate the air from the front to back of the sub. AFAIK the speaker will not work correctly as a free air unit.

[Rooz]

YOu have a vented box.... he has an open box So yes, there is a difference in that

[carstereopro]

Originally Posted by adrean8j

Ok I dont know what all of these audiophiles are talking about with facing the subs to the rear but trust me you dont have to do that....look at the pics of my install....my subs face forward at a roughly 45degree angle thru the armrest/skiboot......armrest up or down the bass gets in there trust me.

What you have done is "loaded" the subs into what is basically a 5th order bandpass environment.

The cut-through into the cabin is the equivenant to the mouth of the "port", the sub box acts as the acoustic suspension enclosure, and the remaining trunk space acts as the port itself.

This type of setup is hit or miss, if done right, it sounds killer, (as you have done), if volumes are miscalculated or coincidentally built to the wrong specs, the subs will either sound like crap, or the power handleing of the subs will fall through the floor at the enclosure's tuning frequency.

Basically, you could get lucky and it'll sound great, or unlucky and you'll blow subs often.

[adrean8j]

Originally Posted by carstereopro

What you have done is "loaded" the subs into what is basically a 5th order bandpass environment.

The cut-through into the cabin is the equivenant to the mouth of the "port", the sub box acts as the acoustic suspension enclosure, and the remaining trunk space acts as the port itself.

This type of setup is hit or miss, if done right, it sounds killer, (as you have done), if volumes are miscalculated or coincidentally built to the wrong specs, the subs will either sound like crap, or the power handleing of the subs will fall through the floor at the enclosure's tuning frequency.

Basically, you could get lucky and it'll sound great, or unlucky and you'll blow subs often.

LOL...thats why you let a pro handle it! My guy won the Deutsche Meister in SPL dB drag....and came in second in SPL dB drag for overall europe....he always preaches "form follows function"

@COP......you are running a 15" Hertz as free-air???? whoa...i have to do some quick research but that cant be right......

[adrean8j]

Ok I need more info....any subs you hook up(correctly that is)should make a noticeable difference immediately...regardless of the metal plate between the backseat and trunk.....how many watts RMS will your amp push to each channel? For that matter how many channels is the amp? That Hertz/Focal(elettromedia) speaker data is:
Größe
380 mm (15")
Wirkungsgrad
98 dB/SPL
Belastbarkeit
1200 W Max. - 600 W RMS
Impedanz
4 Ohm
Schwingspulendurchmesser
75 mm
(and it IS a free-air 15")

They no longer make this speaker:



..the new one looks like this


.........anyway a 15" inch woofer facing back or forward is not going to be stopped by some sheetmetal....esp. not a Hertz subwoofer(Focal for you stateside folks...)

[carstereopro]

Originally Posted by adrean8j

....esp. not a Hertz subwoofer(Focal for you stateside folks...)

Are they identical to Focal?

Most of the US hasn't even heard of Hertz yet.

I am a manufacturer's representative for a few companies you may have heard of in Europe, lol, like Boston Acoustics, Sony Mobile, Mitek Corp (made up of MTX Audio, Xtant, Coustic, Streetwires), Autopage, Soundgate and Pontus (Hyundai Autonet).

I have friends who are the Hertz Reps in the Los Angeles market, and they've sent me all the info on the product line. They wanted me to take th eline on to rep in the northeastern part of the US.

As far as I knew Hertz was a division of Audison, I didn't know there was an affilliation w/Focal.

[cop]

Yes Hertz is made by Audison here in Italy Focal is French made Audison import in Italy the Focal lineup.

[adrean8j]

They all fall under Elletromedia if I am not mistaken......that would be great to have a rep in the Northeast.....Hertz and Audison are more like a "boutique" style company....(dont know if the analogy holds up) in that they dont even attempt to sell by volume but more by quality and word of mouth....some of the best equipment out there IMHO....

p.s. whose breasts are those?@carstereopro