worf928

Ummm no.

Every VW I've seen has had Blaupunkt speakers. Speakers from my GTs bear absolutely ZERO resemblance to the MBQs I put in the '91 last summer. Like night and day.

spode134

Maybe so, how many VW's have you taken the speakers out of?
MB Quart typically uses a paper cone of a very light design with a small voice coil, high X-max, butyl rubber surround and smallish magnets. Up until recently oem european stereos far surpased stock domestic systems in part because of the use of higher quality components including Blaupunkt head units and speakers. The cast frame speakers i have pulled from Audi's and Jetta's bear no resemblance to the off the shelf stuff the Blaupunkt dealers sell.


Darrin, owner
DG Electronics
25 Yrs.

docmirror

Dave completely changed his system including amp. The Crutch, and all modern speakers are a four ohm impedance. In your 89, you have a ten speaker system, of ALL two ohm impedance driven by the amp. This causes no end of confusion among retailers of sound systems, and hobbyists. The impedance must be matched to the output of the amp, or you will get reflection on the audio line, causing buzzing, and poor dynamic range.

On all 89 to 92 cars, the speakers are two ohm. I think the GTS resolved that by changing to a different amp and driving a four ohm system. Look at the back of your speaker, find the rating, it will look like the Greek Omega symbol, and have a number in front of it. that number is the impedance of the coil. To upgrade a 89-92 car, the amp, crossovers, and speakers should all be changed. I don't have a brand preference, Polk, Infinity, Fosgate and others are usually made in Mexico, or Malaysia. The only US maker that I know is Bose. Alpine used to make speakers in US, but I don't think they do anymore.

Rate speakers not by the "Watts" number, but by the Efficiency rated in DB per Watt @ 1 meter(usually between 85-92Db) higher is better. also by the weight of the magnet. I know, that seems just too easy, but trust me. A speaker that is rated at 400 Watts, but only has a 30oz magnet, is going to last about two hours of music time. All magnets are Fero- (Iron) blahblahblah. don't be fooled by claims of some exotic material. Reconing your speakers in the 89-92 cars is possible, but the crossover and coil may still not be up to snuff. It was pure junk, and should be done over completely.

YMMV. I haven't been in the car stereo biz for many years. It's one of the biggest ripoff businesses right up there with carpet cleaning and cell phones. If you take your car to a stereo shop, you WILL get screwed to the wall. Also, as another mentioned, your 928 eletrical gremlin nightmare will keep you screaming in your sleep. Study, do it yourself. Don't buy just because of brand name(they're all made by a few companies overseas). Speakers are far more important than the amp!

Jfrahm

"Any one else ever notice the resemblance to MB Quart the oem german speakers inAudi/VW/Porsche have? Coincidence....?"

MB quart are like ITT or Nokia speakers? yuck :-) I have Eclipse Point Source, outboard crossovers. I needed to make a spacer to fit the doors but they sound great.

-Joel.

worf928

A handful. All 80's models.

That description bears little resemblance to the MB Quart speakers I installed in my '91. The P-series uses a Poly cone, and ABS composite basket. No paper anywhere - unlike all 10 OEM Porsche speakers. The 4" MBQ weighed a lot more than the OEM 6".

When you write 'typically' do you refer to MB Quart OEM systems? Or after-market?

worf928

I doubt it.

spode134

Speakers are pretty low tech devices, no matter what the cone is made of what size the magnet is etc .Big voice coils give big power handling less efficiency. Big magnets , good damping and heat dissapation but hard to fit. As long as the cone is still stiff... as in paper which gets soggy from the humidity in a car or from wear and tear, it's a piston , it's job is to push the air. Paper is good cause it's light , just like anything light it can accelerate faster than heavier plastics and composits, the trade off is longevity in the hostile enviroment of a car.
I have found that some pretty mundane looking speakers sound really good if you push them with a clean amp have decent wire feeding them and in the case of a single cone speaker add a nice quality dome tweeter mounted in the door panel or dash.
I dissagree with Doc in that speakers are more important than the amp, they both are, and in both you get what you pay for.
Just an opinion.
Darrin.

BC

The system in my 89 was all redone by the PO. I hope Sterling isn't listening, but there were some Hacks in the wiring, but it was mostly okay. They are all MB quarts, with crossovers and filters I guess. I'm not an expert in this at all - but I do know the difference between 1k and 5k dollars can rarely be heard.

atb

I'm running the Boston Acoustics 6.5,3 in the doors, very nice sound. I haven't heard the MBQ's inside a 928, but in the store display I thought the B/A's had a warmer sound.