MB QUART amps ???
 

Anyone ever use any of these amps, i have done some searching on them and seems all good reviews?? Just wanted to see if anyone has actually used them..

Thanks..:coolcowboy:

Go with Alpine PDX's or the JL digitals. They are compact, have a low power draw, don't get real hot and put out lots of power. Me and several friends run the Alpine PDX's.

A friend of mine uses them in his plow trucks and kawasaki mule that he has all decked out with subs and component speakers. He loves them and a mutual friend at a high end stereo shop in GR MI told us both that they are a good quality amp however are lacking all the marketing bs. They drive his subs great and his highs are very crisp. If your looking to do a build and want quality stuff without paying top dollar then go for it. I am not disagreeing with Griff at all however just going by what a good friend claims them to be and he likes good tunes. As Griff mentioned though the newer JL's and Alpines won't draw as much and are very efficient.

JL has just come out with there "HD" series amps.....up to 50% less draw than previous amps ans smaller in size.

I know your question asks about MB Quarts but the new JL's are worth a re-visit.

I am actually a dealer for them, not our biggest line, but very good equipment for the money. JL and Apline are also good. But if you want small you may want to check out arc audio

Not trying to hyjack this thread but has anyone tried the Kicker ZX 700.5 to power one sub and four mids? If so any thoughts on it?

I would personally stay away from kicker these days, some will disagree but we use quite a bit of audio equipment and kicker is worse every year. 5-channel amps are a bit tricky, memphis makes a very good one and planet audio has a nice piece also

I would get the 5 channel Alpine PDX5. I think its 75x4 and 300x1. The Alpines are under rated on output watts and will most likely sound just as good, if not better.

I had Alpine PDX's in my last boat too. One of my buddies is an ARC dealer, if you need help on some pricing let me know.

MB Quart use to be the stuff to have. I heard they are owned by another company now and I am not 100% sure about them. But anything I have seen MB has been an awesome product.

Seems like I read the same thing recently when I googled them. Didn't read any negative things though throughout the search. You never know now adays.

you ever get your graphics laid out?

Thanks for all the input... I would loveto have JL or ALPINE amps, but i just didnt want to spend the $$ on them at the moment. I have some other irons in the fire that is keeping the budget a little tighter than i would like..lol

I did end up getting 2 of the MB QUART amps
(MB QUART DSC4125) I havent received them yet.. i will follow up with how they are after i install them. I will have them pushing 8 polk audio 6 1/2in mids, and just going to reuse the rockford amp for the subs that was in the boat when i bought it.

I really could not beat the price, i ordered them 2 days ago from this place for 132.00 each with free shipping.
http://www.vminnovations.com/product...Amplifier.html

If they last me one summer hopefully then i can upgrade them to JL AUDIO

I can hook you up with Focal 6.5 speakers too, we used the Polks for a few years and switched to the Focal's.

what kind of price can you get on the Focals??:drink:

Polyglass 165 CXV for $215 a pair.

Big fan of MB Quartz. I have 6 - 6.5 MB's and 2 - 6x9 MB's running on a 4 channel MB amp. Love it. It rocks. Hurts your ears. Also have a Solobartic 12" Kicker running on a Fosgate amp. Got a deal or I would run MB's there as well

MB Quart hasn't been right since the late 90's. The name has been whored out to anyone that'll build they're stuff and lately it's drastically downhill.

ALSO, there's a few out there, especially on ebay, that are knockoff's of the already cheap MB Quart product line.

How would you know if they are knockoffs? I bought a couple sets off Ebay and they seem to work good. I not a stereo expert so I would have no way of knowing.

MB are made in japan.Rockford bought them a few years back,floped,some one else has it now,I tried to get grill, they said everything went from Germany to japan

i was suprised with the JL amps!!!!

In a good way I'm sure!! I have the MHD900/5 on the way.

Used them several times with fantastic results ....... if the company changed hands recently like within the past 6 months I do not know if they are what they were.

I have ran this in my boat the last 3 yrs, love it.

What speakers and sub or subs are you powering with it?

Mb quart is not a German speaker anymore. After Rockford sold them about 4 years ago they really went down hill. They are made in Korea now I beleave. The old mb quart that everybody loved is now called German mistro. Have there new speakers sounds a lot like the old stuff people seem to love them. I don't know how old those amps are, but hopefully where are some of the big older ones and not the new ones.

MB Quart made some really nice hi end home audio speakers back in the day…The old school MB Quart guys ended up reforming another company after the maxxonics take over called German Maestro. The technologies are similar…


Basically and of the MAXXsonics units are china. I am not sure where exactly they switched over for the car stuff, but any of the new amps other than the Q series 1000W amps QAA1000, QAA2500, QAA4250 and the reference amps (RAA1000, RAA4200, RAA2400) will be the maxxsonics units. for example any of the premium and discus and marine amps are maxxsonics, and as for the speakers, anything that is new is more than likely maxxsonics units. You may want to ask the seller (if looking to purchase) and verify the box.

FYI on digital amps. Its more hype than anything else... Your stereo puts out an analog signal and your speakers can ONLY play an analog signal. Unless you are running long distances between the head unit and amps that require a fiber optic cable there is no point in digital. Plus you then need to convert the analog signal to digital and then back to analog. All of this creates distortion. All of the alpine stuff is Class D, (which does not mean digital) which is really cheap to make. These amps have came a long way and don't sound that bad anymore. However if your looking for a truely great soundling amp find a class A/B amp... They do take more power and create more heat but its not as bad as some will tell you. I'm a big fan of older SoundStream, Orion, Linear Power and PPI stuff. IMHO none of the new stuff holds a candle to it. All hand made in the USA. If something goes wrong you just take it to your local electronics repair shop they'll fix it for a few bucks.. If something goes wrong with a class d amp you throw it in the trash can.

Is there a standard of measurement that everybody goes by to state what is class A B C D E F G ?

My old Linear Power 3002 is still thumping:drink:

Check this out:

Let's have a quick look at some of the power amp "classes", so we have all the info:

Class-A Output device(s) conduct through 360 degrees of input cycle (never switch off) - A single output device is possible. The device conducts for the entire waveform in Figure 1

Class-B Output devices conduct for 180 degrees (1/2 of input cycle) - for audio, two output devices in "push-pull" must be used (see Class-AB)

Class-AB Halfway (or partway) between the above two examples (181 to 200 degrees typical) - also requires push-pull operation for audio. The conduction for each output device is shown in Figure 1.

Class-C Output device(s) conduct for less than 180 degrees (100 to 150 degrees typical) - Radio Frequencies only - cannot be used for audio! This is the sound heard when one of the output devices goes open circuit in an audio amp! See Figure 1, showing the time the output device conducts (single-ended operation is assumed, and yes this does work for RF).

When I first wrote this article, I had completely forgotten about the Quad "Current-Dumping" amp, which uses a low power "good" amplifier, with a push-pull Class-C type amp to supply the high currents needed for high power. Although these enjoyed a brief popularity, they seem to have faded away. I was reminded of their existence by an article by Douglas Self ("Class Distinction", in the March 1999 issue of Electronics World ), in which he quite rightly points out that the current-dumper is (at least in part) Class-C.

Class-D Quasi-digital amplification. Uses pulse-width-modulation of a high frequency (square wave) carrier to reproduce the audio signal - although my original comments were valid when this was written, there have been some very significant advances since then. There are some very good sounding Class-D amplifiers being made now, and they are worthy of an article of their own.
There are many amplifier topologies which I have not mentioned above, mainly because most of them are either too bizarre, not worth commenting on, or are too complex to explain simply. Of these, Class-G and Class-H use power supply switching and modulation (respectively). This provides greater than normal efficiency and lower dissipation, but both are essentially Class-AB designs.

Although many audio amps may be called Class-B, generally they are not. Virtually without exception they are Class-AB, although most will be at the bottom end (conduction for 181 degrees for each device). Most power amps operate in Class-A up to about 5 to 10mW, after which they become Class-B.

Nice find Fireguy. All I know is that I like the sound of an A/B amp and there simplicity. Class A sound even better but they're really expensive and not very powerful. IF something breaks on an older amp usually a $1.00 part will fix it. But normally they just run and run and run.....