to hifonics nay-sayers

[kr15 5,000+ posts]

The AQ is rated at 1.2k at 12v...it is like 1440 at 14v or something, so I would expect there to be a difference between that and a bxi1200, which in reality probley does around 900-1k. 1440 > 1k...As to the DSC, many people claim they do over 1.5k, and all the test I have seen place them right around 1600. There shouldnt be an audible difference between 1440 and 1600 in all actuality...That said, I still like my MBQ and so no reason to swap out for my Atomic, or any other "it" amps like AQ or Sundown

 

[whitedragon551 5,000+ posts]

It's a good indicator. What?

In lemans terms the more uF = the more power. So the MB Quarts could have lower uF capcitors while the AQ could have larger uF capacitors. Quantity isnt always an indicator. Even if they had the same uF ratings on the caps there are different grades. The tolerances in the MBQ could be a 20% while the AQ could have caps that are a .5. If that were the case the MBQ could possibly be over rated. Of course this is all subjective, but still a possibility.

 

[hatedonmostly 5,000+ posts]

The AQ is rated at 1.2k at 12v...it is like 1440 at 14v or something, so I would expect there to be a difference between that and a bxi1200, which in reality probley does around 900-1k. 1440 > 1k...As to the DSC, many people claim they do over 1.5k, and all the test I have seen place them right around 1600. There shouldnt be an audible difference between 1440 and 1600 in all actuality...That said, I still like my MBQ and so no reason to swap out for my Atomic, or any other "it" amps like AQ or Sundown

AQ is 1200 @ 14.4 @ 1% THD, 1440 @ 5% THD.

I noticed a difference honestly, my setup was louder and the coils didn't get warm nearly as fast...

In lemans terms the more uF = the more power. So the MB Quarts could have lower uF capcitors while the AQ could have larger uF capacitors. Quantity isnt always an indicator. Even if they had the same uF ratings on the caps there are different grades. The tolerances in the MBQ could be a 20% while the AQ could have caps that are a .5. If that were the case the MBQ could possibly be over rated. Of course this is all subjective, but still a possibility.

Not more output power, just more intake reserve to hold power.

 

[DarkScorpion 10+ year member]

Kind of makes you wonder why AQ is such a forum boner if "shitty Maxxsonics" equipment shits on it for a fraction of the price.....

Actually, when the DSC line was released it was a MASSIVE boner because of the price. If it was priced as MBQ is priced now, it would have never achieved boner status, guaranteed. That's the biggest reason I bought my 1500 and 4125 - they were RIDICULOUSLY cheap, and their quality was out of this world for how much they cost at the time.

 

[hatedonmostly 5,000+ posts]

That's really the underlying factor though, a MB Quart 1500W can be had for just pennies more than an AQ 1200D, making it still a better value for the price than the AQ...but the fact remains that because MB Quart isn't an "underground" company, it won't have people hopping on the bandwagon as quickly.

tl;dr, people buy specific car audio products for stupid reasons. Like people who pay $350 for a Sundown 1200 //content.invisioncic.com/y282845/emoticons/laugh.gif.48439b2acf2cfca21620f01e7f77d1e4.gif

 

[d77543020 10+ year member]

Actually, when the DSC line was released it was a MASSIVE boner because of the price. If it was priced as MBQ is priced now, it would have never achieved boner status, guaranteed. That's the biggest reason I bought my 1500 and 4125 - they were RIDICULOUSLY cheap, and their quality was out of this world for how much they cost at the time.

this new line will be just as cheap in time thats the good thing about mbquart/hifonics amps(if you wana say its a good thing)there prices fall fast thus giving you good deals on used amps while other brands like aq or rockford you will be hard pressed to find a good deal,the aq 2200 still sells for 300+used you might as buy one new,i rather have 2 mbquart dsc 1500 for the same price and get 1000 rms more

 

[hatedonmostly 5,000+ posts]

this new line will be just as cheap in time thats the good thing about mbquart/hifonics amps(if you wana say its a good thing)there prices fall fast thus giving you good deals on used amps while other brands like aq still sell for close to new prices for used amps and its not becaues they are that much better its just the perception

//content.invisioncic.com/y282845/emoticons/thumbsup.gif.3287b36ca96645a13a43aff531f37f02.gif

 

[d77543020 10+ year member]

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im not going to sit here and act like hifonics amps are not overrated because they are a rep on youtube even said the "hifi line of amps "are overrated by 10 to 18%" but with mbquart and the new hifonics brz line those amps will do rated so the Brutus and hifi line which is a upgraded brutus are the only amps you have to worry about but for the price they are ok

 

[whitedragon551 5,000+ posts]

Not more output power, just more intake reserve to hold power.

The more power on hold the more power that can be used during bursts. Same thing goes for batteries, capacitors, etc.

 

[gunz4me2 10+ year member]

AQ is 1200 @ 14.4 @ 1% THD, 1440 @ 5% THD.
I noticed a difference honestly, my setup was louder

You noticed a difference with a 300 watt RMS increase on subwoofers? Keeping all other things equal, I generally won't bother with swapping amplifiers unless I am doubling my RMS power.

 

[Haunz 10+ year member]

what type of power supplies do D class amplifiers employ...

A class D amp can use a regulated or unregulated power supply... I recall reading that all of the amplifiers Hifonics (and maybe Maxxonics) produces are regulated... But the vast majority of amplifiers on the market (class D or otherwise) are unregulated...

Going back to an old post made by Rob Minichino, he explains that with a regulated supply at reduced voltage although the current draw is greater, the power dissipaited by the fets is over a longer cylce. This results in slightly lower operating temperatures and a greater efficiency. - And I trust what this man says.

As far as an amplifier with an unregulated power supply, less input voltage means less current draw and less power output, period.

Anyone who still believes voltage drop can harm an amplifier is going to have to agree to disagree with me...

 

[Haunz 10+ year member]

In lemans terms the more uF = the more power.

That isn't necessarily true at all.

The large caps in an amp are there to filter AC ripple from the power supply. Although having larger/greater number of caps can be indicative of a more powerful amp, the size of the caps also depends on the switching frequency of the power supply.

A supply that switches at 10MHz will require significantly smaller caps then another supply that switches at 1MHz....

 

[SicAudio 5,000+ posts]

then every single amplifier company on the planet disagrees with you...

look in any amp manual... they all say it...

as for the guy with the 1200 brutus...

sad to say it is the only brutus amp that I couldnt get within 10% of its rated w/o clipping.. they averaged around 900 to 1000 to get 1120 or so out them you had to soft clip and at 1150 they would hard clip //content.invisioncic.com/y282845/emoticons/frown.gif.a3531fa0534503350665a1e957861287.gif .... so no surprise the aq1200 did better by a bit..

 

[Haunz 10+ year member]

then every single amplifier company on the planet disagrees with you...

:facepalm:

I will only add that the reason low voltage protection circuits are put on car amplifiers is because if the voltage drops too low the op amps will not function correctly...

 

[SicAudio 5,000+ posts]

but if they hang at just above the Protection circuits limits at say 11 volts or 10.5..... yeah thought so... lots more current making tons more heat...