Sundown sfb low bass performance?


hispls

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Sep 10, 2009
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Central Maine
So, if people had the money and room, would they buy a 10K full bridge or half bridge?
On something that large I just can't see much need for half bridge. Running .7 DCR load on my Korean half bridge 9K vs the same load on SFB 8K is about 1.3dB down. Now if for whatever reason I wanted to jump up to 18V electrical system and wire impedance down to .19 ohm the Zenon built amp would pull way ahead and the SFB would protect or blow up long before either extreme. The full bridge is 1/3 of the size and weight and MSRP is just about half the cost of the Korean one's cost from the factory not including shipping from Korea.

All around and definitely long term I don't think the full bridge will be as reliable but they're priced to be disposable so who even cares?
 
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Bass911

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Sep 13, 2007
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The point is that any "review" without some hard objective data from RTA, SPL meter, or clamp/dyno is absolutely worthless. Human senses are not an accurate measuring device for sound, particularly outside of 2000-5000hz range that our ears are build to be most sensitive and our memory for sound is very poor.

Sorry to hear you couldn't manage to put your Kicker subs in a proper box but there's nothing wrong with them for what they are and despite what some bloke at Kicker told you there is nothing about a square cone that makes it sound different than a round one.


And for all we know you are too. This is why anybody who wants useful data will ask for some RTA or SPL meter results. Precision measuring equipment is very objective
Looks like my point when right over your head. The rta is a waste of my time because no one cares. People are still going to say "I don't care if the rta says this sub is 20 times better, I'm still getting the other sub". I will trust my human hear over the garbage technology that you love so much. The rta stuff has already been done on camera, and it hasn't changed anything. I have had setups with mics that autotune the sound for you in a car and house, and at the end of the day I still changed it because I didn't like the way it sounded. I have been building boxes for years and there is no special equation to make a L7 box. Everyone loved the way my L7s sounded, but none them heard my previous setups. Their opinions never held weight because they were happy with their factory systems. I don't understand why you so in love with a company that isn't paying you. I like Kicker, I just don't like the squares. If you and anyone else on here likes to call me deaf, then I love it. I've been singing since a kid, and til current day no one has told me to shut up yet. Call Kicker yourself and ask them their opinion of the cwq vs L7 qclass sound quality.
 
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Cynic0l

CarAudio.com Regular
Jun 28, 2019
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Looks like my point when right over your head. The rta is a waste of my time because no one cares. People are still going to say "I don't care if the rta says this sub is 20 times better, I'm is getting the other sub". I will trust my human hear over the garbage technology that you love so much. The rta stuff has already been done on camera, and it hasn't changed anything. I have had setups with mics that autotune the sound for you in a car and house, and at the end of the day I still changed it because I didn't like the way it sounded. I have been building boxes for years and there is no special equation to make a L7 box. Everyone loved the way my L7s sounded, but none them heard my previous setups. Their opinions never held weight because they were happy with their factory systems. I don't understand why you so in love with a company that isn't paying you. I like Kicker, I just don't like the squares. If you and anyone else on here likes to call me deaf, then I love it. I've been singing since a kid, and til current day no one has told me to shut up yet. Call Kicker yourself and ask them their opinion of the cwq vs L7 qclass sound quality.
Oooohhhh 👀🙊
 

dragon.breath

Senior VIP Member
10+ year member
Nov 22, 2007
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Al
I ran a sundown saz3000d for several years. I replaced it with a Taramps smart3. Their is 0 difference in the sound.
 

mastershake575

CarAudio.com Veteran
Mar 11, 2015
584
122
Dallas
If you're serious about having a killer soundsystem, great lows and extreme output the amps are important surely but bulletproof electrical should always be the 1st step.
I like wiring low Korean style vs a big full-bridge to beat rise but its personal preference.
Agreed. Power (especially aftermarket alternators) are really the biggest contributor when it comes to mid-tier or higher amps.

The issue I see often with full bridge is they usually go on budget builds which is an oxymoron. "high wattage but cheap prices" aren't usually the builds that involve dropping $800+ on electrical upgrades
 

MattinMO

Senior VIP Member
Dec 31, 2017
1,113
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St.louis, MO
For what it's worth I have seen a bunch of people saying their sfb amps immediately stopped working etc etc I'm sure 99% are noobs that have no business running a 5 or 8k amp
I'm assuming the price of the full bridge amps are attracting buyers that would otherwise be buying planet audio amps and telling everyone they have a 5k which leads me to believe most of it is user error.
However there is something to be said about Chinese full bridge reliability
 

Coolhand20th

CarAudio.com Elite
Mar 27, 2019
1,221
329
Wisconsin
But at least Sundown warranties them with a 2 year warranty and even after that they will work with you on getting a solution if it isn't user error meaning you did something stupid like somehow melt the inputs on it. Seen a post like that from a Salt amplifier then the moron shipped it with no protection in a box of course it showed up poking out of the box and had more damage. Sundown had on the post iirc "How to not ship and install an amplifier!"

Brazilian Full Bridge has had a lot of issues as well. But I would still take a SFB over Taramps. Taramps makes some good stuff and what you get for what you pay it will do what it claims. I even thought at one point about one of their 4 channel amplifiers till I got a PPI i520.4 at DIYMA for the cost of 15 bucks which was shipping. Thing showed up with all the plastic still on it from factory and the guy even threw in new set screws for it! Love that little amplifier and it is 2 ohm so thinking of buying some CDT 2 ohm 6.5s to try.

But yeah I get what you are saying Mattin. Tend to agree when it comes to issues I think with Full Bridge period 99% of the time it is user error and many try to run the SFB at .5ohm then wonder why it fried...gee I wonder why!
 

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