is there a sql sub out there better than the TC LMS4000?

[anton lavey]

thank you very much john. your av15 sounds like a very good sq subwoofer. my only concern was not sq, but out-put. i see know that your sub can easily match what i was looking for. now... ar we going pr or ported?

 

[T3mpest 10+ year member]

thank you very much john. your av15 sounds like a very good sq subwoofer. my only concern was not sq, but out-put. i see know that your sub can easily match what i was looking for. now... ar we going pr or ported?

How much room do you have? If you have enough room to do a very large vent there should be no chance of port noise 4inches with a flare should be more than enough even at high input levels.... If you want to save space and really don't want to deal with any chance of port noise do PR's, it just costs a bit more.

 

[Kyle_Keating 10+ year member]

personally it's not sensative enough for my taste. Low end sensativity is very good I'm sure, but low bass is so easy to get in car that I'd rather get some easier free output up top at 80 than more gain at 20. SPL in a sealed enclosure is all about effeciency up top and xmax and you ability to use it wthin a given box constraint down low. You need xmax to get loud sealed, but if you need to too big a box to get the thing to move then it's worthless.
Have you modeled the LMS 4000? The Q is really high unless you go with a very large sealed box. Anyway the AV is around 90db/1w/1m and will operate in the smaller enclosures you normally see in a car alot better. Before displacement becomes a factor xmax going from 22mm to 30mm is a gain of maybe 1.5db's. This will only matter at frequencies where you drive level would exceed 22mm in order to reach that target SPL given a 15" cone. However, the 5db's of effeciency you gain up top with the AV is substancial from 50hz on up that's going to matter more than xmax. IMO, it's a better match for a car, especially since you can get a q of .5-.7 in relatively small boxes.

Very true. You design a driver around a bandwidth. Where one will perform well, the other may not. keep in mind sensitivity can be more specifically defined in terms of not just motor vs weight * cone area, but rather in terms of displacement. A high sensitivity driver will most likely not be linear enough and run out of a bl at high displacement or low frequency rendering it into a low sensitivity driver when pushed into that state. So while you might get to a given displacement faster, you have less headroom and there lies a trade off. There is no right or wrong way, just different. However, the new LMS-R adds about 3dB SPL on top of the LMS-4000 has has a much lower Q making a bit better for ported boxes and requiring less power.

 

[Duran 10+ year member]

fvck you dumbass and stop thread jacking. we all know the sql quote has been went over a thousand different times in just about every car audio forum. duran=fail
GTFO!!!!

Then why do people insist on using the term when it has been gone over a thousand times bub? Because people like yourself still DON'T get it.

Do not tell me to leave as I have advice to the original poster, I told him there enclosure and installation is more important than driver choice. Swearing like an e-thug is really macho buddy, and not how a "Senior VIP" member should be acting. Are you still stuck in high school? Your quite a few years older than me and I'm more mature than you.

 

[thorshammer1 10+ year member]

I know I'll catch some flack for this but I think you should try a DC lvl 3 //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

Its an amazing driver that sounds great in sealed and ported enclosures. Its extremely musical and if you want it can get really loud //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif

Mounting Depth 8"

Mounting Hole Diameter 14"

Motor Width 6.5"

Weight 21lbs

VC Diameter 3"

Magnet Weight 17.5lbs 17.5lbs 17.5lbs

Power Handling RMS/Peak 600/1200

Impedance D 4 or 2ohm

Sd 791.00 cm²

Vas 32.10 L 74.15 L 162.80 L

Cms 1.86e-04 m/N

Cas 1.16e-06 m^5/N

Mms 198.55 g

Fs 26.2 Hz

Bl 22.18

Re 6.10 ohm

Le 5.06 mH

Qms 8.40

Qes 0.71

Qts 0.65

Xmax 22.5 mm

Sensitivity 88.0 dB

Suggested Sealed 1.5³ - 2³ ft

Suggested Ported 3³ ft

Suggested SPL Ported 4³ ft

 

[bose301s 5,000+ posts]

I know I'll catch some flack for this but I think you should try a DC lvl 3 //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif
Its an amazing driver that sounds great in sealed and ported enclosures. Its extremely musical and if you want it can get really loud //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif

Mounting Depth 8"

Mounting Hole Diameter 14"

Motor Width 6.5"

Weight 21lbs

VC Diameter 3"

Magnet Weight 17.5lbs 17.5lbs 17.5lbs

Power Handling RMS/Peak 600/1200

Impedance D 4 or 2ohm

Sd 791.00 cm²

Vas 32.10 L 74.15 L 162.80 L

Cms 1.86e-04 m/N

Cas 1.16e-06 m^5/N

Mms 198.55 g

Fs 26.2 Hz

Bl 22.18

Re 6.10 ohm

Le 5.06 mH

Qms 8.40

Qes 0.71

Qts 0.65

Xmax 22.5 mm

Sensitivity 88.0 dB

Suggested Sealed 1.5³ - 2³ ft

Suggested Ported 3³ ft

Suggested SPL Ported 4³ ft

Sorry, but compared to the drivers that are being discussed the LVL 3 will sound like ****.

 

[MmatsDude 10+ year member]

Sorry, but compared to the drivers that are being discussed the LVL 3 will sound like ****.

lol

 

[thorshammer1 10+ year member]

Sorry, but compared to the drivers that are being discussed the LVL 3 will sound like ****.

I tell ya what if you have one of these drivers discussed I would gladly drop a lvl 3 in for comparison //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif To say it would sound like **** is harsh to say the least but hey everyones entitled to thier opionion lol

 

[SPLaudio 5,000+ posts]

dc is a spl based co, they ment to get loud where tc WAS a sql co. i'm sure the dc dose sound good rob but these just a different class of driver. such things as stacking spiders and sq is a no no.