2 12" s12l7's or 2 18" mach 5 audios which would get louder??

[96i30 10+ year member]

i discovered these 18's because someone told me about them on another forum in doing some research they are pretty well made and do what a good job for the price... http://video.snoopdan.com/reviews/mach5.htm heres a link to a review on the sub with termlab test results, also a video check it out...i can get 2 of these 18" subs for 188 shipped to my door. hard to beat that price....i just dont know if i should get them over fixing my blown 12L7 i had 2 12L7s one blew and if i were to keep the setup id have to get a new one around $200+. i had the kickers in a ported box using 1000+ watts at 2 ohms and they hit nicely....down side to these 2 18's is that their 8 ohms, if i got 2 of them id prob be putting them in a sealed box since im limited on space in my trunk and i wont be able to make a big enough box to make it worthy of porting(so i think), and id only be able to put them to 787@4ohms which one do you think would be louder....the 2 kicker 12L7s at 1000@2ohm or these two 18" mach5's at 787@4ohm??

here are the specs of both the subs i know little about the t/s parameters...maybe someone can explain the differences between the specs and why one is superior to the other. thanks!

Mach 5 18

Power Handling: 600 Watts

SPL (2.83v/1m): 93.4 db

Impedance: 8 Ohms nominal

T/S parameters:

Fs = 30.4 Hz

Re = 7.2 Ohms[dc]

Qt = 0.35

Qes = 0.39

Qms = 3.41

Mms = 219.3 grams

Rms = 12.3 kg/s

Cms = 0.000100 m/N

Vas = 243.8 liters

Sd= 1029.22 cm2

Bl = 27.625095 Tm

ETA = 1.07 %

Xmax = 12mm

Diameter= 36.20 cm

Kicker 12l7

T/S parameters:

Spl 1w/1m 87.4

Displacement, cc 2475

Displacement, culn 151.0

Mounting depth 6-13/6

Revc 3.62

VC inductance, mH 3.88

Sd, SqM .0645

BL 16.353

Vas, liters 68.755

Vas, CuFt 2.43

Mms, gms 223.1

Fs 31.2

Qms 10.319

Qes .593

Qts .561

Pmax, watts 750

Xmax, mm 13.20

Click to read more...

 

[skadude016 5,000+ posts]

if you can fit 18's go for it //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

 

[CBFryman2 5,000+ posts]

Hardly a fair comparison. However snoopdan was doing 140's with a single MJ-18 so if you have the room for roughly half the price of one L7 12 Do it.

 

[96i30 10+ year member]

the only way i could make them fit is to put them in the box firing up towards the trunk lid, i was thinkin about maybe aeroporting it with pvc and shoot the port towards the car cabin any opinions?, but with the subs right below the trunk lid im scared its gonna make it rattle like hell, and i have it deadened...

 

[Twistid 5,000+ posts]

can you pass this deal on to your fellow car audio brethren?

 

[CBFryman2 5,000+ posts]

Mach5audio.com mang.

 

[96i30 10+ year member]

http://mach5audio1.netfirms.com/testbed/nfblog/?p=13#more-13 here are some tests done on two of the 18's... what do you guys think?

 

[bigbassman Premium Member]

the mach 5 drivers are showing extremely good promise in the output department..

and the price is kickass to say the least..

Loyd L.

 

[Twistid 5,000+ posts]

wow thats nice, i think i found my new system... time to sell my other L7 and pick me up some 18's //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

 

[96i30 10+ year member]

someone wanna explain what the tests mean hahaha newbie here

do you think they would sound good in a sealed box

 

[CBFryman2 5,000+ posts]

They would need a rather large sealed box.

 

[Twistid 5,000+ posts]

the tests mean for the price they get loud in a SPL box (something thats tuned high)

yea they would sound good in a sealed box, im thinkin mayby 2 18"s in a 4.5 cube box? or is that to small? 5.5?

 

[Twistid 5,000+ posts]

They would need a rather large sealed box.

4-6 cubes?

 

[CBFryman2 5,000+ posts]

I take that back, ~4.5cuft would be optimal Qts for a pair. Wow.

 

[CBFryman2 5,000+ posts]

4-6 cubes?

Would work wonderfully. //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif