29 replies to this topic

[zimsoundz]

Fangio, on 17 Oct 2011 - 05:08, said:

Adam had 2 x 18" in his Seat Marbella.

Dieter, Adam had a pair of 15's (i'm sure they were 15's not 18's) in the saxo. Remember going across to Ireland (what an event!) in it gassing ourselves out by overcharging the batteries ! it was also the trip that we spent the night in a hotel just off the ferry, slept in and missed work on the monday morning !

I had 3 x 15's in my 106, but had to stagger them. It was however a 5 door so could bring the box further forward. Still managed 160+ out of it.

G

[liam_b@LMB audio]

Zima any idea of what a walled saxo peaks at?

I have some where inside and warm i can do testing in now so can do lots of testing

[zimsoundz]

Now you're asking....erm...from memroy i'm sure i was between 57 and 62 Hz but don't quote me on that. I think with a max of 161.9 back in 2005.

I can't even remember my terra's frequency, it was higher though and got the 165 with that.

Build your box / install. Then test at a range of frequencies. Recording the spl (db) as well as voltage output from amp and current. From this you'll be able to draw a graph of impedance vs frequency. You'll notice something about where the loudest spl was recorded

Edit : the above test does not have to be at full power - this is to save stressing equipment. We were reconing 99's a fair bit at one time BUT your peak frequency will change dependant on power.

Gordon

Edited by zimsoundz, 25 Jan 2012 - 15:39.

[liam_b@LMB audio]

Awsome what power and subs where you using?

Was on bassbox Pro last night and ilthe subs will have 20sq" per cube and 8cu:ft each going to start at 45hz then start playing around with the port

[zimsoundz]

The 106 initially had 3 x DD9915's D2's showing 1ohm.

Initally with 3 x SPL D ext2000ds then with 6.

The batteries were 8 x 2v forklift bats, which were no good. then changed to 12 x 8v cells from golf carts then added another 6 in a battery box below the vehicle. Charged from twin 200A alts with variable reg and a normal 12v alt for the cars electrics.

I drove it in the beginning, including long drives to ESB Sinsheim, but got fed up with mechanical failures due to weight so trailered after that. Most of the older members on here knew it Some of them will remember the red 106 which i wrote off whilst they were all away at the euro finals one here and i stayed behind...doh....

After that came the terra with lots of help from dumdum, tim verhey, tim maatman etc Wish i'd made both vehicles louder But times move on.

I feel old now

[samuelellis]

Zim - you are old

[Ryan.]

was your 106 blue zim?
I think i remember it being at the performance vauxhall event where adam did 163 in the berlingo which was the first time I ever saw db drag

[samuelellis]

yep Ryan it was a blue 5door - some photos of it in my gallerys at the older shows

[dumdum]

ah my south african friend, i had two sx 18's in the saxo, in a wall very similar to how the pic in your first post is, its crap tbh, there is a way to do it for bonus spl

ill send you a pm! its an idea i had yrs ago to get max spl out of a terra for spl in street max, but could be transfered to what you wish to do

i reckon start with the biggest box you can get! then work smaller, bigger is good for efficiency, smaller is better for resonance of the box, but the port also plays a part in that too, i would take efficiency any day, plus with the port you can effectively force the box to tune higher or lower overall

more power smaller box, lower power bigger box

more power the bigger the port

hope this helps

you should p**s a 155 with my design i reckon

Edited by dumdum, 29 Jan 2012 - 15:29.

[zimsoundz]

Adam, before the 18's...weren't there are pair of pro plus 15's in there ? Or was that when we were both playing in NW ?

I do recall the 18's now though.