help 2way or 3way components

rigman00 · Posted: Thu Oct 08, 2009 9:03 pm Post subject:

elemental designs 7" woofer = sweet Laughing

X_Factor · Posted: Thu Oct 08, 2009 9:19 pm Post subject:

would one 7" sub be enought?

i mean u will know that there is bass but would it be intense enough and give good subsonics?

rigman00 · Posted: Fri Oct 09, 2009 5:45 pm Post subject:

depends on the type of enclosure....go with the specs on the website it should work nice

slacker_jack · Posted: Mon Oct 12, 2009 8:57 am Post subject:

rigman00 · Posted: Mon Oct 12, 2009 11:18 am Post subject:

for the 7" its like 0.5 ported...works great for me. i have 2 of them in a 1.0 cubic enclosure tuned to 30hz

basshead · Ricer Joined: 17 Feb 2008 Tech posts: 28 My 2NRide:

i got a mtx 5500 8inch instead goin and put it in a sealed enclousre and loudsound doin the A pillar for me i droped it today

nemesis · Posted: Thu Oct 15, 2009 12:19 am Post subject:

If you going with the 4" on the A-pillar chose your products very carefully. Will probably also have to install more than once to get the angle correct. Have had in 2 cars already, and I think it is very difficult to get right.

roger · Posted: Wed Oct 21, 2009 11:39 am Post subject:

any pics or updates on this build??

De Hero · Street 2NR Joined: 10 May 2006 Tech posts: 32 My 2NRide:

roger · Posted: Thu Oct 22, 2009 7:19 am Post subject:

^^ well my experience has taught me to keep the midrange as far forward as possible (research pathlength differences)

with respect to the between the tweets and the mid range...it depends on the useable frequency response of the midrange.

i personally would not put a midrange in the lower part of a door.

personally i like my midranges mounted above the dash because i do not use an eq in my car.....so i tend to prefer A-pillar mounted mids. But be aware that this configuration has its inherent issues to overcome, and one must have a substantial amount of control over individual signal intensity and signal arrival time to safely pull it off.

kick mounted mids are usually easier to get right (again, research pathlength differences).

hth

De Hero · Street 2NR Joined: 10 May 2006 Tech posts: 32 My 2NRide:

Thanks roger - yes on PLD's comment (minimise at the outset and have less to to do on TA adjustments at the tuning stage).

Do you think that Dome mids would handle the off -axis issues better (in a door location) than cone mids Specifically thinking about say a Dayton RS52 dome. I know that beaming may be one of your concerns.

Agree on the kicks location comment - think I can pull that off - not sure (as this is my first attempt at this active/sq thing) if I am willing to live with the real life implications of a A pillar mid/tweet comb pod. I am still creeping.

Will have to forgo TA in my current plans as I do not have a 3 way or even 2 way capable head unit - Damn but the top o the line stuff is expensive (Say clarion DRZ9255 level HU)

I have 3 pairs of outs and a deck capable of high pass / low pass (F+Rear vs Subout) 60/80/100/120 Hz - But I do have a plan formulated using a DLS RA50 - 5 channel and a small 2 channel. The 5 channel has High Pass 1+2 / Band Pass 3+4 / and Sub out - crossovers are 12dB slope octave.

Do you think it will be impossibe to go active (much less three way) using 12db slope octave amplifier based x/overs - I have another amp to throw in the mix for mid bass BTW.

I have been doing research and I know what the optimal equipment might be for a project like this - but the cost can start to mount. I want to use as much stuff as I have already got (And I DONT WANT TO BECOME THE CURATOR OF AN EQUIPMENT MUSEUM!!!!!!!!)

Been looking at Zaph Audio site - he uses 4th order LinkReilly x/over (accoustic slope) so that so far nothing seems to confirm my amp/only x/over approach.

Also notice that the better cross overs (say AudioControl DQXS - sweet unit - but over US$300) tend to use 4th order 24dB slopes.

Yipes this was a long post...........

basshead · Ricer Joined: 17 Feb 2008 Tech posts: 28 My 2NRide:

no pics yet loudsound real sick boy

De Hero · Street 2NR Joined: 10 May 2006 Tech posts: 32 My 2NRide:

X_Factor · Posted: Thu Oct 22, 2009 9:07 pm Post subject:

if i get another pair of A pillar mouldings i'll be trying this as well

jeff · Posted: Thu Oct 22, 2009 11:02 pm Post subject:

De Hero · Street 2NR Joined: 10 May 2006 Tech posts: 32 My 2NRide:

Thanks Jeff - Will try to do that next event. But just to set matters straight - I have no interest at the moment in competing - I just want my system to sound better.

I dont even know what better means - so I got a lot of work to do.

roger · Posted: Fri Oct 23, 2009 8:03 am Post subject:

De Hero

1. Unlike jeff i think that domes actually have better of axis response than cones..generally ( i have done both dome and cones in A-pillar installs and both on and off axis). If you are thinking of axis then beaming will not be an issue.

2. if you have to forgo TA then i will advise kicks for the midrange (again, PLDs). In setting up A pillar mids one would more than likely be setting up a single seat car, therefore TA capabilities are a must! there are numerous "real life issues to deal with with A pillar installs that need strong processing in some cases. If you do not have the processing capabilities that give you significant control of the signals...then i you will be better of with kick mounted mids.

3. you can do active with the dls amp with the 12db slpoes

4. do not be concerned overly concerned with the zah audio site...not at this stage....experience will teach you more than you can read on any site!

5. like jeff says..visit the next sq event and see and hear what the competitors are doing. you will hear an awesome sounding system with 6 passives and 1000' of wire, you will hear kick mounted mids, dash mounted domes, etc...we do it all!!

SR · Posted: Fri Oct 23, 2009 8:13 am Post subject:

sigh

the basic fundamental is being forgotten here

before being concerned with pld's and time alignment

tonal accuracy is what should concentrated on as a primary function

without correct tonal accuracy everything else is just trivial as you can have perfect imaging but it sounds dull and boring

good tonal axccuracy makes the system sound alive
once you have a good foundation for tonal accuracy then look at plds etc

dls 3 ways perfom quite well with the mid and tweet close to each other
just get them as far forward as possible on the dash

keep in mind vehicle acoustics differ from one vehicle to another

if all goes well i will be changing the front stage in the ody to a 3 way setup with the mid and tweet dash mounted on pods

presently it runs a 2 way setup on the dash and subs in the doors
stage width and depth is fantastic and the attack on the soundstage is very lively crossed at 30hz using the passives for the 2 ways as well

roger · Posted: Fri Oct 23, 2009 8:51 am Post subject:

i want to challenge yuh on certain points there....but i will do that in a mano y mano fashion.

SR · Posted: Fri Oct 23, 2009 9:29 am Post subject:

no problem

let me make the changes to the system

or we can debate over the system in the civic until its sold