JohnVroom

Yes the Impala builder is a sooth sayer!

Buy stuff that sounds good to you, you can spend a fortune and be unhappy and you can scrimp and get serendipity, it is all in the install and equipment synergy.

Good point on the rulebooks… each sanctioning body has details they are looking for (conduit, security screws, and heat shrink for USACi for instance).

Don’t think you have to buy ever bling bling vogue piece out there... just good, solid equipment.

Oh yeah try to keep it simple silly.

Impala Builder

If your planning on using that P9 and JL amps you mentioned and running passives ( I think thats what you are saying) your wasting money. If you use passives wit a P9 then forget about using the P9 processor because your not going to use 50% of its features. I can guarentee you that after you first real tune on the car you'll be loosing the passives, and rewiring to make each channel dedicated to it's own output (not bridged) and using the 100 % capabilities of that P9.

3 DLS A3's will knock you socks off, they are 100 X2, and are a true dual mono amplifier. If you wants crazy power they will do 1000 bridged.But for the sq portion of competition you don't need that power on a sub. IASCA guys like Scott Buwalda, and Steve Head use these amps

Two tricks that you can do for subs.

1: Make a convertable box. One that is ported or sealed for SQ, then converts to a bigger box, or different port for SPL portion. (Rina Beckhams Ram has a box like this)

2; Build a switch system that will re-config the amplifier for sq and spl.As in change from a 4 ohm load to a 1 ohm load( depends on speakers used)


I could go into why bridging is not good for a front end, but thats a LOOOOOOOOOONG post.

Trust me on this one. Use a dedicated channel per speaker.

[ January 03, 2005, 11:07 PM: Message edited by: Impala Builder ]

Pitbully

Lol so much conflicting information with many sites. I read in some places to forget the minor loss in distortion and go for more output power and now I hear the opposite. Dont get me wrong I am trying to learn, just a lot of information out there. Spending 2-3 hours a night researching this on the internet getting prices and seeing what is feasible.

So you are suggesting 100w for each speaker. 100w tweeter seems to be pretty powerful. So if I run it in 4 ohm loads I assume something like this would make more sense (assume being the word here)

50w tweeter(2) 100w mid(2) and 300w (1)sub all running in 4 ohm. Being that I am going to las vegas at the end of the month a purchase could be feasible as I wont have to pay any duty up to 700. I am trying to get a decision on this before going.

I see the DLS amps are going for 500 us ea...

JohnVroom

Cory has an awesome ride, I was just looking at his scores last year and this year... it is not a fluke.

JohnVroom

Don’t let distortion specs drive your decision... what does .002% THD sound like? For that matter what does 1% THD sound like? My point is it is a measure of electrical distortion not a measure of audible distortion.

Amps should be selected for several reasons (no particular order)
1) Price to performance
2) Reliability
3) Power ratings and their ability to meet your needs (and the ability of the amp to achieve the ratings)
4) Sound quality of the amp (if you believe that amps sound different like some of us do)
5) Do they fit your install?

Impala Builder

1: don't worry about all those spec's you'll drive yourself nuts and it wil mean nothing in the end

2: Never said don't go for more power, just use what you really need ,more is better up to a point. Going over board is just a waste of money.For SPL you may/may not need more power so design something to re-config your system (not very hard)for your subs. Don't think that you just need power for SPL. I had a 90 civic with 2 12's in it run off a mtx 240 (20X2) and that car did 144's. it was bridged for spl, but it is a tiny amp that on a good day did maybe 100 watts total. So you can see that a properly built enclosure will get loud.


3:I suggest you stick with a Canada dealer for any product you buy. How are you going to get any service if your dealer is 3000 kms away ? Also if they are not an authorized dealer your warrenty may be void or a shorter time frame, or not even valid in Canada. Check up before you buy.

[ January 04, 2005, 06:47 PM: Message edited by: Impala Builder ]

Pitbully

Guess I am going to have to drive outside of Ottawa as I dont see many stores that have competitions here. I want that to be a part of their resume like impala said if they havent competed what good are they to me?

Sassmaster

iTrader: (2)

That power setup looks fine. I'd say get some nice gear, set it up, and let the judges make suggestions, then let other people make suggestions, learn as much as you can, and get as many people to help you as you can.