How to Drive my Ti 9s?

[ttocs]

I can't decide how to x-over the signal to the Ti9s I will be using in my door. From what I read, it is recomended that they run bandpass from 40-150 hz. I will be using th EQ215ix to split the the signal and that will take care of the upper X-over freq but what should I do for the lower? Ideally I would just use the roadsters adjustable subsonic filter to take care of it but I am planning on using the sub section to run my RSDC10s, and was going to use the MQ430 I have to run the Ti9's which does not have a subsonic filter. I have considered using an high-pass f-mod to do it but I hate the idea of loosing the power to the fmod. I also have an AX204a that I could use but it seems a little overkill to use it just for the bandpass section and ignoring the rest of it. Should I try and trade/buy an amp with an adjustable subsonic filter?

I Did manage to spend a little more time on the amp rack this week which is why I am getting more concerned about wiring which could be comming quickly. The sub box will not take long since the lower half use to be my amp rack, just need to glass the top..... Pics to come but I hate to show stuff till its almost done.

[The Golden One]

so are you using part of the roadster to power the ti5's and if so in what way? also does the roadster offer an output for the frequency's that are below your mids lowest frequency

[00goobs]

Are you using the 9887 in this install? High pass the front output of the 9887 @120hz to the 215ix or 500.4 input/crossover and the low out of the 215ix or 500.4 to the MQ430... You wouldn't have EQ on the sub section though...

[davewaibel]

I would think that 40 would be way to low for the 9's, they are not much of a low frequency driver- I would think 72 would be closer to the target for them

[ttocs]

so are you using part of the roadster to power the ti5's and if so in what way? also does the roadster offer an output for the frequency's that are below your mids lowest frequency

Roadster will be powering Ti5's front and rear. I will be using the aux out on the ix to bandpass the rear outputs to help keep the soundstage upfront.

I am using the 9887 and had prettymuch given up on the active portion of the deck since I was using the 215ix to split the signal, but that could be the ticket I need and had forgotten. I am not worried about not having the sub go through the eq as that is what the bass-cube and sub-output control is for. Between that as well as being able to vary the output of the 9's with the lpl on the eq, as well as on the amp(can't decide which would be better there) I should have enough control over everything. I do have the imprint piece as well to help start the tuning process....

[The Golden One]

if you could send the 430 the frequency's below the ti5's from the roadster you could use an f mod for the low frequency's and signal loss wont be a big deal. the reason i think this is the roadster handles more signal voltage than the 430, so the very minor signal loss should'nt effect anything. then if you bypass the crossover in the 215ix you could eq everything, just another option if it may even be possible.

[ttocs]

gave more thought to the active idea. I could put the bass cube in there to do any eq'ing of the ti9s, not sure how that would work or if it would be needed but I did like the idea of having the lpl off of the eq to control the output on the 9's as well as the eq to help tweek it if needed and loosing all that I am not so sure of. I think I would rather use the ax204 to bandpass the signal rather then loose the eq and lpl option.

[Bfowler]

ok, this is what i would do:

from the deck, run rca's from the front outputs to the EQ215x. send the HP signal to the roadster's 4 channel side.

then from the EQ215's LP side go to the bass cube. the bass cube has a sub sonic filter that goes up to 45hz, so you could use that, combined with the lowpass XO on the eq, to give it the bandpass signal you want! and control the 9's volume independently with the lpl port in the EQ215 (then obviously send that signal to the MQ430)


then for your sub just use the sub out on the deck straight to the 600.1 side of the roadster. you could put a second lpl into the roadsters port too so you could modulate your midbass and bass on 2 lpls!

the only downside to this is you would lose your ability to fade between front and rear speakers (but you could adjust them with the sensitivity on the roadster

[kg1961]

guys is it me or will a mq430 run a set of 9's I thought they love alot of clean power? maybe im wrong

the 9's have a rms of 350watt each and the mq430 is 30 x4 or 100x2?

[ttocs]

It is not ideal, but it is what I have at the moment and I have no doubt that the old school amps push a few more watts then they advertised and I am really not all that afraid of putting the two together. I am a little suprised as I thought they were a little more efficient. anyone have an amp that would be better suited, more power and an adjustable SSF?

[00goobs]

Maybe you should try the 600.1 on the 9s and see if you can handle mono up front. That way, you could get an RSD1200.1.

Hello from my phone!

[ttocs]

I don't need that much power for 2 10's but, yea if I used the roadster for the 9's I could use the adjustable filter... Anyone have a 600.1 or bigger they want to trade some stuff for?

[tonym]

Maybe you should try the 600.1 on the 9s and see if you can handle mono up front. That way, you could get an RSD1200.1.

Hello from my phone!

you just changed his total install

[tonym]

double clicked

[kg1961]

It is not ideal, but it is what I have at the moment and I have no doubt that the old school amps push a few more watts then they advertised and I am really not all that afraid of putting the two together. I am a little suprised as I thought they were a little more efficient. anyone have an amp that would be better suited, more power and an adjustable SSF?

sorry remember they were not made by pg. i might be wrong but that is the info in the manual.
http://download.phoenixphorum.com/Manua ... manual.pdf

any one that has owned a pair might chime in

I really hope i didn't wreck your install plans

[ttocs]

wreck them by improving them? Yes it would change things but I would not say wreck....

[Bfowler]

the mq bridged should be giving them over 100 watts each easily....for speakers that are only playing a range of about 150hz. i say you try it before you buy more stuff!

[ttocs]

that is what I thought to begin with but after looking back at it, 100 x 2 and 350 each is not nearly as close as I would like them to be.

[Stryker]

I vote you buy more stuff
Get a 600.1 RSD and ditch the MQ.

[ttocs]

ya know really if I were to get another amp, I would love to get ahold of a sweet 2125 or something with an old school taste that I could show off in the trunk. Always wanted one of those amps and I am sure it would drive the 10s with plenty of power and fix my problem. Don't suppose someone has an extra one that they would be interested in trading a 430 and maybe some other goodies or a little cash?

[Stryker]

Now your talking 2125 and a 430. put the roadster away for a few years and go
for a period install in a way. wait have 1 2125 for the 10's, a 430 for the Ti9's and a 2500 for the front stage.
Something like that. I've always been a big fan of lots of sheer amp and show it off nicely.
Roadster is great and all, but it should have been a 1200.1 and a 500.4 IMO, Now that would have had people lined up to buy it.
It would have been a monster.

[00goobs]

After I repaired my Roadster, I wanted to transplant the 1200.1 in for the 600.1. The 1200.1 runs very cool, even at 2ohms and would fit nicely inside...

I think you could hide a 600.1 somewhere because they run cool and just display the Roadster.

Hello from my phone!

[ttocs]

I am displaying the roadster in the top portion of where the rear seat use to be, facing forward to the interior. I am was planning on displaying the other amp facing the other way into the trunk.

I looked into it and I can still get a 600.1 for less then what the mq would go for, but if I had my choice I would rather run the subs off a 2125 or 2500 if I really could. Like I said I always wanted one of those amps, seems like if I am going to build my system maybe I should do it the way I always wanted>

[The Golden One]

i think if you start changing thing's up too much you will run into alot of road blocks along the way, and as much as i like the old school amps putting them on some of the most power hungry speakers is not going to help things out. yes during their era the MS were untouchable but the speakers back then didnt need as much power to push them, so putting ti's and rsd's on them dosent seem like a viable solution.

[dwnrodeo]

Keep the 430 and use them on the 9's like you planned on. IMO 100 watts should be plenty of power for midbass drivers (I am using 150 watts for my 10" midbass subs) and having stereo sound rather than mono is way better than gaining a few db's.