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questions about set up

Posted: Sun Jul 06, 2008 11:13 am
by deathcloud
Hello all! I am new to the phorum and made a jump from alpine to phoenix gold. I have been doing a lot of research and readings of reviews and am amazed at the reviews of phoenix gold equipment. Already I have switched from using my alpine mono amp to the Rsd 600.1 amp. I have an Infinity Kappa Perfect 12DVQ which requires 400rms so it should do the trick. I also bought the rsd-65cs component speakers as well. Read about those too and I think they will blow the socks off of my old infinity reference components (wayyyy to harsh on the ears if turned loud and does not sound as well as other components i have heard) and hopefully the rsd-65cs will live up to what i have read about them. I am also going to really soon purchase the Phoenix gold rsdc124 subwoofer! I think it will be better than my infinity kappa perfect 12DVQ sub. Questions time:

I only want 1 sub and dont plan on having 2 in the back of my car so am I right going with the rsdc124 (dual 4 ohm voice coil) rather than the rsdc122 (dual 2 ohm voice coil)? Which one is the better bet?

There are three crossovers and I am always confused on which one to use or not to use. Theres a crossover included on my deck (Alpine CDA-9855), Crossover from infinity components (installed in door), and then also I have HPF on infinity 4-channel amp. What is the best way of configuring this set up. (ie use the crossover on the deck, turn off the HPF on the amp because it shouldnt be) i know how to install but getting the crossovers to the right hz and all that jazz you could say im a bit LOOOST!

I hope making this jump was not a bad idea and I hope to soon pimp out my whole car in phoenix gold and totally impress my friends and hopefully make them switch over as well!!!

Future plans
rsd500.4 (but was thinking if it is only 78rms x 4, should I just stick with my Infinity Reference 7541A 4 channel amp which is 111 rms x 4 because at least this is closer to the desired 120rms that the components require)

Posted: Sun Jul 06, 2008 1:19 pm
by fordtough1
Welcome to the Phorum! You won't be disappointed with PG equipment!!

I think the RSD 600.1 amp makes it's power at 2 ohms, so you would want the dual 4 ohm sub with the Voice coils wired in parallel, that will present a 2 ohm load to the amp.

As for the crossover question I'm not sure I understand fully. Are you wanting to run the components active or passive? If passive I would personally use the crossover on the amp, but some others would use the headunit crossover.

You will love the RSD Components. very nice midbass, and the tweet isn't harsh at all. I use them and put about 200 watts to them and they love it.

I'm sure more will chime in over the next couple of days. This forum is kinda slow paced, and pretty dead on the weekend, but be patient, there is alot of good information to be had here... :wink:

Posted: Sun Jul 06, 2008 1:33 pm
by deathcloud
yea thats what I am confused about the active and passive thing. What is active? What is passive? If i wire them passive to the amp then does that mean I take out my crossover in the door? Maybe a diagram would help me :) I could draw u a diagram if you wanted because I guess I am a visual person.

Posted: Sun Jul 06, 2008 2:47 pm
by AVICJR
Active- without the provided manufacturer's crossover. You would use either the amp, head unit, or an external electronic crossover.

Passive- with the manufacturer's crossover.

Posted: Sun Jul 06, 2008 7:47 pm
by deathcloud
Oh ok I guess that makes sense. So would active be the best thing or passive. If you did active, where would the tweets be hooked up to? Would I have to sodder the tweets together with the woofer connection or something? I think thats too advanced for me or something. I think that I am just gunna stick with passive and use the crossover that comes with the component set of the Rsds.

Posted: Sun Jul 06, 2008 7:57 pm
by fordtough1
with an active setup you would use a four channel amp for instance and power each speaker with a seperate channel of the amp. By that I mean each tweet and each mid to a seperate channel. Active setups sound great, but can be alot of work to make sound right and can take alot of tuning.

I would go passive for starters if I were you. use the crossovers supplied with the RSd Components. hook them to a 2 channel, or a bridged 4 channel amp. You didn't say whether you had rear speakers in the car or not. You can give those components quite a bit of power without hurting them. If you decide later that you want to try an active setup, you can do that.


Hopefully that made sense, I kinda ramble sometimes.... :lol:

Posted: Sun Jul 06, 2008 8:22 pm
by deathcloud
Yea that totally makes sense. I see exactly what you are talking about. Yes I have rear speakers so thats why i guess i would go passive.

If I were lets say to just use the 4-channel amp and do exactly like you said to bridge it for just the two components in the front I would be producing

278rms x 2 (Specs from Infinity)

That is 278 RMS to the speakers. I am wondering if that is going to be too much and blow my speakers. Shouldn't I just use the 111 rms x 4 because that is only 9 rms from the recommended. Does that make sense?

Posted: Sun Jul 06, 2008 8:34 pm
by fordtough1
Yeah, that makes sense. I wasn't sure how powerful of an amp you were using. 278 would be a bit of overkill to those speakers. :lol:

Posted: Sun Jul 06, 2008 9:38 pm
by deathcloud
SICK! I cant wait! I'm so excited!!! I cant wait that much longer! I also have been reading that I should probably use dynamat to deaden the doors as well to make it a lot better. Right now its just stock with no dynamat so I wanna see how much better it will improve it. But Yea I will let you know how it goes.