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View Full Version : Fedex Delivers early birthday present



ebrunn
12-11-2007, 05:00 PM
Got my new Rainbow CMX 265 Kick's today from Don today. Just need to wait till when its not 5 degrees outside to install them. Lucky for me and my hands, my friend has a insulated garage. Also gotta wait on my 880PRS and my RAAMmat and Ensolite to come as well.

http://img410.imageshack.us/img410/666/img4275yu4.jpg

http://img155.imageshack.us/img155/3350/img4277cy2.jpg

http://img152.imageshack.us/img152/517/img4278ji1.jpg

http://img266.imageshack.us/img266/2038/img4279gd3.jpg

http://img509.imageshack.us/img509/4131/img4280jv9.jpg

http://img132.imageshack.us/img132/9661/img4281im7.jpg

http://img510.imageshack.us/img510/8729/img4283wg1.jpg

Got my MDF rings all ready to go

http://img227.imageshack.us/img227/7852/img4293na7.jpg

http://img510.imageshack.us/img510/5677/img4291ja1.jpg

http://img178.imageshack.us/img178/8517/img4290to8.jpg

brtnboarder3241
12-11-2007, 05:01 PM
vn..

redcalimp5
12-11-2007, 05:43 PM
Congrats, man! I've got a set of CMX Kicks, also, and I love 'em.

How thick are your MDF rings? 1/2"?

bumpin buick
12-11-2007, 05:44 PM
happy bday i guess

ebrunn
12-11-2007, 05:47 PM
Congrats, man! I've got a set of CMX Kicks, also, and I love 'em.

How thick are your MDF rings? 1/2"?

3/4"

RAM_Designs
12-11-2007, 05:50 PM
You should flush mount those mids...and 2nd order crossovers FTL :(

redcalimp5
12-11-2007, 06:02 PM
You should flush mount those mids...and 2nd order crossovers FTL :(

Why would you say he should flush mount the mids? I've got my CMX Kick mids flush mounted right now, but I was considering mounting them onto MDF spacers, myself.

Is there a reason in particular to flush mount over using the MDF rings?

ebrunn
12-11-2007, 06:03 PM
You should flush mount those mids...and 2nd order crossovers FTL :(

Flush mount them to where? The door panel? And Im going to be running these active so I wont have a passive crossover. I am getting a Pioneer 880PRS to control all that.

redcalimp5
12-11-2007, 06:07 PM
Flush mount them to where? The door panel? And Im going to be running these active so I wont have a passive crossover. I am getting a Pioneer 880PRS to control all that.

Yeah, my passive xovers for this set are still sitting in the original box, too. I'm running mine active with an Alpine 7998. I've ran these passive before, and they sound MUCH better and more powerful when run active.

ebrunn
12-11-2007, 06:10 PM
Yeah, my passive xovers for this set are still sitting in the original box, too. I'm running mine active with an Alpine 7998. I've ran these passive before, and they sound MUCH better and more powerful when run active.

You have a 4-channel amp to run them or (2) 2-Channels? I already got a JL 300/2 and am currently looking for another 2-channel for the tweets or just buy a nice 4-Channel.

RAM_Designs
12-11-2007, 06:13 PM
Why would you say he should flush mount the mids? I've got my CMX Kick mids flush mounted right now, but I was considering mounting them onto MDF spacers, myself.

Is there a reason in particular to flush mount over using the MDF rings?
Flush mount it with the MDF ring...I did it with my Dayton RS180's and it looks really good(even though you normally can't see it). Plus you're using 3/4 MDF, so cutting it down to 5/8 or so isn't going to hurt it's structural integrity.

Flush mount them to where? The door panel? And Im going to be running these active so I wont have a passive crossover. I am getting a Pioneer 880PRS to control all that.
See above for flush mount answer.

Don't get the 880, RCA noise will kill you...

redcalimp5
12-11-2007, 06:17 PM
You have a 4-channel amp to run them or (2) 2-Channels? I already got a JL 300/2 and am currently looking for another 2-channel for the tweets or just buy a nice 4-Channel.

I've got an older Alpine 5 channel that's powering everything. I've got a 12" sub in a sealed box being powered on the 5th channel.

Here's my amp:

http://ampguts.realmofexcursion.com/Alpine_MRD-F752/

ebrunn
12-11-2007, 06:29 PM
Don't get the 880, RCA noise will kill you...

Just dont blow the PICO fuse and you will be fine

redcalimp5
12-11-2007, 06:43 PM
Excuse my ignorance, but the mids being held up with the MDF rings as pictured wouldn't be considered flush mounting?

RAM_Designs
12-11-2007, 07:15 PM
Just dont blow the PICO fuse and you will be fine
I already had an 800, didn't blow the fuse, and it was a pain sometimes...definitely like my 8053 more than the 880...there's really no comparison in SQ.

Excuse my ignorance, but the mids being held up with the MDF rings as pictured wouldn't be considered flush mounting?

Flush mounting consists of making the flange of the basket(part with the mounting holes), flush with the mounting surface. Using a router, flsuh mounting with MDF is a breeze.

Etac
12-11-2007, 10:58 PM
im using these passive right now but i was debating about going active.. the only problem i have is my amp is either 4 x 104 @ 4 ohms and 280ish bridged... i figured the 280ish would probaly sound louder/better than the 104 to each...

exige
12-12-2007, 02:51 AM
the baskets arent even cast????

AJē06
12-12-2007, 03:46 AM
Niiice! where u get the MDF rings? Im looking for some. my woodwork ***** bad. hahaa

PM me because I will most likely not find this thread again, thanks!

Appreciate it :)

iagrdshaka
12-12-2007, 03:53 AM
Niiice! where u get the MDF rings? Im looking for some. my woodwork ***** bad. hahaa

PM me because I will most likely not find this thread again, thanks!

Appreciate it :)

http://www.able-audio.com/shop/index.php?cPath=21&osCsid=23fc22dab9f299650a4b315de207402d

Or you can make your own for a lot cheaper.

audiobahnuser18
12-12-2007, 03:56 AM
very nice man :). did you make the mdf rings or buy them?

ebrunn
12-12-2007, 06:16 AM
very nice man :). did you make the mdf rings or buy them?


Niiice! where u get the MDF rings? Im looking for some. my woodwork ***** bad. hahaa

PM me because I will most likely not find this thread again, thanks!

Appreciate it :)

I got them from http://www.able-audio.com/.

I could prolly make them myself but A)its like 7 degrees outside, and B) didnt want to get MDF dust all over my basement:(. So I paid the $7 a ring or whatever to have two perfect ones made and shipped to my doorstep.

redcalimp5
12-12-2007, 11:45 AM
the baskets arent even cast????

What does that matter??

redcalimp5
12-12-2007, 11:47 AM
im using these passive right now but i was debating about going active.. the only problem i have is my amp is either 4 x 104 @ 4 ohms and 280ish bridged... i figured the 280ish would probaly sound louder/better than the 104 to each...

I'm running mine 2-way active 110X4, and it sounds great. You should be fine with 104x4 in your active setup.

Etac
12-12-2007, 12:05 PM
yea but wouldnt the 200-250ish (matters song) i put to them be able to move the speaker a lot easier... i know the passive crossovers rob some power... but i dont think its 150 watts...

- i do plan on running active one day and use this one amp for the mids and get another for the tweets. but i need new subs first... lol and probaly gonna need some electrical upgrades

redcalimp5
12-12-2007, 12:20 PM
yea but wouldnt the 200-250ish (matters song) i put to them be able to move the speaker a lot easier... i know the passive crossovers rob some power... but i dont think its 150 watts...

- i do plan on running active one day and use this one amp for the mids and get another for the tweets. but i need new subs first... lol and probaly gonna need some electrical upgrades

I think 200-250w might be a little much direct power for our CMX Kick mids. I made a post a while ago about these speakers being run active, and Aaron @ PremierAudio suggested that the CMX Kick mids were safe to give from 100-140w rms power in an active setup. I'd PM him to verify this before you go ahead, just to be sure.

The CAL25 titan tweets are spec rated for 100w power handling, but I don't give mine more than 50-60w rms a piece, max. IMO, that's perfect power for them when running active. Anymore powe than that, and you might risk damaging the tweeter motor.

Etac
12-12-2007, 12:51 PM
well i got em running at around 200 passive and they seem to be fine.. i thought i smelt the coil once when i first got em but i think it was possible glue cause i've ran them harder and longer since then and never smelt a thing... and they dont seem to be struggling taking the power... but the crossovers sure do love to light up =)

but yea if i did run them active iw ouldnt give them all that power

also i set em at 200 with a 0db test tone - music will almost never hit that.. i never add bass (to my speakers) with the EQ... and never cross them lower than 80.. sometimes i play the music a little louder.. but as i said thats song dependant - on something that pounds.. i wont cause i dont wanna hurt these things and i never clip a signal

redcalimp5
12-12-2007, 01:20 PM
well i got em running at around 200 passive and they seem to be fine.. i thought i smelt the coil once when i first got em but i think it was possible glue cause i've ran them harder and longer since then and never smelt a thing... and they dont seem to be struggling taking the power... but the crossovers sure do love to light up =)

but yea if i did run them active iw ouldnt give them all that power

also i set em at 200 with a 0db test tone - music will almost never hit that.. i never add bass (to my speakers) with the EQ... and never cross them lower than 80.. sometimes i play the music a little louder.. but as i said thats song dependant - on something that pounds.. i wont cause i dont wanna hurt these things and i never clip a signal


Yeah, I've ran my CMX's passive before with about 220w bridged rms a side, and they sounded killer...but I've gotta say, man, after giving each mid and tweet 100w rms in my current active setup, I'm gonna have to find a good use for the passive crossovers down the road.:) Going active seemed like a daunting task at first, 'cause I've only REALLY been into CA over the last 2-3 years...but after doing a lot of reading up and asking questions, I'll probably never run passive again. Active makes THAT much of a difference....and I actually like being able to tweak my crossover settings and experiment from time to time.

DejaWiz
12-12-2007, 01:23 PM
Active makes THAT much of a difference....and I actually like being able to tweak my crossover settings and experiment from time to time.

Werd. :cool:

redcalimp5
12-12-2007, 01:26 PM
Werd. :cool:

Yeah man, it's way cool to be able to adjust on the fly, and fine-tune the best sound you're looking for. Wiz, along with a lot of other chaps on the boards have helped me to ease into the 'active' transition. :fro:

Etac
12-12-2007, 01:38 PM
ive never done it but i understand the concept and really dont think i would have any problems with it... but do you really think it would be worth going active with almost half the power?

redcalimp5
12-12-2007, 01:46 PM
ive never done it but i understand the concept and really dont think i would have any problems with it... but do you really think it would be worth going active with almost half the power?

Yeah, I do think it'd be worth it. Passive crossovers tend to drench out 'actual' power going to your mids and tweets....so even if you're giving them 250w a side passive, I don't think they're getting the full power load. Someone who knows

Etac
12-12-2007, 01:47 PM
yea i heard that too - someone told me approx 15% but then i was told that was wrong and more like 5% /shrug

redcalimp5
12-12-2007, 01:48 PM
Yeah, it'd be nice if someone on the boards that know more about that specifically could chime in on this thread about it.

DejaWiz
12-12-2007, 01:49 PM
Yeah, I do think it'd be worth it. Passive crossovers tend to drench out 'actual' power going to your mids and tweets....so even if you're giving them 250w a side passive, I don't think they're getting the full power load. Someone who knows

QFT.

The crossover will turn electrical energy into heat since they themselves are electrical components, thus the amount of power the speakers are really getting will be less than what is supplied from the amp. The crossovers can furthermore lower the power even more if there are protection circuits in place.

redcalimp5
12-12-2007, 01:51 PM
QFT.

The crossover will turn electrical energy into heat since they themselves are electrical components, thus the amount of power the speakers are really getting will be less than what is supplied from the amp. The crossovers can furthermore lower the power even more if there are protection circuits in place.

That clarifies a little better. Thanks meng!

Etac
12-12-2007, 01:58 PM
makes sense but assume there is no protection circuit.. how much do you think is actually lost to heat on a quality crossover?

redcalimp5
12-12-2007, 02:05 PM
Found this that relates to what we're talking about.....

"One common myth pertaining to passive crossovers is that they "soak up" the power that is not used for each particular driver. While there is some insertion loss, the filtering action actually takes place due to the impedance mismatch created by the network. For example, if we place a capacitor in series with a 4 ohm tweeter, we have created a first order (6 dB/octave) high pass filter. As frequency goes down, the capacitive reactance of the capacitor goes up. At the crossover point, the impedance presented by the capacitor will be equal to the impedance of the tweeter. Since the capacitor is in series with the tweeter, the effective load impedance "seen" by the amplifier is 4 + 4 or 8 ohms. This rise in load impedance causes a 3 dB reduction in output power at the amplifier. As the frequency continues to go down, the effective impedance of the network continues to rise and the output of the amplifier continues to be reduced at a rate determined by the slope of the crossover. In our example, the rolloff rate would occur at 6 dB/octave because it is a first order network."

http://www.termpro.com/articles/xover.html

DejaWiz
12-12-2007, 02:11 PM
makes sense but assume there is no protection circuit.. how much do you think is actually lost to heat on a quality crossover?

Another thing: A passive crossover will always add impedance that will effect the amp. Running active takes that away.

Here's a good read (http://sound.westhost.com/biamp-vs-passive.htm). And here's another one (http://www.termpro.com/articles/xover.html).

jmanpc
12-12-2007, 02:13 PM
Rainbow FTL.

<--Resident rainbow hater.

redcalimp5
12-12-2007, 02:16 PM
Rainbow FTL.

<--Resident rainbow hater.

Thanks for the valuable input on the topic at hand. :rolleyes:

Etac
12-12-2007, 03:30 PM
Rainbow FTL.

<--Resident rainbow hater.

lol this comes from someone running lightning audio.. and mb... with over 10k post

obviously you have no taste =)