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circuit city reliable?

Printed From: the12volt.com
Forum Name: Car Audio
Forum Discription: Car Stereos, Amplifiers, Crossovers, Processors, Speakers, Subwoofers, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=67544
Printed Date: September 26, 2022 at 1:54 PM


Topic: circuit city reliable?

Posted By: loudwhisper
Subject: circuit city reliable?
Date Posted: December 03, 2005 at 10:38 AM

hey im buying a system for my car which includes :
Clif Designs CD10.1LX (700 RMS x 1 channel @ 1ohm)
two Alpine 12" Type S subs (300 RMS each, 2 ohm each)

first i was wondering if u think there would be any problems with the sound quality...and also there are no car audio shops around where i live...only a circuit city and im worried they might configure the speaker wiring wrong

since it is a mono amp powering two subs...has anyone ever had a system installed there?



Replies:

Posted By: customsuburb
Date Posted: December 03, 2005 at 10:45 AM
In my area the circuit city is a lot better than the best buy store. They actually want to help you at the circuit city and don't just want to sell you stuff. Their install bay is cleaner looking and they do more professional installs I think (they solder the connections instead of crimping at my local circuity city, simple but professional things like that).

You might want to talk to some of the installers and look around the car audio section to make sure that its the same in your area (I've heard good things and bad things about circuit city/best buy but it varies).

The alpine subs should sound ok. I'm not sure about the amp though. If you arn't sure on how to wire your subs, check out the wiring diagrams on crutchfield or Rockford Fosgate's website. Wiring Diagrams




Posted By: loudwhisper
Date Posted: December 03, 2005 at 10:49 AM
im just worried since i have a mono amp which will be running at 1ohm and two subs at 2 ohm...

that they will wire a parrallel circuit or something... but when i looked on here at "woofer wiring" it recommended series and parrellel/series

i dont wanna have my subbs blown because of them

i also doubt they would replace it since i didn't buy it at their store, if they blew them




Posted By: stevdart
Date Posted: December 03, 2005 at 10:50 AM
It's simple.  Stop worrying.  But I'll say this:  if you are going to use the term "sound quality", don't put in a system with that amplifier running at it's max (1 ohm load).  Get a higher output amp and run your subs at 4 ohms.  A compromise would be to switch out the subs for two that will combine to make 2 ohms, and run a more powerful amp at that load.

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Build the box so that it performs well in the worst case scenario and, in return, it will reward you at all times.




Posted By: loudwhisper
Date Posted: December 03, 2005 at 10:52 AM
its better to run the amp at a higher ohm then the subs are ...right?




Posted By: customsuburb
Date Posted: December 03, 2005 at 10:54 AM
Wiring your subs for a higher ohm load than your amps minimum ohm load is easier on the amp, but your subs get less power.




Posted By: loudwhisper
Date Posted: December 03, 2005 at 10:56 AM
well anyone have any suggestion to a good amp that will power the two subs i posted up there ^^...




Posted By: stevdart
Date Posted: December 03, 2005 at 11:03 AM

https://www.cardomain.com/item/PHOX4001

A good buy on a Phoenix Gold Xenon.  The 400 watts from this amp would most likely be more power than the 700 watts from the Clif Designs amp.  Make sense?  It shouldn't, but it'll do the job...and then you won't have to worry about sound quality. 

You have a proper enclosure built for those subs?



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Build the box so that it performs well in the worst case scenario and, in return, it will reward you at all times.




Posted By: loudwhisper
Date Posted: December 03, 2005 at 11:16 AM
sealed enclosure that im just getting off another website




Posted By: loudwhisper
Date Posted: December 03, 2005 at 11:22 AM
also how would a 2 channel amp be?

i found a 2 channel amp that runs at
310 watt x 2 channels @ 4 ohm

does that mean each sub gets 310 watt @ 4 ohm?

and wouldn't it be easier if i were to get a two channel amp and run each sub to their own positive and negative terminal




Posted By: DYohn
Date Posted: December 03, 2005 at 11:34 AM

loudwhisper wrote:

and wouldn't it be easier if i were to get a two channel amp and run each sub to their own positive and negative terminal

No, it's actually better and easier to connect your subwoofers together properly and use a mono amp.

Back to your initial question about CC being "reliable," the answer to that depends entirely on the people working there.  But in general, if you have a store install something and they do it wrong and it breaks, assuming you never messed with it they will honor the warranty.

I agree with the above comments about Cliff Designs, though.  A generally poor quality amplifier with highly inflated ratings that will not like operating at 1ohm very much, or for very long, without generating a large amount of distortion.

And one other thing: amps produce power.  Speakers create the "ohm" load.  Amps will produce power into the load no matter what it is, until they fry.  All you need remember when starting out is to never connect a speaker wiring configuration to an amplifier that will cause it to produce power into a lower ohm load than it can handle.  I suggest you review Ohms Law.



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Posted By: loudwhisper
Date Posted: December 03, 2005 at 11:38 AM
i tried reading ohm's law but it kind of confused me




Posted By: stevdart
Date Posted: December 03, 2005 at 11:38 AM

Wire the subwoofers together like the diagrams illustrate.  Connect that load to a mono amp.  Use a good quality amp like I posted above.  Using a two-channel amp for subs is a waste of power.  Waste is heat that is generated by the amp, where it takes a certain amount of power from your vehicle and outputs only half of it.  But for the speakers that you will eventually be putting into the front of the car, a two-channel amp is what you want.

Any more posts, list the model number of your subs and the air volume (post a link) of the box that will be used.



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Build the box so that it performs well in the worst case scenario and, in return, it will reward you at all times.




Posted By: loudwhisper
Date Posted: December 03, 2005 at 11:43 AM
well see i want these subs https://www.sonicelectrnix.com/item_2433.html because they seem like they would produce the sound im looking for and they dont look hidious...they are plain and simple

and this is the enclosure i was looking at https://www.sonicelectrnix.com/item_1583.html




Posted By: loudwhisper
Date Posted: December 03, 2005 at 11:50 AM
also...sorry for double post but the amp u posted above puts out 400 watt RMS and the subs combined are 600 RMS

i wanna make sure they get enough power with a high ohm




Posted By: stevdart
Date Posted: December 03, 2005 at 11:53 AM

For the $75 you'll spend on the box including getting it shipped, you should go over to the CC and talk to them about what they have.  It's better to see something in real life, although the box looks like it's okay (although it would cost me more to make a box than $40).

The subs are dual 2 ohm, which means your original post is wrong because you said each sub was 2 ohms.  And, shopping for speakers based on what they look like is crazy.  Go over to the CC and check some things out, now that we know you haven't ordered these things online yet.  Things can get out of hand very quickly when you are ordering online without enough knowledge to make good decisions.  Good luck.



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Build the box so that it performs well in the worst case scenario and, in return, it will reward you at all times.




Posted By: loudwhisper
Date Posted: December 03, 2005 at 12:00 PM
i wasn't shopping for looks im just saying i like how they are plain...honestly idc if they are ugly as long as they sound good and are decently loud

if they are dual voice coil and 2 ohm...does that mean each coil is 1 ohm?

also i found an amp at 600 RMS @ 4 ohm ..its the Phoenix Gold Xenon




Posted By: DYohn
Date Posted: December 03, 2005 at 12:16 PM
DVC @ 2 ohms = 2 ohm impedance per voice coil.  That means the ONLY wiring configurations you can create with two of those are a total of 2 ohms, 0.5 ohms, or 8 ohms.  PG makes decent amps.  For two Alpine Type S woofers in a sealed enclosure I suggest any decent mono amplifier rated between 200 and 600 watts RMS into a 2-ohm load.  Go shopping and get help, do not buy on-line, especially since it appears you are a beginner and not sure of what you're doing.  That was not a slam, just an observation.  Cheers.

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Posted By: loudwhisper
Date Posted: December 03, 2005 at 12:37 PM
alright thanks alot

the PG was the 600.1 model

its 600 RMS x1 @ 4 ohm
600 RMS x1 @ 2 ohm
600 RMS x1 @ 1ohm

would it be good to go with that and just have it on 2 ohm?

thats the last question ill ask about it :)




Posted By: forbidden
Date Posted: December 03, 2005 at 3:27 PM

Yes!

Here is how to wire your speakers.Wiring Option #2
posted_image



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Top Secret, I can tell you but then my wife will kill me.





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