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high level speaker to rca

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=100747
Printed Date: April 27, 2024 at 9:10 AM


Topic: high level speaker to rca

Posted By: steveskal
Subject: high level speaker to rca
Date Posted: January 04, 2008 at 1:58 PM

I'm running the speaker level inputs into my JL Audio 1000/1 amp and had to splice in an RCA connector to feed my amp, and for the those that have done this there is maybe 3 strands of the thinnest wire you've ever seen for the positive in an RCA wire, I'm sure this is creating signal loss and resistance, is there any other kinds of RCA connectors that you can connect larger speaker wire to???



Replies:

Posted By: DYohn
Date Posted: January 04, 2008 at 4:22 PM
DO NOT connect speaker level leads to the line-level RCA inputs.  You may blow your amp.  You need to use a line-output converter.

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Posted By: steveskal
Date Posted: January 04, 2008 at 4:36 PM
Thank you for your concern, however the JL Audio amp is BUILT to accept both high and low level inputs.




Posted By: big sexy lac
Date Posted: January 04, 2008 at 4:36 PM
Any local shop has them their very inexpensive,cheaper than replacing your amp.

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Posted By: steveskal
Date Posted: January 04, 2008 at 5:38 PM
Has what???  I do not need a line out converter, I currently have my amp pounding away using the speaker inputs that go to the factory subwoofer but like I mentioned I would like to use some thicker wire to connect to the RCA's that I spliced to go into the amp.




Posted By: jeffchilcott
Date Posted: January 04, 2008 at 7:12 PM
right from your amps manual


To use speaker-level sources, splice the speaker output wires of the source unit or small amplifier onto a pair of RCA cables or plugs or use the JL Audio ECS Speaker Wire to RCA adaptor (XB-CLRAIC2-SW).

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Posted By: sedate
Date Posted: January 05, 2008 at 3:02 PM

steveskal wrote:

I'm sure this is creating signal loss and resistance

And you are sure how?

What does this guy want he hasn't already been told?

steveskal wrote:

I do not need a line out converter, I currently have my amp pounding away using the speaker inputs that go to the factory subwoofer but like I mentioned I would like to use some thicker wire to connect to the RCA's

If it is pouding away, then what is the problem? 

WHY are you willing to spend the $750 on the JL 1000/1 but can't cough up a LOC?



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Posted By: speakermakers
Date Posted: January 05, 2008 at 6:42 PM
Small gauge wire is used in good quality RCA’s because it acts less as an antenna for noise. Resistance is not a problem because there is only the smallest amount of current present due to the relatively high input impedance of the amplifier. An LOC will only degrade your signal. If an amplifiers out put is not clipping its in put is not clipping. I wouldn’t worry about damaging your amplifier due to this. As long as you are not attempting to run to low of an impedance at the out put of an amplifier a clipped signal will do it no harm. And yes your amp is capable of a very high voltage input when compared to many other amps on the market. Audiocontrol has an article posted on their site that discusses how this works with their products which indecently use the same type of input arrangement. Balanced/single ended RCA type arrangement.




Posted By: steveskal
Date Posted: January 09, 2008 at 1:01 PM
sedate wrote:

steveskal wrote:

I'm sure this is creating signal loss and resistance

And you are sure how?

What does this guy want he hasn't already been told?

steveskal wrote:

I do not need a line out converter, I currently have my amp pounding away using the speaker inputs that go to the factory subwoofer but like I mentioned I would like to use some thicker wire to connect to the RCA's

If it is pouding away, then what is the problem? 

WHY are you willing to spend the $750 on the JL 1000/1 but can't cough up a LOC?


Is this guy for real??

OK, why would I spend money for an LOC if I don't NEED one?? Jeff in the post before you showed me what I needed and I purchased that, its just what I was looking for RCA's with a thicker wire.

As for how I KNOW I'm getting resistance here, OK maybe I don't KNOW, but if I am going from a 12 guage wire to a couple strands of RCA wire I'd assume there is some signal loss and or resistance and since I'm willing to spend $750 on an amp as yur put it, I am willing to spend the money for the best quality, which means not using stripped thinn RCA's.





Posted By: greenbroncoguy
Date Posted: January 09, 2008 at 1:48 PM
steveskal wrote:

sedate wrote:

steveskal wrote:

I'm sure this is creating signal loss and resistance

And you are sure how?

What does this guy want he hasn't already been told?

steveskal wrote:

I do not need a line out converter, I currently have my amp pounding away using the speaker inputs that go to the factory subwoofer but like I mentioned I would like to use some thicker wire to connect to the RCA's

If it is pouding away, then what is the problem? 

WHY are you willing to spend the $750 on the JL 1000/1 but can't cough up a LOC?


Is this guy for real??

OK, why would I spend money for an LOC if I don't NEED one?? Jeff in the post before you showed me what I needed and I purchased that, its just what I was looking for RCA's with a thicker wire.

As for how I KNOW I'm getting resistance here, OK maybe I don't KNOW, but if I am going from a 12 guage wire to a couple strands of RCA wire I'd assume there is some signal loss and or resistance and since I'm willing to spend $750 on an amp as yur put it, I am willing to spend the money for the best quality, which means not using stripped thinn RCA's.


So, basically, all you are wanting to do is have larger guage RCA's? There really is no need for this, as there is only a VERY small amount of signal being transmitted over an RCA cable. Noise suppression should be more of a concern to you than signal degredation. HOWEVER, if you are set on doing this, you can look here for info on making your own set of RCA's out of some better stuff. I have no idea why the topic of LOC's was brought up...

Hope this helps.

-Matt

-Matt





Posted By: n2audio
Date Posted: January 09, 2008 at 2:26 PM

Hey steve - I say don't sweat it.

Yes the microscopic cross section of the RCA wire might be dropping your voltage a bit, but it's not otherwise altering the signal any more than the relatively large speaker wire is.

If the source is, say 15w rms into 4 ohms, that's nearly 8v, even if it's dropping a 1/2 volt (which it's not) you still have all kinds of signal strength to the JL inputs.





Posted By: DYohn
Date Posted: January 09, 2008 at 2:30 PM

Why in the world would you want to connect 12 gauge speaker wire to an RCA?

I was unaware that this particular amplifier used the same input for either high or low level.  But if you are using a high-level input from a head unit, there is no need what so ever to use 12-gauge speaker wire as part of your interconnect.  18 AWG is the absolute largest I would use, and I'd also order the JL Audio interface kit as recommended above.

Or do it "right" and use an LOC rather than depending on the internal LOC.  But hey, if you don't want another component, at least order the proper plugs.



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