Anyone used FORScan for flat signal to DSP?
03-03-2017, 11:28 PM
#41
OK, I know this Forscan thing has been out there a while but for some reason you've just now piqued my interest in it. I'm trying to find stuff to read about it just now so let me see if I've got this figured out. Buying one of these ScanTool OBDLink MX tools, I can use Forscan to turn off the EQ from the ACM? I get the part about turning the stock speaker outputs to low level outputs but we're still back to the hiss issue. What I'm wondering is, according to that thread, you can keep the stock speaker wires as high level and just turn off the EQ, then I could run that to the Fix to boost the signal and send it optically to my Twk processor....right?
If so, I think that might be the best option for me since I already spent the $300 on the Fix. That should theoretically give me a noise free signal to my processor and let me use all the stock volume controls without any variable EQ. If I didn't have the Fix, I think you're right that this is the best option for somebody to go as it only costs the $80 investment on the OBDLink tool which can be used for SO much more down the road. Seems like a no-brainer if it's that easy.
One question, this line from the Fusion forum:
WTF?? OK, I thought all you need was an OBDLink tool and Forscan. Now this post is saying you have to buy some code to enable this option? That makes no sense.
If so, I think that might be the best option for me since I already spent the $300 on the Fix. That should theoretically give me a noise free signal to my processor and let me use all the stock volume controls without any variable EQ. If I didn't have the Fix, I think you're right that this is the best option for somebody to go as it only costs the $80 investment on the OBDLink tool which can be used for SO much more down the road. Seems like a no-brainer if it's that easy.
One question, this line from the Fusion forum:
WTF?? OK, I thought all you need was an OBDLink tool and Forscan. Now this post is saying you have to buy some code to enable this option? That makes no sense.
I dont understand what you mean about the hiss?
You said that high level outputs will get you less hiss than the ACM mod at low level? That is incorrect, low level will net you less hiss because its not being amplified to start with and you are getting a truly clean unclipped signal out of your OEM HU also you are eliminating the FIX which could introduce some more noise, you will only use a DSP that will take the low level signal and then send the signal to your amps. This is the way it should be done with any aftermarket HU and now you can do it with your OEM one with the same results.
For the code, this is it:
ACM
727-01-01 xx5A xxxx xxxx
727-01-02 00xx
If it's a Sony system, this would need to be done in APIM also:
7D0-01-01 2xxx xxxx xxxx - disables Sony sound processor
Its free now.
The following 3 users liked this post by James Cole:
03-04-2017, 12:33 AM
#42
Mass Effect
Yes thats all you need to run Fordscan
I dont understand what you mean about the hiss?
You said that high level outputs will get you less hiss than the ACM mod at low level? That is incorrect, low level will net you less hiss because its not being amplified to start with and you are getting a truly clean unclipped signal out of your OEM HU also you are eliminating the FIX which could introduce some more noise, you will only use a DSP that will take the low level signal and then send the signal to your amps. This is the way it should be done with any aftermarket HU and now you can do it with your OEM one with the same results.
For the code, this is it:
ACM
727-01-01 xx5A xxxx xxxx
727-01-02 00xx
If it's a Sony system, this would need to be done in APIM also:
7D0-01-01 2xxx xxxx xxxx - disables Sony sound processor
Its free now.
I dont understand what you mean about the hiss?
You said that high level outputs will get you less hiss than the ACM mod at low level? That is incorrect, low level will net you less hiss because its not being amplified to start with and you are getting a truly clean unclipped signal out of your OEM HU also you are eliminating the FIX which could introduce some more noise, you will only use a DSP that will take the low level signal and then send the signal to your amps. This is the way it should be done with any aftermarket HU and now you can do it with your OEM one with the same results.
For the code, this is it:
ACM
727-01-01 xx5A xxxx xxxx
727-01-02 00xx
If it's a Sony system, this would need to be done in APIM also:
7D0-01-01 2xxx xxxx xxxx - disables Sony sound processor
Its free now.
The thing I meant about hiss is I guess I'm having a hard time getting my head around the concept that in one configuration you get high level signals coming out of the factory speaker wires but just switch some numbers around and you've not got a low level passive signal coming out of those same wires and I'm worried that it's not a true, passive (unamplified) signal that you're getting out of the factory radio after this mod. I mean, if you're actually getting a true, unamplified signal thru the factory speaker wires with this mod then that's the answer. Yeah you've still got to contend with some volume dependent EQ'ing but from what you're saying, you can't really tell it's there anyway. I guess it makes sense if I think about it since these wires are the same wires that the Sony systems use for their input signal correct? Those would have to be passive signals.
03-27-2017, 02:39 PM
#43
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Yes thats all you need to run Fordscan
I dont understand what you mean about the hiss?
You said that high level outputs will get you less hiss than the ACM mod at low level? That is incorrect, low level will net you less hiss because its not being amplified to start with and you are getting a truly clean unclipped signal out of your OEM HU also you are eliminating the FIX which could introduce some more noise, you will only use a DSP that will take the low level signal and then send the signal to your amps. This is the way it should be done with any aftermarket HU and now you can do it with your OEM one with the same results.
For the code, this is it:
ACM
727-01-01 xx5A xxxx xxxx
727-01-02 00xx
If it's a Sony system, this would need to be done in APIM also:
7D0-01-01 2xxx xxxx xxxx - disables Sony sound processor
Its free now.
I dont understand what you mean about the hiss?
You said that high level outputs will get you less hiss than the ACM mod at low level? That is incorrect, low level will net you less hiss because its not being amplified to start with and you are getting a truly clean unclipped signal out of your OEM HU also you are eliminating the FIX which could introduce some more noise, you will only use a DSP that will take the low level signal and then send the signal to your amps. This is the way it should be done with any aftermarket HU and now you can do it with your OEM one with the same results.
For the code, this is it:
ACM
727-01-01 xx5A xxxx xxxx
727-01-02 00xx
If it's a Sony system, this would need to be done in APIM also:
7D0-01-01 2xxx xxxx xxxx - disables Sony sound processor
Its free now.
03-28-2017, 09:43 AM
#44
Senior Member
Yes. That is what I did. At first I installed the LC7i to convert the High level to low level for the amp and there was a some noise. Took the LC7i out and ran High level directly to the amp, even more noise. Changed the ACM of have the factory output low level and the noise is almost gone. Interesting thing is that my Alpine MRV-V500 auto turns on with the RCA inputs so I didn't have to run a remote turn on.
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Rey L. (12-06-2017)
03-28-2017, 08:56 PM
#45
Senior Member
Yes. That is what I did. At first I installed the LC7i to convert the High level to low level for the amp and there was a some noise. Took the LC7i out and ran High level directly to the amp, even more noise. Changed the ACM of have the factory output low level and the noise is almost gone. Interesting thing is that my Alpine MRV-V500 auto turns on with the RCA inputs so I didn't have to run a remote turn on.
I might have to give this forscan thing a try.
03-29-2017, 10:49 AM
#46
Senior Member
Originally Posted by crankinaway
Are you still running the LC now? I also have the hiss running high level to my JL amp. I tried using a regular cheap high level converter but what I found is that I had to turn my gain up higher and in turn just reverted back to the original hiss.
I might have to give this forscan thing a try.
I might have to give this forscan thing a try.
The following 2 users liked this post by 1NiceHarley:
crankinaway (03-29-2017),
Rey L. (12-06-2017)
04-04-2017, 08:32 AM
#47
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If you changed all the speaker signals to line level, does that mean you're using the stock subwoofer connection to provide signal to your sub? Did you notice the hiss in the door speakers or the sub when you connected to speaker level inputs?
04-04-2017, 10:16 PM
#48
I got the 360.3 and it works great. I used the parrot harness to tap into the factory wiring and then just ran the audio to one amp that has the fronts/rears and then one to the sub. I also used the optical input with a usb dac to a tablet to play things at times. Sounds awesome. You can download the Fosgate app and tune tune each band. It came with a CD with different frequencies/white noise to tune the system with a calibrated mic/software. The place I had install the system (i purchased parts/they installed it (used to do it all my self, figured let the pros do it on a brand new truck) also mounted the 360.3 remote ***** which allows me to turn the bass up/down/switch inputs/etc.
Most people when upgrading a system replace the head unit anyway, since I couldn't really do it with this truck easily, instead I invested in the 360.3... I got it from Sonixelectronics on sale for 25-30% off.. can't remember... it was like a little over 400 bucks...with free shipping..
so far wouldn't have done anything different.. sounds amazing...
Most people when upgrading a system replace the head unit anyway, since I couldn't really do it with this truck easily, instead I invested in the 360.3... I got it from Sonixelectronics on sale for 25-30% off.. can't remember... it was like a little over 400 bucks...with free shipping..
so far wouldn't have done anything different.. sounds amazing...
04-06-2017, 08:34 AM
#49
Senior Member
Originally Posted by ClickityClack
If you changed all the speaker signals to line level, does that mean you're using the stock subwoofer connection to provide signal to your sub? Did you notice the hiss in the door speakers or the sub when you connected to speaker level inputs?
From all the reading I've done, the factory radio eq curve changes with the volume ****. So as you turn up the radio bass and treble roll off. Unless you set the factory eq to flat. So when using a DSP to get a flat signal it will only be flat at that one volume setting (the one used durning setup)
04-06-2017, 11:04 AM
#50
has anyone been able to figure out how to remove the factory eq? i saw the post about changing from hi to low level outputs from the hu (via forscan) but if someone posted about removing the factory eq i must have missed it.