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Discussion Starter · #41 ·
Fyi... I scoped the factory Bose HU and at max volume I had 3.5V and zero distortion.

I also was able to use the pre amp signal wires straight into the Helix. I just spliced RCA's onto the front right/left pre amp wires in the trunk. So if you ever wanted to ditch the JL Fix you can.

My car is a 2013 G37S sedan w/ Bose NAV and 10 speakers. A pillar tweets, center channel, 4" mids and 10" midbass in the doors, two rear door speakers and a 10" sub in the rear deck. I'm pretty confident it is the same exact system in the Q's.

Just passing info along if you want to let your tuner know....
appreciate the input
 

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I agree about the source, after listening to lossless using the optical input on the Helix everything else sounds bad. Using a S9+ phone into a USB to optical converter and it sounds awesome.

Where did you get the material for your mid bass fire rings? You are correct...no one makes an 8" ring
 

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Discussion Starter · #43 ·
I agree about the source, after listening to lossless using the optical input on the Helix everything else sounds bad. Using a S9+ phone into a USB to optical converter and it sounds awesome.

Where did you get the material for your mid bass fire rings? You are correct...no one makes an 8" ring
My installer went Mcguiver mode and used Air condition foam 🙂
 

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Fyi... I scoped the factory Bose HU and at max volume I had 3.5V and zero distortion.

I also was able to use the pre amp signal wires straight into the Helix. I just spliced RCA's onto the front right/left pre amp wires in the trunk. So if you ever wanted to ditch the JL Fix you can.

My car is a 2013 G37S sedan w/ Bose NAV and 10 speakers. A pillar tweets, center channel, 4" mids and 10" midbass in the doors, two rear door speakers and a 10" sub in the rear deck. I'm pretty confident it is the same exact system in the Q's.

Just passing info along if you want to let your tuner know....
Quick question.. If you used the preamp signal out of the HU, what do you use to control volume? Just a Helix volume Knob? Anyone know how to grab a voltage signal from the HU to control volume at the helix (and keep the ability to use the steering and HU volume control)?
 

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The factory head unit will control the volume when using those preamp signal wires. Just splice RCA's into the front left/right before the bose amp. Then run those right into the Helix... you don't need a JL FIX or anything else.
 

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All of my factory informant features and steering wheel controls work the same as factory stock. I do use a URC.3 for digital volume control from a DAP and for sub volume but it isn't necessary. When I scoped the factory head unit it put out 3.5V and no distortion at max volume.
 

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Excellent news! I had read elsewhere those were signal only out, no volume control. And ..this build was awesome, now I am inspired to step up my install (2018 Q50S)
 

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I did a **** ton of research, those Bose Head units are actually made by Clarion, atleast the the one in my G is. Doesn't look very fancy but its working perfect with the Helix DSP.3... SQ is very good. I gutted everything minus the head unit with no issues. Oh and the Helix auto time alignment feature they just released is the real deal, front stage is perfect now
 

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Factory Bluetooth and hands free calling still works also. The bluetooth is lacking in SQ though but I only use if for calling
 

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Discussion Starter · #51 ·
I did a **** ton of research, those Bose Head units are actually made by Clarion, atleast the the one in my G is. Doesn't look very fancy but its working perfect with the Helix DSP.3... SQ is very good. I gutted everything minus the head unit with no issues. Oh and the Helix auto time alignment feature they just released is the real deal, front stage is perfect now
I am curious about this Helix time alignment? I have the Dsp3 ..can I get this feature
 

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Discussion Starter · #53 ·
Ok...I am back again seeking some advice...I still have my system and I am truly enjoying...But I am getting that I want to upgrade something itch 🙂
i am going to get the Helix Hec Usb card you see about upgrading the sound a bit...I may have a buying for my GB 12D2 subwoofer....So the fiberglass enclosure is about .85 cubic feet...And the Zapco amp is pushing about 500 watts Rms to the sub...
I wanted to know if you guys can recommend any sub that would work with what I currently have a maybe sound better and louder without giving up accuracy like my GB 12..I was even considering a IDQ12v.4D2, but gosh it’s not even as efficient as the GB....Any suggestions would be greatly appreciated ....I am trying to get a little more output without adding a second sub....HELP 😩
 

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the AF is a pretty efficient sub. You would probably have to model some stuff up to find another option. I bet it will require more power, larger enclosure, or more subs rather than just swapping out the driver.
 

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Discussion Starter · #55 ·
the AF is a pretty efficient sub. You would probably have to model some stuff up to find another option. I bet it will require more power, larger enclosure, or more subs rather than just swapping out the driver.
My installer said the same thing.
 

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Other option would be to improve the install, you might see a gain by lying down rear seats or opening up the rear deck if speakers are installed there.
 

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Discussion Starter · #57 · (Edited)
Ok after a long hiatus...I decided to redo the sub stage for my system. I went ahead and pulled the trigger and purchased a new Acoustic Elegance SBP15-4 to replace my GB12..So I am jumping into this IB setup blindly...I have heard nothing about positive feedback ..fingers crossed
.I plan to stay with the same Zapco amplification and Helix Dsp. I am planning to add the Helix usb Hec card. i am also redoing the entire trunk area...I am included pics of the design me and my installer drafted....Any feed back design ideas would be greatly appreciated.

281033

My new hope for a little more detailed deep sub bass :)

281034

we plan to raise the floor and drop the new amp rack in the current spare tire well. The Helix Dsp will share the same space with the Zapcos. The Jl Fix will probably end up hidden....My installer suggested installInt a forced air duct to push air across the amps since I wanted amp rack cover to be made from Plexi glass..
The install should start this Sunday.
 

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Ok after a long hiatus...I decided to redo sub stage for my system. I went ahead and pulled the trigger and purchased a new Acoustic Elegance SBP15-4 to replace my GB12..So I am jumping into this IB setup blindly...I have heard nothing about positive feedback ..fingers crossed
.I plan to stay with the same Zapco amplification and Helix Dsp. I am planning to add the Helix usb Hec card. i am also redoing the entire trunk area...I am included pics of the design me and my installer drafted....Any feed back design ideas would be greatly appreciated.

View attachment 281033
My new hope for a little more detailed deep sub bass :)

View attachment 281034
we plan to raise the floor and drop the new amp rack in the current spare tire well. The Helix Dsp will share the same space with the Zapcos. The Jl Fix will probably end up hidden....My installer suggested installInt a forced air duct to push air across the amps since I wanted amp rack cover to be made from Plexi glass..
The install should start this Sunday.
Ok after a long hiatus...I decided to redo sub stage for my system. I went ahead and pulled the trigger and purchased a new Acoustic Elegance SBP15-4 to replace my GB12..So I am jumping into this IB setup blindly...I have heard nothing about positive feedback ..fingers crossed
.I plan to stay with the same Zapco amplification and Helix Dsp. I am planning to add the Helix usb Hec card. i am also redoing the entire trunk area...I am included pics of the design me and my installer drafted....Any feed back design ideas would be greatly appreciated.

View attachment 281033
My new hope for a little more detailed deep sub bass :)

View attachment 281034
we plan to raise the floor and drop the new amp rack in the current spare tire well. The Helix Dsp will share the same space with the Zapcos. The Jl Fix will probably end up
Other option would be to improve the install, you might see a gain by lying down rear seats or opening up the rear deck if speakers are installed there.
....My installer suggested installInt a forced air duct to push air across the amps since I wanted amp rack cover to be made from Plexi glass..
The install should start this Sunday.
 

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Your going to love that sub same one I have in my Q50S. I placed 4th at Meca Finals street class. I need to make a couple changes.
Land vehicle Vehicle Car Tire Automotive tire
Vehicle Car Trunk Wheel Auto part
 

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Discussion Starter · #60 ·
Your going to love that sub same one I have in my Q50S. I placed 4th at Meca Finals street class. I need to make a couple changes. View attachment 281038 View attachment 281039
Dude...Finally someone on this forum with the same car with similar equipment....What did you do for your front stage? Send me pics bro....I went 3 way active with Audiofrogs...I kept the 2.5” on the dash and mounted the Tweet in the A-pillars with a Audio Development 8” midbass in the factory doors...The highs are mind blowing dude...I only wish I could have fabricated to fit the GB25 in the front pillars....
I am curious to see how u set up your system for real...I had a question, are your Zapco amps protected?
 
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