that's what i'm talkin' about!!!!!
amazing detail and setup....if possible could you please give me an idea of how much you paid for this sytem/upgrade? if you could break it up into parts/labor or one lump sump- it would be tremendously appreciated...
in addition to getting some new wheels this winter/spring, i wanna do an extensive audio system upgrade to my 2009 MDX!!!!! simply amazing!!!!!
Nice work. It's great that the installer documented with pictures all the work they did. It looks like a lot of labor, and $$$$$, went into the install. I just have one question. Does the speaker bump in the A pillar block visibility much? Were any accommodations made to get air circulation to the amps? Thanks for sharing.
Hey just found this, thanks Chris for posting the link
to answer some questions:
1. yeah unfortunately i am not set up to do any kind of pre-fab enclosures..i work by myself one car at a time and is always going from car to car, plus with this, i would literally need the car with the stock subbox to accomplish the same thing again.
2. when i sat in the car, the only real thing the pillar pods blocked was a portion out the window of the hood, so it shouldnt limit visibility by any real amount.
3. the zapco DC reference are actively cooled and doesnt depend much on the top layer of the heatsink. they have an internal fan that push/pull air from the sides of the amp, and as you can see,the sides of the amp rack is open and can circulate air from the space on either side below the main floor pan. for this install, i also had Zapco customize the amps to fit an additional fan in each to aid in air circulation
I emailed Bing to see if I wanted to take on a similar setup without the custom molded a-pillars and sub. This might help someone in the future if they have questions so I'll post our email conversation.
1. i used speaker level outputs from the stock amp output, the stock main amp also outputs a line level signal to the sub amp, whether or not this is balanced i am not sure, but most acura signals even when balanced, are at such a low voltage it hardly matters. the cl441 can accept either input as is...the problem isnt there, the problem is that hte cl441 cant read a non-full range signal, as it is the case on the sub channel. so i basically plugged in the front channel inputs into BOTH sets of inputs on the 441, let it equalize, and switched the rear back on the side. this was suggsted to me by JL...i can compensate for voltage difference with the line drivers i have in the system, whcih is on the sub channel and specifically used to up the voltage before it reaches the amps...as the sub woofer channel will be much lower in voltage. in the end, as i measured it, it seems the voltage the amp saw was pretty similar for front channel and sub.
btw, i did this mainly because i wanted to retain stock subwoofer volume control on the OEM headunit, and that the zapco dc reference amps dont have a built in bass knob. if you dont care about this, you can tap direct balanced line level before the headunit, you will loose volume function on the stock deck, but you can use a MVC or 441 type of device to give you master volume.
2. 14 gauge was run into both doors. on that mdx, the driver side door has a molex plug. which when you disconnect it is divided into an upper and a loewer half, in other words, two male prongs plug into a big female prong..all the oem wires ran through the upper one, so the lower one is completely empty, so you drill that plug, on both sides, and pass the wires through. thats standard procedure when dealing with molex. on the passenger side, much to my surprise, there was no molex plug, just a normal rubber boot (as you see in most cars) to fish a wire through.
hope this helps.
Sent: Thu, February 24, 2011 9:24:56 PM
Subject: MDX question
I PM'd Chris regarding your MDX build and he suggested I ask you them.
1. You used line level from the main amp for the subwoofer input signal. From those pictures, it looks like the sub connector is not your standard rca jacks. So how did you connect your amps with the CL441DSP using the main acura amp and line level out? I can't figure out how you used the clean sweep with 1 balanced input source and 1 unbalanced input source to feed the amps.
2. For your front door speakers, did you use the OEM wiring for the speaker wire? And if not, how did you run it through the door? Can you expand on "the driver side door featured a Molex plug connection with a totally empty plug for me to drill and pass wires thru, while the passenger side was a simple plug in rubber boot"?