Mark Levinson SUB replacement DIY

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Dec 16, 2015 | 12:12 AM

#121

markjustus

Driver

Joined: Nov 2013

Posts: 125

Likes: 3

From: California

Quote:

Originally Posted by Mach Tuck

I forgot I posted on the thread.

So here's actually a pretty killer update. Turns out the Bluetooth receiving device I was using to stream my audio was using an old codec for turning down the bitrate of the audio. The extremely low bitrate caused the subwoofer to distort at nearly any volume, and also the audio quality just sounded overall awful.

So I got a Miccus aptX Bluetooth device. The aptX apparently is nearly unreduced streaming. It is basically only one step away from raw data streaming. The sound clarity is unbelievable. No subwoofer distortion whatsoever.

Maybe double check the audio feed source before you go ripping out your sub. Make sure if you are Bluetooth streaming that it has aptX capabilities, as well as the sending device.

I absolutely do not have a blown subwoofer but the sounds produced prior to the newer Bluetooth device sure made me think it was right until I switched to a CD from a band (and not reduced bitrate like a lot of MP3 cds).

I have the Miccus charging from the cigarette lighter in the center console which triggers it to pair when you turn the key on. The Miccus then has an audio out 3.5mm that I send to a ground loop isolator that then plugs into the 3.5mm input.

The sound quality is very good considering its a 3.5mm.

I wish I had bluetooth audio, I drive an 06 and I connect via aux cord. My phone has this glitch with the headphone jack where it registers on the phone and cuts in and out randomly and when it comes back, it crackles ridiculously loud. it did that once and now no sub

Dec 16, 2015 | 05:07 AM

#122

Mach Tuck

Rookie

Joined: May 2010

Posts: 54

Likes: 0

From: FL

Quote:

Originally Posted by markjustus

Yeah my car obviously doesn't have factory Bluetooth either. I am also using the aux in but with a Bluetooth streaming device called a Miccus aptX device.

In your case I'd look into cleaning the 3.5mm plug for the aux in. There's probably corrosion on the terminals. So get a brillow pad and clean the connections. Go to Amazon. I'm sure they have a female 3.5mm connector cleaner to scrub the inside of the jack. Then again you may need to replace the jack itself. It may have shorted.

Dec 16, 2015 | 09:09 AM

#123

markjustus

Driver

Joined: Nov 2013

Posts: 125

Likes: 3

From: California

Quote:

Originally Posted by Mach Tuck

ahhhh i see, I wasnt sure about that first part, but thats good to know for when after I get this fixed, because I need this bass back

Dec 16, 2015 | 09:19 AM

#124

markjustus

Driver

Joined: Nov 2013

Posts: 125

Likes: 3

From: California

Anyone find any other subs that may work better than the OP subwoofer?
I am very basic with car audio, but I found this, anyone know exactly what this is?

http://www.simplyspeakers.com/replac...er-w-1130.html

Dec 16, 2015 | 10:07 AM

#125

markjustus

Driver

Joined: Nov 2013

Posts: 125

Likes: 3

From: California

hate to spam the thread, but does anyone have an input on this sub?

http://www.amazon.com/Polk-Audio-db840DVC-8-Inch-Subwoofer/dp/B0016GV1UU/ref=cm_cr_pr_product_top?ie=UTF8

apparently it fits, and is rated at 8 ohms
180 watts cont.
360 watt peak

May 5, 2019 | 08:44 AM

#126

Richardjii

Driver School Candidate

Joined: May 2018

Posts: 23

Likes: 3

From: CA

I went aftermarket with a 10 inch Jl w7 in a sealed box sounds. Amazing professionally installed my factory sub was also working but it just started to rattle and sound nasty. Anyone know how I can simply cut power to the factory mL sub.