Did I pick the right parts? - adding a sub to a factory system

[silverh20]

I have a 2011 BMW 550i that has an upgraded "surround sound" stereo option from the factory. Everything is decent except the bass.

I bought a Kicker L7 12" 4ohm DVC sub and plan to wire it up to my Alphasonik PMA600HC dual channel amp in bridge mode for 950watt RMS @ 4ohm.

I read an install guide for my car and someone needed a Line Output Converter for their 2 subs. I'm using just one and this is the amp config I plan on using.

Is this right then to get this LOC? https://www.amazon.com/dp/B08GH74SQT/?tag=caraudiocom-20

Click to read more...

 

[1aespinoza 10+ year member]

I plan on using.

You are on target with that LC2iPRO. I too am in search of an loc for a future build. Problem is I have never used a complicated one. So I am looking for one that does all calibration for you, but shoot are they pricey. This one looks easy and quite affordable. Thanks for pointing it out.

 

[Louisiana_CRX 5,000+ posts]

I have a 2011 BMW 550i that has an upgraded "surround sound" stereo option from the factory. Everything is decent except the bass.

I bought a Kicker L7 12" 4ohm DVC sub and plan to wire it up to my Alphasonik PMA600HC dual channel amp in bridge mode for 950watt RMS @ 4ohm.

I read an install guide for my car and someone needed a Line Output Converter for their 2 subs. I'm using just one and this is the amp config I plan on using.

Is this right then to get this LOC? https://www.amazon.com/dp/B08GH74SQT/?tag=caraudiocom-20

Thats a quality piece it should work fine

 

[marc2112 10+ year member]

I have a 2011 BMW 550i that has an upgraded "surround sound" stereo option from the factory. Everything is decent except the bass.

I bought a Kicker L7 12" 4ohm DVC sub and plan to wire it up to my Alphasonik PMA600HC dual channel amp in bridge mode for 950watt RMS @ 4ohm.

I read an install guide for my car and someone needed a Line Output Converter for their 2 subs. I'm using just one and this is the amp config I plan on using.

Is this right then to get this LOC? https://www.amazon.com/dp/B08GH74SQT/?tag=caraudiocom-20

This is not going to be possible. You'd need a 2 ohm dvc to get 4 ohm at the amp.

Also make sure you connect the LOC to a full range signal. Some factory systems have a safety attenuation bs feature that decrease the bass at high volume.

 

[1aespinoza 10+ year member]

This is not going to be possible. You'd need a 2 ohm dvc to get 4 ohm at the amp.

He could also run it bridged at 2ohms with the gain down. Supposedly the amp can run 1ohm bridged, meaning it can run 1/2ohm stereo. It may be a typo, but it should safely do 2ohms bridged.

 

[hispls 5,000+ posts]

Supposedly the amp can run 1ohm bridged, meaning it can run 1/2ohm stereo.

Alphasonic hasn't sold a good quality amp since Mark Wahlberg was a boy band and back then they were build at Zed Audio and still did not like low impedance.

 

[marc2112 10+ year member]

Alphasonic hasn't sold a good quality amp since Mark Wahlberg was a boy band and back then they were build at Zed Audio and still did not like low impedance.

A lot of low impedance 2-ch amps were special orders back then. Not for anyone and especially not cheap.