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  3. 172428-41

JL Audio CR-1 Crossover

So, I own 4 JL Audio F-113 subs. Each of these were bought used and all have been updated at JL Audio.

I have been very happy using them in my system. The main speakers are Focal Sopra 2’s. I am using a Iso-Max Jensen transformer(s) model #SP-2SX to connect the subs to my mains and it seems to work pretty well. BTW, the Iso Max unit(s) convert speaker level to balanced (similar to the Rel subs) using Speak-On fittings.

The JL Audio solution to the high/low band pass issue was their CR-1 Electronic crossover. I always wanted to try one of these but at $3000 list I didn’t think it could improve that much over my Iso Max unit(s).

However, I was able to find a used JL Audio CR-1 electronic crossover and I have just now connected it up.

The first thing I noticed was how much very low bass I was missing. Example: Linda Ronstadt “Blue Bayou” the bass now digs into the subterranean.

I guess I need to play with it a while. but I was wonderin’ if anyone else who owns or has owned this unit can share any set ups tips and general opinions of the unit.

ozzy

128x128ozzy
erik_squires
15,611 posts
 

I don't know this specific unit, but yes, having a properly configured line level crossover has many many benefits.

ozzy's avatar
ozzy OP
7,194 posts
 

Thanks erik. I’m thinking the reason there is so much more "low bass" is because I was drawing the bass out of the speaker outputs. Now I am getting the bass directly from the source in this case my Lumin X1.

ozzy

 

Ag insider logo xs@2x
oldhvymec
5,101 posts
 

Ozzy on Linda Ronstadt was the source an LP or CD or ?

 

Vinyl at my place can hit 30hz, I don’t use a rumble filter either. My stuff can’t pump it’s servo. Deepest hitting vinly rigs I’ve heard are always servo bass AND direct coupled..

CD or stream is source dependent, if it’s there my servos will play it below 20.

4 F113s ain’t cheap, they are really nice looking with a ton of features.. At least they arn’t bottom firing without a butt plate.. EX: REL Bad idea, old tech.. None I my buddies use bottom firing subs any more. Neighbors complain to much...

I stopped the waves in the neighbors pool!! 

Regards

ozzy's avatar
ozzy OP
7,194 posts
 

My source is a High Rez Download.

I like "the stop the waves in the pool" comments, I would think mine would create some white caps!.

ozzy

 

fiesta75
1,378 posts
 

I don't know anything about the JL CR-1, but I've been a big believer in using the low level inputs to all my subs. Exactly what you have described, more very deep bass. Some REL "experts" think using the high level inputs are better, so I just quit debating this. Enjoy!

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