JL Audio CR-1 Crossover

hubbman,

I had my Lumin X1 running direct to my tube amps. I now have the JL CR-1 Crossover in between calibrating my JL F-113 subs.

Basically, I set my subs based on their mic and calibration process, then with the CR-1 I used it to find the best crossover setting. I use the subs internal volume setting more than the CR-1 controls to balance the outputs.

Happy to help further if you need it.

ozzy

Thanks Ozzy,

Should have the CR-1 today...

Hey Ozzy,

I have the CR-1 up and running, but I’ve run into an issue.

im using scenario 3 where the CR-1 allows me to share both the subs and the front L/R speakers between my AV Processor and my 2 channel Preamp/DAC.

the issue I’m having is related to the fact that my AV Prcessor only has balanced outputs, which is forcing me to use a converter cable turning the balance connection to RCA so I can use the unbalanced inputs on the CR-1.  The balanced XLR connections are used between my 2ch preamp and the CR-1 as the set up guide dictates, while the bypass av processor uses the unbalanced connections.

The issue is; when I hit the bypass button, I get a nasty buzzing in the L/R speakers.  But when I’m using the CR-1 for bass management, there is absolutely no buzzing. 
 

it appears that the CR-1 doesn't like both balanced and unbalanced connections happening at the same time.  If I disconnect the balanced cables from the CR-1 the buzzing stops. 

i suspect it has something to do with the “cheater cables” connected to the AV processor converting the XLR out to RCA unbalanced.

I wonder if you’ve had a similar experience with your set up?

thanks!

hubbman,

Now that is strange because I am doing the same thing. I am using Cardas XLR/RCA adapters converting the balanced XLR from my Oppo 205 to a RCA input at the CR-1, while using all the other as balanced.

You may be creating a ground loop, have you tried lifting the ground switch on the back?

So, try just using the XLR output and convert it to RCA at the CR-1 and use them in the RCA managed inputs.

I will double check my connections to make sure what I am saying is correct.

ozzy

hubbman,

I’m sorry I stated it wrong. I am using the mono sub output from my Oppo to a y- adapter then to 2 Cardas RCA/XLR adapters. Plugging those adapters into the CR- 1 Balanced managed inputs.

ozzy