Subwoofers and Crossovers.


My system is Cary DMS-550 / Luxman L-507uxii / Spendor D7.2

 

After researching I decided to add an active crossover and two stereo subs to the system.

 

  1. I am looking at JL Audio CR-1 as the crossover.  This will take the pre-out from the Luxman and feed mains-in and setup the Luxman as separates. Is there anything else that I should look at?  I am only looking at analog solutions.
  2. After looking a REL, Rythmic, SVS, Martin Logan and JL, I am leaning towards getting two JL Dominion D110s.  Would these subs be sufficient or should I be getting JL E110s? I won’t be using the internal crossovers, so primary concern is fidelity.
  3. If I am unable to treat the room properly, I may be introducing a DSP solution just for the subwoofers.

 

I am looking for some advice from people who have walked this path before me on both the active crossover and the quality of D110s. 

I would appreciate any advice on this process of integrating subwoofers into a two channel audio system.

dimbhaka

@dimbhaka  @kenjit 

To low Pass Filter or NOT to Low Pass Filter. That is the question. I am a Rel fan and have had them for 20 yrs. Here is their take on the Low Pass Filter. Make what you will of their position

Low Pass Filter?

@ozzy  thanks for the information. Do you see the benefits of high-passing the mains at low volume too or just at high volume?

 

At first, I ran the main speaker's full frequency and used the subs to fill in just the very low bass. After getting the CR-1, I found that removing the bass overlap not only sounded better but also reduced the need for the main amp (tube) to produce the lowest frequency.

I was initially afraid that the added circuitry may color the transparency. Too my surprise the CR-1 seems to be pretty transparent and only proved to provide benefit.

ozzy