Carver Amazing Line Source Speakers

Ozzy, I personally would not use the DEQX preamp built in crossover. I'm a minimalist at heart and don't like what the DEQX does.  I would connect your JLA sub amp to the the Raven amp via the high level connection using speaker wire (assuming the JLA sub accepts high level input, if not use the low level connection RCA/XLR).  It is considered by many to be the best way to integrate subwoofer to the main speaker.  I would go through the built in calibration of the JLA sub amp and then crossover at around 70 Hz as a start.  Then you'll need to play with the phase (start at 0) and crossover freq to get the most integrated and quickest bass response from the subs.  It's a lot of work.  If you don't have an SPL meter and want to do it by ear, get a nice head phone with a flat freq response (Senheiser etc).  Head phones are immune to room induced bass resonances.  Listen to a piece of music with a lot of acoustic bass instruments.  Compare the same music to what you hear through the head phone and through your speakers and get the speakers sounding as close to possible to the headphone bass.

Hope this helps.

How are the ALS sounding....or not sounding.....🙂

musicmann1,

Out of the box they did not sound too good. The treble was peaked and the mid/bass sounded kind of hollow.
I now have about 30 hours of playing time on them and they have improved sonically. 
So, I'm thinking with all the drivers, caps wire etc. they will need about 100+ hours of playing time to really evaluate.

ozzy

Probably a good 200 + hours I would imagine.........enjoy.....

Cheers......

Ozzy, the ALS does not sound good out of the box. You may even think there’s something wrong with the speakers. The sound will be too diffuse and the instruments won’t sound correct. It’ll almost sound like a defective Bose 901 at first. I notice improvement after 20 hours of continuous play with dynamic music. It will continue to improve to the 100 hour mark and will start leveling off. I wouldn’t consider them broken in until you hit 150 hrs.

When fully broken in, You’ll need to fine tune with the high freq and bass controls as their level is dependent on your room and electronics. The midrange control to me is not helpful. I have it dialed to 0.