Congratulations on receiving your Captivator 1400!
The following is a guide for the initial set up of the sub. It should be pretty universal because in JTR's current LF Adjust program, @ Boost = flat outdoors.
1. Adjust the settings on sub amp plate.
2. AVR auto-calibration part 1 (level/phase/distance).
3. Check sub level in speaker setting, if sub level is - 6 ~ - 9, proceed to 4. if not, adjust gain and repeat 2 and 3.
4. Change speaker setting ( LARGE to SMALL ), crossover to 80 Hz.
5. AVR auto-calibration part 2 ( EQ and other stuff ).
6. Manual adjustment.
Your Cap 1400 LF Adjust is cut only, so @ BOOST, it is flat outdoors.
On your sub, start with Gain @ 12 o'clock
, LF Adjust @ 1/4 to 1/2
, Crossover @ 120 Hz/Out
, Delay @ 0 ms
, RCA input @ left
and input switch @ RCA
. This means that you are letting your AVR set the crossover.
Then let your AVR do the first stage of auto-calibration ( level/phase/distance for your system ). When it's done, there should be a place for you to check the results and make adjustments ( typically in speaker level setting ).
For the sub level, try to aim for a value of - 6 ~ - 9. If you get a -12 for sub level, turn the gain down and rerun the first stage of auto calibration; if you get a -3, turn the gain up, then rerun auto calibration. After this, your sub is level calibrated with the rest of your speakers.
The AVR might tell you that your speakers are LARGE
, and speaker crossover is 60 Hz
or whatever. Change the speakers to SMALL
, and crossover to 80 Hz
. ( The theory is, the more capable your mains are, the lower the crossover should be. THX recommends 80 Hz, so 80 Hz is a good point. Setting it higher might cause human voice to come from the sub and too much localization )
Now you can proceed to the 2nd stage of calibration, where it does the EQ. After that, your system is calibrated.
Now that the system is calibrated, any time you want to just turn down your sub, you should do so on your AVR speaker level setting, not with the gain on your sub. If you adjusted the gain on your sub, you should run the auto calibration again. The theory behind this common practice is it allows you to fine tune the wooferage based on the bass content. You can turn it up for 1 movie and return to the original setting afterwards. Of course since the knobs have detents now, it is easier to do so.
The next steps are for manual adjustments
You can manually bump the sub level in the AVR speaker level setting. Most people will increase say a -6 to 0 ( 6 dB hot ) or -6 to -3 ( 3 dB hot ). This is commonly referred to as 'the sub trim'.
Then you can adjust LF Adjust to taste. If your room is very small, you should leave it closer to Cut. If your room is big, you can try somewhere between 12 o'clock ~ Boost.
A lot of people bump up the center channel level by 2 dB. This will make the dialogues louder/clearer.
I have a Pioneer AVR and the above works. It would work for Denon/Marantz AVR as well.
Below is what the LF Adjust does to the FR: