AVS Forum Addicted Member
Join Date: Jul 2006
Location: New Hartford, NY
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I might, I just messed around with my EQ at lunch and I have a little tutorial for people who would like to try these awesome speakers. Trust me, EQ matters and it makes these the worse speakers in my shootout to my best! They are that picky but worth it when done right. I am curious about ribbons but for HT there is no reason for them to be honest. Here are my experiences with EQ so far.
I have been tweaking my DR's lately(since they got a bad review from others in a blind GTG) and right now I have a dual stacked array of DR-200's as my mains and dual stacked of DR-250's for my center. My room is heavily treated so I EQ at 2 feet from my screen and my room keeps them flat except I get a little boost in the 80-200 hz range which is most welcomed. I will get graphs of this when I can.
First thing to know is that the DR's were made to have very high sensitivity so they could play loud with little power. In my room the DR-200's fall off a cliff(rolloff) at 180hz and my DR-250's drop off at 150hz. These were made to mate with BFM's tuba and or titan subwoofers and together would give anyone a thrill ride. Without the subwoofers all one has to do is have a great sub system that can play to 200hz to integrate these and use a 200 hz crossover. Guess what, most don't crossover that high with their home theater subs. The sub system I have currently fall off at 100hz so I needed to do something. In addition, I have a single crossover on my processor which is THX 80hz! The difference for EQ is huge for my system and I suspect the same for the guys at the meet. I think they used an 80hz crossover as well. When I EQ flat(+/- 2.5 dBs) from 200hz to 10khz I have a whole in the response from 80-200hz with my THX crossover engaged. The sound is bright, ultra clear and ultra dynamic BUT ultra sharp vocals as well! This is how I have been running them for about 2 weeks now and every scene just seems to be lacking something although they have the best clarity ever! At lunch I decided to EQ them differently to see if I can get some of that magic(feel, goosebumps, midbass, you name it) back! Here is what I did.
1. I turned off all filters and ran each speaker without subs full range. What I am doing is adding EQ at the speaker because most speakers come with built in crossovers that flatten the response at the speaker. What happens is that when I compare speakers most are flat at the seat(my room) and are also flat at the speaker(2 feet from the screen). By EQing at the speaker I am creating a level playing field with all speakers(I did this for the shootout). Now that the speakers are full range I ran a measurement and then let REW set the filters. I am using a DCX 2496, set speakers to full range, slope of 12db/octave, LF cutoff at 70hz, and I picked an spl that made me flat with 80hz being the -5 dB point. I use a range of 80-10khz with 6 dB of max gain and flatness of 1 dB. I might be missing something but I used these filters. Basically I am turning down everything above 200hz to be flat to the midbass. Most are saying what! you will lose all that sensitivity above. My answer to you is that you will gain midbass, feel, fuller sound, a neutral speaker, not bright anymore, AND still have the most clear, dynamic speaker I have heard for HT! I lost 6 dBs of sensitivity when calibrating test tones to 75 dbs but using arrays I am still above 100 dBs from 100hz and above with 1 watt but now I have midbass with these. It took me about 30 minutes to setup my mic and EQ all the speakers and run The Bridge of Kazadoom scene once. Well worth it!
Marantz 7702 Atmos
3 Inuke NU4-6000 amps for all speakers.
Speakers- 7 Behringer B215XL's, 4 212xl's for ceiling speakers.
Front subs 12 SI 18ht ported SLLT powered by Inuke 6000
Rear subs 2 XXX ported SLLT powered by IPR2-7500.