AVS Forum Addicted Member
Join Date: Jul 2006
Location: New Hartford, NY
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Hey guys, I ran the subs through their paces tonight. Consider this round 1 of 3. My CS 18.2's are in the back corners and the DTS-10's are in the front corners. The back corners give me much more output so I did not want a volume thing decide. I played 3 movies, The Dark Night, X-men last stand, and Transformers 2. I used 2 scenes each. This was basically to get used to the Dayton amps that came in today. I don't like the back corners because I prefer the bass to hit me from the front. The front subs ports are 14 feet away and the back subs(CS 18.2's) are 7 feet away, maybe 6. I calibrated both of them flat and turned my new Krell HTS 7.1(I love this thing) to reference levels. With them level matched the bass from the Danley's walked all over the CS 18.2's no matter what scene. The Danley's had bass where the CS 18.2's seemed silent. The midbass seemed on par with each other so kudos to CHT because the Danley's are $3000 each although it seems you can get them much cheaper in todays economy. The Danley's just had more visceral rumble, shake, pulse waves, and the punch or midbass was similar(I just said that). I knew something has to be wrong because at Craig's the CS 18.2's were calibrated 3 db's hot and they were not silent at all. So I turned the CS 18.2's up to a level where it felt similar to the Danley's. In doing so the CS 18's became much more alive and visceral but seemed to be more audible than the Danley. What I mean is during TF2 when Sam gets blown up by Megatron there is a strong bass wave. The Danley's are pretty quiet until he lands and then you feel the air wave move your hair and clothes, a very cool effect. The CS 18.2's at first did nothing with that scene. So when I turned it up (when he gets blasted) the CS's had audible bass then you could feel the air move across but not as strong. The Danley's were quiet then the wave hit so maybe that dynamic swing made the wave feel stronger. I kept the CS 18.2's at this level for the rest of my tests because now they were doing something. The DTS-10's and the CS 18.2's just do it differently. I had no idea what level I turned the CS 18.2's were anymore(I will get to that later) but the midbass seemed to strong but now I can feel everything the Danley's were doing, even though slightly different. Now this is only Round 1 which is no EQ and different placements. It is very easy going back and forth as all I have to do is turn the DTS-10's Ashly amps off and turn the Daytons on. My next round will be measuring them and see why there is such a difference and try to level or match the responses using the same positions. Round 3 will be moving the CS 18.2's to where the Danley's are which will be more difficult for them but should still hit reference with no problems in my room. I will start with no EQ and then measure and EQ.
Here is the question, for the CS 18.2's to have similar low end performance(pulse waves, pants flapping, back vibrating, room shaking, etc....) the CS 18.2's had to be turned up 8 db's over reference to match the Danley's at reference. Basically the Danley's calibrated at 75 db's and the CS 18.2's were at 83 db's. The good news is that the CS 18.2's played that level with no problems and the amps never even got warm. The problem is the midbass is too hot and you can hear too much low level bass which makes the pulse or bass waves seem less impressive. I need to measure and EQ the CS 18.2's. I probably just have to tame a large peak at 50hz or something. I want suggestions on how as EQ is not my strength, meaning what Q does and such.
BTW, the Krell HTS 7.1 is awesome.
Andreas you missed a bass fest tonight as both played about 10db's louder than last night. Me likey!!!
The CS 18.2's reminded me of my 8 eD subs but with much better midbass. This is just the beginning and not drawing any conclusions yet. I may even try the Daytons on my Danley's just for fun. I will take pics of the rack, daytons, and the room setup.
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.