Provo
Mar 10 2003, 11:25 PM
Ok...well if you want to move this to general go for it...but cause the speakers are SQ i thought here would be good. Anyways...
Morels are considered to be SQ speakers right? And I thought that the higher the crossover slope...the better? Well how come then my Morel Dotech's have a crossover slope of 6db?
Also in order to get a little more bass from the splits up front...would it be criminal to use the bass boost on the amp as they kinda lack a little?
Sonic Nirvana
Mar 11 2003, 12:48 AM
The thing about cross-overs is that there is no "one best kind", they all have their pro's and con's.
A first-order filter (6db/octave) has certain advantages, especially phase-coherency which has advantages for imaging especially.
Both Dynaudio and Morel use a lot of first order slopes for this reason, and in part because they can. Most of their tweeters use low Fs-resonant designs that feature very high power handling for tweeters.
The lower-order the high-pass filter slope(like 6dB/octave), the more lower frequencies find their way to the driver and most tweeters can't hack this, so steeper attenuation slopes are required to save the tweeter.
Morel and Dynaudio tweeters (for example)can hack this, so they can use more phase-coherent lower order filters to HP their tweeters.
In short, a lower-order filter can in this case indicate good quality drivers, rather than poor quality crossovers.
Similarly, when it comes to bass-mid low passing, this often indicates superior linearity above the low-pass filter point from the driver ie it doesn't get ragged in the "cross-over zone" and mess the sound up.
So don't "judge a book by it's cover".....
As for getting better mid-bass, the way to go is to seal up those front doors and get some sound deadener in there. You'll be larfing.
Hope that helps.
[ March 10, 2003, 22:54: Message edited by: Critter ]
shiny_car
Mar 11 2003, 01:28 AM
QUOTE
Originally posted by Provo:
would it be criminal to use the bass boost on the amp as they kinda lack a little?
you have a sub, so that will take care of subbass. if your splits are lacking midbass (ie: 80~200Hz range), then do as critter suggested, and ensure the doors are well-sounddeadened, sealed, and the woofers solidly mounted.
also, most amp boosts are too low to properly boost midbass, so i'm not sure you'll get very good results.
good luck
T-Bro
Mar 11 2003, 03:24 PM
i once thought i would cheat and use the amps bass boost to improve mid-bass - kinda worked, but it added significant muddiness and colouration, as the boost has a very low 'Q' and is thus wide. so i gave up on that idea
but like critter and shiny said, deadening the doors is a much better technique. that, and upgrading to speakers that already play down low well.
ps - ive you really wanna up the midbass with an EQ, its better to use one that is more precise, like a 30-band, or a full-parametric unit, so you can zoom in on the dip and not mess everything else up. just remember that your amp will have to work ALOT harder when you boost it down low, so if your already running them flat out, forget it
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