|
Audio Asylum Thread Printer Get a view of an entire thread on one page |
For Sale Ads |
109.132.213.102
In Reply to: RE: problem with first order network posted by Kloss on August 08, 2016 at 05:50:08
Ok looks easy enough indeed.
Is it ok to combine second order low pass on the woofer an first order high pass on the midrange? It won't be phase coherent anymore, is that a problem? can't hear it?
thanks
Follow Ups:
ALK uses a very small woofer inductor.
Use 2.5mH and a 128µF capacitor.
(as used in many AK and AL networks)
I have more questions :)
1) a 1st order network allows for a correct phase transition between drivers. What happens if you have 12dB low pass on the woofer, and 6dB high pass on the midrange? Does it still integrate smoothly? I know for a fact that my midrange drivers are "phase/time aligned" by ears; there's this location in depth were it suddenly all snaps in together (I'm able to do this because my midrange horn is in a separate enclosure from the bass horn, and it's also much shorter than a K400, wich allows for some back and forth moves). Will I lose this by combining second order with first order?
2) now might be the time to try bi-amping my speakers. I could electronically filter the bass bins, say, 24dB linkwitz-riley and leave the mids and highs cinnected to the ALK crossovers, with an 8ohm resistor to simulate the woofer. In that case the mid-high amp signal wouldn't pass trough an active crossover (or a line-level passive crossover) wich would avoid messing up with transparency and resolution.
"1) a 1st order network allows for a correct phase transition between drivers. "
Sure, if both drivers are dead flat for two and a half octaves on either side of the crossover point, and they are time-aligned.
I might try those values on this horn and compare (- could use another one of those Community 12 if Parts Express has one laying around - have not tried 12pe32)wonder how SM120 behaves with first order highpass and K55? - with no swamping resistor and perhaps 1829, I remember a scooped "devils horn sign" response shape. The old cowbell Altec 511 makes a good rock midhorn imo.
wonder if my LE5 were this weak back in the days of using with
K-horn and Edgar System 100 (?)
7 cubic foot package
Karlson Evangelist
Edits: 08/08/16 08/08/16
Post a Followup:
FAQ |
Post a Message! |
Forgot Password? |
|
||||||||||||||
|
This post is made possible by the generous support of people like you and our sponsors: