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In the Forum: Horn-Loaded Speakers
In the Thread: Big mama 1.5" horns....
Post Subject: The best and worst crossover point?Posted by Superlian on: 8/13/2017
Dear
I know that it is very difficult to evaluate others system without a physical visit.
Still i have a very general question about the "worst crossover point".
I hear from experienced HiFi people that 2-4000 Hz is the worst place to have a crossover and that the region 1200-7000 Hz should come from one horn. Could loobing in the most sensitive area in the "threshold of hearing curve" be the issue?
For the record, when i compare my system with JBL M2 waveguide from 800->10000 Hz with JBL 2450SL (original Aquaplas diaphragm) i can hear a slightly wider, softer and coherent soundstage but it is also less dynamic, i miss the BIG feeling.
My room is 10ft 3in wide and 18ft 8in long. Height is 7ft.
My consern is the listening distance of 7ft from the horn mouth.
Will a Tractrix 600 instead of Tractrix 1000 be a better choise? I also have B&C DM50 which i can use from 400-1200 Hz in Tractrix 200. Then i can use JBL 2450SL Truextent BE from 1200 to 10000 Hz in Tractrix 600?
Regards Hans 
The system:
Fostex T500 : >10000 Hz
Radian 475 be : Tractrix 1000 :
2800-10000
Hz
JBL 2446 be from Truextent : Tractrix 200 :
600-2800
Hz
2x AE TD12M : closed enclosure : 80-600 Hz
AE TD18H+ : vented enclosure : <80 Hz
Groundsound 4 way digital active crossover/dac/preamp (IIR with PEQ & Delay):
http://www.groundsound.com/dcn28.php
First Watt B4mk1 2 way analoge active electronic crossover:
http://www.firstwatt.com/pdf/prod_b4_man_old.pdf
(Since i need 5 way crossover i use First Watt B4 after Groundsound and then cross T500 and Radian 475be)
Sonos Connect Magna Ultimo mod
Hypex Ucd2K dual mono
Anaview AMS1000
3x Anaview AMS0100
8 x RPG Modex Plate 1
2 x RPG Absorbor in ceeling
2 x RPG BAD
2 x diy custom absorbers
Diy rack
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