High Efficiency Speaker Asylum Need speakers that can rock with just one watt? You found da place.

---

[ Follow Ups ] [ Post Followup ] Thread: [ Display  All  Email ] [ High Efficiency Speaker Asylum ]

---

[ Alert Moderator ]

---

RE: rough front horn (semi fullrange)

Posted by SpeakerScott (M) on November 13, 2014 at 12:38:35

In Reply to: rough front horn (semi fullrange) posted by hollowboy on November 9, 2014 at 03:36:20:

Okay...

So a dip like that (And I see it as 4.5kHz, though that's one of the stranger log scales I've seen) could be from a couple of factors.

1. The wavelength of 4.5kHz is 76cm, really close to the dimensions of your horn throat. Without seeing what the throat interface looks like, I would look there first.

2. As much up and down noise as there is, was this done with a sinusoidal sweep or one of the gated sine/MLS methods? If the latter, it looks like you have a wide open gating window....you might narrow that window down to eliminate reflections from external surfaces as much as possible.

Look into Room EQ Wizard (REW) for a good program that would enable you to do impedance sweeps for very low cost. If there is impedance shifts at that 4.5kHz with the driver in the horn, and no shifts with it out of the horn you can be pretty sure it's caused by the horn.

Scott
Scott Hinson
speakerscott.tumblr.com
www.etsy.com/shop/SpeakerScott

This post is made possible by the generous support of people like you and our sponsors:

Atma-Sphere Music Systems, Inc.

---

[ Top of Page ] [ Contact Us ] [ Support/Wish List ] [ Copyright © 2024, Audio Asylum, all rights reserved ]

---

[ General ] [ Speakers ] [ Tubes ] [ Vinyl ] [ Digital ] [ Hi-Rez ] [ Video Asylum ] [ Cables ] [ Tweaks/DIY ] [ Music ] [ Films ]

---