HDS Tweeter - Lowest possible crossover point?

Tyson · 26th August 2009, 06:47 PM

Hi,
I'm running the HDS Tweeter in my speakers and I'm running into some lobing/integration problems from the MTM woofers being spaced fairly far apart. I built the Elsinores, but I'm running into problems because I listen fairly near-field, and the speakers sound better the lower I drop the crossover point.

I'm set the crossover point at 1.5khz currently, with an active crossover slope of Linkwitz-Riley 24db/octave. Is this as low as I can go, or can I go lower? I'm mainly worried about keeping the tweeter safe and not damaging it.

Inductor · 26th August 2009, 09:56 PM

From that point of view I don't see a problem (Fs=700Hz). Now check that the output goes up ~4dB from 1K5 to 2K5Hz.

DcibeL · 26th August 2009, 11:37 PM

With an electrical 4th order filter, the Peerless HDS can likely be crossed lower than 1.5kHz without issue, however be sure to consider the driver's natural rolloff.

Ang · 27th August 2009, 05:34 AM

If you have room even a smallish waveguide could help.

Inductor · 09:19 AM

Quote:

Originally Posted by Tyson

I'm set the crossover point at 1.5khz currently, with an active crossover slope of Linkwitz-Riley 24db/octave.

Check also a Butterworth instead of the Linkwitz on the side of the tweeter (only), ((2)or give a higher xover region for the mid-woofer, (3)or maintain LR on tweeter and lower crossover point from 1K5). That must work. Report results.

http://en.wikipedia.org/wiki/File:Li...utterworth.png
http://www.integracoustics.com/MUG/M...cles/circuits/

26th August 2009, 06:47 PM	#1
Tyson diyAudio Member Join Date: Feb 2009	HDS Tweeter - Lowest possible crossover point? Hi, I'm running the HDS Tweeter in my speakers and I'm running into some lobing/integration problems from the MTM woofers being spaced fairly far apart. I built the Elsinores, but I'm running into problems because I listen fairly near-field, and the speakers sound better the lower I drop the crossover point. I'm set the crossover point at 1.5khz currently, with an active crossover slope of Linkwitz-Riley 24db/octave. Is this as low as I can go, or can I go lower? I'm mainly worried about keeping the tweeter safe and not damaging it.

26th August 2009, 09:56 PM	#2
Inductor diyAudio Member Join Date: Feb 2006 Location: Cascais	From that point of view I don't see a problem (Fs=700Hz). Now check that the output goes up ~4dB from 1K5 to 2K5Hz. __________________ What the Hell is this crap?! It's not crap, it's muzak.

26th August 2009, 11:37 PM	#3
DcibeL diyAudio Member Join Date: May 2003 Location: Saskatchewan	With an electrical 4th order filter, the Peerless HDS can likely be crossed lower than 1.5kHz without issue, however be sure to consider the driver's natural rolloff. __________________ The power of Science compels you!

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27th August 2009, 05:34 AM	#4
Ang diyAudio Member Join Date: Feb 2006 Location: Pittsburgh	If you have room even a smallish waveguide could help.

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