Re: Question re Subwoofer Connections, High-Pass, Low-Pass

On Sun, 16 Mar 2008 21:33:44 -0700, George Flanagin wrote
(in article <frksb80c4@[EMAIL PROTECTED]
>):

> On Mon, 10 Mar 2008 04:51:13 +0000, JimC wrote:
> 
>> Any advice or suggestions? Do I need an external electronic crossover
to
>> resolve this issue?
>> 
> 
> I think even a basic external xover is a worthwhile investment --- try a

> cheap one and decide for yourself. 
> 
> I use an Ashly XR1001 ($US300?) to divide the signal between my QUAD ESL

> 988s and a Meridian M2500 subwoofer. The Ashly allows you to choose the 
> corner frequencies of the high and low pass filters, and it also allows 
> you to choose the degree to which you want the frequency span in the 
> overlap to be exactly flat, slightly elevated, or slightly attenuated. 
> This will take care of most of the room abnormalities that Arny
mentioned.
> 
> I have two other pairs of speakers (Celestion SL700SE & QUAD 12L Active)

> that I occasionally use. After measuring, I wrote down the three
separate 
> xover settings on an index card, and taped it to the top of the xover. 
> Rapid set up when switching speakers is now possible. 
> 
> Inside the unit (i.e., no front panel control) is a switchable 20Hz high

> pass that allows you to filter out the dreadful rumble in many concert 
> halls, now faithfully brought to us through (SA)CDs. 
> 
> Regards,
> 
> George

This is a question, not an implied criticism (I haven't tried an active 
crossover). Don't you find that all of that extra circuitry (and another 
round trip of A/D and D/A - I assume the Ashly uses DSP for the filters) 
muddies the sound?  I would think that it would.