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TAD Compression Drivers - Opinions on TD-4001 vs. 4003? [Archive] - Lansing Heritage Forums
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l have read that the 4003 is better in the top end but is it a significant difference, or only slight?The top end is not where the magic is happening. In my opinion neither of these drivers really works without a tweeter. I realize that TAD used both of them in large two-way monitors, but I disagree with their approach. While they work very well in that application, I
find the air and delicate shimmer achieved once a tweeter is properly integrated is well worth the extra expense.
I have listened extensively to both drivers and while they share the trait of delivering spectacular detail resolution and a very neutral, low distortion sound, in these instances the 4003 is decidedly superior. Is it worth the extra expense? For me, I felt it was, but it may not be the case for everyone.
Widget
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I agree with the Widget in regards to either driver should utilise a super tweeter as long as the drivers are running naturally (non-enhanced) within their energy centers.
The ET 703 is the finest sounding hi freq device that I have ever had the pleasure to listen to.
Now lets start to split hairs.
Comparison of the 4001 to the 4003 is not an apples to apples contest.
4001 alnico 1 15/16 outlet orifice compared to the 4003 neo material with an 1 1/2 outlet brings a few tricks to the table.
The smaller 4003 outlet has less distortion at higher SPL levels compared to the 4001.
For a smaller home application I still feel that the 4001 is a better sounding driver-just my preference.
If you were going to use some digital trickery to enhance the hi freq (Lake,XTA,DEQX) you could probably stay two way and use the processer power to jam the hi freq thru the roof using a 4003.
If that were the case then I would use the 4003 since now the eqed spl levels will be enhanced and distortion now comes into play.
So to recap-moderate listening levels,I say 3 way-4001 and ET 703
Loud levels,4003 and digital speaker processer tricks.
Oldmics