Dynaudio Esotec20W75 in TL..

[johnny1]

Well, let's ask the experts:
Some history:
I have auditioned the Aries, a well known kit from dynaudio, using the woofer mentioned above. Of course the bass was not too deep because of the closed -30 liters- cabinet but i was impesed by the well controlled and tight bass it produced. After this, all vented boxes sounded boomy to me.
One guy designed a TL version of this, with internal volume around 80 liters. People that heard the monster playing, praised it's sound but i haven't heard it personally. I just have a copy of the blueprints.
Does anyone of you has built, or heard this driver in Transmission line enclosure? I am asking this because the specific driver cannot work in vented boxes, so if the project fails, it cannot be converted to something else but just a closed box -which is not my first choice as far as the lower cutoff.

[planet10]

Originally posted by johnny1
Does anyone of you has built, or heard this driver in Transmission line enclosure?

What are the specs of the driver?

dave

[johnny1]

Well, planet 10 i knew that you would notice the message...
Well the specs are:
QES=0.5
QMS=1.5
QT=0.4
Fs=30Hz
VAS=65L
Xmax=9mm (p-p)
Le=0.2mH
Re=3.2 Ohms
Sens=87dB/1W/1m
Sd=180 cm2
BL=4.8Tm
Pnom=130Wrms
Z=4 Ohm

Thanks for your reply

[planet10]

Originally posted by johnny1
QT=0.4
Fs=30Hz
VAS=65L

These are all such that on initial blush the driver should work quite well in a TL. You should download Martin King's simulator sw and see what you can wring out of it.

dave