He uses a 1200Hz fiter for 11v and a 800Hz filter for 8v, so the destortion at low frequency is lower at 11v
@DaveFred, the Titan tweeter is posted on HiFiCompass website...
https://hificompass.com/en/speakers/measurements/seas/seas-27tac/gb-h1825-06
https://hificompass.com/en/speakers/measurements/seas/seas-27tac/gb-h1825-06
When measuring distortion the sweep tone passes through a 2nd order high pass filter with F3=800 Hz for 8 Volt and 1200 Hz for 11.2 Volt. You should analyze only the range from F3 and higher up. Below F3, especially far from it, the measurement signal is too low, so the measurement software gives very unstable results.
Overall, the distortion for 11.2 Volt are higher than for 8 Volt.
Member
Joined 2003
First page that comes up when I search the internet for "seas titan woofer"...
https://audioxpress.com/article/test-bench-the-seas-l19rnx1-prestige-titan-series-woofer
https://audioxpress.com/article/test-bench-the-seas-l19rnx1-prestige-titan-series-woofer
Satori TW29RN-B fabric dome tweeter:
https://hificompass.com/en/speakers/measurements/satori/satori-tw29rn-b
https://hificompass.com/en/speakers/measurements/satori/satori-tw29rn-b
Hi @HiFiCompass
Thank you for spoiling us with several new measurements.
Do you have any plan to evaluate latest drivers from Kartesian?
The one below might be interesting. It'll likely be a great performer, between Purifi's 6.5" and 8":
https://www.kartesian-acoustic.com/wom185-vki
I'm curious on how they manage to achieve a high Qms (8.8!) without visible surround resonance symptom on impedance. (maybe just a bit at 900Hz, scale is bloated)
Interesting approach to try to keep a flat-ish emissive surface too!
Low quantity price is prohibitive for the occasional DIY though.
Thank you for spoiling us with several new measurements.
Do you have any plan to evaluate latest drivers from Kartesian?
The one below might be interesting. It'll likely be a great performer, between Purifi's 6.5" and 8":
https://www.kartesian-acoustic.com/wom185-vki
I'm curious on how they manage to achieve a high Qms (8.8!) without visible surround resonance symptom on impedance. (maybe just a bit at 900Hz, scale is bloated)
Interesting approach to try to keep a flat-ish emissive surface too!
Low quantity price is prohibitive for the occasional DIY though.
I really don't know how you're managing to keep doing this, but many thanks and very best regards as always. It's appreciated.
Yes, that woofer looks very impressive. It would be interesting to test it. I'll contact them next week, maybe they will agree to send some samples
Always look at the "Features/comments" section:
The HD measurements at voltage levels 2.83 - 8 V were carried out with High Pass Filter "on" (2nd order Butterworth type, 800 Hz cutoff, HPF2-800)
The HD measurements at voltage level 11.2 V were carried out with High Pass Filter "on" (2nd order Butterworth type, 1200 Hz cutoff, HPF2-1200)
Thanks a lot for that despite the invasion of your country.
This tweeter should be crossed above 2.5k hz, shouldn't it ?
why? This is a favorite for low crossover. Mine are crossed at 2k 4th order and sound marvelous, many cross lower. One of my favorite tweeters.
Thank you. This tweeter can be crossed whenever you want, really
. 2kHz is quite okay for my taste
These seem to be pretty expensive.
Also ask for the Wom200_vPA-S if possible. A very nice driver for high sensitivity 2way lowmidrange (best with added woofer)
TW29RN is a large dome tweeter with very low Fs and not wide sound dispersion. It was born for a two-way loudspeaker with a low X-over point. It has rich timbre and large scale sound, so it SHOULD be crossed as low as possible. I don't see any restrictions against a 2 kHz point