Bill Fitzmaurice wrote: ↑Thu Jan 27, 2022 10:17 pm
JensToft91 wrote: ↑Thu Jan 27, 2022 9:42 am
What looks wierd to me, is that the TT's have a lower roll-off than the THT. Maybe it's a placement "issue" ?
Anytime you're measuring in room the result is very much determined by the room, the speaker placement and the mic placement. For example:
http://ethanwiner.com/believe.html
I'm aware of that - which is why I said, it could be a placement "issue". It's not an issue, that the TT'S go low. I just don't understand why it goes as low as the THT, considering, that the curves are very similar. It doesn't look like there's any big peaks or nulls in the 20-30 Hz area - the two responses are equal.
This doesn't have anything to do with believes, even though that's a great article. This is a measured response - and I'm asking directly for a close-up measurement to see if it really is the room that equals these subs.
My TT turns on like a switch at 28 Hz or so, no matter where I put it. And it shows exactly that, when I put the mic infront of the horn mouth. I know that's a wrong way to measure it - and it will gain more extension in-room.
But I expect them to show different responses, the THT rolling off slightly later than the TT - per design.
It certainly haven't failed me to use this method.