New here, but just been playing with a T8V so thought I'd resurrect this old thread!
[Quick background, I'm a TV/Film/Games sound mixer. In the process of upgrading my home studio I got distracted by talk about the way Adam's ribbon tweeter "presents" the sound and decided I need to dip my toe in and try their T-series. So, I got hold of a T8V knowing it wasn't really going to be something that stayed in my studio, but was curious to see (a) if there was any truth in the whole tweeter thing and (b) just to get a feel for what progress has been made with entry level speakers recently.]
Obviously Amir & others have posted tons of measurements made with a lot of finesse with regard to "quality" and my more crude measurements here tally as much as you'd expect. But, since a fair chunk of my day job involves melting drivers with explosion FX at 85dB ref, all the red lights on the meters etc. it's actually power handing that really limits my choice of monitors. In some ways I'd be better off mixing on a PA system (Well, in a sense, that's what a JBL ScreenArray is IMHO, but anyway....)
So here's a T8V with the sweep levels & THD being pushed up and up, at around 2.8m from the speaker. Mostly seems to run out of go at around 100 cycles before anywhere else*. I wasn't totally sure if this was the driver; it sounded like it might be DSP limiting but I only ran it once, cos, ya know, I don't need to add to my LF driver death toll unnecessarily... Also the top octave seems to roll over too.
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Given this is at nearly 3m from the speaker, this is really really impressive to me in a budget monitor of this size!! The most obvious thing is that distortion up at like 4.6k though.
[*Edit: I think I had a bit of a room correction in from 80Hz down. Can't remember the frequencies or what I did now as it was just a lash up to get it working, but I suspect there was some PEQ cut going on, which could explain (a) why it has a bit more apparent headroom below 100Hz and (b) the distortion peak around 68Hz. I thought the issues in that room were lower than that, but maybe not.... oops.]
In terms of my perception of the T8V's sound, I guess of note is that before I found the review on ASR, I put the T8V up and just EQ'd it by ear to sound as "natural" as I could without taking measurements. Interestingly that involved a broad Q (well, medium Q I guess) push around 1.9k. I also felt something wrong around 5k which I couldn't fix with EQ, which I guess (now having more info, thanks ASR!) is actually a bit lower and is likely the 4.3k-ish(?) thing that's already been identified on this thread. So, I'm gonna say, in line with everyone else's more scientific observations, that measured 2kHz dip is clearly audible in real world use, but also fixable to some extent.
Comparing to some Dynaudio BM15s (which I know aren't state of the art, but it's a reference point I know and love, having mixed on them for 15 years or so) the T8V feels a bit "hifi" to me, whereas the BM (rightly or wrongly) gives me more insight in the mid range. Trying to match the T8V to that BM15 sound with EQ/FIR does bring it closer, but there was always something I couldn't quite get comfortable with - in many ways [to my ear, in my room] - The T8V's at it's best with the 2k PEQ'd only and don't touch anything else.
On the plus side I would say the T8V's bass is more extended, should you want it, and it sounds much more point-source than the BMs. I didn't try them as a pair, nor do much off-axis measuring, but I'd imagine the stereo imaging would be pretty decent? Overall, I'm properly impressed by what a monitor at this price point can do these days! While there's nothing about this that makes me want to rush out and buy a more expensive ADAM over and above Dynaudio or JBL's offerings with which I'm familiar, I could totally mix on T8Vs given a mid-range EQ push to un-mask that region a bit.
Oh, here's a weird thing - if I use Dirac in my room it always totally lunches the T8V and it sounds terrible, whereas it hardly touches the sound of the BM15 or other Dynaudios, including some cheap Emits. Dirac is always a bit unwieldy of course, but I don't have an explanation for this.