Thought of using two RS225 - one over and one under a KEF Coax and then multiple subwoofers. But it seems the Signature series is very tempting in this regard.
And they measure as flat as on paper?
Someone told me that a more firm suspension could tame unwanted resonances and breakups. This driver seems fine with it all though.
Someone told me that a more firm suspension could tame unwanted resonances and breakups. This driver seems fine with it all though.
All other manufacturers are in tears now over those flat Signature responses , life can be cruel sometimes 🙂
Maybe Mr. Larsen's FineCone (very expensive) has massively improved over the years!
www.loudsoft.com
Maybe Mr. Larsen's FineCone (very expensive) has massively improved over the years!
www.loudsoft.com
Last edited:
Please disregard, I left the plastic over the pole vent.... I'll get to redoing them...
A high Qms is good if you need to damp a TLine ... damping rises the losses means Q goes down .. so if Qms is high you'll have more "headroom" regarding damping of the TLine .
This is an initial measure on the 180 from Jon Marsh on axis. I have 4 on hand but have not had the time to measure them myself yet.
Someone mentioned here the 30deg response is flat ... in post #185 , I see two little hiccups in the phase curve that matches minor issues in the FR .
Distortion is pretty low but on what SPL level , 90dB at 1m ??
At around 1kHz , our hearing is most susceptibel for distortion (for an absolute level between 60 and 80dB) , but for a low crossover frequency there is some overlap and there is a chance to reduce the resulting distortion (dep. on rel. polarity) , don't know if this holds true for K3 tough ...
bye
Distortion is pretty low but on what SPL level , 90dB at 1m ??
At around 1kHz , our hearing is most susceptibel for distortion (for an absolute level between 60 and 80dB) , but for a low crossover frequency there is some overlap and there is a chance to reduce the resulting distortion (dep. on rel. polarity) , don't know if this holds true for K3 tough ...
bye
In the past, I've come to find out most Dayton FR curves are over-smoothed and don't always show all the details. They usually look way better on paper. The other issue is thr voltage they measure at, which is going to affect results. I'm not a big fan of the longer VC formers on these sig series drivers. A lower Qms is usually the result of an aluminium VC former and tends to hide more low level detail from its extra dampening properties. I like fiberglass, nomex and titanium formers over aluminum for this reason.
No.
It would be worrying if you didn't, since dynamic drivers are (mostly) minimum phase devices, so the one follows the other.
I think they did it in response to some complaining that their original graph presentations appeared on the rough side (especially for the alloy cone RS units) due to the physical proportions of the plots they used. So they shifted to Omnimic & DATS derived plots with a more forgiving set of proportions & a bit of extra smoothing applied. Personally I agree -the change in plot proportions makes sense, but the loss of resolution has been a bit of a shame.
Btw - the K3 peak above around 900Hz should go away if an appropriate filter is applied but dep. on passive LPF design take care of resulting impedance to dive not below nominal Z of the driver!
Time to kill those expensive Neumann studio monitors (KH120/KH150) with something equally as good but dirty cheap DIY stuff 😎
https://www.audiosciencereview.com/forum/index.php?threads/neumann-kh-150-monitor-review.39922/
Time to kill those expensive Neumann studio monitors (KH120/KH150) with something equally as good but dirty cheap DIY stuff 😎
https://www.audiosciencereview.com/forum/index.php?threads/neumann-kh-150-monitor-review.39922/
I'm still waiting to pull the trigger on the SIG225 (eight of them) but am waiting until I see some distortion data, especially at 100Hz and below. It's is included in the zip file on the SIG180 at PE but is currently missing from the data on the SIG225. Maybe they will post it later, not sure. But I really do not want to shell out $700 until I know more about what I am getting...
Hello! The whole construction is very similar , so the Sig225 should be equally as good! On the other hand , $700 can ruin any night sleep quite a bit!
no risc no fun says the devil , with a smile 🙂
no risc no fun says the devil , with a smile 🙂
Might be a little optimistic there, it's pretty tough to make something that performs as good.
if you consider the scale and resolution of the two graphs, the passband response on axis is exact within the capabilities of what we can actually hear so hats off to Dayton.
For 49.00 for a woofer of this caliber, not sure there’s anything to complain about here. REALITY CHECK…..if you’re wining that a 6.5” woofer can’t play to 45hz at ear piercing volume….get a grip…..you’re expectations are unreasonable.
Again, I have NO reason to suspect that the Dayton response trace at 30 degrees off axis isn’t as smooth as depicted.
And that’s where this driver should shine with a 6:9 listening triangle with the speakers faced fwd no toe in. For under $200 a diyer should be able to build a system for average spaces and levels that rivals commercial offerings more than 10x the cost.
For 49.00 for a woofer of this caliber, not sure there’s anything to complain about here. REALITY CHECK…..if you’re wining that a 6.5” woofer can’t play to 45hz at ear piercing volume….get a grip…..you’re expectations are unreasonable.
Again, I have NO reason to suspect that the Dayton response trace at 30 degrees off axis isn’t as smooth as depicted.
And that’s where this driver should shine with a 6:9 listening triangle with the speakers faced fwd no toe in. For under $200 a diyer should be able to build a system for average spaces and levels that rivals commercial offerings more than 10x the cost.
Yes but let's challenge the audio gods above us , showing them we are more than dust!
We have synergy here between us that can help a lot!
Remember Brandon/augerpro - his waveguides are our secret weapon!
cheers
We have synergy here between us that can help a lot!
Remember Brandon/augerpro - his waveguides are our secret weapon!
cheers