The dirty secret of DIY , you never have enough drivers in your lab , lots of sinners in this hobby :
https://diy.midwestaudio.club/discussion/2371/wall-of-shame-pt-2-driver-hoards
https://diy.midwestaudio.club/discussion/2371/wall-of-shame-pt-2-driver-hoards
Offaxis - here they shine! Really nice shining , beating Scan Speak easily 🙂
For 1/10th of the cost , nice result! Infact REALLY nice 🙂
Speaker Building as a hobby can only survive with high performance drivers at low cost! If this hobby goes down the drain the whole audio industry will be damaged! It's a cultural thing , do not underestimate the influence of cultural standards!
That's the problem -AFAIK nobody's entirely sure yet. I gather somebody in Europe bought several 180s (as I recall) and found the edge-termination was flat rather than as specified, & the cone profile around the VC connection was also different. Possibly production changes; it's not impossible either that he & whatever dealer he purchased from were unlucky & some little scoundrel further up the supply chain slipped some non-genuine items into a delivery. It's been known -fortunately not very often though. I think the query came as a surprise to the guys at PE, which suggests the latter & that it was a one-off hit that wasn't the fault of anybody at Dayton, the dealer etc. Like you, I've certainly used plenty of their products in the past, & to date, I've never had an issue -TBH, I've found them one of the most reliable.
The impedance curve says it all. You can't really do much about non linear stuff happening in the passband and it always shows itself, as long as the impedance isn't overly smoothed. I really hate it when they post a perfect pristine curve and then you find out its a hot mess measuring it yourself.
Lol. I've sadly got more than that much sitting around, but I also have alot of desirable NLA drivers which more than make up for it. Driver hoarding is a well known illness in this hobby. A stack of tweeters isn't so bad from a real estate POV, but it gets to be a problem with a whole bunch of 12" + pro audio drivers.
I am one of these too-much-drivers guys too ... I am sure one fine day I give all my stuff away for free to avoid further loss of time which is better invested elsewhere!
Dayton Audio must have found a way to center the coil in the gap easily :
https://www.lowbeats.de/site/wp-content/uploads/2019/04/Monitor_Audio_Chassis-Befestigung.jpg
https://www.lowbeats.de/site/wp-content/uploads/2019/04/Monitor_Audio_Chassis-Befestigung.jpg
The FRD data is good enough to speculatively reconstruct the impulse response. The 500-2k roughness is caused by a reflection at 3.4 feet (~6.5ms). There is a large difference in decay between the first 2 woofer peaks.
The hillside on the left here is just spectral leakage from using a sharp FFT window.
The hillside on the left here is just spectral leakage from using a sharp FFT window.
I thought it was an attractive feature 😳
Just today I was regretting selling 4x Eminemce Magnum 12HO. I've got room for them now, lol.
When economix goes bad you need enough DIY drugs in your shelter!
plywood & glue plus wax 'n oil ... then some dozens of tweeters , midranges and woofers!
CDs and/or LPs , the more the better!
LPs (out of print) you can digitize them!
Lets make exclusive clubs for exchanging copied digital music for a small fee , no trouble with your hobby budget no more!
The audio world becomes infinite large 🙂
Lets have a big big audio party! (and shake the house)
plywood & glue plus wax 'n oil ... then some dozens of tweeters , midranges and woofers!
CDs and/or LPs , the more the better!
LPs (out of print) you can digitize them!
Lets make exclusive clubs for exchanging copied digital music for a small fee , no trouble with your hobby budget no more!
The audio world becomes infinite large 🙂
Lets have a big big audio party! (and shake the house)
Someone asked me to measure sig180. Idk how useful this info is, might be totally useless, I just tossed it on an 8" baffle similar height to BMR speaker. There was no box to this, just tossed a thick blanket over the back and did a close mic and 1m measurement. Used Iphone NIOSH level to guage level at 1m. I was reading 86db for these measurements at 1m, but I also cranked the last one to try and bring out any distortion issues. The driver on it's own definitely sounds very pleasing which is generally a good sign to me. Seems really easy to cross.
It is consistent with the .frs data, considering the test conditions, although 1.5-4KHz is lower, who knows why.
Or... That most people find it easier to pay half for the 6", and that it's more suitable for a 2 way, where a 8" is often used as dedicated woofer in pairs in 3 ways, meaning that we often aim for 2 in parallel, letting us wish for an 8 ohm version.
I was given mine by a friend, didn't buy anything. Not sure what to do with them though.
I'm planning a two way to sit on top of a bass module, I have a wg300 + dx25, but I think it's a bit deep for my liking, even with good xover I can't help but feel like I'm hearing a driver in a horn.
Anyone have any suggestions on a tweeter to mate to the sig180 with a focus on good directivity integration? dxt is a little pricey, nd25fw I really like but they will 2500hz and I'm looking to go lower to meet 180. Not sure what else is out there, perhaps one of the diy 3d printed ones?
Anyone have any suggestions on a tweeter to mate to the sig180 with a focus on good directivity integration? dxt is a little pricey, nd25fw I really like but they will 2500hz and I'm looking to go lower to meet 180. Not sure what else is out there, perhaps one of the diy 3d printed ones?
Take polar measurements of the Sig180 and find the -6dB beam width point at about 60 (or 45) degrees.
You’ll need a turntable for that…
Either that if one of @augerpro’s 6” waveguides
https://www.somasonus.net/waveguides
You’ll need a turntable for that…
Either that if one of @augerpro’s 6” waveguides
https://www.somasonus.net/waveguides
Hi,
I will use SB26ADC with Phase plug and this in 100° : https://audiohorn.net/tweeter-waveguide/ , for constraint tweeter under 120° phase plug is necessary.
I'm interested by Sig 180 polar but it will depends of the baffle/integration in part.
I thinks it's also important to confirm or infirm the H3 problem around 850hz here :
https://www.diyaudio.com/community/threads/dayton-audio-sig-series.399555/#post-7358010
Hi,
I need some advice regarding SIG-120 driver. I was thinking about using this driver in car audio install (driver installed in A-Pillar, above dashboard, in closed enclosure with nett. volume ~1.0to1.5L).
What could be the lowest reasonable HP frequency? I was thinking about [170Hz / LR4 active] and [~1.5kHz LR4orLR8 to T34A], but not sure if this is a good idea..
The other driver i was going to use is SB-A MW13TX-8, but it feels to big and not looking good (enclosures already made, but have to redo it, since i've made some errors).
thanks for all the input 😉
I need some advice regarding SIG-120 driver. I was thinking about using this driver in car audio install (driver installed in A-Pillar, above dashboard, in closed enclosure with nett. volume ~1.0to1.5L).
What could be the lowest reasonable HP frequency? I was thinking about [170Hz / LR4 active] and [~1.5kHz LR4orLR8 to T34A], but not sure if this is a good idea..
The other driver i was going to use is SB-A MW13TX-8, but it feels to big and not looking good (enclosures already made, but have to redo it, since i've made some errors).
thanks for all the input 😉
