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Post by thomash on Jan 31, 2023 6:21:44 GMT -7
The Fi subs are no longer being sold. It appears One Audio may pick up the production, but no clear timeline.
The Stereo Integrity HT-18 V3 looks to be the best current deal I have found.
Are there any others that are currently being sold?
I'm currently looking at a 2 x 18" build.
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Post by ThomasW on Jan 31, 2023 13:13:46 GMT -7
Hi
Yes I guess One Audio is the way to go IF they're shipping drivers. I'll look around for more suppliers if I find any a link will be posted here
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Post by ThomasW on Jan 31, 2023 18:50:23 GMT -7
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Post by thomash on Feb 1, 2023 19:43:11 GMT -7
I'll drop links to ones I come across as well. stereointegrity.com/product/ht-18-v3/ Specs: T/S Parameters (coils wired in series): Re: 4.2 Ohms Fs: 23.1 Hz Qes: 0.69 Qms: 4.11 Qts: 0.59 Le: 4.7 mH Sd: 185 in^2 Vas: 220 Liters BL: 19.7 Mms: 434.1 g Cms: 109 uM/N SPL: 91.67 dB (2.83V/1M) Xmax: 25 mm one-way via 70% BL RMS Power Handling: 750 watts RMS Cutout: 16.56″ Outside Diameter: 18.0″ (without gasket) Mounting depth: 9.17″ Basket OD flange thickness: 0.35″ Gross Weight: 36.3 lbs Net Weight: 33 lbs Price as of 2/1/23 = $199.99 Also a 24" that appears purpose built for IB (I know, probably hard to hoist/mount alone. Also on the expensive side) stereointegrity.com/product/ib-24/Re: 5.8 Ohms Fs: 28.4 Hz Qes: 0.81 Qms: 5.14 Qts: 0.70 Le: 4.8 mH Sd: 330.13 in^2 Vas: 328.0 Liters BL: 27.96 Mms: 612.0 g Cms: 51.3 uM/N SPL: 93.1 dB (2.83V/1M) Xmax: 60 mm total linear excursion, or 30 mm one-way via 70% BL Power Handling: 1500 watts RMS Price as of 2/1/23 = $999.99 - $1349.99 Specs for Dayton Audio UM18-22 Resonant Frequency (Fs) 19.5Hz DC Resistance (Re) 4.4Ω Voice Coil Inductance (Le) 2.22mH Mechanical Q (Qms) 3.82 Electromagnetic Q (Qes) 0.62 Total Q (Qts) 0.53 Compliance Equivalent Volume (Vas) 7.49ft³ Mechanical Compliance of Suspension (Cms) 0.1mm/N BL Product (BL) 23.8T·m Diaphragm Mass Inc. Airload (Mms) 655g Maximum Linear Excursion (Xmax) 22mm Price as of 2/1/23 = $339.98 |
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Post by thomash on Feb 1, 2023 19:52:20 GMT -7
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wori
New Member
Posts: 12
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Post by wori on Feb 17, 2023 11:24:21 GMT -7
One Audio USA has (still) IB318v2 in stock. I just ordered and got confirmation on two of them. I'll be starting my install after I get them.
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Post by thomash on Mar 14, 2023 5:01:41 GMT -7
One Audio USA has (still) IB318v2 in stock. I just ordered and got confirmation on two of them. I'll be starting my install after I get them. Wori, Thanks for the updates. Glad to see One Audio is continuing the line. |
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darkmatter
New Member
A long time lurker, but ready to change that as I am about to build a massive pair of subwoofers.
Posts: 1 
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Post by darkmatter on Jul 22, 2023 14:27:05 GMT -7
I am contemplating a 2 x 18" build and researching suitable drivers.
Whilst there are a wealth of suitable drivers available to the US market, the UK marketplace seems somewhat more limited.
Be interested to learn if there are any UK based members and which drivers have proved suitable for IB use?
Thanks,
Simon
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Post by thomash on Aug 14, 2023 8:21:32 GMT -7
Looks like the IB3V3 was released.
COIL Single 4Ω
FS 24.1Hz
RE 3.9Ω
LE 1.59
QMS 6.41
QES 0.82
QTS 0.72
MMS 402g
CMS 1.083
SD 1210cm^2
VAS 222.01L
SPL 88.1dB
BL 17.3 N/A
XMAX
36mm
One Way
RMS 1125w@ 20Hz
OD 18.5"
ID 16.875"
DEPTH 11.250"
It looks like a little step up from the V2.
How well would two of these work in a 10'x20'x8' room? (opposed manifold to ourside) Or is it still advisable to start with 4?
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dan77
Junior Member
Posts: 66
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Post by dan77 on Aug 15, 2023 7:34:59 GMT -7
I have 4 of the IB3 15 inch in an opposing manifold outside
I am considering flipping them out to 4 18 inch as occasionally they bottom out.
My room is a dedicated room that is 17 x 13.5 x 10
Note that I crank up the subs disproportionately so I am really the root cause. It works on most movies, but like last night I was watching 007 and during the bar scene the bass is just stupid loud (and I can hear the IB’s bottom out). For most of the movie it works just fine. So for a few minutes here and there I just turn the volume down. I can flip to Maverick with the same settings and I don’t have that issue - it actually sounds incredible in all scenes. Each movie is mixed so differently it’s amazing. My point is that if I had even more headroom with my subs I don’t think I would have to turn down the volume from time to time.
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dan77
Junior Member
Posts: 66
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Post by dan77 on Aug 15, 2023 7:42:27 GMT -7
Please note that I would never watch movies at such volumes with my wife or friends. It is all so absurdly loud at that point that no one but me enjoys it like that. When watching movies with others I turn it down to sane levels and the subs perform just fine. I just wanted to point that little detail out : )
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Post by ThomasW on Aug 17, 2023 8:53:27 GMT -7
Yep that's the driver you want to use!
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