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Old 09-06-08, 02:47 AM   #1
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I started this thread.
Mach 5 Audio IXL-18 x2 sonosubs build thread


Finally I had chance to complete my two, 365ltr 15hz sonosubs...

Ports arrived first ($62 each ColloPort-6" sourced from affordabledrivers.com.au [of course] - specifically tuned for the IXL18s at 15hz in 365ltrs). Truly beautiful to behold.
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Then I got to work measuring and cutting the end caps (MDF 3x sheets from memory [check your measurements first!] of 18mm MDF sourced from Bunnings ~$100 total including lag bolts to attached the IXL18s to the enclosure and wood screws to attach the legs)
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Don't try doing this (=bad!)
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Next door neighbour kindly purchased a router and bits so I could borrow them! I whipped up an El cheapo jig out of some 4mm MDF
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Then the sonotube arrived courtesy of neighbour's truck (~$210 sourced from Bowers & Lever). My daughter did not drive (it's illegal).
Tip - wait until the sonotube arrives before cutting endcaps - I used a dressmaker's tape to measure the endcaps and the tape was slightly out (1mm too small!). So I ended up having to cut a few more circles. Thankfully the glue I used expands (foams) to fill the gaps. Afterwards I used filler around the inside of the enclosure joints to seal any leaks.
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I got to work gluing (Selleys Aquadhere from Bunnings - ~$25-$35 from memory)
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Don't forget to remove the protection film before gluing in endcaps
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Bottom on (IXL-18 from Affordable Drivers [naturally] - $304 including delivery)
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Top on (MDF with floor vinyl stuck on with contact adhesive [Bunnings - $10 enough for vinyl for two subs. Repco for tin of adhesive - $16]). Port glued in with Araldite epoxy resin (Bunnings, ~$18 x 2 packs) and supported internally with small blocks of MDF glued between the edge of the end cap and the port (at the top near the opening).
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Grill cover (Jaycar metal grills - $9 each, cut out to improve airflow, covered with speaker cloth, glued to plastic surround with contact cement adhesive) - not securely attached to endcap yet.
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Splash of tyre black (it was sitting around here) at the top and bottom to blend with the black fur covering (fur sourced from Spotlight - $47 enough to cover two subs - just! Glued on with contact cement). Note, tube and endcaps were primed inside and out due to extremely humid environment here in Queensland - I want these babies to last forever!
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The finished article (sorry for the blurry picture).
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Closer up (note really cool fur effect top right - looks much better in real life - will try for better pictures)
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Legs from Bunnings - $7 each (yes it has four, not three)
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I'd post some REW response graphs but I'm at my limit for attachments - is there a way to post more photos/graphs? I haven't measured the pair anechoic but, after accounting for a huge room gain around 50hz (which I've EQed out - the acoustics are very average in the concrete bunker listening area I have here, unfortunately), they go pretty flat down to 16hz, then start to roll off slightly as they approach tuning. They sound fantastic, plenty of effortless grunt. Well worth the effort! Thank you everyone for all your help


HTPC -i5-2500k 3.3GHz|PowerDVD12 ultra,reclock|MPC-HC,ffshow,reclock|foobar,wasapi plugin|HD6970 ATI HDMI|DENON AVR-4311|B&W DM602 S3 x2 fronts|LCR600 S3 center|685 rears, heights & wides|DIY 2 x Mach 5 Audio IXL-18 sonosubs 365ltr 15hz|Behringer NU6000 sub amp|Optoma HD33 projector, DIY 100" blockout cloth screen

Last edited by Blueeyedfrog; 09-06-08 at 05:22 AM..

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Old 09-06-08, 07:14 AM   #2
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Re: Mach 5 Audio IXL-18 x2 sonosubs build thread


Glad to see you got them done Sam! I can imagine the difference you experienced between the 12 inch Peerless and these 2 sonotubes! They bring new meaning to the term "effortless bass" don't they? As for attachment limits, it might have been the limit for one single post, I'm not sure. You should be able to continue on in another post. We would love to see the REW graphs.


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Old 09-06-08, 12:00 PM   #3
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Re: Mach 5 Audio IXL-18 x2 sonosubs build thread


Ya definitely post some REW graphs. Nice job on the build! I like the floor vinyl idea, looks sharp.


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Old 09-10-08, 06:44 PM   #4
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Re: Mach 5 Audio IXL-18 x2 sonosubs build thread


Nice work


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Old 09-11-08, 02:14 PM   #5
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Re: Mach 5 Audio IXL-18 x2 sonosubs build thread


Looks great. I hope my tubes turn out half that nice looking.


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Old 04-04-10, 01:03 AM   #6

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Re: Mach 5 Audio IXL-18 x2 sonosubs build thread


Nice to see you getting your hands dirty Sam, there i was thinking you just sold me drivers to play with

Regards Sam


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Old 04-05-10, 02:00 AM   #7
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Re: Mach 5 Audio IXL-18 x2 sonosubs build thread


Wow, looks awesome!! What is powering them?


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Old 04-05-10, 08:44 AM   #8
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Re: Mach 5 Audio IXL-18 x2 sonosubs build thread


Quote:
favelle wrote: View Post
Wow, looks awesome!! What is powering them?
His equipment list posted at the bottom has a behringer ep2500 along with a dsp1124 eq- considering a nice pair subs are we?


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Old 12-20-10, 04:51 PM   #9
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Re: Mach 5 Audio IXL-18 x2 sonosubs build thread


Did you use 20" sonotube for this? I'm building my own 18" in a sonotube (limited space) and my measurements come up 370L for a six foot long sonotube 18" in diameter.


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Old 12-21-10, 05:03 AM   #10
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I started this thread.
Re: Mach 5 Audio IXL-18 x2 sonosubs build thread


24" x 1393mm

Sonosub free software should help you with calculations


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