Upgrading With Two Stereo Integrity HST12's - Page 6 - Home Theater Forum and Systems - HomeTheaterShack.com

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post #51 of 69 Old 05-07-16, 08:06 PM
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Re: Upgrading With Two Stereo Integrity HST12's

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Nick (Electrodynamic): If I orient my enclosures so that the driver is facing up, will this introduce any negative long term effects to the suspension?
No - as long as you don't set anything on them. No cat rides, haha.

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post #52 of 69 Old 05-08-16, 08:59 PM Thread Starter
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Re: Upgrading With Two Stereo Integrity HST12's

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No - as long as you don't set anything on them. No cat rides, haha.
Thanks guys. I no longer have cats so my little ground pounders should be safe
The reason I ask is that I want to experiment with direction [in addition to placement] once I reach the tuning phase.
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post #53 of 69 Old 05-08-16, 09:42 PM Thread Starter
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Re: Upgrading With Two Stereo Integrity HST12's

I began the finishing stage this weekend. I turned my garage into a paint booth using auto body overspray sheeting and duct tape.



Using scrap wood, I built two stands so I can shoot all sides of both enclosures simultaneously.



With a quart of surfacer applied, they'll sit overnight. I'll switch to 3M 360 grit purple discs for sanding duties.

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post #54 of 69 Old 05-21-16, 12:00 AM
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Re: Upgrading With Two Stereo Integrity HST12's

Any update on this yet? I keep checking back to see painted enclosures.

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post #55 of 69 Old 05-23-16, 09:14 PM Thread Starter
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Re: Upgrading With Two Stereo Integrity HST12's

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Any update on this yet? I keep checking back to see painted enclosures.
I had some recent travel that pulled me away for a few weeks, but now I'm back. Before I left, I found some filled screw holes weren't perfect so I drilled them to the metal head [like a tooth in a root canal], filled them with filler and sanded them smooth.

Tonight I laid another layer of surfacer. Will sand up from 320 to 800 grit tomorrow to prepare for paint.

Finally I have my color selected also! I chose a single stage, slightly dark orange. I'm using BASF Limco line since it's easy to apply and very economical. The color is close to this....
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post #56 of 69 Old 05-24-16, 10:38 PM Thread Starter
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Re: Upgrading With Two Stereo Integrity HST12's

More progress was made today. I achieved an acceptable finish at 320 grit and proceeded to move up to 600 grit...



Dusty I know, but it's very smooth. After that, I moved to 800 grit.



Not very interesting pictures, I know....but I'm moving forward to paint! So speaking of that, here's the tech sheet for the paint I mentioned earlier. A mix of color, hardener and reducer makes a winning combination.



After applying four coats tonight, I'll let it sit for the next two days to dry. So far, it's fantastic looking and meets my expectations. The re-work effort at the primer stage really paid off.



While the paint is curing, I'll get the internal wiring ready and install the gaskets on the underside of the basket lip.
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post #57 of 69 Old 05-25-16, 10:00 PM Thread Starter
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Re: Upgrading With Two Stereo Integrity HST12's

I'm slowly nearing completion.

Tonight I've soldered cables onto the Speakon connector, pre-drilled and finally mounted the jack. I'm using 8ga cable internally.

I also machine compounded, polished and sealed the finish. I used Menzerna and Sonax products and a Porter Cable polisher.

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post #58 of 69 Old 05-26-16, 10:03 AM Thread Starter
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Re: Upgrading With Two Stereo Integrity HST12's

I used 8ga KnuKonceptz blue power cable to connect the voice coils in series. I used Sound King 8ga red and black power cable to connect the driver to the Neutrik connector. To avoid any possibility of having any vibrations due to the cable hitting the inner walls, I wrapped each cable with BMW OEM fabric wire loom wrap. The filling will also surround the cables so I should have no tapping issues.



To avoid the series cable from making any noise, I left no slack in its length and also hot glued it to two contact points on the basket. All cables are soldered on their ends to make for a solid surface to insert into the spring loaded connectors. I do wish the drivers had binding posts so i could use banana plugs.

Going through all the threads on the forum, I never saw anyone explain how they actually installed these heavy drivers in their enclosures. So here's my intended approach:

Step #1: Suspend the driver over the opening [using a 3/4" board protected with microfiber clothes], connect the cables and rotate it so that the mounting holes line up with the ones in the baffle.
Step #2: With nitride gloves on, lift the driver slightly while someone else slides the board out.
Step #3: Proceed to crush the tips of all ten digits while lowering the driver to line up.



I deliberately did not recess the basket edge because I think it would make it VERY hard to pry the driver back out in case I need to remove it later. Here you can also see the speaker gasket installed to the underside of the driver. I didn't want anything sticking on my newly painted surface.

Last edited by ndyvidual; 05-26-16 at 10:08 AM. Reason: Just some minor wording changes...
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post #59 of 69 Old 05-26-16, 12:22 PM
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Re: Upgrading With Two Stereo Integrity HST12's

Nice work on the boxes! I've seen many people use zip ties, looped through the mounting holes, as makeshift handles to set the woofers into place.


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post #60 of 69 Old 05-26-16, 08:06 PM Thread Starter
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Re: Upgrading With Two Stereo Integrity HST12's

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Nice work on the boxes! I've seen many people use zip ties, looped through the mounting holes, as makeshift handles to set the woofers into place.


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I was thinking about doing that actually, but feared one breaking and scratching my finish. I didn't want to risk such a 'mission critical task' to Harbor Freight zip ties. I actually, just lowered with muscle and to get my last few digits from underneath it, I used a interior pry tool wrapped in that same fabric tape I mentioned above for providing leverage to tip the frame a bit. It all came together with zero problems. I credit that to a thorough test fit & alignment of holes very early in the project...it pays to plan ahead!

Will work on the second one over the weekend.

Still not sure what direction I want to go (if any) with the grill. I have MDF frames made to match the baffle, but that's really it. Still coming up short with grill examples for such a sub with huge surrounds and Xmax.
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