Harford Sound 118HP Subwoofers

[Evan Kirkendall]

Hey guys,
New year, and I figured a new thread. Finished up the "improved" model of my single 18" subwoofers this past week:

These feature a slightly larger port, a few changes on the internal bracing, and handles rotated 90 degrees for easier handling. The results were pretty impressive. The HP model features a -3 point of about 30hz, and some added output in the 50-60hz range. A nice little improvement over the old models:

HS118:

And, the HS118HP:

A block of 4 sounds good, and a block of 6 sounds even better!

Of course, proper power & processing is always very important!

Not a lot going on in the DSP world for the subs though... High pass at 30hz, low pass at 85hz. A little cut at 76hz is all that is required for EQ. The rest is in the box design! I'm up to 14 of these cabs now, and I plan to keep building more! They are impressive little boxes, weighing in at just over 92lbs. They truck pack, they stack and they sound good! I also used a 2 stage epoxy when I painted them this time around. Ended up with a super tough, nice looking finish.





Evan

 

[Silas Pradetto]

Re: Harford Sound 118HP Subwoofers

You gotta start using real perforated grilles if you want to be taken seriously :razz:

 

[Evan Kirkendall]

Re: Harford Sound 118HP Subwoofers

You gotta start using real perforated grilles if you want to be taken seriously :razz:

I like the industrial look!



Evan

 

[Jay Barracato]

I like the industrial look!



Evan

My taste in subs is a little more restrained but I bet the block of 6 would do a nice cardiod array.

As a matter of fact, if you feel like more custom cutting, it would be neat to have a set of array boxes with a fake foam/grill on the back and the casters/input panel on the speaker side.

 

[Douglas R. Allen]

Re: Harford Sound 118HP Subwoofers

Evan;

Very good response from a small "ish" box!
Any chance this design will go public? Would make a nice sticky on the top of this page!

Douglas R. Allen

 

[John Halliburton]

Re: Harford Sound 118HP Subwoofers

I like the industrial look!



Evan

It might be epoxy coating, but you really should hunt down a Line-X dealer in the area and start a relationship, they'll look better and survive longer. I'd also round over the edges with a 3/8" radius quarter rounding bit in the router.

Other than that, great job!

Best regards,

John

 

[Chris Greco]

Re: Harford Sound 118HP Subwoofers

Evan,

Do they tend to walk by themselves at hi levels?

Chris

 

[Mike Brown]

Re: Harford Sound 118HP Subwoofers

They look great Evan! Would love to hear them. Make sure you put all the grills on the right (same) way though! :lol:

 

[Alan Sledzieski]

Re: Harford Sound 118HP Subwoofers

Evan, what are you using under the grill?, where did you get it. Expanded metal, only way to go! Also what did you put on the expanded metal, just paint?

 

[Evan Kirkendall]

Re: Harford Sound 118HP Subwoofers

Evan;

Very good response from a small "ish" box!
Any chance this design will go public? Would make a nice sticky on the top of this page!

Douglas R. Allen

I'm afraid it will have to remain a company secret.



Evan

 

[Evan Kirkendall]

Re: Harford Sound 118HP Subwoofers

It might be epoxy coating, but you really should hunt down a Line-X dealer in the area and start a relationship, they'll look better and survive longer. I'd also round over the edges with a 3/8" radius quarter rounding bit in the router.

Other than that, great job!

Best regards,

John

John,
Honestly, I'd rather paint them once a year and keep them fresh than deal with the line-x stuff. It's just a pain in my opinion.

And, the edges are routed! No hard corners in sight. 8)~~




Evan

 

[Evan Kirkendall]

Re: Harford Sound 118HP Subwoofers

Evan,

Do they tend to walk by themselves at hi levels?

Chris

Yeah, in singles they will walk across the floor. Ratchet straps are my friend!




Evan

 

[Evan Kirkendall]

Re: Harford Sound 118HP Subwoofers

Evan, what are you using under the grill?, where did you get it. Expanded metal, only way to go! Also what did you put on the expanded metal, just paint?

1/4" grill foam. I just bought it from a wholesaler years ago. Still have like 100' of it left. Grill paint is just a spray on black epoxy. Works well and is pretty tough.



Evan

 

[Jordan Lahr]

Re: Harford Sound 118HP Subwoofers

to keep them from walking you could always use a bit of drawer liners (you know that rubber plastic stuff that you can buy to line your drawers to keep stuff from clanging and sliding in the bottom of your kitchen drawers) we use it between our dual 18's and it keeps them still..

 

[Bennett Prescott]

Re: Harford Sound 118HP Subwoofers

Hey Evan,

Can you turn up the smoothing on your Smaart traces? I think I can still see a little response deviation! :twisted:

P.S. Get V7! It is way easier to run.

 

[Matt Vivlamore]

Re: Harford Sound 118HP Subwoofers

I expect that a Powered Version is in the works.

 

[Jason Joseph]

Re: Harford Sound 118HP Subwoofers

where did you get your racks. i like them nice and simple..

 

[Tim McCulloch]

Re: Harford Sound 118HP Subwoofers

where did you get your racks. i like them nice and simple..

I think those racks are EWI from Audiopile Pro Audio / EWI Cables and Cases

The DSP and blue/left, red/right color scheme is a little Lititz.

/nudge, wink

 

[Shane Presley]

Re: Harford Sound 118HP Subwoofers

I think those racks are EWI from Audiopile Pro Audio / EWI Cables and Cases

The DSP and blue/left, red/right color scheme is a little Lititz.

/nudge, wink

I don't know Tim, it's perfectly Clair to me.... lol
Evan what happened to change the direction of the grill pattern, did you cut a couple grills on the opposite grain of the steel roll... My OCD is kicking in... twitch, twitch

 

[Greg Cameron]

Re: Harford Sound 118HP Subwoofers

Yup, I recognize the cheap latches I own a bunch of the EWI racks and some trunks. There are some very frustrating things about them but you get what you pay for...