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Futzin'

220 SSi, Subwoofer placement options

123 posts in this topic

10 hours ago, Futzin' said:

More pics:

under helm kick panel:  snug

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under passenger kick panel: gappy

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y4mqq3AoI6kErqB4ro_cy78aXaushLvYegcI4nJJ

Looks just like my 220...

brick

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brick, I'd love to hear your thoughts at this stage.

*Was_Wylie_Tunes, what ya think of that radius?  Too much?  What about that locker in general?

I guess my leanings are (in no order):

1. tube in the port locker (will have to cut)

2. sub in an enclosure in the port locker

3. sub in the port cockpit seat, forward facing (8", FA)*

4. sub in the starboard bow (8", FA)

5. sub in the port cockpit seat, main face (10" FA)

6. both 3 & 4

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what I do, is take a straight edge the width of a woofer basket, about 11" for a 10" woofer, and lay it up there and see. 1/8" is a lot really. We cant pull the woofer or deck flat together without breaking something, so we have to seal that gap. Any air leaks and the woofer sounds like poo. 

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2 hours ago, Was_Wylie_Tunes said:

what I do, is take a straight edge the width of a woofer basket, about 11" for a 10" woofer, and lay it up there and see. 1/8" is a lot really. We cant pull the woofer or deck flat together without breaking something, so we have to seal that gap. Any air leaks and the woofer sounds like poo. 

Did that; see page 4.

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In the page 4 pic with the tablet, about 75% of a 8" woofer would not be in direct contact with the boat. No good. 

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3 minutes ago, Was_Wylie_Tunes said:

In the page 4 pic with the tablet, about 75% of a 8" woofer would not be in direct contact with the boat. No good. 

Copy, thanks

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I am not for cutting sub-sized holes. Too hard to change your mind if it doesn’t  work.

brick

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5 hours ago, brick said:

I am not for cutting sub-sized holes. Too hard to change your mind if it doesn’t  work.

brick

I agree with that thinking.  One factor I am considering, however, is that the hole for a Wet Sounds 8" sub is the same for their 8" coax.

It's looking most likely that I'll put something in the port console, however.  Your console opening must be wider than mine, though.  I don't see how I can get an 8" tube in without cutting/widening.  Mine's only 8 1/8" at its widest.

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2 hours ago, Futzin' said:

I agree with that thinking.  One factor I am considering, however, is that the hole for a Wet Sounds 8" sub is the same for their 8" coax.

It's looking most likely that I'll put something in the port console, however.  Your console opening must be wider than mine, though.  I don't see how I can get an 8" tube in without cutting/widening.  Mine's only 8 1/8" at its widest.

My cutout is 8.75 inches.  Maybe remove the divider to the front seat and slide in from the front?

brick

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On ‎2‎/‎15‎/‎2018 at 7:15 AM, brick said:

My cutout is 8.75 inches.  Maybe remove the divider to the front seat and slide in from the front?

brick

I will have to explore that option, yes.  I just LOVE to do stuff like that!

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Any idea how large that opening will be?

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On 2/15/2018 at 7:15 AM, brick said:

however, is that the hole for a Wet Sounds 8" sub is the same for their 8" coax.

True, but we need to look at the woofers OD, which is nearly 9" (8.9") when considering ho flush its going to seat. Seating flush at the ID is not enough. 

What about a custom rectangle thats 12" x 8" x ??? that would fit a 10 woofer? Even 7 dewep would give you 2+ inches of air space off the back of the woofer. 12" fits woofer and the ??? would be the variable that fits the other way through the locker door and gives us as much internal volume as we can. 

As long as we dont seriously compromise the internal volume, bigger woofer is always better. an 8 = an S-10, 10" a half ton and 12' = 3/4 ton, if you get the drift. 

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On ‎2‎/‎15‎/‎2018 at 4:57 AM, Futzin' said:

I agree with that thinking.  One factor I am considering, however, is that the hole for a Wet Sounds 8" sub is the same for their 8" coax.

...meaning, if I didn't like the 8" FA sub, I could in theory replace it with a coax, bow or cockpit.  Would have to find a spot for the other, though :P.

4 hours ago, Was_Wylie_Tunes said:

What about a custom rectangle thats 12" x 8" x ??? that would fit a 10 woofer? Even 7 dewep would give you 2+ inches of air space off the back of the woofer. 12" fits woofer and the ??? would be the variable that fits the other way through the locker door and gives us as much internal volume as we can.

A 'truck box' style may fit well, if the sub opening was on the vertical side ('back') instead of the sloped ('front')....due to interior vagaries, aka cockpit footrest.  The angle could cause obstruction to the magnet though I guess. 

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8 minutes ago, Futzin' said:

A 'truck box' style may fit well, if the sub opening was on the vertical side ('back') instead of the sloped ('front')....due to interior vagaries, aka cockpit footrest.  The angle could cause obstruction to the magnet though I guess.

Thats were a custom comes into play. Cut the woofer into angled face or perpendicular face. As long as the inside back wall is not touching the back of the woofer on an angled wall or smothering the back of the woofer on a flat wall, theres no issue. As long as the box is not grossly undersized. That would be a supper peaky one note wonder woofer. 

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An advantage for a tube is that stored items would not interfere with sound.  Also, simple and much cheaper.  And I know it sounds good on this boat.

But,

Wonder if a Kicker L7S 10" would fit . . . :o . . . much deeper, 6 1/4"

The JL 10 specs call for a bit smaller box . . . still 6" deep

Wet Sounds, 4.75" deep

Kicker KM10, 5"

 

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15 hours ago, Futzin' said:

Also, simple and much cheaper.

Ill give you simpler, but cheaper, im not so sure of. 

The 8" 250W self-powered is $320 https://www.southernaudioservices.com/MBTA8250D-Marine-8-inch-250-watt-Class-D-Amplified-Tube-P497.aspx

You can do an 250W 8" in a custom enclosure for about $300. Woofer, amp and materials for enclosure. Or for about $360, you could step up to a 500W 10". And thats go with Kicker. Step down to something in same arena as bazooka and you could easily come in way cheaper. 

If you cant do a direct radiating woofer an 8" is as large as you can do, then its hard to beat that bazooka setup for its simplicity and price point. But if you can effectively do a 10" woofer in a custom enclosure, then you gain the leverage of the larger woofer and get more output and deeper bass.  

Storing gear in a locker with a woofer, will effect them just the same, whether its a bazooka tube or a custom enclosure. Pile gear on top of or in front of the woofer, will effect them both. Remember, the only difference is the tube is a round enclosure, nothing more. Its still a woofer and acts exactly like any other woofer in any other type/shape of enclosure. 

With an IB woofer, you have to be careful of what get stored behind the woofer. nothing rigid or sharp. try not to pile too many jackets in there. No towels or covers stuffed against it. Other then that, the locker is still usable with no effects to the woofer. 

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Thanks, I am considering building an enclosure for a 10", but gear would tend to be stored in front of it.

If I go with a tube, it would likely be the passive 10", plenty of juice on hand.

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Yeah, I've pretty well wrung out all possibles as I see it, plus some from you guys.

I'll likely go with a tube in the port console, as that takes up the least room and will fire into a wall, away from gear.  The console has some nice gaps which helps; the starboard console does not.  Even the 8" tube will not fit through my port console door opening, so I will remove the bow backrest cushion to see how much space that provides for access.  The boat is a couple of hours away, so I need to go get it.  If the bow access is also too tight, then it's time to re-evaluate.

The cockpit port seat base is the most obvious spot for a traditional or a 'free air' sub, but we put a lot of large gear in that locker.

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1 hour ago, Futzin' said:

Yeah, I've pretty well wrung out all possibles as I see it, plus some from you guys.

I'll likely go with a tube in the port console, as that takes up the least room and will fire into a wall, away from gear.  The console has some nice gaps which helps; the starboard console does not.  Even the 8" tube will not fit through my port console door opening, so I will remove the bow backrest cushion to see how much space that provides for access.  The boat is a couple of hours away, so I need to go get it.  If the bow access is also too tight, then it's time to re-evaluate.

The cockpit port seat base is the most obvious spot for a traditional or a 'free air' sub, but we put a lot of large gear in that locker.

It is solid fiberglass behind the seat backs in the bow. Your only access is by removing the panel that separates the port console from the bow under-seat area, but it is only as tall as the seat bottom. I think  your amp is mounted to that panel.

Have you tried removing the push-on trim around the port console door cutout? You might get enough additional width to slide an 8 incher through.

brick

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Or get some new push on trim, and widen that opening a bit.  It looks like the console door covers that entire recessed area, is that correct?

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2 hours ago, TidalPotomac said:

119 posts on a speaker location!  Spring can’t get here soon enough.

:beat-dead-horse:    Too right!  But subwoofers seem to be an easy thing to get wrong.  But still . . . 

1 hour ago, brick said:

It is solid fiberglass behind the seat backs in the bow. Your only access is by removing the panel that separates the port console from the bow under-seat area, but it is only as tall as the seat bottom. I think  your amp is mounted to that panel.

Uh oh.  Not clear on how removing that panel helps . . . call me 'toopid

y4muAUUkZzUGdWO2a3tpAgqQn2eUeQzpp5c3qkvL

 

21 minutes ago, TNBrett said:

Or get some new push on trim, and widen that opening a bit.  It looks like the console door covers that entire recessed area, is that correct?

This is most likely . . . without the trim, it's 8 1/8" at widest.  May have to take my Fein to it.  Rules out the 10" of course . . . 

Two free air 8"s in the bow, would that be wrong?  :unsure:  Can ANYONE tell me the ideal application/placement for one of these?! 

Or some odd custom box that lets me put a traditional sub low on this panel . . . yeah right.

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