2242H Subs for Big Bass

[scott fitlin]

Just took delivery of a BRAND spanking new QSC PL6.0II for my WidgetMaster subs. Nice BIG amplifier, with the capability to deliver me to LF heaven.

[hmolwitz]

Took the lad to the Eldorado today (he is 10) for a run on the bumper cars, went around 3 times, they definitely seem faster than others I have been on, and though I failed to schedule my own musical selections, the system sounded very good, the whole system was clear and loud, but not too loud, stressed or overdriven in any way. The bass was excellent.
Thanks Scotty for a nice visit, the staff was very nice.
Spoke to one fellow said he had been there 9 years, which find I find remarkable for a seasonal place, that says something good about you Scott.

Lived so close, and I had never been to Coney Island, kind of like a church fair on steroids, I am glad I made the trip.

Even got a hot dog@ Nathans for the lad and walked the Boardwalk.
Thanks
Harry

[hjames]

Visit to the Eldorado ...

How late does the season go for the ride - or for Coney Island in general?
Is it strictly a summer thing, or does it go into fall?

[hmolwitz]

After Labor Day I think it is weekends only, I think they are done for the season now. They are doing some ?upgrades/redevelopement? to Coney Island so the schedule was shortened I think they usually go later into the Fall.
http://www.nytimes.com/2007/06/18/nyregion/18coney.html
Scotty will have the full story I am sure if he checks in.
I would like to hear more about the project if he gets a chance.

• Coney Island update
• Posted in: home / rec.roller-coaster |
• Author: unknown |
• Date: 05-09-2007 |
• Show original |
• Post a reply

This past weekend was the last for the Zipper and the Spider - they
were taken down on Monday.

Astroland will be partially open next weekend (supposedly kiddie rides
only). The last fireworks of the season will be this Friday night
(9/7) at 9:30.

The rezoning hearing which was scheduled for this month has been
pushed to October (assumedly so that more behind the scenes deals/
talks can happen).

No one on any of the Thor controlled properties (which includes all of
the boardwalk storefronts) have been given any signals as to leases
for next season.

At this point, the only amusement properties open next season will be:
Deno's Amusement Park
12th Street Amusements
El Dorado Auto Skooter

I'll post more as it happens.

Here's an article about the removal of the Zipper and the Spider:
http://www.nypost.com/seven/09052007...y_classics.htm

September 5, 2007 -- Two longtime Coney Island rides were shut down
yesterday to be sent overseas, the latest casualties of a developer's
stalled bid to bring a $1.5 billion entertainment complex to the
amusement district.

Workers yesterday began dismantling the Spider and Zipper rides near
the West 12th Street shoreline, so both could be sent to an amusement
park in Honduras.

The workers said the rides' operator opted to sell the attractions
after being unable to obtain a land-lease extension with developer
Joseph Sitt, who owns 10 acres in the heart of the amusement district
but is having difficulty getting city approval for his controversial
project.

The news had other boardwalk businesses concerned that they, too,
won't be getting lease extensions for 2008 and that even more of
Sitt's property, such as Astroland Park, will be cleared and boarded
up come next summer. That was the fate before this season of the once-
popular batting cages, miniature golf course and go-kart tracks on
Stillwell Avenue.

"I think people are in denial about what we're facing for next year,"
said Dianna Carlin, the owner of Lola Staar Souvenir Boutique on the
boardwalk.

But a Sitt spokesman yesterday said the developer won't let Coney
Island become a ghost town and there will be plenty of amusements in
future years.

Harry

[johnaec]

Here's video of a news story about it, including comments by Scott and his father: http://video.wnbc.com/player/?id=154197

John

[hjames]

VERY cool, thanks for that link!

Here's video of a news story about it, including comments by Scott and his father: http://video.wnbc.com/player/?id=154197

John

[Ian Mackenzie]

Yeah I was with Scotty when it came on the news.

Its a sign of the times but I dont think Scotty's budging.

Ian

[JBL 4645]

No, and no. You can only have one tuning per box. First of all, for the purposes of tuning these four subwoofers are essentially 8 unique systems. If you choose to use one long and one short port in 1 one of the systems it is effectively tuned to ~35Hz.

I suppose if you tuned some of the woofers to ~30Hz, some to ~35Hz and the remainder to ~40Hz it would smooth the overall system resonances. It would be best to do this with separate amps for each tuned set since the combined impedance load and phase response with multiple tunings could get interesting. I have wired each woofer independently so that they can be powered in parallel, series/parallel, or independently.


Widget

Widget

That’s an interesting design and is it possible to have more than 2 ports for tuning say down to 20Hz?

I’m interested in getting a few if I can save up a few bob for JBL 2235H 15” and would like enclosure best suited for each one. I have no idea how to go about this I just listen that’s all. I may have to get a hi-fi store to knock up an MDF type enclosure for given price and MDF doesn’t cost much. It’s the time that one has to spend on building it.

Cheers.

[short_circutz]

I am trying to get my grubby little hands on a pair of 2242Gs right now..

I thought only 8 ohm 2242s were made. I've never heard of a 4 ohm version.

[Robh3606]

That’s an interesting design and is it possible to have more than 2 ports for tuning say down to 20Hz?

Why don't you try and see?? Get a copy of WinIsd. It's free shareware and comes with the drivers preloaded.

http://www.linearteam.dk/default.aspx?pageid=winisd


Rob

[JBLBob]

Here are four dual 2242 cabs that I built for our friend Scott Fitlin. They will be used to blast a bit of extra bottom end into his Coney Island bumper car ride. Since they will not need to be loaded into trucks every day going to different venues we pulled out all the stops and built the hell out of these boxes. These cabinets loaded with the woofers are well over 350lbs each! As many DIYers know MDF is an excellent speaker box material as it is self damping (non-resonant). The only thing wrong with it is that it is about as structural as a wet noodle. This becomes more of an issue as the box grows in size. Internal bracing helps, but to maximize the sonic impact at low frequencies we decided to build the box with a double walled construction. The interior layer is 3/4" MDF that is constrained by an exterior layer of 3/4" Finply. The 13 ply all birch Finply is extremely stiff. The combination of the two materials gives us a cabinet that while too heavy for many applications is nearly sonically ideal. Additionally the cabinets are braced with 1.5" X 3.5" Finply braces.

Another unique feature that we employed was to make the cabinets user tunable. Since they were being built on the West Coast for an East Coast venue, we decided to give Scott the option of tuning the bottom end for his room and taste. There are two ports per woofer chamber and we have supplied two port lengths. If two long ports are used the speakers will have maximum VLF power and low bass extension. If two short ports are used the bass becomes punchier but at the cost of VLF. It is also possible to use one long and one short for an intermediate tuning.

These subwoofers will be shipping out in the next day or two... I don't think the whales off the coast of New York will know what hit them.

Widget

What materials were used to make the ports? I hav ea pair of JBL E-155's and I would like to build a pair of single woffer cabs that are ported.

Bob

[Mr. Widget]

What materials were used to make the ports? I hav ea pair of JBL E-155's and I would like to build a pair of single woffer cabs that are ported.

Black painted 6" PVC for some and 6" black ABS for others...


Widget

[timc]

What does ABS stand for? Not antilock brakes i assume.


-Tim

[Ruediger]

What does ABS stand for? Not antilock brakes i assume.


-Tim

Acrylnitril-Butadien-Styrol-Copolymerisat

Ruediger

[Mike Caldwell]

Here is a link to a supplier of PVC pipe that stocks some non standard sizes. For my double 18's I wanted the largest port area possiable but was kind of limited on front baffle space for lots of multiple ports, their 7 inch PVC worked perfect.
http://www.plasticsupply.net/Ducting.html