Speakerplans.com Homepage
Forum Home Forum Home > Plans > New Projects Forum
  New Posts New Posts RSS Feed - 18"/21" Folded horns
  FAQ FAQ  Forum Search   Events   Register Register  Login Login

18"/21" Folded horns
 Post Reply Post Reply Page  <1234>
Author
Message
  Topic Search Topic Search  Topic Options Topic Options
MarjanM View Drop Down
Old Croc
Old Croc
Avatar

Joined: 10 February 2005
Location: Macedonia
Status: Offline
Points: 7745 		Post Options Post Options   Thanks (0) Thanks(0)   Quote MarjanM Quote  Post ReplyReply Direct Link To This Post Posted: 16 December 2016 at 11:18pm
Those are not FLH as he asked.
Marjan Milosevic
MM-Acoustics
www.mm-acoustics.com
https://www.facebook.com/pages/MM-Acoustics/608901282527713
Back to Top
levyte357- View Drop Down
Old Croc
Old Croc
Avatar

Joined: 27 July 2012
Location: UK, South East
Status: Offline
Points: 8089 		Post Options Post Options   Thanks (0) Thanks(0)   Quote levyte357- Quote  Post ReplyReply Direct Link To This Post Posted: 17 December 2016 at 1:10am
Has anyone built Labsub 1x18 yet?
Global Depopulation - Alive and Killing.
Back to Top
corell View Drop Down
Young Croc
Young Croc
Avatar

Joined: 19 August 2013
Location: Berlin
Status: Offline
Points: 1161 		Post Options Post Options   Thanks (0) Thanks(0)   Quote corell Quote  Post ReplyReply Direct Link To This Post Posted: 17 December 2016 at 1:10am
Originally posted by levyte357- levyte357- wrote:


Pairs is not a typical application for folded horns, but is there an 18" folded horn, that can outperform Scoops, in this configuration, over 40-80hz?

Simple answer: No, unless the pair of FLH is as big as 4 WSX (for example).
You can push the 1/4 wavelength resonance at the low end of the frequency response with some tricks, but there is just no way a FLH will be as loud as a Scoop of äquivalent size in the octave above that without having the required mouth area. For 40Hz, this required mouth area is about 2,5m²-2,8m².
So a 2 vs 2 flh vs scoop with a 40hz layout for both will have these results:
40-45Hz : ~equal output
45-75Hz : scoop is louder /more efficient
75Hz-up: flh is louder /more efficient

You should be looking at a mid-high q bandpass 6.order for the 40-80hz passband as alternatives to scoops.

The Lab-Sub is not a good solution for a 2 a-side 40Hz setup imo. They are designed for stacks of 6 (so 12 x 12" !) and drop below 30Hz then.


Edited by corell - 17 December 2016 at 1:14am
Back to Top
MarjanM View Drop Down
Old Croc
Old Croc
Avatar

Joined: 10 February 2005
Location: Macedonia
Status: Offline
Points: 7745 		Post Options Post Options   Thanks (0) Thanks(0)   Quote MarjanM Quote  Post ReplyReply Direct Link To This Post Posted: 17 December 2016 at 6:46am
If the request is to get al much sub 40hz from a given footprint, then making reflex subs with premium 18s is the way to go.
Sure it will take double the power, but hey, no free lunch.
Marjan Milosevic
MM-Acoustics
www.mm-acoustics.com
https://www.facebook.com/pages/MM-Acoustics/608901282527713
Back to Top
+/-3dB View Drop Down
Registered User
Registered User


Joined: 19 January 2012
Location: Sweden
Status: Offline
Points: 96 		Post Options Post Options   Thanks (0) Thanks(0)   Quote +/-3dB Quote  Post ReplyReply Direct Link To This Post Posted: 17 December 2016 at 8:35am
Originally posted by MarjanM MarjanM wrote:

Those are not FLH as he asked.


He said folded horn, not front loaded horn.
A TH got folds and is a horn

Edited by +/-3dB - 17 December 2016 at 8:36am
Back to Top
MarjanM View Drop Down
Old Croc
Old Croc
Avatar

Joined: 10 February 2005
Location: Macedonia
Status: Offline
Points: 7745 		Post Options Post Options   Thanks (0) Thanks(0)   Quote MarjanM Quote  Post ReplyReply Direct Link To This Post Posted: 17 December 2016 at 9:08am
Then TH will definitely outrun any scoop in the 30-50hz regin, but scoops will be louder above 50hz.
Also the sound will be much different because TH horns are lot cleaner sounding then scoops.

But, if the aim is more spl from a given foot print, then reflex wins.
My double 18s are pissing all over TH-118 in both spl and low end extention. But sure, they need double the power and a re just slightly bigger.
Marjan Milosevic
MM-Acoustics
www.mm-acoustics.com
https://www.facebook.com/pages/MM-Acoustics/608901282527713
Back to Top
Mark James View Drop Down
Old Croc
Old Croc
Avatar

Joined: 15 January 2006
Location: rig side
Status: Offline
Points: 5309 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Mark James Quote  Post ReplyReply Direct Link To This Post Posted: 17 December 2016 at 3:39pm
Originally posted by levyte357- levyte357- wrote:

Has anyone built Labsub 1x18 yet?
you mean amanos lab 18? Wink 
me so horny me love you long throw
horn loaded for her pleasure
Back to Top
levyte357- View Drop Down
Old Croc
Old Croc
Avatar

Joined: 27 July 2012
Location: UK, South East
Status: Offline
Points: 8089 		Post Options Post Options   Thanks (0) Thanks(0)   Quote levyte357- Quote  Post ReplyReply Direct Link To This Post Posted: 17 December 2016 at 4:11pm
Originally posted by Mark James Mark James wrote:

Originally posted by levyte357- levyte357- wrote:

Has anyone built Labsub 1x18 yet?

you mean amanos lab 18? Wink 


Guess I do.
Global Depopulation - Alive and Killing.
Back to Top
Mark James View Drop Down
Old Croc
Old Croc
Avatar

Joined: 15 January 2006
Location: rig side
Status: Offline
Points: 5309 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Mark James Quote  Post ReplyReply Direct Link To This Post Posted: 17 December 2016 at 4:33pm
we got a solitary one mdf prototype sitting in the shed waiting till i ever have the cash to build a 6 stack out of them and load em up lol did give it a try with a v18-1000b from a void cab and it sounded pretty good for the 2/3 minutes we had it playing before we got asked rather unpolitely to turn it down lol
prob be ok to 42 or something in pairs i recom 35 or even lower in 4 30 in stacks this jis just an assumption tho
120x120x60cm tho lol but oh i want a 12 stack of them one day just for a laugh
me so horny me love you long throw
horn loaded for her pleasure
Back to Top
BASSHORSE View Drop Down
Young Croc
Young Croc
Avatar

Joined: 19 September 2007
Location: wolverhampton
Status: Offline
Points: 1145 		Post Options Post Options   Thanks (0) Thanks(0)   Quote BASSHORSE Quote  Post ReplyReply Direct Link To This Post Posted: 17 December 2016 at 7:55pm
another point for the quakes,.they are super long throw,.had car shakin from bass from miles away,.no joke,.church windows rattling,.i put one box in my garden for a garden party & the shop is way way up the street & shop owner sed his shop was rattling,i was quite surprized it traveled that far but they do,.i wish ther was more ov these on the circuit to have a shoot out with,.i would put 4 against 4 ov any scoop no worries at all,.
Back to Top
BASSHORSE View Drop Down
Young Croc
Young Croc
Avatar

Joined: 19 September 2007
Location: wolverhampton
Status: Offline
Points: 1145 		Post Options Post Options   Thanks (0) Thanks(0)   Quote BASSHORSE Quote  Post ReplyReply Direct Link To This Post Posted: 17 December 2016 at 7:56pm
well 800watt scoops anyway Smile
Back to Top
luton_soundman View Drop Down
Old Croc
Old Croc
Avatar

Joined: 03 August 2010
Location: Bedfordshire
Status: Offline
Points: 4512 		Post Options Post Options   Thanks (0) Thanks(0)   Quote luton_soundman Quote  Post ReplyReply Direct Link To This Post Posted: 17 December 2016 at 9:08pm
Think ken uses the quakes also. Especially on carnival float. Might have to try some out
Sound Hire/Sales new/used equipment.
Back to Top
 Post Reply Post Reply Page  <1234>

Forum Jump Forum Permissions View Drop Down

Forum Software by Web Wiz Forums® version 12.06
Copyright ©2001-2023 Web Wiz Ltd.

This page was generated in 0.063 seconds.