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pa & speaker-box plans

26-Jul-2017

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2 X 15



A 2 X 15" full-range modular cabinet for club and party systems... You can mutiply the cabs for even more power. This one is a beastie, offering more volume, and lower bass-end delivery... yet, again, it's not to hard to build.

You can use these as a pair with a single decent stereo power amp up to 500 watts per channel, or you can stack them for a more powerful system using Tri or Bi amping, and by adding extra input sockets and wiring them differently, you can couple the bass section and the mid/tops of several units to their own dedicated amp after an active cross-over has split the signal

So for example... as a straight pair, great!.. add an amp and party!!... but as the bass section is sealed from the upper units, by adding an exra power amp for the bass, with a cross-over driving it you can couple the bass sections together to be driven by their own dedicated stereo amp... the top end can be driven by another stereo amp, and you can use/keep the passive cross-overs to split the upper-end signal into mid & treble for the tweeters/horn.

With a tri-amped system, all 3 sections can have their own dedicated input socket and be driven direct.... So as you see it is very flexible.

The speaker brand is up to you, but... IT REALLY SHOULD RESONATE AT 40-50 Hz.....That's the ideal for the cab design

LOUDSPEAKERS 2 X 15" BASS
2 X 10" MIDRANGE
FLARED HORN
BULLET TWEETER
CROSSOVER BASS - MID @ 500HZ
MID - TREBLE @ 3khz - 5khz
TWEETER @ 5khz
PERFORMANCE 40 Hz to 20 Khz at a sensitivity of at least 102 db for 1 Watt at 1 metre
Exceptionaly smooth wide dispersion of high quality
CONSTRUCTION Fairly simple.
Make sure the mid-range compartment is well sealed with glue & mastic, and that the internal bracing is very strong.
MATERIALS 1-1/2 sheets of 18mm / 3/4" 8' X 4' board (2438 X 1219)



SPECIAL NOTE

Designed for bass drivers with resonance of 40-45 Hz


CLICK TO VIEW & DOWNLOAD THE PLANS


[plans will print out to an A4 page]

CLICK TO GO TO CONSTRUCTION TIPS PAGE


(very important to read this !!)


Good luck & happy building!



COMMENTS FOR:

'2 X 15'


There are a total:  9  comments posted to this page.


Name: k
Email: test
Activity: Professional
Date: 30-Dec-99

test add comment to '2x15 full-range mod cab' page


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Name: KILO
Email: here
Activity: Professional
Date: 30-Dec-99

This is a very good system cabinet...easy to build, and easily upgradable to a full bi or tri-amped active system...


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Name: jj
Email: bassboy44@netzero.com
Activity: Professional
Date: 01-Oct-05

Another comb filtering mess. Like elements should never be horizontally mounted. Any 2nd semester engineering student knows this. Worst cabinet deign I've ever seen.


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Name: Joe
Email: djjoe1@hotmail.co.uk
Activity: part-timer
Date: 18-Aug-06

I'm about to undergo building a pair of these. I'm planning on using Eminnce Beta15's for the bass, Eminence Beta 10's for the mid and then Eminence compression horns and a piezo tweeter for the treble. I was wondering if adding a couple of ports either side of the bass drivers is reccommended or is a straight no-no? Any feedback appreciated to my email djjoe1@hotmail.co.uk - thanks, Joe.


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Name: john maina
Email: maarifaman@yahoo.com
Activity: Hobby-ist
Date: 05-Oct-06

this is what i have been looking for thank you.


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Name: kernow Tom
Email: domdom@hotmail.co.uk
Activity: part-timer
Date: 23-Apr-12

i am planing on building one of these and then another to make a pair. i am new to speaker building and unfortunately am finding it hard to decide on what drivers to use. obviously as this is my first project i am not looking for pro drivers but i do have quite a flexible budget. it would be a massive help if you could recommend me some drivers that would work well in this cab. thanks alot


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Name: Isidore
Email: gothatsea@aol.com
Activity: part-timer
Date: 29-Jun-12

Please could someone suggest to me any drivers. I'm looking at 50 for sub bass and then moving down in price for the other drivers. Thanks.


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Name: TheBaron
Email: baron@mistral.co.uk
Activity: Professional
Date: 28-Jul-13

Interesting speaker. I produced a mid/high with 2x12" and a 2" JBL compression driver on a CD horn like this design (the lower half anyway) in quite large numbers for club installations in the '90's in the UK. For near field dance music they are fine but they won't please the 'horny' PA purists. They'll always say something isn't right, but for music replay they are absolutely fine and that's the point. It's a matter of personal preference but I never use horn loaded mids in near field situations on playback. It's nasty.. these will be smooth - just right for dance mids.


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Last added comment

Name: MBK
Email: lighthousembk@gmail.com
Activity: Professional
Date: 27-Mar-15

I used the ramsdell design where the horn and tweeters were above the tens. We triamped and used them for years. Extremely versatile and sounded great. We used backing tracks as a duo and played very high energy dance clubs, playing keyboard, guitars, vocals. They were stolen and I have been looking for plans now that I have my wood shop completed. Thanks so much for these!!!!!!


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 [back to top]

Cabinet plans

Each page contains a downloadable plan as a gif image, sized to print-out onto an A4 page.

STARTER FULL-RANGE 3 DRIVER CABINET

4 X 10" FULL-RANGE CABINET

2 X 15" FULL-RANGE CABINET

2 X 15" FOLDED BASS-BIN FOR MODULAR SYSTEM

1 X 15" REAR HORN LOADED SCOOP BASS-BIN FOR MODULAR SYSTEM

1 X 15" 2 WAY FULL-RANGE REFLEX CABINET (can also be simple bass unit)

2 X 12" ANGLED SHORT-THROW MID CAB FOR MODULAR SYSTEMS

2 X 10" MID AND HIGH FREQUENCY CABINET FOR PASSIVE SYSTEM

HF LARGE HORN CABINET FOR ACTIVE SYSTEM

EASY BASS CAB FOR 15"/18" BASS - (single or double!!)
[Kindly supplied by Celestion uk]
[also can build as 10"/12"/15"/18" + tweeter for full-range]

15" CELESTION W-BIN BASS CAB

MARTIN 15" HORN

EAW BH 882 DUAL 18" BASS

CERWIN VEGA 18" BASSBIN - EARTHQUAKE B36

Lots of plans here...




dancetech
& thomann
partner store

Help support the site & the users music space - Buy via our partner store for EU customers. One fixed price delivery for most items, even for heavy things like a bass-cab! - Here's the current top-sellers in this category!

eminence - delta-15a

€ 98.00  -  £86.07

rcf - l18p300-07 - 8 ohm

€ 269.00  -  £236.27

celestion - g12m-65 creamback 16 ohm

€ 138.00  -  £121.20

eminence - beta-12a-2

€ 79.00  -  £69.38

eminence - delta-15lfa

€ 99.00  -  £86.95

eminence - kappa-15lfa

€ 139.00  -  £122.08

rcf - lf18g401

€ 229.00  -  £201.13

the box - speaker 15-300/8-a

€ 64.00  -  £56.21

the box - speaker 18-500/8-a

€ 135.00  -  £118.57

the box - speaker 12-280/8-w

€ 55.00  -  £48.30

the t.amp - pa 4080 package

€ 185.00  -  £162.49

yamaha - stagepas 400i

€ 549.00  -  £482.20

soundboks - the soundboks

€ 749.00  -  £657.86

soundboks - batteryboks

€ 99.00  -  £86.95

ld systems - maui 11 g2

€ 725.00  -  £636.78

ld systems - maui 11 mix

€ 548.00  -  £481.32

ld systems - maui 28 g2

€ 990.00  -  £869.54

ld systems - maui 11 g2 bundle

€ 775.00  -  £680.70

bose - l1 compact

€ 990.00  -  £869.54

the box - mba120w

€ 438.00  -  £384.70

behringer - x32 compact

€ 1,725.00  -  £1,515.11

behringer - x32 core

€ 595.00  -  £522.60

midas - mr 12

€ 385.00  -  £338.15

behringer - x32 case bundle

€ 2,490.00  -  £2,187.04

behringer - x32 compact case bundle

€ 1,877.00  -  £1,648.62

allen & heath - qu-16 chrome

€ 1,777.00  -  £1,560.79

behringer - x32 producer

€ 1,379.00  -  £1,211.21

behringer - x32 rack

€ 1,239.00  -  £1,088.25

midas - mr 18

€ 869.00  -  £763.26

behringer - x32

€ 2,299.00  -  £2,019.28

the box - cl 115 sub mk ii

€ 379.00  -  £332.88

the box pro - achat 112 sub

€ 239.00  -  £209.92

the box pro - achat 108 sub a

€ 189.00  -  £166.00

ev - elx 118p

€ 769.00  -  £675.43

the box - cl 118 sub mk ii

€ 548.00  -  £481.32

the box - cl 112 sub mk ii

€ 295.00  -  £259.10

the box - ta18

€ 419.00  -  £368.02

behringer - b1200d pro

€ 315.00  -  £276.67

the box pro - achat 112 sub a

€ 288.00  -  £252.95

the box pro - achat 118

€ 577.00  -  £506.79

the t.amp - e4-130

€ 219.00  -  £192.35

the t.amp - e-400

€ 118.00  -  £103.64

the t.amp - tsa 4-1300

€ 489.00  -  £429.50

the t.amp - pm40c

€ 58.00  -  £50.94

the t.amp - e-800

€ 155.00  -  £136.14

behringer - inuke nu6000dsp

€ 420.00  -  £368.89

the t.amp - s-75 mk ii

€ 118.00  -  £103.64

the t.amp - ta 2400 mk-x

€ 344.00  -  £302.14

the t.amp - ta50

€ 68.00  -  £59.72

the t.amp - tsa 4-700

€ 389.00  -  £341.67

adj - mega tripar profile plus

€ 68.00  -  £59.72

stairville - clb2.4 compact led par system

€ 145.00  -  £127.35

showtec - sunstrip active dmx mkii

€ 185.00  -  £162.49

stairville - show bar triled 18x3w rgb

€ 233.00  -  £204.65

stairville - clb2.4 compact led par bundle

€ 179.00  -  £157.22

stairville - power strobe 1500 dmx

€ 77.00  -  £67.63

cameo - superfly xs incl. ir-remote

€ 85.00  -  £74.65

stairville - led bar 240/8 bundle

€ 155.00  -  £136.14

stairville - led bar 240/8 rgb dmx 30

€ 66.00  -  £57.96

stairville - clb4 compact led bar 4 tripar

€ 259.00  -  £227.48

cordial - cmk 222 bk/100m

€ 72.00  -  £63.23

the sssnake - sik 175 bk / 100m

€ 86.00  -  £75.53

the sssnake - ssk 425 bk 100m

€ 215.00  -  £188.84

the sssnake - sdk 120 bl 100m

€ 82.00  -  £72.02

the sssnake - sdk 120 bk 100m

€ 82.00  -  £72.02

cordial - cls 215/100m

€ 99.00  -  £86.95

cordial - cls 225/100m bk

€ 155.00  -  £136.14

the sssnake - ssk 215 bk 100m

€ 72.00  -  £63.23

cordial - cls 225/100m wh

€ 153.00  -  £134.38

the sssnake - ssk 225 bk 100m

€ 101.00  -  £88.71

pro snake - 14750-15 speaker twist 4-pin

€ 53.00  -  £46.55

cordial - crl 20 ll

€ 72.00  -  £63.23

pro snake - 14641 nl4 cable 4 pin 10m

€ 66.00  -  £57.96

pro snake - 14760-20 speaker twist 4-pin

€ 66.00  -  £57.96

pro snake - 10321 nlt4 cable 4 pin

€ 91.00  -  £79.92

cordial - ctl 20 ll - 2

€ 50.00  -  £43.91

pro snake - 14480-25

€ 70.00  -  £61.48

pro snake - 14719-10 ep 5 cable 5 pin

€ 70.00  -  £61.48

pro snake - tpl-4 20 ll

€ 62.00  -  £54.45

vovox - sonorus drive 200 ts/ts

€ 104.00  -  £91.34