Dancetech & Thomann store!

Help support the site & the users music space - Buy your gear via our in-house store for EU customers. One fixed price delivery (€ 23) for most items, even for heavy things like a bass-cab!

Here's some PA-ware 'Hot-deal' cabinet examples...


the box pro
dsp 18 sub



the box pro DSP 18 Sub, 18" subwoofer, 800W/1800W (rms/peak), 128 dB max SPL, 30 - 150 Hz,...

€ 355.00  -  £329.19

jbl
eon 618 s



JBL EON 618 S, active Subwoofer, 18" reflex housing, 31 - 150 Hz, Class-D amplifier with 5...

€ 675.00  -  £625.92

behringer
b1200d pro



Behringer B1200D Pro 12" Subwoofer - Eurolive-Series, 500W Class D digital amplifier, inte...

€ 229.00  -  £212.35

turbosound
iq18b



Turbosound iQ18B, active 18"Subwoofer, 3000 Watt Klark Teknik Class D Poweramp,Digital Sig...

€ 869.00  -  £805.82

db technologies
sub 615



dB Technologies Sub 615 Active Subwoofer - 1x 15" Bass reflex subwoofer, 600 watts RMS, 12...

€ 466.00  -  £432.11

qsc
kw 181



QSC KW181, powered subwoofer, 1.000W class D amplifier, 2.000W peak output power, 18" woof...

€ 1,326.00  -  £1,229.59

the box pro
tp 118/800



the box pro TP 118/800 High Power Subwoofer - 600W RMS/2400W peak, 8 Ohms, 96dB SPL (1W/1m...

€ 433.00  -  £401.51

ev
elx 118p



EV ELX 118P, Aktiv Subwoofer 18", Frequency 32Hz - 130 Hz, 134 dB Max, 700 Watt Class-D Am...

€ 685.00  -  £635.19

the box
cl 115 sub mk ii



the box CL 115 Sub MK II, active 15" subwoofer, 220/500watts (RMS/peak) + 2x 220/500 (RMS/...

€ 388.00  -  £359.79

the box
ta18



the box TA18, 18" Active Bandpass Subwoofer, 500W RMS, frequency range 35Hz-250Hz, stereo ...

€ 398.00  -  £369.06

bose
s1 pro system



Bose S1 Pro System, all-in-one-PA, floor monitor, practice a mplifier and primary music sy...

€ 548.00  -  £508.15

jbl
eon 615



JBL Eon 615 - 15"+1" full range active PA speaker, 2-way bi- amped, 500/1000W (RMS/peak), ...

€ 385.00  -  £357.00




Hot Deals - Speaker deals!

Here's the previous week's best-sellers in speaker category for box-building, upgrading or replacements!


the box
speaker 18-500/8-a



the box Speaker 18-500/8-A - 18" speaker, 600W RMS, 2400 W Peak, 8ohms, 40 Hz - 1.5 kHz, a...

€ 138.00  -  £127.96

the box
speaker 15-300/8-a



The Box Speaker 15-300/8-A - 15 speaker, 300W/8ohm (RMS), 1 200W/8ohm (peak), 50Hz-4kHz f...

€ 66.00  -  £61.20

the box
speaker 12-280/8-w



the box 12-280/8-W speaker 12" speaker, 280 Watt RMS, 8 Ohms...

€ 55.00  -  £51.00

rcf
lf18g401



RCF LF18G401, 18" subwoofer, 900 Watt RMS, 8 ohm, 98dB sensitivity, 30Hz - 1kHz, Weight 13...

€ 238.00  -  £220.69

eminence
kappa-15lfa



Eminence Kappa-15LFA, 15" bass speaker, 600watts/8ohm (RMS), frequency response: 38Hz - 2,...

€ 139.00  -  £128.89

eminence
delta-15lfa



Eminence DELTA-15LFA, 15" bass speaker, 500W RMS, 1000W Peak, 8 Ohm, frequency response 42...

€ 109.00  -  £101.07

precision devices
pd.186/2



Precision Devices PD.186/2 18" Speaker 700RMS, frequency response: 30Hz-2kHz, 8ohm, sensit...

€ 309.00  -  £286.53

eminence
delta-15a



Eminence DELTA-15A, 15" bass speaker, 400W RMS, 800 W Peak, 8 Ohm, frequency response 48Hz...

€ 99.00  -  £91.80

ev
dh7n, dh1a



EV 84234 diaphragm 3" for EV Driver 8 Ohms : DH5-8WPX, DH1A, DH6-8, DH7-8, N-DYM-1, N/DYM5...

€ 189.00  -  £175.25

rcf
l18p300-07 - 8 ohm



RCF L18P300-07, 18" bass driver, 1000 Watt RMS 8 Ohm, 35Hz - 1kHz, sensitivity 97dB...

€ 269.00  -  £249.44




Hot Deals - Amps deals!

Here's some PA-ware 'Hot-deal' Amp examples!


behringer
nx3000



Behringer NX3000, ultra-lightweight 2-channel class D amplifier, 2x 900 Watt into 4 Ohms, ...

€ 189.00  -  £175.25

the t.amp
e-800



the t.amp E-800 stereo amplifier - output power: 2x 500W into 4 Ohms, 2x 350W into 8 ohms ...

€ 155.00  -  £143.73

the t.amp
quadro 500 dsp



the t.amp Quadro 500 DSP, 4-channel digital amplifier, Class D, 4x 500W @ 4 Ohms, 4x 250W ...

€ 389.00  -  £360.71

the t.amp
s-100 mk ii



the t.amp S-100 MK II amplifier - 2x 100 watts/4ohm, 2x 65 watts/8ohm. Inputs on XLR and j...

€ 135.00  -  £125.18

the t.amp
e-400



the t.amp E-400 stereo amplifier - output power: 2x 190W @ 4 ohms, 2x 120W @ 8 ohms (@1kHz...

€ 118.00  -  £109.42

the t.amp
ta 2400 mk-x



the t.amp TA 2400 MK-X power amplifier - 2x 1200W/4 Ohms, 2x 650W/8 Ohms RMS, 19", input s...

€ 344.00  -  £318.98

the t.amp
tsa 4-700



the t.amp TSA 4-700 Power Amplifier - 4x 810W / 4Ohm, 4x 490 W / 8Ohm, 4x 930W /2Ohm, 2x 1...

€ 389.00  -  £360.71

the t.amp
proline 3000



the t.amp Proline 3000 professional power amp - 2x 1500W @ 4 Ohms, 2x 1100W @ 8 Ohms, 2x 1...

€ 589.00  -  £546.17

the t.amp
e-1500



the t.amp E-1500 stereo amplifier - output power: 2x 1430W into 4 Ohms, 2x 950W into 8 ohm...

€ 266.00  -  £246.66

the t.amp
e-1200



the t.amp E-1200 stereo amplifier - output power: 2x 1200W into 4 Ohms, 2x 800W into 8 ohm...

€ 225.00  -  £208.64




Hot Deals - PA Packages!

Here's some PA-ware 'Hot-deal' starter systems to get you going!


ld systems
maui 28 g2



LD Systems Maui 28 G2, compact Plug and Play Wave System for Monitor and PA application, f...

€ 922.00  -  £854.96

bose
l1 model ii/b2



Bose L1 Model II with B2 Sub-Module, Portable Line Array System, Spatial Dispersion loudsp...

€ 2,175.00  -  £2,016.86

bose
l1 compact



Bose L1 Compact, Portable Line Array System, Spatial Dispersion loudspeaker technology del...

€ 822.00  -  £762.23

ld systems
dave 10 g3



LD Systems Dave 10 G3 -, set consists of 1x 10" sub (150W, 45-150Hz. Dimensions: 345 x 430...

€ 444.00  -  £411.71

ld systems
maui 5 go bundle



LD Systems Maui 5 Go Bundle containing...

€ 699.00  -  £648.17

ld systems
maui 11 mix



LD Systems Maui 11 Mix, compact Plug and Play Wave System for Monitor and PA application, ...

€ 469.00  -  £434.90

ld systems
maui 11 g2



LD Systems Maui 11 G2, compact Plug and Play Wave System for Monitor and PA application, C...

€ 666.00  -  £617.57

the box
pa302 a bundle



the box PA302 A Bundle containing...

€ 511.00  -  £473.84

ld systems
dave 10 g3 bundle



LD Systems Dave 10 G3 Bundle containing...

€ 518.00  -  £480.33

the box pro
achat 110ma / 112 sub a aktiv



the box pro Achat 110MA / 112 Sub A Aktiv contains:...

€ 1,159.00  -  £1,074.73




Hot Deals - Mixers!

Here's some PA-ware 'Hot-deal' mixer examples!... main mixers, monitor mixers, powered mixers etc!


behringer
x32 compact



Behringer X 32 Compact, 32-Channel 16-Bus Digital Total Recall Live/Recording Mixing Conso...

€ 1,239.00  -  £1,148.91

behringer
x32



Behringer X32, 32-Channel 16-Bus Digital Total Recall Live/Recording Mixing Console, 32 ch...

€ 1,638.00  -  £1,518.91

behringer
x32 rack



Behringer X 32 Rack, 19" 3 U Mixer with 32 Channels, 16 Mic Preamps, 8 XLR Outputs, remote...

€ 755.00  -  £700.10

behringer
sx2442fx



Behringer SX 2442FX Eurodesk 24-channel mixer with 16 mic inputs, Xenyx mic preamps, neo...

€ 379.00  -  £351.44

midas
m32 live



Midas M 32 Live, Digital Mixer, 32 Mic Inputs, Midas pre-amps, 16 XLR Outputs, 8 DCA and 6...

€ 3,690.00  -  £3,421.72

behringer
x32 producer



Behringer X 32 Producer, 32-Channel 25-Bus Digital Total Recall Live/Recording Mixing Cons...

€ 1,077.00  -  £998.69

allen & heath
ar2412



Allen & Heath AR2412, 24 XLR Mic / Line Inputs, 12 XLR Line Outputs, Cat 5 In/Outputs, Avi...

€ 929.00  -  £861.45

allen & heath
qu-16 chrome



Allen & Heath Qu-16 Chrome, Digital Mixer for Live and Studio, 16 Mono Inputs (TRS + XLR),...

€ 1,550.00  -  £1,437.30

midas
m32r live



Midas M 32 R Live, Digital Mixer, 16 Mic Inputs, 8 XLR Outputs, 8 DCA and 6 Mute Groups, 2...

€ 1,921.00  -  £1,781.33

behringer
x32 compact stagebox bundle



Behringer X32 Compact Stagebox Bundle contains:...

€ 1,985.00  -  £1,840.68

allen & heath
sq6



Allen & Heath SQ6, 48-channel digital mixer, 19" rack mountable, with 96 kHz FPGA-processi...

€ 3,177.00  -  £2,946.01

behringer
powerplay p16-m personal mixer



Behringer Powerplay P16M Personal Mixer, 16 channel Mixer for all musicians, desk top hous...

€ 199.00  -  £184.53

behringer
pmp4000



Behringer PMP 4000 - 16-channel powered mixer (8x mono, 4x stereo), 2x 800W/4 Ohms (1600W ...

€ 319.00  -  £295.80

behringer
pmp6000



Behringer PMP 6000 - 20-channel powered mixer (12x mono, 4x stereo), 2x 800W/4 Ohms (1600W...

€ 429.00  -  £397.80

behringer
x air xr18



Behringer X Air XR18, 18 channel digital mixer Remote control via built-in router with WIF...

€ 399.00  -  £369.99

behringer
xenyx x1204 usb



Behringer Xenyx X1204 USB - 12-channel mixer with 60mm faders, 4x mic inputs with 48V phan...

€ 139.00  -  £128.89

behringer
x-touch one



Behringer X-TOUCH ONE, universal DAW remote control unit for studio and live application, ...

€ 129.00  -  £119.62

behringer
xenyx 1202fx



Behringer Xenyx 1202 FX 12-channel mixer - 4 mic inputs with 48V phantom power, 24-bit FX ...

€ 75.00  -  £69.54

behringer
xenyx 802



Behringer Xenyx 802 8-channel mixer - 2 XLR mic inputs and 2 stereo line inputs with 3-Ban...

€ 49.00  -  £45.43

soundcraft
ui24r



Soundcraft Ui24, 24-channel mixing console with integrated s tagebox and DSP, parallel mul...

€ 699.00  -  £648.17




Hot Deals - Deejay Gear!

Here's some PA-ware 'Hot-deal' DJ-mixer, turntable & accessory examples!


magma
multi workstation xl plus



Magma Multi Workstation XL Plus, heavy-duty road case for large Dj Controllers and Laptop ...

€ 138.00  -  £127.96

glorious
workbench white



Glorious Workbench white, Production workstation for work at home or project studios, extr...

€ 289.00  -  £267.98

glorious
workbench black



Glorious Workbench black, Production workstation for work at home or project studios, extr...

€ 289.00  -  £267.98

denon
dn-f350



Denon DN-F350 Solid State Media Player, 19 "format, with Bluetooth 4.0 streaming, SD / SDH...

€ 259.00  -  £240.16

mwm phase
essential



MWM Phase Essential, the first wireless controller for DVS (Digital Vinyl System), 1 Phase...

€ 279.00  -  £258.71

ortofon
concorde mix mkii twin



Ortofon Concorde Mix MKII Twin, universal spherical stylus, especially for Scratching and ...

€ 149.00  -  £138.16

magma
ctrl case mpk mini



Magma CTRL Case MPK MINI, fits Akai MPK Mini2 and Akai MPK Mini Play, crafted from 5 mm th...

€ 39.00  -  £36.16

denon
dn 700cb



Denon DN 700CB, media player with network and RS-232C connector, intuitive web-Browser- an...

€ 479.00  -  £444.17

audio-technica
at-xp7



Audio-Technica AT-XP7, Moving Magnet DJ-Cartridge, excellent Tracking ability, designed fo...

€ 118.00  -  £109.42

knosti
lp cleaning fluid



Knosti LP Cleaning Fluid - for Knosti cleaning set. 1 Ltr...

€ 15.30  -  £14.18

denon
dn-300r mkii



Denon DN-300R MKII, solid state SD/USB audio recorder, records WAV and Mp3 files to SD and...

€ 229.00  -  £212.35

numark
ndx 500



Numark NDX 500 Single CD Player/Software Controller - plays mp3 CDs, CDs and CD-Rs. Master...

€ 219.00  -  £203.07

denon
mc7000



Denon MC7000, 4 - Channel DJ Controller MC7000 for Serato DJ, Simultaneous connection of 2...

€ 949.00  -  £880.00

denon
dn-300c mkii



Denon DN-300C MK II, CD/USB Player, Slot-In CD - Drive, USB Audio Player, USB plays MP3 au...

€ 209.00  -  £193.80

numark
scratch



Numark Scratch, 2-channle Scratch Mixer for Serato DJ Pro with DVS-license, Serato NoiseMa...

€ 489.00  -  £453.44

allen & heath
xone 96



Allen & Heath Xone 96, analogue DJ mixer, 6 + 2-channel layout, 4 band EQ, dual Xone:VCF f...

€ 1,529.00  -  £1,417.83

allen & heath
xone 23



Allen & Heath Xone 23, Pro DJ Mixer, 4 Inputs, 1 x mic, 2 x phono/line switchable, 4 input...

€ 249.00  -  £230.89

the t.mix
201-usb play



the t.mix 201-USB Play, 2 Channel DJ Mixer with USB/SD/Bluet ooth Player, 2 Stereo Ins (Ph...

€ 88.00  -  £81.60

numark
party mix



Numark Party Mix, 2-Channel DJ controller with Integrated sound card, audio outputs (2 RCA...

€ 79.00  -  £73.25

numark
mixtrack platinum



Numark Mixtrack Platinum, DJ Controller,2-Deck All-In-One DJ Controller mit Jogwheel Displ...

€ 195.00  -  £180.82

numark
mixdeck express black



Numark DJ Mixdeck Express Black DJ Controller, Complete System with CD/MP3 DJ decks, mixer...

€ 511.00  -  £473.84

mixars
cut mkii



Mixars Cut MKII, 2-channel scratch mixer; GALILEO Kallisto Crossfader; 3-band EQ per chann...

€ 99.00  -  £91.80

the t.mix
401-usb play



the t.mix 401-USB Play, 4 Channel DJ Mixer with USB Player, 4 Stereo Ins (2x Phono/Line, 1...

€ 88.00  -  £81.60

the t.mix
402-usb play



the t.mix 402-USB Play, 4 Channel DJ Mixer with USB Player a nd Interface, 4 Stereo Ins (1...

€ 198.00  -  £183.60

reloop
spin



Reloop Spin, Portable Turntable, Out of the Box: Comes with 7 '' Scratch Vinyl, Pre-Assemb...

€ 225.00  -  £208.64

american audio
ttd 2400 usb



American Audio TTD 2400 USB - direct drive turntable with US B audio interface, line and p...

€ 135.00  -  £125.18

audio-technica
at-lp120-usbhc



Audio-Technica AT-LP120-USBHC, direct drive turntable with Line out and USB-connector, cas...

€ 238.00  -  £220.69

tascam
202 mkvii



Tascam 202 MKVII; Dual Tape Deck with USB output; record, pl ay back and parallel recordin...

€ 488.00  -  £452.52




Hot Deals - Accessories!

Here's some PA-ware 'Hot-deal' accessory examples!


apart
micpat-d



Apart MICPAT-D, table Type dynamic Micropone with toggleswitch ( toggle switch : talk - of...

€ 89.00  -  £82.52

fun generation
universal stand



Fun Generation Universal Stand, dimensions: load platform: 720 mm to 1007 mm, depth: 395 m...

€ 29.00  -  £26.89

behringer
s32



Behringer S32 Digital Snake, 32 Inputs, 16 analog, servo-balanced XLR outputs, AES50 netwo...

€ 755.00  -  £700.10

klark teknik
kt-2a



Klark Teknik 2 A, classic tube compressor / leveling amplifier, completely discrete signal...

€ 319.00  -  £295.80

behringer
s16



Behringer S16 Digital Snake, 16 Inputs, 8 analog, servo-balanced XLR outputs, AES50 networ...

€ 511.00  -  £473.84

behringer
x-touch



Behringer X-Touch, Universal DAW Remote Controller for Studio and Live applications, Suppo...

€ 379.00  -  £351.44

midas
dl 32



Midas DL32 Digital Stagebox with 32 In- and 16 Outputs, 19", 3HE, AES50 Netzwerk (Klark Te...

€ 1,739.00  -  £1,612.56

gator
g-mixerbag-1306



Gator G-Mixer Bag-1306, carrying bag for accessories and for all consoles of X-Air series,...

€ 29.00  -  £26.89

behringer
powerplay p2



Behringer Powerplay P2, ultra-compact personal in-ear monitor amplifier, XLR and TRS input...

€ 30.00  -  £27.81

behringer
x-touch compact



Behringer X-Touch Compact, Universal Remote Control for DAWs, Instruments, Eff ects and Li...

€ 269.00  -  £249.44

thomann
9v 6lr 10pc



Thomann M9V 6LR 10pc, 9V alkaline block battery, cadmium free, 10 pieces...

€ 14.70  -  £13.63






 

we have a new pa section with lots of speaker plans!
click to go there



OK...This section is just starting.... It contains basic info about PA stuff & theory etc....and I'm going to start adding some speaker cabinet plans that you can build to get a cool system together on a budget for gig's & parties etc....Already there is one cabinet plan posted up...It's a full range cabinet ideal for building up a modular system, as you can make more cabs, and stack them as you go....As time goes on, I'll add plans for bass-bins, and other dedicated cabinets for Bi & tri-amped systems.....so....on with the show !


PA SYSTEMS INTRO
Well here we are.....PA is short for 'Public Address System', and comes originally from army bases, and factories/plants etc, before the advent of amplified gigs & clubs.Incidently, just a bit of historical stuff here: The first amplified rock concert given in the UK was by Tommy Steele believe it or not !!....er....

PA systems can be as simple as a mixer going into a pair of powered speaker cabs, all the way up to sodding great 100.000 watt modular systems. Whatever the system, the end desired result is to get the sound to the listener at an even level wherever they are positioned in the venue.

Speaker cabinets are designed to provide the loudest and most balanced sound for a given amplifier input, and utilise different designs to do this depending on the cabinets intended job. Matching the speakers to the cabinet volume & resonance is one criteria, and cabinet design can cause the outgoing sound to be dispersed widely at a short distance for venues such as a small club, or to project the sound a long distance, such as when one wishes to project a sound to the center and back of a large concert hall or venue. Getting the right cabinet design & positioning makes all the difference.


SOUND DISPERSAL

Ok..... In a big venue, obviously the requirements for a PA sound system are going to be different to that of a system in a small club, even though the volume may actually be higher in the club in proportion to the system used by the large venue.

Above, is a picture of a typical large venue system. The main PA contains the Bass stacks.... As you probably know, bass sounds are omni-directional, we dont really percieve them as coming from a directional source as much as higher frequencies.....So the bass bins radiate bass out and around the venue....

The lower & upper mid-range stacks, and tweeter/treble units in the main PA are 'LONG-THROW'....designed to penetrate to the back of the hall as well as possible....but this can leave a dead spot around the center, so to re-inforce the signal at the back & center of the hall, overhead 'Flyers' of mid-range & treble/tweeter units are 'Flown' above the main PA angled downward..... These units' cabinets and treble units are of a 'SHORT-THROW' design, and fill out the sound nicely, creating a reasonable balance throughout the venue !

For smaller live venues the main PA would be comprised of soley 'Short-Throw' units....Medium venues would be well covered by a mix of Long & Short-throw units.

On this picture, you can see a typical club efficient system....The bass-bins pump out bass to the floor, whilst the top end and mid-range is handled by 'Flown' units suspended around the dance-floor. Treble end frequencies are easily absorbed by soft matter such as humans !!.....so by flying the top-end units above the floor angled downward, and then balancing the mix between Bass and Mid/Treble end with an active cross-over or graphic, you can keep the music crisp and pumping. I have to say, that this is an art not too difficult to achieve, yet it seems to elude alot of club owners..... The amount of times my friggin' ears get wrecked by over-the-top treble ended systems really shags me off.....which is why I'm usually dancing somewhere around the back or sides of the main dance-floor, or right up front with my head in the bass-bins....in fact, anywhere to escape the horrible sizzling, ear-frying treble !!


As I said above....Higher frequencies are more directional, and become more so the higher you go...... The directional caharacteristics of a sound is known as the 'BEAM' as for a car head-light........and Tweeters are the most directional of all....

'Bullet' tweeters give great projection over distances, but have a very narrow conical 'Beam'.....You can use 'Slot' Tweeters as an alternative, which give much greater width of dispersion, but don't carry the treble sound very far.



Horizontal dispersion with 'Bullet' tweeters (Conical H.F pattern 'Long-Throw')


Horizontal dispersion using 'Slot' tweeters (Broadbeam HF pattern 'Short-Throw')


DIFFERENT CABINETS-TYPES OR 'ENCLOSURES'

Ok......outside of the odd mega-complex design theories out there, most cabinets or 'Enclosures' fall into 3 basic types:

  • SEALED BOX (infinate Baffle)
  • TUNED REFLEX
  • HORN LOADED

SEALED BOX / INFINATE BAFFLE
The simplest of all, being a straight.....er....sealed box !!....Just like your average hi-fi speaker. Because there is no way for the air behind the speaker to escape, this design offers the greatest 'damping' effect on the back of the speaker cone. This can be good to get the most out of the speakers power handling, but usually bottom end bass-response is lower than with other designs.... So to build a bassy sealed-unit requires a damned big box !!!

REFLEX ENCLOSURE
Ok.....these units add an open port or vent to allow air to escape from inside the box....The size of the port is critical to the 'Tuning' of the system. What you get with a reflex design, is greater bass from smaller box sizes, so this technique is often used by small hi-fi manufacturers to get some 'Oooomph' into the bottom end of their speakers.

HORN LOADED
These units are used for bass and bottom mid only, there are various designs such as the 'W' Bin......and they are all extremely complicated to design.....but basically, the inside of the cabinet contains chambers and tunnels, often combined with reverse mounted or angle-mounted drivers, designed to 'Throw' the bass out over distances. They are used where good high-frequency extended bass response and excellent directivity is required for large venues.



So.... That's a few basics.....To build up your own system, it's probably best to begin with 'Full-Range' modular cabinets.... 'Full-Range' means the cabinets contain Bass, Mid & Treble speaker units, kinda like a massive hi-fi speaker..... you can multiply these as you expand by simply lining them up side by side.....All you need to go with the Left & Right cabs is a decent stereo power amp, say between 250 & 500 watts per channel, and your decks & mixer !!

If you want to expand further from there, you can add dedicated bass-bins, and switch to a 'Bi-Amped' system.....



BI-AMP SYSTEM

Right.....Bi-amping......nope, it ain't an amp that likes to shag other amps of the same gender !!..... It simply means you split the signal coming from the mixer into 2 frequency ranges.....

Bass / Lower-mid & Upper-mid / - AND - Treble...... simple huh ?... Most hi-fi type & nearfield type speakers with a bass/mid & treble tweeter split off the treble to the tweeter at around 10K... it's....but how d'you do that ?........Well, you need to use a cross-over unit...


CROSS-OVERS

Ok.......There are two types of cross-over.......Passive & Active.....both types split the incoming signal into component parts of different frequencies according to the units design and intended use. The cross-over allows the frequencies in a full-range incoming signal to be distributed to the correct type of speaker that can utilise the signal best by operating within it's intended bandwidth.
The other function of the cross-over, is to protect against speaker damage that can occur when low frequencies are fed to midrange & treble units.

PASSIVE
A passive cross-over, is the type as you have inside your hi-fi speakers. It is a bunch of electrical components mounted on a curcuit-board that need NO power supply.

ACTIVE
An active cross-over is an electronic device, (usually rack-mounting), which is connected between the mixer & power amps. The frequency spectrum is split before it is amplified, and each loudspeaker recieves it's own correct bandwidth of sound delivered by it's own dedicated amp.


Ok....Crossover points are to an extent determined by the speaker cabinet design, but are mainly influenced by the type and design of speakers used.... But here are the usual cross-over frequency ranges for the various typical system configurations.......

2 way system bass to treble 3 kHz - 5 kHz
3 way system bass to mid
mid to treble
500 Hz - 1.5 kHz
3 kHz - 5 kHz
4 way system bass to low-mid
low-mid to mid
mid to treble
200 Hz - 400 Hz
800 Hz - 1.5 kHz
3 kHz - 5 kHz
super-tweeter - 5 kHz - 10 kHz











ROLL YER OWN !!

Oh yes !!........Cos what you really want to know is...."How the fuck do I make one"....correct ??......well, here's some stuff just for you i scanned from an old Fane book I got at a car-boot sale for 50p.....I have added a plan for a basic 'Full-Range' enclosure that can be used to build a cool system. All you have to do is build 2 of these babies to get off the ground.... You can then upgrade by building another pair so you have 4 cabinets in total.... One pair with a decent stereo power amp should be plenty fine for some serious party sounds, then just add more units......Each cabinet can be made from one sheet of 8' X 4' timber.....so before you click for the plans, read this page about construction methods.... I've done alot of wood & construction stuff ...even a few studio's... the notes & construction tips are taken from my own woodworking experience based on looking at the plans....

Lastly I'd like to add... I'm not an acoustic's 'tech-bot' ... These may not be 'State-of-The-Art' etc... 'latest design technology' etc... but that aint the essence of any TRUE 'Dance' music vibe to me... For me it ALL comes from squat-parties & warehouse-parties, house-parties, sounds, community-center jams, street-jams, small clubs etc etc... These boxes follow the fixed laws of acoustics well enuff for that scene... they just aint like for your Tina-Turner concert tho !!...

So I just thought these plans would be useful to bang up some boxes of a weekend for those kinda activities... Fuck!.. when we were starting we had like some crappy 200 watt DJ-unit with speakers ting... big but crappy with an amp... we thought it was superb, you could blast anyones cheezy hi-fi away for parties, so you get asked to do parties !! :-) .. THAT is the whole fuckin idea of having a little sound.. serious... some people start off at school or college with a few crappy but LOUD boxes they knocked up, and play parties after parties, and in a few years they are doing a club etc... Thinking back, I can remember the sound of that system we had... it was well off, and boxxy as hell !!, but it had BASS & THUMP!!... & it was loud...

Boxes like the ones these plans will make are a BIG step up from that kit, and in quantity, adding units together, these designs can fuel a decent sound just fine well up to playing house-parties, smaller-clubs & warehouse gigs etc... and when you go to those sort of gigs this is the sort of boxes you hear :-)


CLICK HERE FOR IMPORTANT CONSTRUCTION TIPS

JBL - THE MOST COMMONLY ASKED QUESTIONS ABOUT BUILDING ENCLOSURES







CABINET PLANS


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
















CLICK FOR PA/LIVE/GIGGING FORUM

We'd like to see more use of the PA/Gigging/Live forum for questions and chatting, so we're adding in a Link here 'cos we just realised there is no link in the PA-Section (*sigh*)

There's so little PA resources on the www, so feel free to join the forum and lets try and build it up - With our forums you can add file-attachments to forum posts if you are registered, so plans or pictures etc can be added with posts!!

Alternatively, leave some user comments on this page via the form below...


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ATTENTION ALL SMARTASSES!! - BEFORE YOU BOTHER POSTING YET ANOTHER TIRED COMMENT SHOWING HOW CLEVER YOU ARE TO POINT OUT YET AGAIN (YAWN) THAT SOME OF THE INFO ABOVE IS FROM A FANE BOOK, WE ALREADY KNOW THAT OK... OK.. IF YOU HAVE SOMETHING USEFUL TO CONTRIBUTE DO SO, IF NOT, GO AWAY AND CRITICISE THE WIFE'S COOKING OR WHATEVER YOU DO TO PASS THE TIME FEELING SUPERIOR.

Some of the images above & some of the plans are indeed scanned from an old FANE book found at a car-boot sale, big deal!, Fane can always sue me, but as it's free promo for them I doubt they will. Also, I could create the same drawings myself all over again, I did work for years on Live rigs so it's hardly a problem to do so. But at the time this page was started it was just easier to scan their old images than to do the same stuff all over again. However, plenty of other work has gone into this section, and sadly it is VERY hard to find PA info online for noobs, so what is added here is in the interest of helping people. Now carry on and post any useful comments or requests for whatever you want.





CLICK FOR PA/LIVE/GIGGING FORUM

We'd like to see more use of the PA/Gigging/Live forum for questions and chatting, so we're adding in a Link here 'cos we just realised there is no link in the PA-Section (*sigh*)

There's so little PA resources on the www, so feel free to join the forum and lets try and build it up - With our forums you can add file-attachments to forum posts if you are registered, so plans or pictures etc can be added with posts!!

Alternatively, leave some user comments above...


CLICK FOR PA/LIVE/GIGGING FORUM