background image

W28A

 

 

bi-amped, active loudspeaker system

Specifications

Speaker system

 Components:

- bass frequencies

 

Woofer  Mod.  15NDL76 - 8

Ω

 

Nominal diameter  

 

 

Frequency range

 

Power capacity 

 

 

Sensitivity 

 

 

 

 

 

Rated impedance  

 

Net weight 

 

 

 

 

 

TThiele & Small Parameters 

 

fs 

 

 

 

 

 

 

Re 

 

 

 

Qms 

 

 

 

 

 

 

Qes 

 

 

 

 

 

 

Qts 

 

 

 

 

 

 

Vas 

 

 

 

 

 

 

η

 

 

 

 

 

 

B.l 

 

 

 

 

 

 

SD 

 

 

 

 

 

 

Xmax 

 

 

 

 

 

 

- mid/high frequencies

 

Exponential horn (ME60)    

         

Nominal coverage:

         

Cutoff frequency:

         

Throat diameter:

         

Material:

         

Dimensions: 

         

Net weight:

         

 

Driver (DE1050) 

         

Throat diameter:

         

Nominal impedance  :

         

D.C resistance: 

         

Power capacity:

         

Sensitivity:

         

Frequency range:

         

Voice coil diameter:

         

winding material:

 

Diaphragm material

 

Inductance:

         

Flux density:

         

Overall diameter: 

         

Depth:  

         

Net weight: 

 Impedance

 

Frequency response

 

Sensitivity (1W / 1m)

 

Max SPL

Built-in electronic  crossover:

 

 

crossover frequency  

 

slope

Built-in power amplifiers

 

Max. output power 

 

- bass

 

 

 

 

 

- mid-high

 

Frequency response (bass + mid-high)

 

Input impedance

 

Input sensitivity       

 

Noise referred to input

 Power supply (Europe and Asia)

 Power supply (USA and Canada)

 Fuse (Europe and Asia)

 Fuse (USA and Canada)

Connections

Construction and finish
Dimensions (w x h x d)
Weight 

2-way bass reflex

custom designed to Montarbo specifications
2 x 15" high efficiency woofers, with neodymium magnet    

15"
40÷2000Hz  
1000W       
100dB     
8 Ohms         
4,6 Kg    

37Hz
5,3 Ohms
4,5
0,24
0,22
95dm

3

4,1%
22,5Tm
855cm

    

±7mm

2" neodymium driver coupled with a 
constant directivity horn 

(HxV) 60°x40°
800 Hz
50 mm (2")
cast aluminium
270x237x202 mm
2 Kg

         

50 mm (2") 
8 ohms
8,3 ohms
300 Watt RMS
109,5 dB
0,5 ÷ 20kHz
100 mm (4")
aluminum
titanium
0,14 mH
1,95 T
154 mm
85mm
3,6 kg

4 ohm (bass) / 8 ohm (mid/high)
45Hz ÷ 20kHz
- bass: 45Hz ÷ 900 Hz
- mid/high: 900Hz ÷ 20kHz
106 dB SPL
135 dB

900Hz  
24dB/Oct 

2  MOSFET (class AB) with 2 independent processors
900 + 300 W 

900 W continuous

 

(4 ohms, @ 0,1%THD)

  /  

1200 W peak

300 W continuous

 

(8 ohms, @ 0,1%THD)

  /   

350 W peak

Forced cooling provided by a thermostatically controlled 
low turbolence fan.
35Hz ÷ 25kHz +0/-1dB  
10KOhms (balanced)
0dB (775 mV)
- 108dB (A weighted) 

230 V.A.C.  50÷60 Hz
117 V.A.C.  50÷60 Hz
F 6,3 AL
F 10 AL

Balanced male (OUT) and female (IN) XLR inputs 
wired in parallel.
Phenyl-glued multiply birch; polyurethane paint
48 x 109,6 x 40 cm
50,5 Kg

APPENDIX

14

Summary of Contents for W28A

Page 1: ...bi amped active loudspeaker system W28A...

Page 2: ...mped active loudspeaker system APPENDIX technical speci cations response curve block diagram connectors connection example installation examples spare parts ITALIANO ENGLISH 3 7 8 12 13 19 14 15 15 16...

Page 3: ...stesso Collegare questo apparecchio esclusivamente ad una presa di corrente dotata di contatto di terra rispondente alle norme di sicurezza vigenti tramite il cavo di alimentazione in dotazione Nel c...

Page 4: ...estazioni progettato espressamente per rispondere alle situazioni pi impegnative sia del musicista che del service professio nale rivelandosi ideale per applicazioni che richiedono alta pressione sono...

Page 5: ...B per un rendimento ottimale consigliamo di regolare entrambi questi due volumi al massimo in senso orario 4 Interruttore di rete I 0 2 3 4 8 5 Ground lift GND LIFT scollega la massa dell ampli ca tor...

Page 6: ...e mixer accertarsi che tutti gli interruttori di rete siano spenti 0 In tal modo si eviteranno fastidiosi rumori e picchi di segnale talvolta pericolosi per le casse stesse Collegamento in parallelo...

Page 7: ...i morsetti dell inserto possono comunque portare un cavo con li aventi sezione no a 4mm2 12AWG In lare il cavo prima nella bussola poi nel serracavo bianco per un cavo con diametro 5 11mm nero per un...

Page 8: ...ain Before connecting this product to the mains supply always make sure that the voltage on the mains outlet corresponds to that stated on the product This product must be connected only to a grounded...

Page 9: ...provide outstanding sound performance in the most diverse situations W28A is ideally suited to applications requiring high sound pressure levels maximum de nition and clean sound Musicians and rental...

Page 10: ...mixer having an output level of 0dB for optimum performan ce it is advisable to set both controls fully clockwise to their maximum settings 2 3 4 8 4 Mains power switch I 0 5 Ground lift GND LIFT thi...

Page 11: ...on example at pages 16 and 17 Always use only heavy gauge high quality SHIELDED cables signal cables Always make sure that the mixer and the powered enclosures are switched off before connecting them...

Page 12: ...using an Allen wrench or soldered to the terminal Always paying attention to the symbols shown on the connector L Live correspon ding to the brown wire N Neutral corresponding to the light blue wire a...

Page 13: ...____________________ __________________________________________ __________________________________________ __________________________________________ APPENDIX APPENDIX 13 Technical Speci cations Dati...

Page 14: ...rope and Asia Fuse USA and Canada Connections Construction and nish Dimensions w x h x d Weight 2 way bass re ex custom designed to Montarbo speci cations 2 x 15 high ef ciency woofers with neodymium...

Page 15: ...W28A bi amped active loudspeaker system APPENDIX Response curve 15 Block diagram...

Page 16: ...lanciati sbilanciamento automatico Note the balanced input can accept also unbalanced connectors automatic unbalan cing Connectors 1 GND Ground 2 Hot 3 Cold IEC 268 standard BALANCED XLR MALE CONNECTO...

Page 17: ...necting the W28A active system to another W28A to another W24A W28A OUT W28A IN OUT IN Connection example OUT IN OUT IN OUT IN Connecting the W28A active system to the mixing console MIXER OUTPUT W28A...

Page 18: ...W28A bi amped active loudspeaker system Installation examples yable pole mountable APPENDIX 18...

Page 19: ...82 Griglia in acciaio A088675 A088677 Maniglia per il trasporto B01W240 B01W241 Binario per la sospensione B01W242 Anello ad incass D52W282 Pannello controlli e connessioni D10W28W Filtro D52W18T Tela...

Page 20: ...urraient se pr senter lors de l installation et de l usage de l appareil Nous sommes votre disposi tion pour d ventuels conseils et informations suppl mentaires Elettronica Montarbo srl ne peut tre co...

Reviews: