·          Cung cÊp thªm 4 ®­ưêng vµo audio t­ư¬ng tù. Với 2 ®­ưêng vµo cho phÐp lùa chän gi÷a kiÓu line vµ microphone. Hai ®­ưêng vµo line cßn l¹i cho phÐp kÕt nèi theo kiÓu mono hoÆc stereo tuú ý.

·          Thªm 8 ®­ưêng vµo ®iÒu khiÓn, ®­ưîc gi¸m s¸t vµ g¸n c¸c møc ưu tiªn kh¸c nhau.

·          4 ®­ưêng ra audio t­ư¬ng tù.

·          5 ®­ưêng ra ®iÒu khiÓn.

·          Mµn h×nh 2x16 ký tù hiÓn thÞ tr¹ng th¸i lµm viÖc

·          Gi¸m s¸t qua tai nghe.

 

Giao diÖn

• 2 ®­ưêng kÕt nèi m¹ng hÖ thèng

 

C¸c ®­ưêng vµo Audio

 

C¸c ®­ưêng vµo line

+ KiÓu Socket              : XLR c¸i vµ Cinch c¸i cho mçi ®ư­êng vµo

+ Ph¹m vi tÇn sè                      : -3dB ë 20Hz vµ 20kHz ( ±1dB)

: 0dB ë 100Hz, 1kHz vµ 10kHz ( ±1dB)

+ TØ sè S/N                              : > 87dBA

+ CMRR                                 : > 40dB

+ XLR max. ph¹m vi vµo        : +18dBV ®Õn +6dBV

+ Cinch max. ph¹m vi vµo       : +6dBV ®Õn -6dBV

 

C¸c ®­ưêng vµo microphone

+ KiÓu Socket              : XLR c¸i

+ Ph¹m vi tÇn sè                      : -3dB ë 20Hz vµ 20kHz (±1dB)

: 0dB ë 100Hz, 1kHz vµ 10kHz (±1dB)

+ Møc vµo trung b×nh  : -57dBV

+ TØ sè S/N                              : > 62dBA víi ®é ån 25dB

+ CMRR                                 : > 40dB

+ Trë kh¸ng ®Çu vµo                : 1360 Ohm

+ Nguån Phantom                   : 12V ±1V @ 15mA

 

C¸c ®­ưêng ra Audio

+ KiÓu Socket              : XLR c¸i vµ Cinch c¸i cho mçi ®­ưêng vµo

+ Ph¹m vi tÇn sè                      : -3dB ë 20Hz vµ 20kHz (±1dB)

: 0dB ë 100Hz, 1kHz vµ 10kHz ( ±1dB)

+ Trë kh¸ng ra             : <100 ohms

+ TØ sè S/N                              : > 87dBA

- Output crosstalk : <-80dB

- XLR output signal range : +18dBV to –12dBV

- Cinch output range : +6dBV to –24dBV

- Distortion at 1kHz : <0.1%

5.7 Physical characteristics

- Mounting : Free-standing on a tabletop or mounted in a 19"

rack

- Dimensions (H x W x D) : 88 x 483 x 350 mm (19”-mounting, with brackets

without feet)

: 92 x 440 x 350 mm (table top, without brackets

with feet)

- Weight : 6.4 kg

- Colour : Charcoal grey with silver

5.8 Environmental conditions

- Emissions :According to EN55103-1 / FCC-47 part 15B

- Immunity :According to EN55103-2

- Approvals : CE / FCC

- Temperature : -5ºC to +55ºC

- Relative humidity : 15% to 90%

5.9 Rear connections

• 2 x network interfaces

• 8 x programmable control inputs

• 2 x XLR line audio inputs

• 2 x XLR mic./line audio inputs

• 2 x Cinch line audio inputs

• 2 x Cinch mic./line audio inputs

• 4 x XLR line audio outputs

• 4 x Cinch line audio outputs

• 5 x programmable control outputs

 

Ampli chÊt l­ưîng cao LBB4421, LBB4422, LBB4424, LBB4428

§  KÕt nèi m¹ng cã dù phßng nãng (khi cã sù cè ng¾t m¹ch, hÖ thèng vÉn ho¹t ®éng b×nh th­ưêng),

§  Xö lý audio cho mçi mét kªnh ©m thanh.

§  Mµn h×nh LCD 2 x 16 kÝ tù cho gi¸m s¸t,

§  Cã gi¾c c¾m tai nghe vµ ®ång hå ©m l­îng cho viÖc gi¸m s¸t ©m thanh,

§  8 ®­ưêng vµo ®iÒu khiÓn vµ 1 ®Õn 8 ®ư­êng ra ®iÒu khiÓn,

§  2 ®Õn 4 ®­ưêng vµo audio tuú theo chñng lo¹i khuÕch ®¹i c«ng suÊt,

§  1 ®Õn 8 ®ư­êng ra audio (lùa chän tõ 100V/70V/50V ra)

§  Gi¸m s¸t c¸p nèi tíi ®­ưêng vµo ®iÒu khiÓn,

§  Gi¸m s¸t khuÕch ®¹i vµ thay thÕ t¨ng ©m lçi.

§  Gi¸m s¸t ®­ưêng truyÒn ra loa,

§  §iÒu chØnh møc ©m l­ưîng tù ®éng.

§  §ư­êng vµo 48VDC cho nguån dù phßng,