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SHOW WDA-281D Portable wireless teaching system 8" woofer & 1" tweeter 45W RMS + Wireless mic + CD MP3

เครื่องขยายแบบพกพา ลำโพง 8 นิ้ว พร้อมไมลอยแบบมือถือ+ ไมค์คลิ๊บ

Dual channel/ Frequency band:VHF 220~245MHz

80W (RMS) AC/DC12V power supply

45W (RMS) internal battery supply

 8" paper cone woofer/ 1" Tweeter

Voice priority function

Optional module :

MP3-400 module with USB/SD/MMC reader with "RECORDING" function

CD-200: CD module with MP3 reader function 

TM-100 Tuner mudule, Cassette recorder player sources selectable

GENERAL DESCRIPTION:

SHOW designs the new light weight and high power WDA-281 portable wireless teaching system.  It is built-in 8" woofer & 1" tweeter, rechargeable battery and single/ dual ch wireless system. 

Selectable input sources fit different demands of users. It can easy be used indoor/ outdoor with wire/ wireless mic. Through AC/ internal battery and generate 80W/ 45W RMS output power.

*      Front panel LED ladder displays the internal battery recharged status

*      Built-in VHF Module: WTU-211

*      Microphone option:  Handheld Mic.: VXM-298TS

*      Frequency band: 230.32~245.82MHz

*   Frequency response: 50Hz~15kHz

FEATURES:

Innovative Class-D power amplifier technology

ingle channel: VHF: WDA-281D/ WDA-281UD/ WDA-281CTD

PLL UHF: WDA-881D/ WDA-881UD/ WDA-881CTD

Dual channel:VHF: WDA-282D/ WDA-282UD/ WDA-282CTD

PLL UHF: WDA-882D/ WDA-882UD/ WDA-882CTD

Frequency band:VHF: 220~245MHz

VHF Frequency response: 50Mz~15KHz

PLL UHF: 470~900MHz (depends on applicable country regulations)

(Built-in 16 channel frequencies)

Rechargeable battery backup with 3hrs of duration after full charged

80W (RMS) AC/ 12DC Power supply

45W (RMS) Internal battery supply

8" cone paper woofer/ 1" Tweeter

MP3 readable CD player with USB reader/ Tuner/ 

Cassette internal sources selectable

Model

WDA-281 SERIES

 Item No

 WDA-281D/ 281UD/281CTD      

 Channel

 Single-channel

 Speakers

 Woofer:8" cone paper, 4ohm

 Tweeter:1" , 6ohm, 25W

 Output power

 AC power supply /

 External 12V dc: 80W (RMS)

 Internal battery supply

 45W  (RMS)

 Frequency response

 50~15KHz( ± 3dB)

 S/N Ratio

 Mic 5dB      Line0dB

 Input/sensitivity 

 Mic:-50dB       Line:-20dB

 T.H.D.

 %

 Controls

 1 master volume control 

 treble/bass tone control 

 individual volume control for each module and input

 Dimensions

 277(W) × 256(D) × 415(H)mm

 (8.5'' × 10.87'' × 14.96'' )

 Weight

 15.5kg(Approx)