SHOW WDA-281D Portable wireless teaching system 8" woofer & 1" tweeter 45W RMS + Wireless mic + CD MP3
เครื่องขยายแบบพกพา ลำโพง 8 นิ้ว พร้อมไมลอยแบบมือถือ+ ไมค์คลิ๊บ
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Dual channel/ Frequency band:VHF 220~245MHz
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80W (RMS) AC/DC12V power supply
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45W (RMS) internal battery supply
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8" paper cone woofer/ 1" Tweeter
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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
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Frequency band:VHF: 220~245MHz
VHF Frequency response: 50Mz~15KHz
PLL UHF: 470~900MHz (depends on applicable country regulations)
(Built-in 16 channel frequencies)
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Rechargeable battery backup with 3hrs of duration after full charged
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80W (RMS) AC/ 12DC Power supply
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45W (RMS) Internal battery supply
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8" cone paper woofer/ 1" Tweeter
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MP3 readable CD player with USB reader/ Tuner/
Cassette internal sources selectable
Model
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WDA-281 SERIES
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Item No
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WDA-281D/ 281UD/281CTD
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Channel
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Single-channel
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Speakers
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Woofer:8" cone paper, 4ohm
Tweeter:1" , 6ohm, 25W
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Output power
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AC power supply /
External 12V dc: 80W (RMS)
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Internal battery supply
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45W (RMS)
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Frequency response
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50~15KHz( ± 3dB)
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S/N Ratio
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Mic 5dB Line0dB
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Input/sensitivity
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Mic:-50dB Line:-20dB
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T.H.D.
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%
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Controls
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1 master volume control
treble/bass tone control
individual volume control for each module and input
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Dimensions
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277(W) × 256(D) × 415(H)mm
(8.5'' × 10.87'' × 14.96'' )
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Weight
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15.5kg(Approx)
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Optional
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