TOA / WA2800IF

This is a portable wireless amplifier with USB audio interface. It can be used as a microphone and speaker for web conferencing applications by connecting it to a PC or tablet with a USB cable.

■Features
Portable wireless amplifier with a 22 W rated output digital amplifier, 4-power supply system, and Bluetooth unit. Sound sources can be played from smartphones and other devices via Bluetooth connection. One WTU-1820 crystal-controlled PLL synthesizer-based 800 MHz band diversity tuner unit is built in, and a wireless microphone (sold separately) can be used. A total of two additional diversity tuner units can be added, and the WA Link function allows two WA-2700/2800 series wireless amplifiers to be connected, mixing the sound and expanding the sound from each amplifier.

Product Specifications
Power source: AC100V 50/60Hz
　　　DC power source: AAA alkaline batteries x 10 (15V DC)
　　　Rechargeable nickel-hydrogen battery WB-WA2000 (sold separately)
Rated output: AC: 22W (main unit or external speaker alone)
　　　　　18W+18W (when main unit and external speaker are used simultaneously)
　　　　　DC: 18W (when main unit or external speaker is used alone)
　　　　　15W+15W (when main unit and external speakers are used simultaneously)
Maximum output: 30W (AC, when main unit or external speaker is used alone)
Power Consumption/Current: AC: 67W (when main unit and external speaker are used simultaneously, rated output)
　　　　　　　　AC: 25W, DC: 960mA (when main unit and external speaker are used at the same time, according to the Electrical Appliance and Material Safety Law)
Reception frequency: 806.125-809.750 MHz (selected from 30 B-type waves)
Battery life (*1): AAA alkaline batteries: approx. 15 hours, NiMH rechargeable batteries: approx. 12 hours
Frequency response: 50Hz - 15kHz (+1dB to -3dB)
Distortion: 1% or less (at 1 kHz 10 W output)
Sound quality control: Scene mode (language study, dance, speech, standard)
Input: Wireless Microphone　
　　　Wireless 1, 2, 3 *One of the circuits is used with Bluetooth unit (sold separately)
　　　Wired Microphone　
　　　Wired Microphone 1, 2: -48dB(*2) 600Ω unbalanced φ6.3 horn jack (2P)
External input: -10dB(*2) 5kΩ unbalanced RCA pin jack
　　　　　-22dB(*2) 2kΩ unbalanced Stereo mini jack
　　　　　Stereo signals are mixed and output in mono.
Output: Speaker
　　　Main unit speaker: 20cm double cone full range + tweeter
　　　External Speaker: 4-16Ω Rated input 22W or more Push terminal
　　　Switchable between “simultaneous use of external and main speakers” or “use of external speaker alone
　　　Line Output: 0dB(*2) 5kΩ unbalanced φ6.3 horn jack (2P)
Input/Output: WA link unbalanced φ6.3 horn jack (2P)　
SN ratio: 70 dB or better (rated output ratio)
Antenna system: Built-in antenna
Tuner unit: WTU-1820, WTU-D2810, WTU-BT01: 3 units in total (1 WTU-1820 unit built-in) *WTU-BT01 is limited to 1 unit
USB audio I/F section: Connection terminal: USB2.0 TYPE-C
　　　　　　　　　　　　　Audio format (ADC/DAC): PCM 16 bit 44.1/48 kHz sampling
　　　　　　　　　　　　　Devices that do not support USB OTG cannot be connected.
　　　　　　　　　　　　　*USB cables dedicated for charging cannot be used. Use a USB cable with data transfer function.
Operating temperature range: -10 °C to +50 °C (AC operation, when using on-board battery)
　　　　　　　0 °C to +50 °C (when using alkaline batteries or nickel metal hydride rechargeable batteries)
　　　　　　　0 °C to +40 °C (when recharging nickel-hydrogen rechargeable batteries)
Operating humidity range: 30% to 85%RH (with no condensation)
Finish: Front center: Black (Munsell N1.5 approximate color) paint
　　　Others: ABS resin, cool gray (Munsell N8.5 approximate color)
Dimensions: 298(W) x 460(H) x 220(D) (with handle retracted)
Weight: 5.6 kg
Accessories: dust cover 1, color mark 1, screwdriver for setting 1
Sold separately:
Rechargeable nickel-hydrogen battery: WB-WA2000
Accessory socket connection cable: YR-WA2000
Device connection cord (for WA link): YM-1410 (2 m), YM-1420 (5 m), YM-1430 (10 m)
*If the length exceeds 10 m, please prepare the cord separately. The maximum length is 20 m.
Diversity tuner unit: WTU-1820 (analog), WTU-D2810 (digital)
Bluetooth unit: WTU-BT01
*Wireless microphones must be analog for the WTU-1820 and digital for the WTU-D2810.
(*1) At 25 ℃ with a brand new battery. (*1) Varies depending on the condition of use of the unit.
(*2) 0 dB=1 V
(*3) Varies depending on the operating environment.