OVATION 50W amp/mixer DECT 1880-1900 MHz RS232 Echo-guard
| Generelle spesifikasjoner | |
|---|---|
| Bruttovekt | N/A kg |
| Produsentens varenummer | OA-50-1880-01 |
The Ovation™ stands out in its class with the power, superior voice quality, and a feature set that supports the myriad of classroom audiovisual technologies connected to it. Users will applaud its easy-to-use interface while it is hands down, or maybe up, one of the easiest systems to set up and requires virtually no maintenance over TeachLogic’s famously long service life.
- Radio based wireless receiver (DECT), audio mixer, and integrated audio amplifier.
- Auto-reconnect when mics move out of range then return to in-range.
- Supports remote external antennae for enhanced coverage, remote mounting.
- 2 wireless microphone channels plus a 3rd wired microphone support.
- Powers 4 x 8 Ω classroom speakers.
- Video Conference Sync w/ EchoGuard™.
- > Front panel“ Conference” input & output: connects to host computer to synchronize classroom audio w/ video conference application. 3.5mm or USB audio interface with additional adapter.
- > EchoGuard™ prevents remote audio from being looped back into conference audio.
- EchoGuard can be turned on or off by selector switch.
- 4 line inputs:
- > Rear panel: 3.5 mm auxiliary input (mic or line level switch) | Rear panel: 3.5mm input | Rear panel: 3.5 mm computer input w/ anti-hum (On/Off switch) | Front panel: 3.5 mm auxiliary (Conference) input.
- Assistive Listening System (ALS) output with level control on rear panel (3.5mm).
- Connection to building paging system.
- Mutes all audio inputs to allow page to be heard (Page Muting).
- Passes page signal to classroom speakers (Page Pass Through). Note: not intended as a life safety audio transmission feature.
- Pass through feature can be turned on or off by selector switch.
- Pages pass through to Assistive Listening System and Conferencing outputs (** important for those listeners **).
- Most open and flexible system available. VOIP, 25V, 70V
- OA-50 supports teacher security alerting function from wireless microphone (OM-10).
- Remote teacher control over line input volume (control from teacher microphone).
- Fire Alarm connection: mutes all audio sources when fire alarm sounds.
- Controllable by TeachLogic or any third-party RS-232 devices for all input levels (volume up, down, and mute)
- Digital Feedback Guard (DFG): reduces any chance for audio feedback.
- Low-power standby mode (both automatic and manual activation
Specifications
| Receiver Input |
DECT 6.0 Radio, 2 mic channels |
|---|---|
| Modulation |
DQPSK (Differential Quadrature Phase Shift Keying) |
| Reception Frequencies |
1.92-1.93 Ghz DECT 6.0 |
| Frequency Planning |
Automatic; actively avoids interference for high density use; 60 talk channels |
| Antennae Options |
Full diversity; back panel or 10’ extension with magnetic mount to remote external |
| Mic Pairing Controls |
Front panel and remote, with optional OP-10 remote panel. |
| Connectivity Coverage |
2000 sq ft. |
| Amplifier Output Power |
50 W RMS at 4Ω, 2 x 24.5 W channels |
| Total Harmonic Distortion |
< 0.1% @ 1 kHz |
| Frequency Response |
15 Hz – 22 kHz, ± 3 dB |
| Line Level Inputs |
4: 3.5 mm |
| Anti-Hum Isolation Balun |
Switchable (off/on) at computer input |
| Equalization |
5-band, ±10 dB |
| S/N Ratio |
70 dB |
| Wired Mic Input |
1 aux input switchable to dynamic mic |
| Line Outputs |
Conferencing: 3.5 mm with gain control – front panel |
| Page Input |
2-pin phoenix; 4 V, 25 V or 70 V nominal; fully isolated |
| Page Input Sensitivity |
50 mV to 12.6V |
| VOIP Page Integration |
Interfaces with all VOIP system at analog level with highly sensitive low power page interface. |
| Security Alert |
Contact closing/opening, 1 or 4 pulse selectable |
| Fire Alarm |
Contact closure by fire panel mutes audio |
| Charger Output |
5 VDC, 1 A, USB-A |
| Power Supply |
19 VDC / 3.5 A CE, CSA and UL Listed |
| Dimensions | 7.5 × 8.5 × 1.75 in |
| Weight | 1.75 lbs |
