Ovation ™ Amplifier Receiver Mixer

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.

• 4 AUDIO INPUTS
• 2 MICS
• RS-232
• SECURITY ALERT
• FIRE ALARM
• PAGE MUTE

Features

• 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
  • Assistive Listening System: 3.5 mm with gain control – rear 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

FRONT PANEL

1. Power Button Logo Indicator Light
2. MIC A Microphone Volume Control
3. MIC A Pairing Button and Indicator Light
4. MIC B Microphone Volume Control
5. MIC B Pairing Button and Indicator Light
6. DVD Input Volume Control
7. Computer Input Volume Control
8. Aux Input Volume Control
9. Video Conference Input Volume Control
10. Video Conference Input Port (3.5 mm)(Also suitable for Aux audio source)
11. Video Conference Output Volume Control
12. Video Conference Output Port (3.5 mm)(Also suitable for Lesson Capture)

REAR PANEL

1. Speaker Output
2. Fire Alarm Mute Input
3. Page Input
4. Page Sensitivity Control
5. Page Input Voltage Selector
6. ALS Output (3.5 mm) & Gain Control
7. Five Band Equalizer Controls
8. RS-232 Input & OFF/ON Switch
9. Security Alert Interface
10. Aux Input Port (3.5 mm) & Aux Mic/Line Input Level Selector; Mic: -40dB/Line: -10dB
11. Computer Input Port (3.5 mm) / Computer Anti-Hum ON/OFF Switch
12. DVD Input Ports (3.5 mm)
13. External Pairing Control for OP-10 Wall Mount Control Panel
14. 5 Volt USB Output for chargers
15. Power Input: 19 VDC, 3.5 A