Extron MPA 122 集成式微型功放为教室和其它要求紧凑、简约的音频解决方案应用场所的扬声器系统提供立体声放大功能.
| 可选附件 | ||
|---|---|---|
| MBB 100 | Back of Rack Mounting Kit | |
| MBU 123 | 用于 1/8、1/4 和 1/2 机架宽产品的薄型安装套件 | |
| PMK 100 | 用于 1/4 机架宽产品的杆式安装套件 | |
| PMK 300 | 用于 3 个 1/4 机架宽产品的多产品杆式安装套件 | |
| PPC 25 | 优先呼叫控制器 | |
| RSF 123 | 用于 3.5" 深产品的机架搁板套件 | |
| RSU 129 | 用于 9.5" 深产品的通用型机架搁板套件 | |
| VC 50 | 音量控制墙面板 | |
| 安装故事 |
|---|
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Extron MPA 122 集成式微型功放为教室和其它要求紧凑、简约的音频解决方案应用场所的扬声器系统提供立体声放大功能.
它是提升采用内置式视频 投影机扬声器基本教学系统的理想选择。MPA 122 在4 欧姆和8 欧姆阻抗下分别提供每通道 11 瓦和7 瓦的有效值（rms）功率。微型功放经过优化以 驱动四个8 欧姆天花板式扬声器，每通道两个并行连接。
特性
改良的D 等级放大设计
每通道 11 瓦和7 瓦的有效值（rms）功率分别为4 欧姆和8 欧姆负荷
THD + 噪音：0.1%、1 kHz 标称电平，用于1 瓦8 欧姆负荷
前面板低音、高音和输入电平控制
平衡与非平衡缓冲音频输入
前面板限位开关防止放大器削波
远程控制能力通过10k 电位计进行音量控制，通过触点闭合进行静音控制
机架安装1U 高1/4 机架宽金属机箱
提供外置型国际通用电源，产品编号为 70-380-01
示意图
面板图
| MPA 122 | |||
| Audio | |||
|---|---|---|---|
| Frequency response | 20 Hz to 20 kHz, ±1 dB @ 1 watt output | ||
| THD + Noise | 0.1% @ 1 kHz at nominal level (1 watt, 8 ohm load) | ||
| S/N | >74 dB @ 20 Hz to 20 kHz at maximum output (unweighted, with balanced input) | ||
| Stereo channel separation | >55 dB @ 1 kHz, >45 dB @ 20 kHz | ||
| CMRR | 80 dB @ 1 kHz, 70 dB @ 20 kHz | ||
| Bass adjustment | ±10 dB @ 80 Hz (reference) to 1 kHz (2 dB tolerance) | ||
| Treble adjustment | ±10 dB @ 10 kHz (reference) to 1 kHz (2 dB tolerance) | ||
| Audio input | |||
| Number/signal type | 1 stereo, balanced/unbalanced input 2 stereo, unbalanced inputs (The three inputs are individually buffered and mixed together.) |
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| Connectors | (1) 3.5 mm captive screw connector, 5 pole (main input) (1) 3.5 mm mini audio jack (tip, ring, sleeve) 1 pair RCA |
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| Impedance | >18k ohms unbalanced, >24k ohms balanced, DC coupled | ||
| Nominal level | +4 dBu (1.23 Vrms) balanced or -10 dBV (316 mVrms) unbalanced | ||
| Maximum level | |||
| Level pot. at 10 o'clock | +6 dBV (unbalanced), +16 dBu (balanced) at 1% THD+N | ||
| Level pot. at 9 o'clock | +17 dBV (unbalanced), +27 dBu (balanced) at 1% THD+N | ||
| Input level sensitivity | -18 dBV from unbalanced input for maximum output (11 watts with a 4 ohm load and level set to maximum) before clipping | ||
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| Audio output | |||
| Number/signal type | 1 stereo or 2 mono (2 channels total) | ||
| Connectors | (1) 5 mm captive screw connector, 4 pole | ||
| Minimum load impedance | 4 ohms | ||
| Amplifier type | Improved Class D | ||
| Continuous power with a full load and 1% THD | |||
| At 4 ohms | 11 watts (rms) per channel | ||
| At 8 ohms | 7 watts (rms) per channel | ||
| Damping factor | >30 (with a 4 ohm load) | ||
| Control/remote — amplifier | |||
| Control port | (1) 3.5 mm captive screw connector, 3 pole | ||
| Pin configuration | Pin 1 = +10 VDC, pin 2 = volume/mute (variable voltage), pin 3 = GND | ||
| Volume control voltage range | 0 V (mute) to 10 V (maximum volume) | ||
| General | |||
| External power supply | 100 VAC to 240 VAC, 50/60 Hz, external; to 12 VDC, 3 A (max.), regulated | ||
| Power input requirements | 12 VDC, up to 3 A | ||
| Temperature/humidity | Storage: -40 to +158 °F (-40 to +70 °C) / 10% to 90%, noncondensing Operating: +32 to +122 °F (0 to +50 °C) / 10% to 90%, noncondensing |
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| Cooling | Convection, vents on sides and top | ||
| Mounting | |||
| Rack mount | Yes, with optional 1U, 9.5" deep rack shelf (RSU 129, #60-190-01, or RSB129, 60-604-01); 1U, 6" deep rack shelf (RSU126, #60-190-10, orRSB126, 60-604-10); or VersaTools® 1U, 3.5" deep rack shelf (RSF 123, #60-190-20; RSB 123, 60-604-20) | ||
| Furniture mount | Yes, with optional VersaTools® MBU 123 mini under desk mounting kit, part #70-212-01 | ||
| Pole mount | Above-projector mountable with optional PMK 300 Multi-Product Projector Mounting Kit, part #70-374-01 |
||
| Enclosure type | Metal | ||
| Enclosure dimensions | 1.7" H x 4.3" W x 3.0" D (1U high, quarter rack wide) (4.3 cm H x 10.9 cm W x 7.6 cm D) (Depth excludes connectors.) |
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| Product weight | 0.6 lbs (0.3 kg) | ||
| Shipping weight | 3 lbs (2 kg) | ||
| Vibration | ISTA 1A in carton (International Safe Transit Association) | ||
| Regulatory compliance | |||
| Safety | CE, CUL, UL UL rated for use in plenum airspaces: meets UL 2043 for heat and smoke release, excluding the power supply; meets UL 60950 and UL 60065 for safety. |
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| EMI/EMC | CE, C-tick, FCC Class A, ICES, VCCI, | ||
| Warranty | 3 years parts and labor | ||
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| (7.6-110508-D17) | |||
| 可选附件 | ||
|---|---|---|
| MBB 100 | Back of Rack Mounting Kit | |
| MBU 123 | 用于 1/8、1/4 和 1/2 机架宽产品的薄型安装套件 | |
| PMK 100 | 用于 1/4 机架宽产品的杆式安装套件 | |
| PMK 300 | 用于 3 个 1/4 机架宽产品的多产品杆式安装套件 | |
| PPC 25 | 优先呼叫控制器 | |
| RSF 123 | 用于 3.5" 深产品的机架搁板套件 | |
| RSU 129 | 用于 9.5" 深产品的通用型机架搁板套件 | |
| VC 50 | 音量控制墙面板 | |
中国上海市松江区茸华路 686 号
(联系就说在DAV音视工程网上看到的)
Sales-China@Extron.com
021-3760 1566
爱思创电子（上海）有限公司（爱思创Extron中国）全球总部位于美国加州，是世界领先的专业视音频系统集成产品的生产商。爱思创Extron产品主要包括视音频控制系统、计算机视频接口、切换器、矩阵切换器、分配放大器、音频放大器、扬声器、双绞线和光纤设备、视频图像解析度转换器、视音频信号处理器、视音频流媒体产品、教室声场系统及高分辨率电缆。爱思创Extron电子提供专业视音频工程、培训、设计、演示支持。
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