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70 伏 18 瓦单声道集成式微型功放-MPA 181T

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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、...

经销商	联系方式
爱思创Extron电子	4000.398766、 021-3760 1568

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　　Extron MPA 181T 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70 伏 18 瓦单声道音频放大功能.

可选附件
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
RSB 129	Basic Rack Shelf for 9.5" Deep Products
RSU 126	用于 6" 深产品的通用型机架搁板套件
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
Jyske Bank Uses AV to Change the Way People Think About Banks Recently, Denmark's second largest independent bank underwent a major change. In just three months Jyske - pronounced Yeeska - Bank transformed all 125 of its branches - both physically, and from a business model perspective as well. Their goal: To make Jyske Bank Denmark's most customer-oriented bank by introducing "Jyske Bank Generation Two," a bold attempt to enhance customers' experience and encourage them to change the way they think about banking...

安装故事

Jyske Bank Uses AV to Change the Way People Think About Banks Recently, Denmark's second largest independent bank underwent a major change. In just three months Jyske - pronounced Yeeska - Bank transformed all 125 of its branches - both physically, and from a business model perspective as well. Their goal: To make Jyske Bank Denmark's most customer-oriented bank by introducing "Jyske Bank Generation Two," a bold attempt to enhance customers' experience and encourage them to change the way they think about banking...

　　Extron MPA 181T 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70 伏 18 瓦单声道音频放大功能.

　　该功放专门设计用于70 伏恒定电压扬声器分配系统，不过也可以用于 4 欧姆或 8 欧姆扬声器系统。

　　特性

　　改良的等级 D 放大设计

　　18 瓦有效值功率输出，用于 70 伏扬声器系统

　　14 瓦和8 瓦有效值功率下4 欧姆及8 欧姆负荷

　　THD + 噪音：0.15%、1 kHz 标称电平，用于1 瓦8 欧姆负荷或70 伏输出

　　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

　　兼容通过10k 电位计进行音量远程控制，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 70-769-01.

　　示意图

Product Diagram

　　面板图

Panel Drawing

MPA 181T

Audio

Frequency response

8 ohm direct output

20 Hz to 20 kHz, ±1.5 dB

70 V output

110 Hz to 20 kHz, +0.5/-3 dB

THD + Noise

0.1% @ 1 kHz at nominal level (1 watt, 8 ohm load, or 70 V output)

S/N

>72 dB @ 20 Hz to 20 kHz at maximum output (unweighted)

CMRR

>80 dB @ 1 kHz, >70 dB @ 20 kHz

Bass adjustment

±10 dB @ 100 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/mono, balanced/unbalanced input
2 stereo/mono, unbalanced inputs
(The three inputs are individually buffered and mixed together. Stereo signals are actively summed into a mono signal.)

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

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 11 o'clock

+6 dBV (unbalanced), +16 dBu (balanced) at 1% THD+N

Level pot. at 9 o'clock

+16 dBV (unbalanced), +23 dBu (balanced) at 1% THD+N

Input level sensitivity

-16 dBV (158 mV) from unbalanced input for maximum output (18 watts at 70 V output and with the level set to maximum) before clipping

NOTE	0 dBu = 0.775 Vrms, 0 dBV = 1 Vrms, 0 dBV ≈ 2 dBu

Audio output

Number/signal type

1 single channel (mono) 70 V output or 1 direct 4- or 8-ohm speaker output

Connectors

(1) 5 mm captive screw connector, 4 pole

Minimum load impedance

2 ohms

Amplifier type

Class D

Continuous power with a full load and 1% THD

70 V system

18 watts (rms)

At 4 ohms

14 watts (rms)

At 8 ohms

8 watts (rms)

Damping factor

>30 (with a 4 ohm load)

Control/remote — amplifier

Control port

(1) 3.5 mm captive screw connector, 5 pole

Pin configuration

Pin 1 = +10 VDC, pin 2 = volume/mute control (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

Cooling

Convection, vents on top and sides

Mounting

Rack mount

Yes, with optional 1U, 9.5" deep rack shelf (RSU 129, #60-190-01, or RSB 129, 60-604-01); or 1U, 6" deep rack shelf (RSU 126, #60-190-10 orRSB 126, 60-604-10)

Furniture mount

Yes, with optional MBU 125 mini under-desk mounting kit, part #70-077-01

Pole mount

Yes, with optional mounting kits PMK 350, #70-563-02/-03, or PMK 450, #70-618-03

Enclosure type

Metal

Enclosure dimensions

1.7" H x 4.3" W x 6.0" D (1U high, quarter rack wide)
(4.3 cm H x 10.9 cm W x 15.2 cm D)
(Depth excludes connectors.)

Product weight

1.2 lbs (0.5 kg)

Shipping weight

6 lbs (3 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.

EMI/EMC

CE,C-tick, FCC Class A, ICES,VCCI

Warranty

3 years parts and labor

NOTE	All nominal levels are at ±10%

NOTE	Specifications are subject to change without notice.

(7.6-110508-D11)

可选附件
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
RSB 129	Basic Rack Shelf for 9.5" Deep Products
RSU 126	用于 6" 深产品的通用型机架搁板套件
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

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