DSPPA MP300PIII User manual

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P.A. SERIES3
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MIXING AMPLIFIER MP200PIII5
MP300PIII6
MP600PIII7
MP1000PIII8
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O W N E R ’ S M A N U A L19
Before operating, please read this manual carefully.20
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FEATURES
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Three microphone inputs, two auxiliary inputs, and one AUX output for link.
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Transformer for the speaker outputs at 100V, 70V and 4Ω.
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Muting function.
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Individual volume control.
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Low and high tone control.
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A five-element LED level meter is provided for the quick and easy visual
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monitoring of sound level.29
The protection and alarm in case of output short-circuit.
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Left blank for memo
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FRONT PANEL
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1 LED power indicator 6 Mic volume control12
For main power. Adjust microphone volume.
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2 Power switch 7 AUX volume control14
For main power. Adjust AUX input volume.15
3 LED level meter 8 Mic 1 input jack
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Indicate output level. Connect to microphone of unbalanced17
4 Bass control 30-600Ωwith 1/4″phone plug.18
Adjust bass response. The muting function is activated
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5 Treble control while the signal is sent to Mic 1.20
Adjust treble response.
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Note:23
When all the five elements of the LED level meter remain lit, it indicates that the sound is
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distorted. In such a case, adjust each volume controlling button, until LED element 4 (+8dB)25
and LED element 5 (+10dB) shall flash.26
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REAR PANEL28
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1 Mute control 4 AUX output41
Adjust muting function. Connect to amplifier.42
2 Mic 2 input & Mic 3 input 5 Output terminals43
Connect to the microphones at unbalanced Connect to speakers.44
30-600 Ωwith 1/4 phone plug. 6 AC power connector45
The signals from Mic 2 and Mic 3 will Connect to AC power source.46
be muted by the signal from Mic1. 7 AC fuse47
3 AUX 1 input & AUX 2 input Prevent the excessive AC current flow.
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Connect to auxiliary source equipment.
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When connecting to speakers, use one pair of speaker output terminals only.1
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Connections3
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MUTING FUNCTION
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This model provides muting function. The inputs from Mic 2, Mic 3,Aux20
1and Aux 2 are automatically muted by the input from Mic 1, as the signal21
from Mic 1 overrides other input signals. The level of MUTE can be adjusted22
within the range from MAX（0 dB ）to MIN（-30 Db）by23
adjusting MUTE control button on the24
rear panel. It is preset at -30 dB25
before shipping from the factory.26
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PRECAUTION OF INSTALLATIOM29
Priority MIC
or Chairman’s MIC
100V COM AUX OUT AUX2 AUX1 MIC3 MIC2
DECK
TUNER
MUTE
MAX MIN

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1. Do not block ventilation holes.2
2. The amplifier should not be placed in any of the areas:3
1) with poor ventilation;4
2) exposed to direct sunlight;5
3) with high ambient temperature or adjacent to heat-generating6
equipment;7
4) with high humidity or heavy dust;8
5) susceptible to vibration.9
3. Make sure the power outlet conforms to the plug of the unit.10
4. Do not use this unit if the electrical power cord is frayed or broken.11
Always operate the unit with the AC ground wire connected to the12
electrical system’s ground.
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5. If an alarm rings after the power has been on and the signal has been14
fed, there must be an of output short-circuit trouble. In a such case,15
please turn the power off. Do not turn on the power again, until the16
trouble shall be resolved.17
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SPECIFICATIONS
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Model
MP200PIII
MP300PIII
MP600PIII
MP1000PIII
Rated output
60W
120W
250W
350W
Output regulation
Less than 3dB, from off-load to full load
Speaker output
Balanced 4Ω, 70V, 100V
AUX output
≥1V
Inputs
Mic1,2,3: 600Ω, ≤3mV, unbalanced
AUX1,2/10kΩ, ≤300mV, unbalanced
Frequency response
50Hz -16kHz (±3dB)
Distortion
< 0.5% at 1kHz , 1/3rated power
The ratio of
signal to noise
Mic1,2 and 3 ：75dB
AUX1 and 2 ：80dB
Tone
Bass :±10dB at 100Hz
Treble:±10dB at 10kHz
Protection
AC fuse; DC voltage; overload; short-circuit.
Muting function
Mic 1 overrides other input signals with
0-( -30 )dB attenuation
Power
requirements
AC 220V-240V/50Hz-60Hz
Power
consumption
120W
250W
500W
650W
Dimensions
418×338×88mm
Gross weight
12.5kg
13.5kg
15.5kg
16.7kg
Net weight
10kg
11kg
13kg
14kg
Specifications are subject to change without notice3
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CAUTION
●When the “Power switcher” is off, please pull out the power cord from the socket.
Please keep the equipment out of water.
●To reduce the risk of electric shock, do not remove the cover.
●No user parts inside. Refer servicing to qualified service personnel.
Guangzhou DSPPA Audio Co. Ltd.5
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公共广播系列
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带前置广播功放 MP200PIII5
MP300PIII6
MP600PIII7
MP1000PIII8
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使用说明23
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欢迎使用 DSPPA 公共广播系统。为您能更好的使用产品，使用前请认真阅读本说明书．25
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性能特点
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三个话筒输入口，两个辅助输入口，一个辅助输出口,最宜于公共广播。
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100V, 70V 定压输出和 4Ω定阻（平衡，不接地）输出。
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有默音功能,便于插入优先广播。
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各通道独立音量控制。
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高音和低音音调控制。
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5单位 LED 电平表,甚易监察工作状态。
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输出短路保护并告警。
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单机即为一个完备的公共广播小系统。
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此页留空供用户记事。
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前面板
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1 电源指示灯 4 低音调节 7 辅助音量
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2 电源开关 5 高音调节 8 第 1 号（优先）话筒插口13
3 LED 电平指示 6 话筒音量
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注意: 5 只 LED 长亮时表示过载失真,应调节有关音量旋钮使第 4-5 只灯闪烁.16
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后面板 19
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1 默音控制 4 辅助输出口(录音或链接另一功放) 7 保险丝30
2 #2,#3 话筒插口 5 输出接线端子31
3 辅助输入 1,2 插口 6 交流电源接口32
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注意: 四个输出端子宜只使用其中之一对。34
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系统之连接
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默音功能
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Mic 1 乃具有最高优先级别之输入插口，由该口输入之信号将抑制其它口输入之18
信号。抑制的程度可由机器后面板之默音控制器“MUTE”调节，调节范围为19
MAX（0 Db）到 MIN (-30 dB)。出厂时调在调至最小端“MIN”。20
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优先话筒或
主席话筒
100V COM AUX OUT AUX2 AUX1 MIC3 MIC2
录音卡座
收音机
MUTE
MAX MIN