PA Tech QSM-853A User Manual Download

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QSM-6505A Manual

8. Technical Specification

Model

QSM-853A

QSM-855A

Type

Distribution Mixer Amplifier

Power Supply

AC 115V/ 230V, 50 / 60Hz ± 10%
Switchable

Output Power:

50W x 5

Total Harmonic Distortion

<= 0.1% @ 1KHz, rated power

Sensitivity

1/4" PHONE JACK (UNBALANCED)

MIC 1~2 1 mV @ 600 ohm

AUX 1 200mV @ 20K ohm

RCA JACK (UNBALANCED)

AUX 2 200mV @ 20K ohm

AUX 3 200mV @ 20K ohm

AUX 4 200smV @ 20K ohm

SPEAKER JACK (UNBALANCED)

HI LEVEL 100V @ 300 ohm

Frequency Response

20Hz ~ 20KHz ± 3dB

Output

8 ohm speaker jack

Signal to noise ratio

< 70dB

Damping Factor

>200

Voice Priority Mute

MIC. 1

Protection

Speaker Short
Temperature
Over Load

AC power consumption

250W @ rated
power

400W @ rated
power

Dimensions ( H x W x D )mm 88 (H) x 425(W) x 305 (D) mm
Weight

8 kgs

10 kgs

Mounting

Free standing or 19” rack

WARNING: THIS APPLIANCE MUST BE EARTHED

Summary of Contents for QSM-853A

Page 1: ...USER MANUAL QSM 853A 855A Distribution Mixer Amplifier ...

Page 2: ...lt in moderate or minor body injury and or property damage PANEL DESCRIPTION When Installing the Amplifier DO NOT installing or mounting the amplifier in unstable locations such as on the rickety table or the slanted surface It may result in the amplifier falling down and causing body injury and or property damage Be sure to ground to the safety ground earth terminal to avoid electric shock Never ...

Page 3: ...r it may result in fire or electric shock DO NOT open nor remove the amplifier cover to prevent fire or electric shock for there are high voltage components inside the amplifier PANEL DESCRIPTION When Installing the Amplifier DO NOT remove nor plug in the power supply plug with wet hands for it may cause electric shock When unplug the power supply cord be sure to grasp the power supply plug DO NOT...

Page 4: ...it periodically In addition make sure the plug is inserted in the wall outlet securely Contact your local dealer to clean the dust it the dust has accumulated in the amplifier for a long period of time Dust accumulation may result in fire or damage 2 Description QSM 853A and QSM 855A are the mixer amplifier designed for up to 5 channels zones application Each channel output is 50W RMS and 30W resp...

Page 5: ...ity Switch 24 Channel 4 Treble Control 10 Channel 4 Input Source Selection Switch 25 Channel 4 Volume Control 11 Channel 5 Mute Priority Switch 26 Channel 5 Bass Control 12 Channel 5 Input Source Selection Switch 27 Channel 5 Treble Control 13 Power Switch 28 Channel 5 Volume Control 14 Channel 1 Bass Control 29 Power Indicator LED 15 Channel 1 Treble Control REAR PANEL DESCRIPTION 1 AC Power Inpu...

Page 6: ... AC and DC power in 2U height 19 rack or table mounted 5 Power Source AC Power Source The supply transformer has been designed for use on either 115V or 230V 50 60Hz selected by a push switch on the rear panel The amplifier is factory set at 230Vac mains voltage 6 Connection Microphone Connection Mic1 2 inputs are unbalanced standard 1 4 Phone Jack Mute Function Priority Microphone Mic1 input has ...

Page 7: ...on the rear panel The jack is for 8 ohm speaker 7 Operation After all connections are completed turn the Input Source Selection Switch of each channel to set on the corresponding position for the signal source If necessary turn the bass treble and volume control to what you desire Before using the microphone 1 on the front panel to broadcast make sure the level volume control of MIC 1 is at proper...

Page 8: ...hm RCA JACK UNBALANCED AUX 2 200mV 20K ohm AUX 3 200mV 20K ohm AUX 4 200smV 20K ohm SPEAKER JACK UNBALANCED HI LEVEL 100V 300 ohm Frequency Response 20Hz 20KHz 3dB Output 8 ohm speaker jack Signal to noise ratio 70dB Damping Factor 200 Voice Priority Mute MIC 1 Protection Speaker Short Temperature Over Load AC power consumption 250W rated power 400W rated power Dimensions H x W x D mm 88 H x 425 W...

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