LH-11 PRE AMP LIFIER

10 input pre-amplifier

Product Details

Description:


1.The transmission distance between the pre amplifier and the paging microphone console is within 200 meters. The balanced signal transmission method is adopted, which is stable and reliable, and has strong anti-interference ability.

2.Multiple input interfaces, 5 microphone inputs, 3 line inputs , 1 emergency input, 1 remote paging microphone input, 2 unbalanced signal outputs, 1 balanced signal output, and 1 line record output.

3.The volume of each input channel is independently controlled, and there is a Master volume ,Bass & Treble adjustment knob.

4.The microphone input has a switch control for PHANTOM power. 5.P owered by AC220V or DC24V power supply


Features:


1.Connect the network cable according to the correct connection method (please refer to the network cable port wiring definition diagram).

2.When plugging and unplugging the network cable, you must ensure that other devices connected to this device are powered off.

3.When connecting DC24V power supply (the current must be ≥1A) to the DC input  terminal, pay attention that the positive and negative cannot be connected in reverse.

4.When the active microphone is plugged in, the phantom power switch must be in the "OFF" state, otherwise it is easy to damage the device.

5.The BASS and TREBLE knob can not be turned to the maximum, otherwise it is easy to damage the power amplifier or speaker.



Specification:


Model

LH-11

MIC inputs

MIC1-MIC5:600 ohms<12mV unbalanced

EMC inputs

EMC:10k ohms<330mV, Unbalanced

AUX inputs

AUX1-AUX3:10K ohms<12mV unbalanced

AUX output

±0.775 V (0 dB), Balanced signal

REC output

0.775V (0 dB) Unbalance

Frequency response

60 Hz ~ 15k Hz ( ± 3 dB)

THD

<0.5% at 1kHz

Priority order

 

Remote paging microphone > EMC >MIC1 >MIC2,MIC3, AUX3,MIC4,MIC5,AUX1,AUX2

 

Function Control

9Volume controller,Bass,Treble,Power switch

Indicator

POWER

Protection

AC FUSE x 0.5A x 1

Power supply 1

AC 220V ± 10% 50 - 60Hz

Power supply 2

DC24V/500mA

Power consumption

<8W

Dimension

89(H) x 483(W) x 366(D) mm

Weight

5.96kg