Multi-zone digital amplifier-preamplifier

Name: Multi-zone digital amplifier-preamplifier
Brand: JD-MEDIA
SKU: S-2520D

Reference : S-2520D

SKU : 01165

250W preamplifier preamplifier on 20 zones

Power output

250 W

Zones

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S-2520D / T-2510D

Description

Characteristics :

Digital mixing amplifier class D, 250 W, 20 Zones S-2520D
Input CH1 :
chime 2 tones
Siren function: wave, flat, DIN3304
Tel/Paging call input
Module location
Recording output
PRE OUT output
Super priority message: PTT / MIC1 are priority digital message (SD card)
The PTT entrance has priority over the siren.
In the event of a power failure, when the power is restored, the amplifier will restart according to the initial conditions.
High efficiency of the PWM CLASS-D amplifier
Microprocessor that controls all of the amplifier's functions (Micom)
High S.M.P.S. circuit efficiency (AC/DC, DC/DC)
Input circuit protection
Overload protection
Overvoltage protection
Overheating protection
Two power supply levels to limit energy consumption
It goes into stand-by mode when there is no signal at the input, it resumes operation automatically as soon as a signal is received.
E/M priority input, E/M emergency message for SD memory card automatically broadcast for evacuation.
RS 485 communication for remote control (On/Off, amplifier status monitoring, volume control)

SPECIFICATIONS	S-2520D
Type	Selector
Output power	250W
Output impedance	40 Ω / 100V, 4 Ω
Consumption	390W
Output zone	20 zones
Inputs 1-7	7 (MIC/LINE x 5, LINE x 2), CH-1: PTT
Priority	1) PTT/MIC-1; 2) Digital Message; 3) TEL, CH-2; 4) CH-3-CH-7, USB/PACK
Signal-to-noise ratio	MIC > 70 dB LINE > 100 dB
Distortion Rate	≤ 0,5 % (1KHz)
Frequency Response	MIC : 200 – 20000 Hz, LINE : 40 – 20000 Hz
Input sensitivity	MIC:-50dBu 5K Ω BAL, LINE :-10dBu 15K Ω BAL
Power supply	AC 230 V 50 Hz – DC 24 V
Dimensions	483 x 350 x 133 mm (3U)