SR-Series Amplifier

Home > Digital Amplifier > SR-Series Amplifier

SR4-1800 Ultra-quiet Cooling 2U Professional Power Amplifier

SR4-1800 Ultra-quiet Cooling 2U Professional Power Amplifier

Item No.: SR4-1800

Output Power:
4 × 1800W/8Ω (RMS)
4 × 3000W/4Ω (RMS)
4 × 3800W/2Ω (RMS)
4 × 5600W/2Ω (20ms burst)

INQUIRY PDF Format

Description

Model

SR4-3200

SR2-4500

SR4-1800

Output Power:

4 × 3200W / 8Ω (RMS)

2 × 4500W/8Ω (RMS)

4 × 1800W/8Ω (RMS)

4 × 5500W / 4Ω (RMS)

2 × 8000W/4Ω (RMS)

4 × 3000W/4Ω (RMS)

4 × 6000W / 2Ω (RMS)

2 × 7000W/2Ω (RMS)

4 × 3800W/2Ω (RMS)

4 × 7000W / 2Ω (20ms burst)

2 × 8500W/2Ω (20ms burst)

4 × 5600W/2Ω (20ms burst)

Performance Parameter

Power

PFC Power

Rated power demand

100-240 V ±10%, 50/60 Hz

Operation voltage

90V-270V

Power correction factor cos(φ)

>0.95 @ >500 W

Standby

47W and 0.8A

Gain, Sensitivity

32dB, 35dB, 38dB, 41dB

Temperature

Environment temperature

0°C- 45°C / 32°F-113°F

Cooling system

Tunnel through cooling system

Performance

Frequency Response

20 Hz – 20 kHz (1 W @ 8 Ω, ±0.5 dB)

Signal-to-Noise Ratio

>110 dBA (20 Hz – 20 kHz, A weighted)

Crosstalk

> 66 dB @ 1 kHz

Input Impedance

10 kΩ balanced

Total Harmonic Distortion (THD)

<0.5% from 1 W to full power (Typical value <0.05%)

Intermodulation Distortion (IMD)

<0.5% from 1 W to full power (Typical value <0.05%)

Damping Factor (8 ohms)

>1000 @ 20-200 Hz

Slew Rate

50 V/µs @ 8 Ω

Front Panel

Indicator LED/per channel

Four pieces Green LED:

display the output signal (-20dB, -10dB, -5dB, -3dB) of SPEAKON

1 piece dual LED (Yellow and Red):

Protective state/Clip state/Over heat/Over load

Power Switch

Press-on;

Dust-proof

Two pieces dust-proof cotton,

it can take off to clean from the bottom of front panel

Application

Signal in-connection

4 Channel: One balanced XLR(with lock) female per channel;

2 Channel: One balanced XLR(with lock) female

and one balanced XLR male per channel.

Signal out-connection

One SPEAKON per channel connect to loudspeakers.

Power cord

Fixed to the device, and the CSA(cross sectional area) of the cord is 3 x 6mm², and the cord is 1.5 meters long.

Multiple-Functions Switch

Two Sensitivity Switches, one Mode Switch and one Clip Switch.

Structure

Dimensions

482 x 88 x 367 (without front panel) mm³

Net weight/Gross weight

12.5Kg / 14.5Kg

Packing size

580 x 580 x 143mm³

Feature

– Deeper bass, stronger impact, and better sound quality.	– Reliable 2Ω low-impedance performance.
– Patented amplifier technology for enhanced reliability.	– Wide 100–240V operating voltage.
– Ideal for line arrays, cinemas, bars, stadiums, and home theaters.	– Energy-saving and cost-efficient.
– High efficiency, low heat, and low distortion.	– Strict quality and reliability testing.
– Ultra-quiet cooling with short-circuit protection.	– Detachable 32A PowerCON cable included.
– Stable operation in high-temperature environments.	– 4 × NL4 + 1 × NL8 genuine Neutrik connectors.
– Modular design for easy maintenance.

Detail

Dual Signal LED
The red LED turns on:
This channel turn on protective state, stop working.Please wait for around aminute, if the device still stops working, please restart the device.
The yellow LED flashes:
This channel signal is audibly distorting. It may damage the tweeter.
The yellow LED turns on:
1.The temperature of the equipment ≥70℃;
2.The signal over load.

Green Signal LED
the output signal of SPEAKON ≥-3dB;
the output signal of SPEAKON ≥-5dB;
the output signal of SPEAKON ≥-10dB;
the output signal of SPEAKON ≥-20dB;

Tunnel through cooling system
Cold air comes in from the front panel of the equipment, forms a duct through the radiator to take the heat away and out from the rear panel of the equipment

SR4-1800 Ultra-quiet Cooling 2U Professional Power Amplifier

Review