DYNACORD - SL 900, 2 × 450 W/ 4 Ohms Power Amplifier

Features

- Professional two-channel power amplifier

- Maximum output of 2 × 450 W into 4 ohms

- Maximum output of 2 × 650 W into 2 ohms

- Maximum output of 2 × 270 W into 8 ohms

- Maximum bridged output of 1300 W into 4 ohms

- Maximum bridged output of 900 W into 8 ohms

- Efficient Class H amplifier technology

- Stable high-power output and high efficiency

- Integrated switchable LPN Low-Pass Notch filter

- Corrects loudspeaker frequency and phase response

- Optimizes audio signal transient response

- Provides greater punch with full-range speakers and subwoofers

- Three operating modes: Dual, Parallel and Bridged

- Independent level controls for channels A and B

- Electronically balanced XLR audio inputs

- Parallel XLR outputs for signal daisy-chaining

- Speakon-type loudspeaker outputs

- Bi-amp cabling available through the Channel A output

- Ground Lift switch for reducing ground-loop noise

- Integrated dynamic audio limiters

- High-temperature protection

- Short-circuit and overload protection

- DC voltage protection

- High-frequency HF protection

- Back-EMF protection

- Peak-current limiters

- Inrush-current limiting circuit

- Loudspeaker turn-on delay relays

- Individual LED level indicators for both channels

- Power, Protect and Limit LED indicators

- Front-to-rear active cooling system

- Two temperature-controlled three-stage fans

- Quiet operation during idle conditions

- Standard 19-inch rack installation

- Compact two-rack-unit design

- Designed for mobile systems, clubs, stages and fixed installations

Specifications

- Brand: DYNACORD

- Model: SL 900/230V

- Series: Standard Precision SL

- Product type: Professional power amplifier

- Number of channels: 2

- Output-stage topology: Class H

- Maximum output into 2 ohms: 2 × 650 W

- Maximum output into 4 ohms: 2 × 450 W

- Maximum output into 8 ohms: 2 × 270 W

- Rated output into 4 ohms: 2 × 400 W

- Rated output into 8 ohms: 2 × 200 W

- Dynamic single-channel output into 2 ohms: 1150 W

- Dynamic single-channel output into 4 ohms: 660 W

- Dynamic single-channel output into 8 ohms: 350 W

- Continuous single-channel output into 2 ohms: 850 W

- Continuous single-channel output into 4 ohms: 540 W

- Continuous single-channel output into 8 ohms: 310 W

- Maximum bridged output into 4 ohms: 1300 W

- Maximum bridged output into 8 ohms: 900 W

- Maximum RMS voltage swing: 55.3 V

- Power bandwidth: below 10 Hz to 30 kHz

- Frequency response: 10 Hz to 40 kHz, ±1 dB

- Voltage gain: 32 dB

- Input sensitivity: +2.2 dBu / 1 V RMS

- Maximum input level: +21 dBu / 8.69 V RMS

- Input impedance: 20 kΩ, active balanced

- Total harmonic distortion: below 0.03%

- IMD-SMPTE distortion: below 0.1%

- DIM30 distortion: below 0.05%

- A-weighted signal-to-noise ratio: above 106 dB

- Crosstalk at 1 kHz: below -80 dB

- A-weighted output noise: below -71 dBu

- Damping factor at 1 kHz: above 300

- Slew rate: 25 V/µs

- Signal processing: Switchable LPN filter

- Operating modes: Dual, Parallel and Bridged

- Audio inputs: 2 balanced XLR connectors

- Daisy-chain outputs: 2 parallel XLR connectors

- Loudspeaker outputs: 2 Speakon-type connectors

- Level indicators: -40, -30, -20, -10, 0 dB and Limit

- Protection circuits: Audio limiters, temperature, DC, HF, Back-EMF and peak current

- Additional protection: Inrush-current limiting and turn-on delay

- Cooling system: Two three-stage fans

- Airflow direction: Front to rear

- Power supply: 230 V, 50 to 60 Hz

- Power consumption at 1/8 maximum output into 4 ohms: 550 W

- Mains fuse for 230 V: T10AH

- Safety class: Class I

- Operating temperature range: +5 °C to +40 °C

- Installation: 19-inch rack, 2U

- Dimensions: 483 × 88.1 × 421.5 mm

- Weight: 12.6 kg

- Optional accessory: D113223 / RMK-15 rear rack-mount kit

- Note: Continuous operation into 2 ohms in Dual mode or 4 ohms in Bridged mode depends on the ambient temperature