The Dynacord SL 900 is a dual 450 W power amplifier for live sound. Ideal for powering compact passive speakers that operate on 450 W or less, the SL 900 is a stable and reliable amp for mobile and installation sound alike.
The SL range amplifiers offer three different impedances – 2 ohm, 4 ohm, and 8 ohm – for huge flexibility, all with different levels of power output to fit any system. The SL 900 also boasts comprehensive protection circuitry, including dynamic limiting, to prevent overloading speakers. Dynacord’s Low-Pass Notch filtering improves frequency response and transient response of any speakers it powers too, resulting in a clearer, punchier sound.
Clean clear amplification: The SL 900 is a highly efficient power amp for powering passive PA speakers with great stability to bring the very best possible sound. Portable and compact, but also well-suited to permanent installation in venues, this amplifier can adapt to any venue or sound system you need it to.
Improve your sound: The SL 900 comes equipped with a wide-ranging set of protection circuitry and dynamic limiting to ensure power sent to speakers remains consistent and clean. Combined with Dynacord’s special Low Pass Notch filtering to improve transient response and tailor the frequency response of the speakers it drives, this amplifier will make your system sound its very best.
Features:
– Dual 450 W power amplifier for powering passive PA speakers
– Three impedance options from 2 ohm, 4 ohm, and 8 ohm modes
– Outputs 650 W at 2 ohms, 450 W at 4 ohm, and 270 W at 8 ohm
– Efficient and stable power output for clean, clear sound
– Compact and portable rack mount unit suitable for touring or venue installation
– Advanced protection package and dynamic limiters to prevent overload and keep power clean
– Low-Pass Notch filter adjusts frequency response and improves transient response of speakers
– Adjustable power level per channel
– LED metering with limiter warning lights
– Convenient power switch
Specifications:
– Maximum Midband Output Power THD = 1%, 1 kHz:
– Dual Channel: 650 W (@ 2ohm load impedance), 450 W (@ 4ohm load impedance), 270 W (@ 8ohm load impedance)
– Rated Output Power THD < 0.1%, 20 Hz to 20 kHz:
– 400 W (@ 4ohm load impedance), 200 W (@ 8ohm load impedance)
– Maximum Single Channel Output Power Dynamic-Headroom IHF-A:
– 1150 W (@ 2ohm load impedance), 660 W (@ 4ohm load impedance), 350 W (@ 8ohm load impedance)
– Maximum Single Channel Output Power Continuous 1 kHz:
– 850 W (@ 2ohm load impedance), 540 W (@ 4ohm load impedance), 310 W (@ 8ohm load impedance)
– Maximum Bridged Output Power THD = 1%, 1 kHz:
– 1300 W (@ 4ohm load impedance), 900 W (@ 8ohm load impedance)
– Maximum RMS Voltage Swing THD = 1%, 1 kHz: 55.3 V
– Power Bandwidth THD = 1%, ref. 1 kHz, half power @ 4ohm: < 10 Hz to 30 kHz
– Voltage Gain ref. 1 kHz: 32.0 dB
– Input Sensitivity rated power @ 8ohm, 1 kHz: +2.2 dBu (1.0 V RMS)
– THD at rated Output Power MBW = 80 kHz, 1 kHz: < 0.03%
– IMD-SMPTE 60 Hz, 7 kHz: < 0.1%
– DIM30 3.15 kHz, 15 kHz: < 0.05%
– Maximum Input Level: +21 dBu (8.69 V RMS)
– Crosstalk ref. 1 kHz at rated output power: 300
– Slew Rate: 25 V/µs
– Signal to Noise Ratio A-weighted: > 106 dB
– Output Noise A-weighted: < -71 dBu
– Output Stage Topology: Class H
– Power Requirements: 240 V, 230 V, 120 V or 100 V; 50 Hz to 60 Hz (factory configured)
– Power Consumption 1/8 maximum output power @ 4 ohm: 550 W
– Mains Fuse: 240 V / 230 V: T10AH; 120 V / 100 V: T20AH
– Protection: Audio limiters, High temperature, DC, HF, Back-EMF, Peak current limiters, Inrush current limiters, Turnon delay
– Cooling: Front-to-rear 3-stage-fans
– Ambient Temperature Limits: +5°C to +40°C (40°F to 105°F)
– Safety Class: I
– Dimensions (W x H x D): 483 x 88.1 x 421.5 mm
– Weight: 12.6 kg (27.8 lbs)
– Signal Processing: LPN switchable
