The Dynacord SL900 is a two-channel Class AB power amplifier rated at 2x 450W into 4 ohms, with no onboard DSP. It has dynamic limiters, a full protection circuit and Dynacord’s switchable LPN (low-pass notch) filter for loudspeaker transient correction. Typical uses are club systems, mobile and band PA, and rental stock.
2x 450W
Into 4 ohms
1300W
Bridged, 4 ohms
Class AB
Output stage
2U
Rack height
Features
Two channels, 2x 450W into 4 ohms
Bridged output of 1300W into 4 ohms
Class AB output stage
Switchable LPN (low-pass notch) filter to correct loudspeaker transient response
Dynamic limiters on each channel
Turn-on delay relays to protect connected loudspeakers
Comprehensive amplifier protection
Black finish, 2U rack chassis
Specifications
| Output power, both channels driven (THD 1%, 1 kHz) | 2 ohm: 650W, 4 ohm: 450W, 8 ohm: 270W |
| Bridged output (THD 1%, 1 kHz) | 4 ohm: 1300W, 8 ohm: 900W |
| Single channel dynamic headroom (IHF-A) | 2 ohm: 1150W, 4 ohm: 660W, 8 ohm: 350W |
| Output stage | Class AB |
| Frequency response | 10 Hz to 40 kHz (±1 dB) |
| Voltage gain | 32 dB |
| Input sensitivity | +2.2 dBu (1.0 Vrms) (rated power into 8 ohms, 1 kHz) |
| Maximum input level | +21 dBu (8.69 Vrms) |
| Dimensions (H x W x D) | 88.1 x 483 x 421.5 mm, 2U rack |
| Weight | 12.6 kg |





