The Dynacord SL1800 is a two-channel Class H power amplifier rated at 2x 900W 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 900W
Into 4 ohms
2800W
Bridged, 4 ohms
Class H
Output stage
2U
Rack height
Features
Two channels, 2x 900W into 4 ohms
Bridged output of 2800W into 4 ohms
Class H 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: 1250W, 4 ohm: 900W, 8 ohm: 550W |
| Bridged output (THD 1%, 1 kHz) | 4 ohm: 2800W, 8 ohm: 1800W |
| Single channel dynamic headroom (IHF-A) | 2 ohm: 2450W, 4 ohm: 1400W, 8 ohm: 700W |
| Output stage | Class H |
| Frequency response | 10 Hz to 40 kHz (±1 dB) |
| Voltage gain | 32 dB |
| Input sensitivity | +5.1 dBu (1.39 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 | 16.3 kg |





