Eight-Channel Amplifier
SR-8400-AMP
Eight-channel Class-D amplifier — 8 × 350 W in a single rack unit.
An eight-channel Class-D amplifier built on switching power technology: no output transformer, less heat and a longer service life, with efficiency above 85%. A PWM power circuit supports natural cooling backed by four fans, and all eight channels fit a 19-inch, 1U chassis with Speakon outputs and balanced jack inputs.
8×350W
8 Ω
8×500W
4 Ω
8×750W
2 Ω
>85%
Efficiency
1U
Rack Height
Features
01
Eight channels, 1U
Eight independent Class-D channels in a 19-inch single rack unit.
02
Low-impedance capable
Rated output down to 2Ω for demanding distributed low-impedance loads.
03
PWM cooling design
A special PWM power circuit works with four fans to hold internal temperature down.
04
Full protection set
Clip, high temperature, overload and short-circuit protection with visual indicators.
Full Specifications
| Technology | Class-D |
| RMS power @ 8 Ω stereo | 8 × 350 W |
| RMS power @ 4 Ω stereo | 8 × 500 W |
| RMS power @ 2 Ω stereo | 8 × 750 W |
| Max output | 57 V |
| Input sensitivity / max level | 1 V / 26 dBu |
| Gain | 34 dB |
| THD | <0.5% |
| Crosstalk | >75 dB |
| Frequency response | 20 Hz–20 kHz |
| Input impedance | 10 kΩ |
| Damping parameter | >1000 (8 Ω, 20–200 Hz) |
| S/N ratio | >105 dB (20 Hz–20 kHz) |
| Power consumption | 550 VA (1/8 max @ 4Ω); 1100 VA (1/4 max @ 4Ω) |
| Connectors | Combo female input, XLR female link, Speakon outputs |
| Efficiency | >85% |
| Power supply | AC 220–240V or 115V, 50–60Hz |
| Dimensions (W×D×H) | 484 × 430 × 44 mm |
| Weight | 10.9 kg |
All figures are nominal, per manufacturer data.
Applications