4-Channel
Amplifiers
SR-O4800D
Four-channel power amplifier — 800W per channel at 8Ω, modular design.
SR-O4800D is a compact 1U, four-channel power amplifier built for reliability under sustained load. Each of its four channels is fully modular, operating independently with no cross-channel interference, and delivers 800W into 8Ω, 1500W into 4Ω, or 1800W into 2Ω per channel. A switch-mode power supply, intelligent limiter and full protection circuitry guard against overload, short-circuit and thermal faults.
4 CH
Channels
800W×4
@ 8Ω
1500W×4
@ 4Ω
>105dB
SNR
1U
Rack Height
Features
01
Modular Channel Design
Each of the four channels operates fully independently, with no interference between channels.
02
1U High-Density Chassis
Small dimension, light weight and high output power in a single rack space.
03
Full Protection Circuitry
Switch-mode power supply with intelligent limiter and comprehensive fault protection.
04
Stereo / Parallel / Bridge Modes
Rear-panel mode switch configures channel routing for stereo, parallel, or bridged operation.
Specifications
| Number of Channels | 4 |
| Output Power @ 8Ω | 800W × 4 (THD=1%) |
| Output Power @ 4Ω | 1500W × 4 (THD=1%) |
| Output Power @ 2Ω | 1800W × 4 (THD=1%) |
| Frequency Response (@8Ω) | 20Hz–20kHz, ±0.3dB |
| Slew Rate | 50V/μs |
| THD+N | <0.1% |
| SNR | >105dB |
| Crosstalk | >75dB |
| Damping Factor | >800 (8Ω, 20Hz–200Hz) |
| Input Impedance | 20k (Balanced), 10k (Unbalanced) |
| Voltage Gain | 38dB |
| Efficiency | >85% |
| Operating Modes | Stereo / Parallel / Bridge |
| AC Input | 100–240V, 50/60Hz |
| Cooling | Forced air, front-to-rear airflow |
| Height | 1U |
| Product Dimensions | 483 × 430 × 44mm (W×D×H) |
| Net Weight | 10.5kg |
Applications
Documentation