Description
The Reference Audio EOS 8000.4 is a compact, high-efficiency Class-D 4-channel amplifier designed for crystal-clear sound reproduction and flexible system setups. With reliable protection features and powerful output in a small footprint, it’s ideal for powering mids, highs, or small subwoofers in both daily and competition-grade audio systems.
- 4-Channel Class-D Power Amplifier
- Power Output: 75W x 4 @ 4Ω | 110W x 4 @ 2Ω | 250W x 2 @ 4Ω (Bridged)
- Wide Frequency Response: 10Hz – 40kHz
- Ultra-Low Distortion: 0.06% THD
- High Efficiency: 90% @ 4Ω
- Compact Chassis: 180 x 42 x 176 mm
- 20K Input Impedance with 58dB Channel Separation
- Selectable Crossover with Low-Pass (20Hz – 500Hz)
- Clipping Protection LED Indicator
- Full Protection Suite: Thermal, Overload, Short Circuit & Voltage Protection
- 4 AWG Power Input Terminals
The Reference Audio EOS 8000.4 redefines compact amplifier performance with its efficient Class-D design, delivering clean and detailed sound without sacrificing power. Despite its small size, this amplifier is capable of handling up to 110W per channel at 2Ω, or a bridged 250W x 2 @ 4Ω, giving you the flexibility to power component speakers, coaxials, or even smaller subwoofers with precision.
Its wide 10Hz–40kHz frequency response ensures full-range audio reproduction, while the 0.06% THD guarantees accuracy and clarity even at high volume. Engineered for reliability, the EOS 8000.4 features comprehensive protection circuits including thermal, overload, short circuit, and voltage safeguards, along with a clipping indicator LED to keep your system running safely.
With its compact chassis (180 x 42 x 176 mm) and 4 AWG power input support, installation is simple and efficient, making it the perfect choice for those who need high performance in a space-saving design. Whether used for daily driving or competition-level setups, the EOS 8000.4 is built to deliver Reference Audio’s signature power, precision, and durability.
Specifications
| Power Rating | 75 x 4 @ 4 Ohm
110W x 4 @ 2 Ohm 250W x 2 @ 4 Ohm (Bridge) |
| Frequency Response | 10Hz – 40KHz |
| Efficiency @ 4 Ohm | 90% |
| Dampening Factor | N/A |
| Input Impedance | 20K |
| Channel Separation | 58dB |
| Total harmonica Distortion (THD) | 0.06% |
| Low Level Input Range | 310mv-7V |
| Selectable X-Over | Yes |
| Low Pass Crossover (Unit-Hz) -3dB | 20Hz-500Hz |
| Sub Sonic (Unit-Hz) – 3dB | N/A |
| Bass Boost Range | N/A |
| Bass Boost Frequency | N/A |
| Amp Class | Class D |
| Number of Channels | 4 |
| Minimum Impedance | 2-Ohm |
| LED Indicator | Yes |
| Power Input | 4 AWG |
| Remote Level Control | No |
| Thermal Protection | Yes |
| Over-Load Protection | Yes |
| DC Output Protection | N/A |
| Short Circuit Protection | Yes |
| Voltage Input Protection | 8v – 17v |
| Clipping Protection LED | Yes |
| Dimensions (WxHxL) mm | 180 x 42 x 176 |





