HiFi Rose - RA280 - Integrated Amplifier

The HiFi Rose RA280 Integrated Amplifier is a high-performance analog amplification platform engineered to deliver powerful wide-bandwidth performance, refined musical accuracy, and extensive system integration flexibility. Designed for demanding two-channel audio systems, the RA280 combines advanced amplifier architecture with precision-machined construction and comprehensive analog connectivity.

Built around a high-current output stage and advanced switched-mode power supply architecture, the RA280 delivers substantial continuous output capability with low distortion, wide frequency response, and excellent damping performance. Precision tone controls and integrated MM phono functionality provide additional flexibility for audiophile vinyl and line-level source integration.

The RA280 also incorporates balanced and unbalanced analog inputs, subwoofer output capability, trigger integration, and robust chassis construction utilizing solid aluminum and rust-proof steel materials. Combining sophisticated engineering with elegant industrial design, the RA280 serves as a powerful centerpiece for modern high-end stereo systems.

Available Configurations & Options:
Black or Silver finishes available

FEATURES

• High-performance integrated amplifier platform
• 250W x 2 channel RMS output into 8Ω
• Balanced analog input connectivity
• Three unbalanced line-level inputs
• MM phono input stage
• Dedicated subwoofer output
• Wide-bandwidth amplifier architecture
• Precision bass and treble tone controls
• 500W switched-mode power supply design
• Trigger input and trigger output integration
• IR remote-control compatibility
• Solid aluminum and rust-proof steel chassis construction
• Designed and manufactured in South Korea

SPECIFICATIONS

Type: Integrated Amplifier
FTC Power Output Rating (RMS): 250W x 2ch (8Ω, 20Hz-20kHz, THD 0.07%)
Frequency Range: 10Hz~80kHz (8Ω, 1W)
Load Impedance: 8Ω
Subwoofer Output (Mono): 1Wrms (2.218 dBu)
Balanced Input Sensitivity: 600mV (≈ 250W x 2ch)
Unbalanced Input Sensitivity: 600mV (≈ 250W x 2ch)
Phono (MM) Input Sensitivity: 5mV (≈ 250W x 2ch)
Unbalanced Input Impedance: 47kΩ
Bandwidth (20Hz~20kHz): +0, 0dB (≈ 250W x 2ch, 8Ω Speaker Output)
Bandwidth (10Hz~66kHz): +0, -1dB (≈ 250W x 2ch, 8Ω Speaker Output)
Bandwidth (10Hz~85kHz): +0, -3dB (≈ 250W x 2ch, 8Ω Speaker Output)
THD (Balanced & Unbalanced Inputs): 0.05% (8Ω, 1W to 250W, 1kHz)
Damping Factor: >250 (≈ 250W x 2ch)
Signal to Noise Ratio: 109dB (Balanced), 109dB (Unbalanced), 85dB (Phono MM)
Speaker Output Impedance: 30mΩ (≈ 250W x 2ch)
Tone Control: Bass (100Hz) / Treble (10kHz) ±15dB
Phono Turnover: 500Hz (+13dB @ 100Hz) (≈ RIAA)
Phono Roll-off: 2.1kHz (-13.74dB @ 10kHz) (≈ RIAA)
Power Supply: 500W SMPS (Maximum Output: 600W)
Input Voltage: AC100-240V, 50/60Hz
Standby Power Consumption: <0.5W
Trigger In: 3.3V~12V
Trigger Out: 12V
IR Input: 38kHz Infrared Ray (Within 10m Operating Distance)
Dimensions: 16.9” W × 13.98” D × 4.06” H
Weight: 20.94 lbs
Body: Solid Aluminum, Rust-proof Steel