The HiFi Rose RA280 Integrated Amplifier exemplifies the seamless blend of advanced technology and elegant design, crafted to deliver an unparalleled audio experience. Building on the legacy of its predecessor, the RA180, this new model integrates the revolutionary Advanced Class D amplification technology to offer both high efficiency and superior sound quality.

Innovative Advanced Class D Technology
HiFi Rose redefines digital amplification with the RA280’s Advanced Class D technology, featuring next-generation GaN (gallium nitride) FETs. This breakthrough innovation surpasses traditional Class D amplifiers, delivering sound quality comparable to analog while maintaining superior efficiency and power. The RA280 achieves near-perfect linear output with minimal distortion, ensuring smooth, natural sound reproduction. Covering a wide frequency range from 20 Hz to 100 kHz, the RA280 faithfully renders every audio detail, creating a truly immersive and realistic listening experience.

Superior Mono Amplifier Design with Advanced Filtering
The RA280 stands out with its two completely separated mono amplifier modules, each delivering 250 W (4 Ω and 8 Ω) to the left and right channels, for a total of 500 W in stereo mode. HiFi Rose’s advanced two-stage analog filter technology ensures top-tier sound quality. The LC filter provides exceptional frequency response, with -1 dB attenuation up to 65 kHz and -3 dB up to 85 kHz, effectively reducing carrier noise from Class D amplifiers. This results in pristine, detailed sound, enhanced spatial resolution, and a natural analog feel.

Precision Phono Amplifier for Moving Magnet Cartridges
Elevate your vinyl listening experience with the RA280’s precision phono amplifier, designed for moving magnet cartridges. This high-performance amplifier, activated via a simple switch, amplifies delicate audio signals without distortion. HiFi Rose’s high-precision compensation circuitry delivers sound that is remarkably close to the original recording. This ensures rich, vivid detail and superior sound quality, providing an immersive and high-fidelity music playback experience that brings your records to life.

Cutting-Edge Power Supply for Unmatched Performance
HiFi Rose’s RA280 features a state-of-the-art power supply, utilizing silicon carbide FETs for superior efficiency and reduced heat compared to traditional silicon FETs. This innovative design ensures optimal power delivery and stability. The inclusion of a 2.5 power factor correction circuit and a high-capacity condenser maintains excellent performance even under rapid load changes, ensuring consistent and high-quality sound. The fourth-generation Silicon Carbide (SiC) FET technology enhances power output while minimizing heat, supporting deep bass and precise treble tones for powerful and accurate audio reproduction.

Class AD Amplifier with GaN FET: This type of amplifier retains the efficiency of Class D amplifiers while incorporating GaN (gallium nitride) FETs to produce sound quality that is similar to that of analogue amplifiers.

Bass and treble balance control: ±15 dB bass (100 Hz) and treble (10 kHz) adjustments are possible with this high-fidelity active EQ for natural tone shaping.
Two Fully Separated Mono Amplifier Modules: Designed with independent left and right amplifier modules, each with a 250W (4Ω and 8Ω) output stage, the combined 500W stereo output improves sound clarity and spatial definition.

High-Efficiency Power Supply: A 2.5 kW power factor correction (PFC) circuit and silicon carbide FETs are used for reduced heat generation and increased efficiency, as well as consistent, dependable operation.

Moving Magnet Phono Amplifier: Using high-precision compensation circuitry, this amplifier allows moving magnet input and provides vinyl aficionados with accurate, distortion-free sound reproduction.

Design
Size: 16.9” W x 13.98” D x 4.06” H
Weight: 20.94 lbs
Body: Solid Aluminum, Rust-proof Steel

Amplifier Output
4Ω: 250W x 2ch (500W)
8Ω:

Subwoofer Output
Mono: 1Wrms (2.218 dBu)
Balanced Input: 600mV (≈ 250W x 2ch)

Input Sensitivity
Unbalanced (Line 1, 2, 3) Input: 600mV (≈ 250W x 2ch)
Phono (MM) Input: 5mV (≈ 250W x 2ch)

Input Impedance
Unbalanced (Line 1, 2, 3) Input: 47kΩ
Phono (MM) Input:

Bandwidth
- 20Hz ~ 20kHz: +0, 0dB (≈ 250W x 2ch, 8Ω Speaker Output)
- 10Hz ~ 66kHz: +0, -1dB (≈ 250W x 2ch, 8Ω Speaker Output)
- 10Hz ~ 85kHz: +0, -3dB (≈ 250W x 2ch, 8Ω Speaker Output)
- 20Hz ~ 20kHz: +0, 0dB (≈ 1W x 2ch, 8Ω Speaker Output)
- 10Hz ~ 66kHz: +0, -1dB (≈ 1W x 2ch, 8Ω Speaker Output)
- 10Hz ~ 85kHz: +0, -3dB (≈ 1W x 2ch, 8Ω Speaker Output)

Total Harmonic Distortion (THD)
Balanced & Unbalanced (Line 1, 2, 3) Input: 0.007% (@125W) (≈ 250W x 2ch)

Damping Factor
Speaker Output: >250 (≈ 250W x 2ch)

Signal to Noise Ratio (S/N)
Balanced / Unbalanced / Phono (MM): 109dB / 109dB / 85dB (≈ 250W x 2ch)

Output Impedance
Speaker Output: 30mΩ (≈ 250W x 2ch)

Tone Control
Bass (100Hz) / Treble (10kHz): ±15dB (≈ 1W x 2ch, Speaker Output)
Turnover: 500Hz (+13dB @100Hz) (≈ RIAA)
Phono (MM) Roll-off: 2.1kHz (-13.74dB @10kHz) (≈ RIAA)

Power
Output Power: 500W (SMPS) (+ Maximum Output: 600W)
Input Voltage: AC100-240V, 50/60Hz (Standby Mode Power Consumption < 0.5W)

Audio In/Out on Rear
Trigger In: Voltage can be turned on 3.3V ~ 12V
Trigger Out: Voltage can be turned on 12V

Remote Control
IR Input: 38kHz Infrared Ray (Within 10m operating distance)

Orders ship Sunday through Friday from our offices in Dubai, UAE.

In-stock products typically ship within 48 hours and should be expected to arrive in 3-4 business days. Orders outside of the UAE should be expected to arrive in 5-7 business days.

Pre-order and backorder products will state the approximate delivery timeline beside the Add To Cart button.

If you would like to place a custom order, chat with our specialists for a guided shopping experience. Once your order has been placed, a timeline will be provided depending on your order details.

- Free delivery within the UAE
- Shipping charges will be calculated upon checkout for orders outside of the UAE (Bahrain, Oman, Kuwait, Saudi Arabia & Qatar).
- Taxes and duties are calculated according to the applicable laws of the state or country an item is shipped to and are the customer's responsibility.

For additional information on shipping and our exchange & return policy visit our help center.

Installation charges are applicable and can be paid upon delivery for our clients based in Dubai.

- Installation Charges: AED 450 Per Hour
- Speaker Cables: AED 32 Per Meter
- Trunking: AED 10 Per Meter

For clients based outside of the UAE, please contact our specialists and we will share an estimate based on your requirements.