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The ARCAM A25 is the most feature‑rich and best‑equipped integrated amplifier in the Radia range, built for listeners who want a powerful, versatile “hub” for a modern hi‑fi system. ARCAM positions it as the best sounding and most feature‑rich of its Radia integrated amplifiers, pairing premium design cues with a more luxurious musical experience.
At its core is 5th Generation Class G amplification, designed to combine efficiency with audiophile performance. In real‑world use, that can mean strong dynamics, confident control over demanding speakers, and a clean, musical presentation even at realistic listening levels.
Connectivity is a major strength. You get USB‑C for direct connection to a computer (PC, Mac or even Raspberry Pi), plus coaxial and optical digital inputs. For quick wireless playback, the A25 includes Bluetooth with Qualcomm aptX Adaptive and 24‑bit HD audio, and it can also connect to Bluetooth headphones—ideal for late‑night listening. On the analogue side, there are 3 RCA input pairs and a carefully engineered MM phono stage so vinyl can sound lush and engaging, as expected from an ARCAM integrated amplifier.
If you want to compare other amplifiers and electronics from the brand, browse the full selection.
ARCAM Portugal at MestresDaMúsica
| Specification | Detail |
|---|---|
| Continuous power output (0.5% THD), per channel | 100W/8Ω (20Hz–20kHz, 2ch); 165W/4Ω (1kHz, 2ch) |
| Harmonic distortion (80% power, 8Ω @ 1kHz) | 0.002% |
| Analogue inputs | 3 (RCA pairs) |
| Analogue SNR (A‑wtd, ref. 50W, 1V input) | 106 dB |
| Analogue frequency response | 20Hz–20kHz ±0.2dB |
| Phono (MM) — input impedance | 47kΩ + 100pF |
| Phono (MM) — frequency response (ref. RIAA) | 20Hz–20kHz ±1dB |
| Digital inputs — supported sample rates | USB‑C: up to 384 kHz; Coax/Optical: up to 192 kHz |
| Supported DSD | USB‑C only: 64/128/256 |
| Bit depths | 32, 24, 16 |
| Digital SNR (A‑wtd, ref. 50W, 0dBFS) | 110 dB |
| Headphone output | 2.5V RMS (32Ω) / 5V RMS (300Ω); load 16Ω–2kΩ |
| Power consumption | Max 500W; standby <0.5W |
| Dimensions (W x D x H) | 431 x 344 x 83 mm (incl. terminals/feet) |
| Weight | 9 kg net; 12 kg packed |
| Supplied accessories | Mains lead(s), remote + 2x AAA, quick start guide, safety instructions |
At MestresDaMúsica in Viseu, we’ll help you match the right amplifier to your speakers and room, integrate digital sources (USB‑C/coax/optical), vinyl (MM phono) and Bluetooth. If you’re building an ARCAM Portugal system, we can also suggest balanced Radia combinations with streamers and CD players.
Source (manufacturer): ARCAM A25 (official site)
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