Arcam A25+ with ST25 Streamer and Bowers & Wilkins 606 S3 (2025 Model)
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Arcam A25+ with ST25 Streamer and Bowers & Wilkins 606 S3 (2025...
It was way back in the mid-1970s when Doug Brady showcased the first amplifier from A&R Cambridge (as the company was then known) — the A60, which featured in many of our magazine adverts. The Arcam A25 continued that legacy with great success, earning a reputation for performance and reliability. Naturally, expectations are high for its successor, the Arcam A25+, which is set to carry the torch forward.
Features
- Wireless audio with Bluetooth 5.4
- Featuring Snapdragon Sound for wireless lossless audio
- Featuring Auracast for connecting wireless headphones or speakers to play music in multiple spaces
- HDMI eARC and USB-C inputs
- Hi-res audio ESS ES9018 DAC
- Meticulously tuned phono stage
- Class G amplification
- 2x 100 Watts (8Ω) Power Output
- Compact remote control
- Solid aluminium dials
- A 6.5" high-resolution bonded display
- Aluminium front, top, sides and rear panels
- Plastic free packaging
The Best of the Radia+ Range
The ARCAM A25+ is the best sounding and most versatile of Arcam’s Radia+ integrated amplifiers. The A25+ is the latest in nearly 50 years of amplifier design and manufacture, dating back to their first product in 1976 — the A&R Cambridge A60 amplifier.
Continuous Innovation
Since the launch of the award-winning ARCAM Radia A25, it is clear they haven’t rested. Their engineering team pushed further to create the premium ARCAM A25+, an even better sounding and more versatile integrated amplifier.
Extensive Connectivity
With a wide array of analogue inputs, including a meticulously tuned phono stage, and digital inputs including HDMI eARC and USB-C, the A25+ provides impactful sound for everything from vinyl to TV and streaming.
Cutting-Edge Performance
The A25+ features an enhanced power supply design, a new DAC, and cutting-edge wireless capabilities straight out of the box. Snapdragon Sound delivers uncompressed digital audio via Bluetooth, while Auracast enables multiple compatible headphones or speakers to share music wirelessly, with no pairing required.
Superior Amplification Technology
Powered by our 5th generation Class G amplifier design, you can expect the best sound quality and dynamics from what has always been a better sounding and more efficient class of amplifier.
Perfect Stream for ARCAM Radia
The ARCAM ST25 is an ideal high-resolution audio upgrade for any Hi-Fi system, particularly when paired with the ARCAM Radia A25+ amplifier. The ST25 includes a control link to integrate seamlessly with Radia amplifiers, allowing the two components to function as one unit. This combination enhances the listening experience by providing isolated components with their own power supplies for superior sound quality.
Advanced Audio Engineering
The ST25 is a state-of-the-art digital audio player designed and crafted in Cambridge, UK. It features an all-new digital audio and streaming platform, a linear toroidal power supply, a user-friendly interface, and a dedicated app. This combination ensures that the player delivers top-tier audio performance for the most discerning listeners.
Precision in Sound Quality
The ST25’s sound quality is achieved through meticulous engineering, incorporating a 6-layer digital audio and streaming platform. A ground plane runs through the entire board, reducing noise and interference, while advanced components like the Hyperstream iV DAC from ESS, in a balanced configuration, enhance sound precision with jitter elimination. The linear toroidal transformer power supply further reduces noise and improves overall efficiency, particularly when in standby mode.
High-Resolution Display and Easy Connectivity
A 6.5" high-resolution bonded display on the ST25 provides clear album artwork and metadata, easily visible from your seating area. The player supports a wide range of devices, including smartphones and tablets, and works seamlessly with popular streaming services. Connecting to your home network is straightforward with the ARCAM Radia App, enabling instant playback via Apple Airplay, Google Cast, Spotify Connect, Tidal Connect, and Roon.
The Acclaimed 606
Prepare to embark on a journey of musical enjoyment with the Bowers & Wilkins 606 S3. Building upon the foundation of the acclaimed 606 formula, this speaker takes innovation to a new level. With meticulous enhancements and a subtly refreshed design, the 606 S3 is poised to captivate an even wider array of music enthusiasts.
The heart of the 606 S3 lies in its Continuum cone and Titanium Dome tweeter, which have been cherished elements of this iconic speaker. However, the 606 S3 introduces refined upgrades that elevate its performance. Upgraded speaker terminals ensure seamless connectivity, enhancing the speaker's functionality while maintaining its commitment to delivering unrivaled sound quality.
The design of the 606 S3 has also been thoughtfully modernised, reflecting a timeless yet contemporary aesthetic. This visual evolution enhances the speaker's appeal, making it even more irresistible to discerning music lovers.
The Bowers & Wilkins 606 S3 is more than a speaker; it's a testament to Bowers & Wilkins dedication to continuous improvement and innovation. With a fusion of acclaimed technologies and thoughtful enhancements, the 606 S3 offers a truly amazing sonic experience. Immerse yourself in the magic of music as it was meant to be heard, and allow the 606 S3 to redefine your perception of audio excellence.
You can also take your listening experience to new heights by placing these speakers on the Bowers & Wilkins FS-600 S3 Speaker Stands (sold separately) to reduce vibrations and improve the soundstage.
A25+ Integrated Amplifier Specifications
| Continuous Power Output: | (0.5% THD) 2 channels driven |
| 8Ω, 20Hz – 20kHz: | 100W |
| 4Ω, 1kHz: | 165W |
| Harmonic Distortion: | 80% power, 8Ω at 1kHz: 0.002% |
| Analogue Inputs – Number Of Inputs: | 3 (RCA pairs) |
| Analogue Inputs – Signal/Noise Ratio: | (A-weighted, ref. 50W, 1V input): 106dB |
| Analogue Inputs – Frequency Response: | 20Hz—20kHz ± 0.2dB |
| Phono (MM) Input – Input Impedance: | 47kΩ + 100pF |
| Phono (MM) Input – Frequency Response: | (ref. RIAA curve): 20Hz—20kHz ± 1dB |
| Digital Inputs – Supported Sample Rates: | USB-C Only: 384, 352.8, 192, 176.4, 96, 88.2, 48, 44.1 kHz; All other digital inputs: 192, 176.4, 96, 88.2, 48, 44.1 kHz |
| Digital Inputs – Bit Depths: | 32, 24, 16 |
| Digital Inputs – Supported DSD Rates: | USB-C Only: 256, 128, 64 |
| Digital Inputs – Frequency Response: | (Filter 1): 20Hz—20kHz ± 0.2dB |
| Digital Inputs – Signal/Noise Ratio: | (A-weighted, ref. 50W, 0dBFS): 109dB |
| Headphone Output – Maximum Output Level: | (RMS) into 32Ω / 300Ω: 2.5V / 5V |
| Headphone Output – Load Range: | 16Ω – 2kΩ |
| Wireless Specifications – Bluetooth Version: | 5.4; A2DP Sink/Source, AVRCP, BLE, Snapdragon Sound, AAC, LE Audio, Auracast |
| Wireless Specifications – Bluetooth Transmitter Frequency And Power: | 2,400 MHz to 2,483.5 MHz: <20dBm |
| General – Mains Voltage: | 100V or 110–120V or 220–240V, 50–60Hz |
| General – Power Consumption (Maximum): | 500W |
| General – Power Consumption (Standby): | <0.5W |
| General – Dimensions (W x D x H): | Including speaker terminals and feet: 431 x 344 x 83mm |
| General – Weight (Net): | 9 kg |
| General – Weight (Packed): | 12 kg |
| Supplied Accessories: | Mains lead(s), Remote control with 2 x AAA batteries, Quick Start Guide, Important Safety Instructions |
ST25 Streamer Specifications
| Works With (Apps) | ARCAM Radia, Spotify (Connect), Tidal (Connect), Roon |
| Works With (Services) | Apple Airplay, Google Cast |
| ARCAM Radia Supported Services (Global) | Internet Radio, Podcasts, UPnP, USB Media (using USB-A mass storage input) |
| Audio Section | |
| Supported Media | FLAC, WAV (LPCM), AAC, ALAC, AIFF, DSD (up to 256), MP3, MP4, OGG, WMA |
| Supported Bit Depth | 16, 24, 32 |
| Supported Sample Rates (kHz) | Up to 384 kHz |
| Gapless Playback | Yes |
| Digital Audio Outputs | 1x Coaxial (RCA), 1x Optical (Toslink) |
| Analogue Audio Outputs | 1x Stereo (RCA) pair |
| Wireless Specification | |
| Wi-Fi Network | IEEE 8002.11 a/b/g/n/ac/ax (2.4GHz/5GHz) |
| 2.4G Wi-Fi Transmitter Frequency Range and Power | 2400-2483.5 MHz (USA 11 Channels, Europe and Others 13 Channels) < 20dBm |
| 5G Wi-Fi Transmitter Frequency Range and Power | 5150-5250 MHz < 23dBm, 5250-5350 MHz & 5470-5725 MHz < 20dBm, 5725-5850 MHz < 14dBm |
| General | |
| Mains Voltage | 100V or 110–120V or 220–240V, 50–60Hz |
| Power Consumption | 15W |
| Power Consumption (Eco Standby) | < 0.5W |
| Dimensions W x D x H (Including Feet) | 432 x 329 x 99mm |
| Weight (Net) | 5 kg |
| Weight (Packed) | 7 kg |
606 S3 Speaker Specifications
| Technical Features: | - Decoupled Double Dome Titanium tweeter - Continuum™ cone bass/midrange - Flowport™ |
| Frequency Response (+/-3dB): | 52Hz - 28kHz ±3dB |
| Description: | 2-way vented-box system |
| Drive Units: | - 1x ø25mm (1 in) Titanium Dome high-frequency - 1x ø165mm (6.5 in) Continuum cone bass/midrange |
| Frequency Range (-6dB): | 40Hz - 33kHz |
| Sensitivity: | 88dB (on axis at 2.83Vrms at 1m) |
| Harmonic Distortion: | - 2nd and 3rd harmonics (90dB, 1m on axis): <1% 100Hz - 22kHz <0.5% 150Hz - 12kHz |
| Nominal Impedance: | 8Ω (minimum 3.7Ω) |
| Recommended Amplifier Power: | 30W - 120W into 8Ω on unclipped programme |
| Max Recommended Cable Impedance: | 0.1Ω |
| Finishes: | - Cabinet finishes: Black, White, Oak - Grille finishes: Black (Black), Grey (White and Oak) |
| Dimensions: | - Height: 344 mm (13.6 in) cabinet only - Width: 189 mm (7.4 in) cabinet only - Depth: 300 mm (11.8 in) cabinet only 328 mm (12.9 in) including grille and terminals |
| Net Weight: | 7.05kg (15.5 lb) |
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