Rotel S14 black

The Rotel S14 marks a significant milestone for the Japanese manufacturer as its first integrated amplifier equipped with full streaming capabilities. This all-in-one device combines Rotel’s longstanding expertise in class AB amplification with a modern digital ecosystem. With its generous power output of 80W into 8 ohms (150W into 4 ohms), its ESS Sabre 32-bit DAC, and compatibility with major streaming services, the S14 stands out as a complete hi-fi solution that only requires the addition of speakers.

A Design That Exudes Quality

The S14 features an elegant aesthetic true to Rotel’s DNA, with a substantial brushed aluminum front panel available in a silver finish. The device boasts considerable dimensions (430 × 93 × 345 mm) and a respectable weight of 9.15 kg, reflecting its robust construction. The front panel includes a color display that shows album covers and track information during playback, adding a contemporary touch to this classic design.

Inside, Rotel has made no compromises. At the heart of the system is an oversized toroidal transformer manufactured by Rotel, powering high-current output transistors. This traditional approach ensures a substantial power reserve and excellent ability to control demanding speakers, with an impressive damping factor of 400.

Old-School Amplification for Modern Sound

Going against the current trend favoring more compact and energy-efficient class D amplifiers, Rotel remains faithful to class AB amplification for its S14. This choice, far from being outdated, allows for particularly musical and natural sound reproduction. The 80 watts per channel into 8 ohms (150W into 4 ohms) are delivered with a very low total harmonic distortion of 0.04%.

Listening tests confirm that the S14 possesses Rotel’s characteristic sound signature: finely defined highs, warm mids, and precise, well-present bass. The amplifier excels in its ability to dynamically reproduce all musical genres, with an open soundstage and precise instrument placement. Even at high volume, the highs never become harsh, demonstrating excellent control over distortion.

A Complete Digital Universe

The S14’s digital section is built around an ESS Sabre 32-bit converter capable of processing PCM files up to 384 kHz and fully decoding MQA files. This chip, renowned for its precision and definition, ensures optimal conversion of digital sources.

The S14 stands out for its versatility in network connectivity. It features dual-band Wi-Fi, an RJ45 Ethernet port, and Bluetooth with aptX HD codec support for high-quality wireless transmission. In terms of protocols, the device is compatible with Chromecast built-in, Apple AirPlay 2, Spotify Connect, and TIDAL Connect. Roon Ready certification also allows for easy integration into a more sophisticated audiophile ecosystem.

Connectivity Suited to Modern Needs

The rear panel of the S14 offers comprehensive yet not excessive connectivity. There is an analog RCA line input, a coaxial digital input, and an optical input accepting signals up to 24-bit/192 kHz, as well as a USB-B input for computer connection (up to 32-bit/384 kHz). A USB-A port also allows direct playback from a USB drive (up to 24-bit/192 kHz).

On the output side, the S14 features a stereo RCA preamp output, a mono subwoofer output, and a 3.5 mm mini-jack headphone output on the front panel. This configuration covers most needs of a modern stereo setup, though some users may regret the absence of a phono input and HDMI eARC input.

A Complete Streaming Ecosystem

The integration of streaming services is a major asset of the S14. The device allows direct access to virtually unlimited music catalogs via Spotify Connect, TIDAL (with MQA support), and Qobuz. Thousands of internet radio stations and podcasts are also available.

To control these features, Rotel offers a dedicated app for iOS and Android. This app not only allows navigation through streaming services but also lets you control all amplifier settings. The front display complements this user experience by clearly showing playback information and album covers.

Sound Performance and Versatility

In listening tests, the S14 proves particularly convincing. Its generous amplification allows it to drive both bookshelf speakers and larger floorstanding models. Even demanding speakers such as the Bowers & Wilkins 702 S3 are properly handled by the S14.

The S14’s balanced sound signature makes it a versatile amplifier, capable of adapting to all musical genres. The bass is fast and deep, the mids are transparent without being clinical, and the highs are detailed without harshness. Notably, even the sound quality via Bluetooth connection has been praised as particularly successful, which is rare for this type of connection often considered a last resort by audiophiles.

Positioning Within the Rotel Range

The S14 can be seen as a modern evolution of the A14 MKII, to which Rotel has added advanced streaming features. Compared to the RA1572 MKII (also in the Rotel lineup), the S14 offers the advantage of integrated network features, although the RA1572 MKII is slightly more powerful and less expensive.

In the competitive landscape, the S14 positions itself as a serious alternative to the Naim Uniti Atom and NAD M10. Its distinctive feature is maintaining a more traditional approach to amplification (class AB) while offering modern connected features.

Technical Specifications

Amplification

• Class AB amplifier
• Output power:
  • Maximum: 150 W / channel (4 Ω)
  • Continuous: 80 W / channel (8 Ω)

Audio Processing

• Digital-to-analog converter: ESS Sabre 32-bit / 368 kHz
• Roon Ready certified
• Compatible with MQA, MQA Studio

Analog Section

• Frequency response: 10 Hz - 100 kHz, ± 0.5 dB
• Input sensitivity / impedance: 200 mV / 47 kΩ
• Input overload threshold: 4.5 V
• Bass and treble tone control: ± 10 dB at 100 Hz / 10 kHz
• Signal-to-noise ratio (IHF A-weighted): 100 dB

Digital Section

• Frequency response: 10 Hz - 90 kHz (± 2 dB max.)
• Signal-to-noise ratio (IHF A-weighted): 98 dB
• Input sensitivity / impedance: -20 dBFS / 75 Ω

Connectivity

• Analog inputs: 1 RCA
• Outputs:
  • 1 RCA preamp
  • 1 subwoofer
  • 1 headphone mini-jack 3.5 mm
• Digital inputs:
  • 1 USB Audio Class 2.0 (up to 24-bit / 384 kHz)
  • 1 optical and coaxial LPCM (up to 24-bit / 192 kHz)
• Connectivity:
  • 1 Ethernet port
  • Dual-band Wi-Fi
  • High-definition Bluetooth (aptX HD) and AAC
  • 1 USB 5 V port for peripheral power supply

Physical Characteristics

• Power supply: 230 V, 50 Hz
• Power consumption:
  • Standby: < 0.5 W
  • Operating: 280 W
• Dimensions: 430 × 93 × 345 mm (W × H × D)
  • Front panel height: 80 mm
• Net weight: 9.15 kg